Adding upstream version 5:7.0.15.upstream/5%7.0.15upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2406 insertions, 0 deletions

diff --git a/deps/jemalloc/configure.ac b/deps/jemalloc/configure.ac
new file mode 100644
index 0000000..f867172
--- /dev/null
+++ b/deps/jemalloc/configure.ac
@@ -0,0 +1,2406 @@
+dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.68)
+AC_INIT([Makefile.in])
+
+AC_CONFIG_AUX_DIR([build-aux])
+
+dnl ============================================================================
+dnl Custom macro definitions.
+
+dnl JE_CONCAT_VVV(r, a, b)
+dnl
+dnl Set $r to the concatenation of $a and $b, with a space separating them iff
+dnl both $a and $b are non-empty.
+AC_DEFUN([JE_CONCAT_VVV],
+if test "x[$]{$2}" = "x" -o "x[$]{$3}" = "x" ; then
+  $1="[$]{$2}[$]{$3}"
+else
+  $1="[$]{$2} [$]{$3}"
+fi
+)
+
+dnl JE_APPEND_VS(a, b)
+dnl
+dnl Set $a to the concatenation of $a and b, with a space separating them iff
+dnl both $a and b are non-empty.
+AC_DEFUN([JE_APPEND_VS],
+  T_APPEND_V=$2
+  JE_CONCAT_VVV($1, $1, T_APPEND_V)
+)
+
+CONFIGURE_CFLAGS=
+SPECIFIED_CFLAGS="${CFLAGS}"
+dnl JE_CFLAGS_ADD(cflag)
+dnl
+dnl CFLAGS is the concatenation of CONFIGURE_CFLAGS and SPECIFIED_CFLAGS
+dnl (ignoring EXTRA_CFLAGS, which does not impact configure tests.  This macro
+dnl appends to CONFIGURE_CFLAGS and regenerates CFLAGS.
+AC_DEFUN([JE_CFLAGS_ADD],
+[
+AC_MSG_CHECKING([whether compiler supports $1])
+T_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+JE_APPEND_VS(CONFIGURE_CFLAGS, $1)
+JE_CONCAT_VVV(CFLAGS, CONFIGURE_CFLAGS, SPECIFIED_CFLAGS)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[
+]], [[
+    return 0;
+]])],
+              [je_cv_cflags_added=$1]
+              AC_MSG_RESULT([yes]),
+              [je_cv_cflags_added=]
+              AC_MSG_RESULT([no])
+              [CONFIGURE_CFLAGS="${T_CONFIGURE_CFLAGS}"]
+)
+JE_CONCAT_VVV(CFLAGS, CONFIGURE_CFLAGS, SPECIFIED_CFLAGS)
+])
+
+dnl JE_CFLAGS_SAVE()
+dnl JE_CFLAGS_RESTORE()
+dnl
+dnl Save/restore CFLAGS.  Nesting is not supported.
+AC_DEFUN([JE_CFLAGS_SAVE],
+SAVED_CONFIGURE_CFLAGS="${CONFIGURE_CFLAGS}"
+)
+AC_DEFUN([JE_CFLAGS_RESTORE],
+CONFIGURE_CFLAGS="${SAVED_CONFIGURE_CFLAGS}"
+JE_CONCAT_VVV(CFLAGS, CONFIGURE_CFLAGS, SPECIFIED_CFLAGS)
+)
+
+CONFIGURE_CXXFLAGS=
+SPECIFIED_CXXFLAGS="${CXXFLAGS}"
+dnl JE_CXXFLAGS_ADD(cxxflag)
+AC_DEFUN([JE_CXXFLAGS_ADD],
+[
+AC_MSG_CHECKING([whether compiler supports $1])
+T_CONFIGURE_CXXFLAGS="${CONFIGURE_CXXFLAGS}"
+JE_APPEND_VS(CONFIGURE_CXXFLAGS, $1)
+JE_CONCAT_VVV(CXXFLAGS, CONFIGURE_CXXFLAGS, SPECIFIED_CXXFLAGS)
+AC_LANG_PUSH([C++])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[
+]], [[
+    return 0;
+]])],
+              [je_cv_cxxflags_added=$1]
+              AC_MSG_RESULT([yes]),
+              [je_cv_cxxflags_added=]
+              AC_MSG_RESULT([no])
+              [CONFIGURE_CXXFLAGS="${T_CONFIGURE_CXXFLAGS}"]
+)
+AC_LANG_POP([C++])
+JE_CONCAT_VVV(CXXFLAGS, CONFIGURE_CXXFLAGS, SPECIFIED_CXXFLAGS)
+])
+
+dnl JE_COMPILABLE(label, hcode, mcode, rvar)
+dnl
+dnl Use AC_LINK_IFELSE() rather than AC_COMPILE_IFELSE() so that linker errors
+dnl cause failure.
+AC_DEFUN([JE_COMPILABLE],
+[
+AC_CACHE_CHECK([whether $1 is compilable],
+               [$4],
+               [AC_LINK_IFELSE([AC_LANG_PROGRAM([$2],
+                                                [$3])],
+                               [$4=yes],
+                               [$4=no])])
+])
+
+dnl ============================================================================
+
+CONFIG=`echo ${ac_configure_args} | sed -e 's#'"'"'\([^ ]*\)'"'"'#\1#g'`
+AC_SUBST([CONFIG])
+
+dnl Library revision.
+rev=2
+AC_SUBST([rev])
+
+srcroot=$srcdir
+if test "x${srcroot}" = "x." ; then
+  srcroot=""
+else
+  srcroot="${srcroot}/"
+fi
+AC_SUBST([srcroot])
+abs_srcroot="`cd \"${srcdir}\"; pwd`/"
+AC_SUBST([abs_srcroot])
+
+objroot=""
+AC_SUBST([objroot])
+abs_objroot="`pwd`/"
+AC_SUBST([abs_objroot])
+
+dnl Munge install path variables.
+if test "x$prefix" = "xNONE" ; then
+  prefix="/usr/local"
+fi
+if test "x$exec_prefix" = "xNONE" ; then
+  exec_prefix=$prefix
+fi
+PREFIX=$prefix
+AC_SUBST([PREFIX])
+BINDIR=`eval echo $bindir`
+BINDIR=`eval echo $BINDIR`
+AC_SUBST([BINDIR])
+INCLUDEDIR=`eval echo $includedir`
+INCLUDEDIR=`eval echo $INCLUDEDIR`
+AC_SUBST([INCLUDEDIR])
+LIBDIR=`eval echo $libdir`
+LIBDIR=`eval echo $LIBDIR`
+AC_SUBST([LIBDIR])
+DATADIR=`eval echo $datadir`
+DATADIR=`eval echo $DATADIR`
+AC_SUBST([DATADIR])
+MANDIR=`eval echo $mandir`
+MANDIR=`eval echo $MANDIR`
+AC_SUBST([MANDIR])
+
+dnl Support for building documentation.
+AC_PATH_PROG([XSLTPROC], [xsltproc], [false], [$PATH])
+if test -d "/usr/share/xml/docbook/stylesheet/docbook-xsl" ; then
+  DEFAULT_XSLROOT="/usr/share/xml/docbook/stylesheet/docbook-xsl"
+elif test -d "/usr/share/sgml/docbook/xsl-stylesheets" ; then
+  DEFAULT_XSLROOT="/usr/share/sgml/docbook/xsl-stylesheets"
+else
+  dnl Documentation building will fail if this default gets used.
+  DEFAULT_XSLROOT=""
+fi
+AC_ARG_WITH([xslroot],
+  [AS_HELP_STRING([--with-xslroot=<path>], [XSL stylesheet root path])], [
+if test "x$with_xslroot" = "xno" ; then
+  XSLROOT="${DEFAULT_XSLROOT}"
+else
+  XSLROOT="${with_xslroot}"
+fi
+],
+  XSLROOT="${DEFAULT_XSLROOT}"
+)
+if test "x$XSLTPROC" = "xfalse" ; then
+  XSLROOT=""
+fi
+AC_SUBST([XSLROOT])
+
+dnl If CFLAGS isn't defined, set CFLAGS to something reasonable.  Otherwise,
+dnl just prevent autoconf from molesting CFLAGS.
+CFLAGS=$CFLAGS
+AC_PROG_CC
+
+if test "x$GCC" != "xyes" ; then
+  AC_CACHE_CHECK([whether compiler is MSVC],
+                 [je_cv_msvc],
+                 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
+                                                     [
+#ifndef _MSC_VER
+  int fail[-1];
+#endif
+])],
+                               [je_cv_msvc=yes],
+                               [je_cv_msvc=no])])
+fi
+
+dnl check if a cray prgenv wrapper compiler is being used
+je_cv_cray_prgenv_wrapper=""
+if test "x${PE_ENV}" != "x" ; then
+  case "${CC}" in
+    CC|cc)
+	je_cv_cray_prgenv_wrapper="yes"
+	;;
+    *)
+       ;;
+  esac
+fi
+
+AC_CACHE_CHECK([whether compiler is cray],
+              [je_cv_cray],
+              [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
+                                                  [
+#ifndef _CRAYC
+  int fail[-1];
+#endif
+])],
+                            [je_cv_cray=yes],
+                            [je_cv_cray=no])])
+
+if test "x${je_cv_cray}" = "xyes" ; then
+  AC_CACHE_CHECK([whether cray compiler version is 8.4],
+                [je_cv_cray_84],
+                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
+                                                      [
+#if !(_RELEASE_MAJOR == 8 && _RELEASE_MINOR == 4)
+  int fail[-1];
+#endif
+])],
+                              [je_cv_cray_84=yes],
+                              [je_cv_cray_84=no])])
+fi
+
+if test "x$GCC" = "xyes" ; then
+  JE_CFLAGS_ADD([-std=gnu11])
+  if test "x$je_cv_cflags_added" = "x-std=gnu11" ; then
+    AC_DEFINE_UNQUOTED([JEMALLOC_HAS_RESTRICT])
+  else
+    JE_CFLAGS_ADD([-std=gnu99])
+    if test "x$je_cv_cflags_added" = "x-std=gnu99" ; then
+      AC_DEFINE_UNQUOTED([JEMALLOC_HAS_RESTRICT])
+    fi
+  fi
+  JE_CFLAGS_ADD([-Wall])
+  JE_CFLAGS_ADD([-Wextra])
+  JE_CFLAGS_ADD([-Wshorten-64-to-32])
+  JE_CFLAGS_ADD([-Wsign-compare])
+  JE_CFLAGS_ADD([-Wundef])
+  JE_CFLAGS_ADD([-Wno-format-zero-length])
+  JE_CFLAGS_ADD([-pipe])
+  JE_CFLAGS_ADD([-g3])
+elif test "x$je_cv_msvc" = "xyes" ; then
+  CC="$CC -nologo"
+  JE_CFLAGS_ADD([-Zi])
+  JE_CFLAGS_ADD([-MT])
+  JE_CFLAGS_ADD([-W3])
+  JE_CFLAGS_ADD([-FS])
+  JE_APPEND_VS(CPPFLAGS, -I${srcdir}/include/msvc_compat)
+fi
+if test "x$je_cv_cray" = "xyes" ; then
+  dnl cray compiler 8.4 has an inlining bug
+  if test "x$je_cv_cray_84" = "xyes" ; then
+    JE_CFLAGS_ADD([-hipa2])
+    JE_CFLAGS_ADD([-hnognu])
+  fi
+  dnl ignore unreachable code warning
+  JE_CFLAGS_ADD([-hnomessage=128])
+  dnl ignore redefinition of "malloc", "free", etc warning
+  JE_CFLAGS_ADD([-hnomessage=1357])
+fi
+AC_SUBST([CONFIGURE_CFLAGS])
+AC_SUBST([SPECIFIED_CFLAGS])
+AC_SUBST([EXTRA_CFLAGS])
+AC_PROG_CPP
+
+AC_ARG_ENABLE([cxx],
+  [AS_HELP_STRING([--disable-cxx], [Disable C++ integration])],
+if test "x$enable_cxx" = "xno" ; then
+  enable_cxx="0"
+else
+  enable_cxx="1"
+fi
+,
+enable_cxx="1"
+)
+if test "x$enable_cxx" = "x1" ; then
+  dnl Require at least c++14, which is the first version to support sized
+  dnl deallocation.  C++ support is not compiled otherwise.
+  m4_include([m4/ax_cxx_compile_stdcxx.m4])
+  AX_CXX_COMPILE_STDCXX([14], [noext], [optional])
+  if test "x${HAVE_CXX14}" = "x1" ; then
+    JE_CXXFLAGS_ADD([-Wall])
+    JE_CXXFLAGS_ADD([-Wextra])
+    JE_CXXFLAGS_ADD([-g3])
+
+    SAVED_LIBS="${LIBS}"
+    JE_APPEND_VS(LIBS, -lstdc++)
+    JE_COMPILABLE([libstdc++ linkage], [
+#include <stdlib.h>
+], [[
+	int *arr = (int *)malloc(sizeof(int) * 42);
+	if (arr == NULL)
+		return 1;
+]], [je_cv_libstdcxx])
+    if test "x${je_cv_libstdcxx}" = "xno" ; then
+      LIBS="${SAVED_LIBS}"
+    fi
+  else
+    enable_cxx="0"
+  fi
+fi
+AC_SUBST([enable_cxx])
+AC_SUBST([CONFIGURE_CXXFLAGS])
+AC_SUBST([SPECIFIED_CXXFLAGS])
+AC_SUBST([EXTRA_CXXFLAGS])
+
+AC_C_BIGENDIAN([ac_cv_big_endian=1], [ac_cv_big_endian=0])
+if test "x${ac_cv_big_endian}" = "x1" ; then
+  AC_DEFINE_UNQUOTED([JEMALLOC_BIG_ENDIAN], [ ])
+fi
+
+if test "x${je_cv_msvc}" = "xyes" -a "x${ac_cv_header_inttypes_h}" = "xno"; then
+  JE_APPEND_VS(CPPFLAGS, -I${srcdir}/include/msvc_compat/C99)
+fi
+
+if test "x${je_cv_msvc}" = "xyes" ; then
+  LG_SIZEOF_PTR=LG_SIZEOF_PTR_WIN
+  AC_MSG_RESULT([Using a predefined value for sizeof(void *): 4 for 32-bit, 8 for 64-bit])
+else
+  AC_CHECK_SIZEOF([void *])
+  if test "x${ac_cv_sizeof_void_p}" = "x8" ; then
+    LG_SIZEOF_PTR=3
+  elif test "x${ac_cv_sizeof_void_p}" = "x4" ; then
+    LG_SIZEOF_PTR=2
+  else
+    AC_MSG_ERROR([Unsupported pointer size: ${ac_cv_sizeof_void_p}])
+  fi
+fi
+AC_DEFINE_UNQUOTED([LG_SIZEOF_PTR], [$LG_SIZEOF_PTR])
+
+AC_CHECK_SIZEOF([int])
+if test "x${ac_cv_sizeof_int}" = "x8" ; then
+  LG_SIZEOF_INT=3
+elif test "x${ac_cv_sizeof_int}" = "x4" ; then
+  LG_SIZEOF_INT=2
+else
+  AC_MSG_ERROR([Unsupported int size: ${ac_cv_sizeof_int}])
+fi
+AC_DEFINE_UNQUOTED([LG_SIZEOF_INT], [$LG_SIZEOF_INT])
+
+AC_CHECK_SIZEOF([long])
+if test "x${ac_cv_sizeof_long}" = "x8" ; then
+  LG_SIZEOF_LONG=3
+elif test "x${ac_cv_sizeof_long}" = "x4" ; then
+  LG_SIZEOF_LONG=2
+else
+  AC_MSG_ERROR([Unsupported long size: ${ac_cv_sizeof_long}])
+fi
+AC_DEFINE_UNQUOTED([LG_SIZEOF_LONG], [$LG_SIZEOF_LONG])
+
+AC_CHECK_SIZEOF([long long])
+if test "x${ac_cv_sizeof_long_long}" = "x8" ; then
+  LG_SIZEOF_LONG_LONG=3
+elif test "x${ac_cv_sizeof_long_long}" = "x4" ; then
+  LG_SIZEOF_LONG_LONG=2
+else
+  AC_MSG_ERROR([Unsupported long long size: ${ac_cv_sizeof_long_long}])
+fi
+AC_DEFINE_UNQUOTED([LG_SIZEOF_LONG_LONG], [$LG_SIZEOF_LONG_LONG])
+
+AC_CHECK_SIZEOF([intmax_t])
+if test "x${ac_cv_sizeof_intmax_t}" = "x16" ; then
+  LG_SIZEOF_INTMAX_T=4
+elif test "x${ac_cv_sizeof_intmax_t}" = "x8" ; then
+  LG_SIZEOF_INTMAX_T=3
+elif test "x${ac_cv_sizeof_intmax_t}" = "x4" ; then
+  LG_SIZEOF_INTMAX_T=2
+else
+  AC_MSG_ERROR([Unsupported intmax_t size: ${ac_cv_sizeof_intmax_t}])
+fi
+AC_DEFINE_UNQUOTED([LG_SIZEOF_INTMAX_T], [$LG_SIZEOF_INTMAX_T])
+
+AC_CANONICAL_HOST
+dnl CPU-specific settings.
+CPU_SPINWAIT=""
+case "${host_cpu}" in
+  i686|x86_64)
+	HAVE_CPU_SPINWAIT=1
+	if test "x${je_cv_msvc}" = "xyes" ; then
+	    AC_CACHE_VAL([je_cv_pause_msvc],
+	      [JE_COMPILABLE([pause instruction MSVC], [],
+					[[_mm_pause(); return 0;]],
+					[je_cv_pause_msvc])])
+	    if test "x${je_cv_pause_msvc}" = "xyes" ; then
+		CPU_SPINWAIT='_mm_pause()'
+	    fi
+	else
+	    AC_CACHE_VAL([je_cv_pause],
+	      [JE_COMPILABLE([pause instruction], [],
+					[[__asm__ volatile("pause"); return 0;]],
+					[je_cv_pause])])
+	    if test "x${je_cv_pause}" = "xyes" ; then
+		CPU_SPINWAIT='__asm__ volatile("pause")'
+	    fi
+	fi
+	;;
+  *)
+	HAVE_CPU_SPINWAIT=0
+	;;
+esac
+AC_DEFINE_UNQUOTED([HAVE_CPU_SPINWAIT], [$HAVE_CPU_SPINWAIT])
+AC_DEFINE_UNQUOTED([CPU_SPINWAIT], [$CPU_SPINWAIT])
+
+AC_ARG_WITH([lg_vaddr],
+  [AS_HELP_STRING([--with-lg-vaddr=<lg-vaddr>], [Number of significant virtual address bits])],
+  [LG_VADDR="$with_lg_vaddr"], [LG_VADDR="detect"])
+
+case "${host_cpu}" in
+  aarch64)
+    if test "x$LG_VADDR" = "xdetect"; then
+      AC_MSG_CHECKING([number of significant virtual address bits])
+      if test "x${LG_SIZEOF_PTR}" = "x2" ; then
+        #aarch64 ILP32
+        LG_VADDR=32
+      else
+        #aarch64 LP64
+        LG_VADDR=48
+      fi
+      AC_MSG_RESULT([$LG_VADDR])
+    fi
+    ;;
+  x86_64)
+    if test "x$LG_VADDR" = "xdetect"; then
+      AC_CACHE_CHECK([number of significant virtual address bits],
+                     [je_cv_lg_vaddr],
+                     AC_RUN_IFELSE([AC_LANG_PROGRAM(
+[[
+#include <stdio.h>
+#ifdef _WIN32
+#include <limits.h>
+#include <intrin.h>
+typedef unsigned __int32 uint32_t;
+#else
+#include <stdint.h>
+#endif
+]], [[
+	uint32_t r[[4]];
+	uint32_t eax_in = 0x80000008U;
+#ifdef _WIN32
+	__cpuid((int *)r, (int)eax_in);
+#else
+	asm volatile ("cpuid"
+	    : "=a" (r[[0]]), "=b" (r[[1]]), "=c" (r[[2]]), "=d" (r[[3]])
+	    : "a" (eax_in), "c" (0)
+	);
+#endif
+	uint32_t eax_out = r[[0]];
+	uint32_t vaddr = ((eax_out & 0x0000ff00U) >> 8);
+	FILE *f = fopen("conftest.out", "w");
+	if (f == NULL) {
+		return 1;
+	}
+	if (vaddr > (sizeof(void *) << 3)) {
+		vaddr = sizeof(void *) << 3;
+	}
+	fprintf(f, "%u", vaddr);
+	fclose(f);
+	return 0;
+]])],
+                   [je_cv_lg_vaddr=`cat conftest.out`],
+                   [je_cv_lg_vaddr=error],
+                   [je_cv_lg_vaddr=57]))
+      if test "x${je_cv_lg_vaddr}" != "x" ; then
+        LG_VADDR="${je_cv_lg_vaddr}"
+      fi
+      if test "x${LG_VADDR}" != "xerror" ; then
+        AC_DEFINE_UNQUOTED([LG_VADDR], [$LG_VADDR])
+      else
+        AC_MSG_ERROR([cannot determine number of significant virtual address bits])
+      fi
+    fi
+    ;;
+  *)
+    if test "x$LG_VADDR" = "xdetect"; then
+      AC_MSG_CHECKING([number of significant virtual address bits])
+      if test "x${LG_SIZEOF_PTR}" = "x3" ; then
+        LG_VADDR=64
+      elif test "x${LG_SIZEOF_PTR}" = "x2" ; then
+        LG_VADDR=32
+      elif test "x${LG_SIZEOF_PTR}" = "xLG_SIZEOF_PTR_WIN" ; then
+        LG_VADDR="(1U << (LG_SIZEOF_PTR_WIN+3))"
+      else
+        AC_MSG_ERROR([Unsupported lg(pointer size): ${LG_SIZEOF_PTR}])
+      fi
+      AC_MSG_RESULT([$LG_VADDR])
+    fi
+    ;;
+esac
+AC_DEFINE_UNQUOTED([LG_VADDR], [$LG_VADDR])
+
+LD_PRELOAD_VAR="LD_PRELOAD"
+so="so"
+importlib="${so}"
+o="$ac_objext"
+a="a"
+exe="$ac_exeext"
+libprefix="lib"
+link_whole_archive="0"
+DSO_LDFLAGS='-shared -Wl,-soname,$(@F)'
+RPATH='-Wl,-rpath,$(1)'
+SOREV="${so}.${rev}"
+PIC_CFLAGS='-fPIC -DPIC'
+CTARGET='-o $@'
+LDTARGET='-o $@'
+TEST_LD_MODE=
+EXTRA_LDFLAGS=
+ARFLAGS='crs'
+AROUT=' $@'
+CC_MM=1
+
+if test "x$je_cv_cray_prgenv_wrapper" = "xyes" ; then
+  TEST_LD_MODE='-dynamic'
+fi
+
+if test "x${je_cv_cray}" = "xyes" ; then
+  CC_MM=
+fi
+
+AN_MAKEVAR([AR], [AC_PROG_AR])
+AN_PROGRAM([ar], [AC_PROG_AR])
+AC_DEFUN([AC_PROG_AR], [AC_CHECK_TOOL(AR, ar, :)])
+AC_PROG_AR
+
+AN_MAKEVAR([NM], [AC_PROG_NM])
+AN_PROGRAM([nm], [AC_PROG_NM])
+AC_DEFUN([AC_PROG_NM], [AC_CHECK_TOOL(NM, nm, :)])
+AC_PROG_NM
+
+AC_PROG_AWK
+
+dnl ============================================================================
+dnl jemalloc version.
+dnl
+
+AC_ARG_WITH([version],
+  [AS_HELP_STRING([--with-version=<major>.<minor>.<bugfix>-<nrev>-g<gid>],
+   [Version string])],
+  [
+    echo "${with_version}" | grep ['^[0-9]\+\.[0-9]\+\.[0-9]\+-[0-9]\+-g[0-9a-f]\+$'] 2>&1 1>/dev/null
+    if test $? -eq 0 ; then
+      echo "$with_version" > "${objroot}VERSION"
+    else
+      echo "${with_version}" | grep ['^VERSION$'] 2>&1 1>/dev/null
+      if test $? -ne 0 ; then
+        AC_MSG_ERROR([${with_version} does not match <major>.<minor>.<bugfix>-<nrev>-g<gid> or VERSION])
+      fi
+    fi
+  ], [
+    dnl Set VERSION if source directory is inside a git repository.
+    if test "x`test ! \"${srcroot}\" && cd \"${srcroot}\"; git rev-parse --is-inside-work-tree 2>/dev/null`" = "xtrue" ; then
+      dnl Pattern globs aren't powerful enough to match both single- and
+      dnl double-digit version numbers, so iterate over patterns to support up
+      dnl to version 99.99.99 without any accidental matches.
+      for pattern in ['[0-9].[0-9].[0-9]' '[0-9].[0-9].[0-9][0-9]' \
+                     '[0-9].[0-9][0-9].[0-9]' '[0-9].[0-9][0-9].[0-9][0-9]' \
+                     '[0-9][0-9].[0-9].[0-9]' '[0-9][0-9].[0-9].[0-9][0-9]' \
+                     '[0-9][0-9].[0-9][0-9].[0-9]' \
+                     '[0-9][0-9].[0-9][0-9].[0-9][0-9]']; do
+        (test ! "${srcroot}" && cd "${srcroot}"; git describe --long --abbrev=40 --match="${pattern}") > "${objroot}VERSION.tmp" 2>/dev/null
+        if test $? -eq 0 ; then
+          mv "${objroot}VERSION.tmp" "${objroot}VERSION"
+          break
+        fi
+      done
+    fi
+    rm -f "${objroot}VERSION.tmp"
+  ])
+
+if test ! -e "${objroot}VERSION" ; then
+  if test ! -e "${srcroot}VERSION" ; then
+    AC_MSG_RESULT(
+      [Missing VERSION file, and unable to generate it; creating bogus VERSION])
+    echo "0.0.0-0-g0000000000000000000000000000000000000000" > "${objroot}VERSION"
+  else
+    cp ${srcroot}VERSION ${objroot}VERSION
+  fi
+fi
+jemalloc_version=`cat "${objroot}VERSION"`
+jemalloc_version_major=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]1}'`
+jemalloc_version_minor=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]2}'`
+jemalloc_version_bugfix=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]3}'`
+jemalloc_version_nrev=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]4}'`
+jemalloc_version_gid=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]5}'`
+AC_SUBST([jemalloc_version])
+AC_SUBST([jemalloc_version_major])
+AC_SUBST([jemalloc_version_minor])
+AC_SUBST([jemalloc_version_bugfix])
+AC_SUBST([jemalloc_version_nrev])
+AC_SUBST([jemalloc_version_gid])
+
+dnl Platform-specific settings.  abi and RPATH can probably be determined
+dnl programmatically, but doing so is error-prone, which makes it generally
+dnl not worth the trouble.
+dnl
+dnl Define cpp macros in CPPFLAGS, rather than doing AC_DEFINE(macro), since the
+dnl definitions need to be seen before any headers are included, which is a pain
+dnl to make happen otherwise.
+default_retain="0"
+maps_coalesce="1"
+DUMP_SYMS="${NM} -a"
+SYM_PREFIX=""
+case "${host}" in
+  *-*-darwin* | *-*-ios*)
+	abi="macho"
+	RPATH=""
+	LD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES"
+	so="dylib"
+	importlib="${so}"
+	force_tls="0"
+	DSO_LDFLAGS='-shared -Wl,-install_name,$(LIBDIR)/$(@F)'
+	SOREV="${rev}.${so}"
+	sbrk_deprecated="1"
+	SYM_PREFIX="_"
+	;;
+  *-*-freebsd*)
+	abi="elf"
+	AC_DEFINE([JEMALLOC_SYSCTL_VM_OVERCOMMIT], [ ])
+	force_lazy_lock="1"
+	;;
+  *-*-dragonfly*)
+	abi="elf"
+	;;
+  *-*-openbsd*)
+	abi="elf"
+	force_tls="0"
+	;;
+  *-*-bitrig*)
+	abi="elf"
+	;;
+  *-*-linux-android)
+	dnl syscall(2) and secure_getenv(3) are exposed by _GNU_SOURCE.
+	JE_APPEND_VS(CPPFLAGS, -D_GNU_SOURCE)
+	abi="elf"
+	AC_DEFINE([JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS], [ ])
+	AC_DEFINE([JEMALLOC_HAS_ALLOCA_H])
+	AC_DEFINE([JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY], [ ])
+	AC_DEFINE([JEMALLOC_THREADED_INIT], [ ])
+	AC_DEFINE([JEMALLOC_C11_ATOMICS])
+	force_tls="0"
+	if test "${LG_SIZEOF_PTR}" = "3"; then
+	  default_retain="1"
+	fi
+	;;
+  *-*-linux*)
+	dnl syscall(2) and secure_getenv(3) are exposed by _GNU_SOURCE.
+	JE_APPEND_VS(CPPFLAGS, -D_GNU_SOURCE)
+	abi="elf"
+	AC_DEFINE([JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS], [ ])
+	AC_DEFINE([JEMALLOC_HAS_ALLOCA_H])
+	AC_DEFINE([JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY], [ ])
+	AC_DEFINE([JEMALLOC_THREADED_INIT], [ ])
+	AC_DEFINE([JEMALLOC_USE_CXX_THROW], [ ])
+	if test "${LG_SIZEOF_PTR}" = "3"; then
+	  default_retain="1"
+	fi
+	;;
+  *-*-kfreebsd*)
+	dnl syscall(2) and secure_getenv(3) are exposed by _GNU_SOURCE.
+	JE_APPEND_VS(CPPFLAGS, -D_GNU_SOURCE)
+	abi="elf"
+	AC_DEFINE([JEMALLOC_HAS_ALLOCA_H])
+	AC_DEFINE([JEMALLOC_SYSCTL_VM_OVERCOMMIT], [ ])
+	AC_DEFINE([JEMALLOC_THREADED_INIT], [ ])
+	AC_DEFINE([JEMALLOC_USE_CXX_THROW], [ ])
+	;;
+  *-*-netbsd*)
+	AC_MSG_CHECKING([ABI])
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[#ifdef __ELF__
+/* ELF */
+#else
+#error aout
+#endif
+]])],
+                          [abi="elf"],
+                          [abi="aout"])
+	AC_MSG_RESULT([$abi])
+	;;
+  *-*-solaris2*)
+	abi="elf"
+	RPATH='-Wl,-R,$(1)'
+	dnl Solaris needs this for sigwait().
+	JE_APPEND_VS(CPPFLAGS, -D_POSIX_PTHREAD_SEMANTICS)
+	JE_APPEND_VS(LIBS, -lposix4 -lsocket -lnsl)
+	;;
+  *-ibm-aix*)
+	if test "${LG_SIZEOF_PTR}" = "3"; then
+	  dnl 64bit AIX
+	  LD_PRELOAD_VAR="LDR_PRELOAD64"
+	else
+	  dnl 32bit AIX
+	  LD_PRELOAD_VAR="LDR_PRELOAD"
+	fi
+	abi="xcoff"
+	;;
+  *-*-mingw* | *-*-cygwin*)
+	abi="pecoff"
+	force_tls="0"
+	maps_coalesce="0"
+	RPATH=""
+	so="dll"
+	if test "x$je_cv_msvc" = "xyes" ; then
+	  importlib="lib"
+	  DSO_LDFLAGS="-LD"
+	  EXTRA_LDFLAGS="-link -DEBUG"
+	  CTARGET='-Fo$@'
+	  LDTARGET='-Fe$@'
+	  AR='lib'
+	  ARFLAGS='-nologo -out:'
+	  AROUT='$@'
+	  CC_MM=
+        else
+	  importlib="${so}"
+	  DSO_LDFLAGS="-shared"
+	  link_whole_archive="1"
+	fi
+	case "${host}" in
+	  *-*-cygwin*)
+	    DUMP_SYMS="dumpbin /SYMBOLS"
+	    ;;
+	  *)
+	    ;;
+	esac
+	a="lib"
+	libprefix=""
+	SOREV="${so}"
+	PIC_CFLAGS=""
+	if test "${LG_SIZEOF_PTR}" = "3"; then
+	  default_retain="1"
+	fi
+	;;
+  *)
+	AC_MSG_RESULT([Unsupported operating system: ${host}])
+	abi="elf"
+	;;
+esac
+
+JEMALLOC_USABLE_SIZE_CONST=const
+AC_CHECK_HEADERS([malloc.h], [
+  AC_MSG_CHECKING([whether malloc_usable_size definition can use const argument])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+    [#include <malloc.h>
+     #include <stddef.h>
+    size_t malloc_usable_size(const void *ptr);
+    ],
+    [])],[
+                AC_MSG_RESULT([yes])
+         ],[
+                JEMALLOC_USABLE_SIZE_CONST=
+                AC_MSG_RESULT([no])
+         ])
+])
+AC_DEFINE_UNQUOTED([JEMALLOC_USABLE_SIZE_CONST], [$JEMALLOC_USABLE_SIZE_CONST])
+AC_SUBST([abi])
+AC_SUBST([RPATH])
+AC_SUBST([LD_PRELOAD_VAR])
+AC_SUBST([so])
+AC_SUBST([importlib])
+AC_SUBST([o])
+AC_SUBST([a])
+AC_SUBST([exe])
+AC_SUBST([libprefix])
+AC_SUBST([link_whole_archive])
+AC_SUBST([DSO_LDFLAGS])
+AC_SUBST([EXTRA_LDFLAGS])
+AC_SUBST([SOREV])
+AC_SUBST([PIC_CFLAGS])
+AC_SUBST([CTARGET])
+AC_SUBST([LDTARGET])
+AC_SUBST([TEST_LD_MODE])
+AC_SUBST([MKLIB])
+AC_SUBST([ARFLAGS])
+AC_SUBST([AROUT])
+AC_SUBST([DUMP_SYMS])
+AC_SUBST([CC_MM])
+
+dnl Determine whether libm must be linked to use e.g. log(3).
+AC_SEARCH_LIBS([log], [m], , [AC_MSG_ERROR([Missing math functions])])
+if test "x$ac_cv_search_log" != "xnone required" ; then
+  LM="$ac_cv_search_log"
+else
+  LM=
+fi
+AC_SUBST(LM)
+
+JE_COMPILABLE([__attribute__ syntax],
+              [static __attribute__((unused)) void foo(void){}],
+              [],
+              [je_cv_attribute])
+if test "x${je_cv_attribute}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_ATTR], [ ])
+  if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then
+    JE_CFLAGS_ADD([-fvisibility=hidden])
+    JE_CXXFLAGS_ADD([-fvisibility=hidden])
+  fi
+fi
+dnl Check for tls_model attribute support (clang 3.0 still lacks support).
+JE_CFLAGS_SAVE()
+JE_CFLAGS_ADD([-Werror])
+JE_CFLAGS_ADD([-herror_on_warning])
+JE_COMPILABLE([tls_model attribute], [],
+              [static __thread int
+               __attribute__((tls_model("initial-exec"), unused)) foo;
+               foo = 0;],
+              [je_cv_tls_model])
+JE_CFLAGS_RESTORE()
+dnl (Setting of JEMALLOC_TLS_MODEL is done later, after we've checked for
+dnl --disable-initial-exec-tls)
+
+dnl Check for alloc_size attribute support.
+JE_CFLAGS_SAVE()
+JE_CFLAGS_ADD([-Werror])
+JE_CFLAGS_ADD([-herror_on_warning])
+JE_COMPILABLE([alloc_size attribute], [#include <stdlib.h>],
+              [void *foo(size_t size) __attribute__((alloc_size(1)));],
+              [je_cv_alloc_size])
+JE_CFLAGS_RESTORE()
+if test "x${je_cv_alloc_size}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_ATTR_ALLOC_SIZE], [ ])
+fi
+dnl Check for format(gnu_printf, ...) attribute support.
+JE_CFLAGS_SAVE()
+JE_CFLAGS_ADD([-Werror])
+JE_CFLAGS_ADD([-herror_on_warning])
+JE_COMPILABLE([format(gnu_printf, ...) attribute], [#include <stdlib.h>],
+              [void *foo(const char *format, ...) __attribute__((format(gnu_printf, 1, 2)));],
+              [je_cv_format_gnu_printf])
+JE_CFLAGS_RESTORE()
+if test "x${je_cv_format_gnu_printf}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF], [ ])
+fi
+dnl Check for format(printf, ...) attribute support.
+JE_CFLAGS_SAVE()
+JE_CFLAGS_ADD([-Werror])
+JE_CFLAGS_ADD([-herror_on_warning])
+JE_COMPILABLE([format(printf, ...) attribute], [#include <stdlib.h>],
+              [void *foo(const char *format, ...) __attribute__((format(printf, 1, 2)));],
+              [je_cv_format_printf])
+JE_CFLAGS_RESTORE()
+if test "x${je_cv_format_printf}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_ATTR_FORMAT_PRINTF], [ ])
+fi
+
+dnl Check for format_arg(...) attribute support.
+JE_CFLAGS_SAVE()
+JE_CFLAGS_ADD([-Werror])
+JE_CFLAGS_ADD([-herror_on_warning])
+JE_COMPILABLE([format(printf, ...) attribute], [#include <stdlib.h>],
+              [const char * __attribute__((__format_arg__(1))) foo(const char *format);],
+              [je_cv_format_arg])
+JE_CFLAGS_RESTORE()
+if test "x${je_cv_format_arg}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_ATTR_FORMAT_ARG], [ ])
+fi
+
+dnl Support optional additions to rpath.
+AC_ARG_WITH([rpath],
+  [AS_HELP_STRING([--with-rpath=<rpath>], [Colon-separated rpath (ELF systems only)])],
+if test "x$with_rpath" = "xno" ; then
+  RPATH_EXTRA=
+else
+  RPATH_EXTRA="`echo $with_rpath | tr \":\" \" \"`"
+fi,
+  RPATH_EXTRA=
+)
+AC_SUBST([RPATH_EXTRA])
+
+dnl Disable rules that do automatic regeneration of configure output by default.
+AC_ARG_ENABLE([autogen],
+  [AS_HELP_STRING([--enable-autogen], [Automatically regenerate configure output])],
+if test "x$enable_autogen" = "xno" ; then
+  enable_autogen="0"
+else
+  enable_autogen="1"
+fi
+,
+enable_autogen="0"
+)
+AC_SUBST([enable_autogen])
+
+AC_PROG_INSTALL
+AC_PROG_RANLIB
+AC_PATH_PROG([LD], [ld], [false], [$PATH])
+AC_PATH_PROG([AUTOCONF], [autoconf], [false], [$PATH])
+
+dnl Enable documentation
+AC_ARG_ENABLE([doc],
+	      [AS_HELP_STRING([--enable-documentation], [Build documentation])],
+if test "x$enable_doc" = "xno" ; then
+  enable_doc="0"
+else
+  enable_doc="1"
+fi
+,
+enable_doc="1"
+)
+AC_SUBST([enable_doc])
+
+dnl Enable shared libs
+AC_ARG_ENABLE([shared],
+  [AS_HELP_STRING([--enable-shared], [Build shared libaries])],
+if test "x$enable_shared" = "xno" ; then
+  enable_shared="0"
+else
+  enable_shared="1"
+fi
+,
+enable_shared="1"
+)
+AC_SUBST([enable_shared])
+
+dnl Enable static libs
+AC_ARG_ENABLE([static],
+  [AS_HELP_STRING([--enable-static], [Build static libaries])],
+if test "x$enable_static" = "xno" ; then
+  enable_static="0"
+else
+  enable_static="1"
+fi
+,
+enable_static="1"
+)
+AC_SUBST([enable_static])
+
+if test "$enable_shared$enable_static" = "00" ; then
+  AC_MSG_ERROR([Please enable one of shared or static builds])
+fi
+
+dnl Perform no name mangling by default.
+AC_ARG_WITH([mangling],
+  [AS_HELP_STRING([--with-mangling=<map>], [Mangle symbols in <map>])],
+  [mangling_map="$with_mangling"], [mangling_map=""])
+
+dnl Do not prefix public APIs by default.
+AC_ARG_WITH([jemalloc_prefix],
+  [AS_HELP_STRING([--with-jemalloc-prefix=<prefix>], [Prefix to prepend to all public APIs])],
+  [JEMALLOC_PREFIX="$with_jemalloc_prefix"],
+  [if test "x$abi" != "xmacho" -a "x$abi" != "xpecoff"; then
+  JEMALLOC_PREFIX=""
+else
+  JEMALLOC_PREFIX="je_"
+fi]
+)
+if test "x$JEMALLOC_PREFIX" = "x" ; then
+  AC_DEFINE([JEMALLOC_IS_MALLOC])
+else
+  JEMALLOC_CPREFIX=`echo ${JEMALLOC_PREFIX} | tr "a-z" "A-Z"`
+  AC_DEFINE_UNQUOTED([JEMALLOC_PREFIX], ["$JEMALLOC_PREFIX"])
+  AC_DEFINE_UNQUOTED([JEMALLOC_CPREFIX], ["$JEMALLOC_CPREFIX"])
+fi
+AC_SUBST([JEMALLOC_PREFIX])
+AC_SUBST([JEMALLOC_CPREFIX])
+
+AC_ARG_WITH([export],
+  [AS_HELP_STRING([--without-export], [disable exporting jemalloc public APIs])],
+  [if test "x$with_export" = "xno"; then
+  AC_DEFINE([JEMALLOC_EXPORT],[])
+fi]
+)
+
+public_syms="aligned_alloc calloc dallocx free mallctl mallctlbymib mallctlnametomib malloc malloc_conf malloc_message malloc_stats_print malloc_usable_size mallocx smallocx_${jemalloc_version_gid} nallocx posix_memalign rallocx realloc sallocx sdallocx xallocx"
+dnl Check for additional platform-specific public API functions.
+AC_CHECK_FUNC([memalign],
+	      [AC_DEFINE([JEMALLOC_OVERRIDE_MEMALIGN], [ ])
+	       public_syms="${public_syms} memalign"])
+AC_CHECK_FUNC([valloc],
+	      [AC_DEFINE([JEMALLOC_OVERRIDE_VALLOC], [ ])
+	       public_syms="${public_syms} valloc"])
+
+dnl Check for allocator-related functions that should be wrapped.
+wrap_syms=
+if test "x${JEMALLOC_PREFIX}" = "x" ; then
+  AC_CHECK_FUNC([__libc_calloc],
+		[AC_DEFINE([JEMALLOC_OVERRIDE___LIBC_CALLOC], [ ])
+		 wrap_syms="${wrap_syms} __libc_calloc"])
+  AC_CHECK_FUNC([__libc_free],
+		[AC_DEFINE([JEMALLOC_OVERRIDE___LIBC_FREE], [ ])
+		 wrap_syms="${wrap_syms} __libc_free"])
+  AC_CHECK_FUNC([__libc_malloc],
+		[AC_DEFINE([JEMALLOC_OVERRIDE___LIBC_MALLOC], [ ])
+		 wrap_syms="${wrap_syms} __libc_malloc"])
+  AC_CHECK_FUNC([__libc_memalign],
+		[AC_DEFINE([JEMALLOC_OVERRIDE___LIBC_MEMALIGN], [ ])
+		 wrap_syms="${wrap_syms} __libc_memalign"])
+  AC_CHECK_FUNC([__libc_realloc],
+		[AC_DEFINE([JEMALLOC_OVERRIDE___LIBC_REALLOC], [ ])
+		 wrap_syms="${wrap_syms} __libc_realloc"])
+  AC_CHECK_FUNC([__libc_valloc],
+		[AC_DEFINE([JEMALLOC_OVERRIDE___LIBC_VALLOC], [ ])
+		 wrap_syms="${wrap_syms} __libc_valloc"])
+  AC_CHECK_FUNC([__posix_memalign],
+		[AC_DEFINE([JEMALLOC_OVERRIDE___POSIX_MEMALIGN], [ ])
+		 wrap_syms="${wrap_syms} __posix_memalign"])
+fi
+
+case "${host}" in
+  *-*-mingw* | *-*-cygwin*)
+    wrap_syms="${wrap_syms} tls_callback"
+    ;;
+  *)
+    ;;
+esac
+
+dnl Mangle library-private APIs.
+AC_ARG_WITH([private_namespace],
+  [AS_HELP_STRING([--with-private-namespace=<prefix>], [Prefix to prepend to all library-private APIs])],
+  [JEMALLOC_PRIVATE_NAMESPACE="${with_private_namespace}je_"],
+  [JEMALLOC_PRIVATE_NAMESPACE="je_"]
+)
+AC_DEFINE_UNQUOTED([JEMALLOC_PRIVATE_NAMESPACE], [$JEMALLOC_PRIVATE_NAMESPACE])
+private_namespace="$JEMALLOC_PRIVATE_NAMESPACE"
+AC_SUBST([private_namespace])
+
+dnl Do not add suffix to installed files by default.
+AC_ARG_WITH([install_suffix],
+  [AS_HELP_STRING([--with-install-suffix=<suffix>], [Suffix to append to all installed files])],
+  [INSTALL_SUFFIX="$with_install_suffix"],
+  [INSTALL_SUFFIX=]
+)
+install_suffix="$INSTALL_SUFFIX"
+AC_SUBST([install_suffix])
+
+dnl Specify default malloc_conf.
+AC_ARG_WITH([malloc_conf],
+  [AS_HELP_STRING([--with-malloc-conf=<malloc_conf>], [config.malloc_conf options string])],
+  [JEMALLOC_CONFIG_MALLOC_CONF="$with_malloc_conf"],
+  [JEMALLOC_CONFIG_MALLOC_CONF=""]
+)
+config_malloc_conf="$JEMALLOC_CONFIG_MALLOC_CONF"
+AC_DEFINE_UNQUOTED([JEMALLOC_CONFIG_MALLOC_CONF], ["$config_malloc_conf"])
+
+dnl Substitute @je_@ in jemalloc_protos.h.in, primarily to make generation of
+dnl jemalloc_protos_jet.h easy.
+je_="je_"
+AC_SUBST([je_])
+
+cfgoutputs_in="Makefile.in"
+cfgoutputs_in="${cfgoutputs_in} jemalloc.pc.in"
+cfgoutputs_in="${cfgoutputs_in} doc/html.xsl.in"
+cfgoutputs_in="${cfgoutputs_in} doc/manpages.xsl.in"
+cfgoutputs_in="${cfgoutputs_in} doc/jemalloc.xml.in"
+cfgoutputs_in="${cfgoutputs_in} include/jemalloc/jemalloc_macros.h.in"
+cfgoutputs_in="${cfgoutputs_in} include/jemalloc/jemalloc_protos.h.in"
+cfgoutputs_in="${cfgoutputs_in} include/jemalloc/jemalloc_typedefs.h.in"
+cfgoutputs_in="${cfgoutputs_in} include/jemalloc/internal/jemalloc_preamble.h.in"
+cfgoutputs_in="${cfgoutputs_in} test/test.sh.in"
+cfgoutputs_in="${cfgoutputs_in} test/include/test/jemalloc_test.h.in"
+
+cfgoutputs_out="Makefile"
+cfgoutputs_out="${cfgoutputs_out} jemalloc.pc"
+cfgoutputs_out="${cfgoutputs_out} doc/html.xsl"
+cfgoutputs_out="${cfgoutputs_out} doc/manpages.xsl"
+cfgoutputs_out="${cfgoutputs_out} doc/jemalloc.xml"
+cfgoutputs_out="${cfgoutputs_out} include/jemalloc/jemalloc_macros.h"
+cfgoutputs_out="${cfgoutputs_out} include/jemalloc/jemalloc_protos.h"
+cfgoutputs_out="${cfgoutputs_out} include/jemalloc/jemalloc_typedefs.h"
+cfgoutputs_out="${cfgoutputs_out} include/jemalloc/internal/jemalloc_preamble.h"
+cfgoutputs_out="${cfgoutputs_out} test/test.sh"
+cfgoutputs_out="${cfgoutputs_out} test/include/test/jemalloc_test.h"
+
+cfgoutputs_tup="Makefile"
+cfgoutputs_tup="${cfgoutputs_tup} jemalloc.pc:jemalloc.pc.in"
+cfgoutputs_tup="${cfgoutputs_tup} doc/html.xsl:doc/html.xsl.in"
+cfgoutputs_tup="${cfgoutputs_tup} doc/manpages.xsl:doc/manpages.xsl.in"
+cfgoutputs_tup="${cfgoutputs_tup} doc/jemalloc.xml:doc/jemalloc.xml.in"
+cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/jemalloc_macros.h:include/jemalloc/jemalloc_macros.h.in"
+cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/jemalloc_protos.h:include/jemalloc/jemalloc_protos.h.in"
+cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/jemalloc_typedefs.h:include/jemalloc/jemalloc_typedefs.h.in"
+cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/internal/jemalloc_preamble.h"
+cfgoutputs_tup="${cfgoutputs_tup} test/test.sh:test/test.sh.in"
+cfgoutputs_tup="${cfgoutputs_tup} test/include/test/jemalloc_test.h:test/include/test/jemalloc_test.h.in"
+
+cfghdrs_in="include/jemalloc/jemalloc_defs.h.in"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/internal/jemalloc_internal_defs.h.in"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/internal/private_symbols.sh"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/internal/private_namespace.sh"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/internal/public_namespace.sh"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/internal/public_unnamespace.sh"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/jemalloc_rename.sh"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/jemalloc_mangle.sh"
+cfghdrs_in="${cfghdrs_in} include/jemalloc/jemalloc.sh"
+cfghdrs_in="${cfghdrs_in} test/include/test/jemalloc_test_defs.h.in"
+
+cfghdrs_out="include/jemalloc/jemalloc_defs.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/jemalloc${install_suffix}.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/private_symbols.awk"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/private_symbols_jet.awk"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/public_symbols.txt"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/public_namespace.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/public_unnamespace.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/jemalloc_protos_jet.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/jemalloc_rename.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/jemalloc_mangle.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/jemalloc_mangle_jet.h"
+cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/jemalloc_internal_defs.h"
+cfghdrs_out="${cfghdrs_out} test/include/test/jemalloc_test_defs.h"
+
+cfghdrs_tup="include/jemalloc/jemalloc_defs.h:include/jemalloc/jemalloc_defs.h.in"
+cfghdrs_tup="${cfghdrs_tup} include/jemalloc/internal/jemalloc_internal_defs.h:include/jemalloc/internal/jemalloc_internal_defs.h.in"
+cfghdrs_tup="${cfghdrs_tup} test/include/test/jemalloc_test_defs.h:test/include/test/jemalloc_test_defs.h.in"
+
+dnl ============================================================================
+dnl jemalloc build options.
+dnl
+
+dnl Do not compile with debugging by default.
+AC_ARG_ENABLE([debug],
+  [AS_HELP_STRING([--enable-debug],
+                  [Build debugging code])],
+[if test "x$enable_debug" = "xno" ; then
+  enable_debug="0"
+else
+  enable_debug="1"
+fi
+],
+[enable_debug="0"]
+)
+if test "x$enable_debug" = "x1" ; then
+  AC_DEFINE([JEMALLOC_DEBUG], [ ])
+fi
+if test "x$enable_debug" = "x1" ; then
+  AC_DEFINE([JEMALLOC_DEBUG], [ ])
+fi
+AC_SUBST([enable_debug])
+
+dnl Only optimize if not debugging.
+if test "x$enable_debug" = "x0" ; then
+  if test "x$GCC" = "xyes" ; then
+    JE_CFLAGS_ADD([-O3])
+    JE_CXXFLAGS_ADD([-O3])
+    JE_CFLAGS_ADD([-funroll-loops])
+  elif test "x$je_cv_msvc" = "xyes" ; then
+    JE_CFLAGS_ADD([-O2])
+    JE_CXXFLAGS_ADD([-O2])
+  else
+    JE_CFLAGS_ADD([-O])
+    JE_CXXFLAGS_ADD([-O])
+  fi
+fi
+
+dnl Enable statistics calculation by default.
+AC_ARG_ENABLE([stats],
+  [AS_HELP_STRING([--disable-stats],
+                  [Disable statistics calculation/reporting])],
+[if test "x$enable_stats" = "xno" ; then
+  enable_stats="0"
+else
+  enable_stats="1"
+fi
+],
+[enable_stats="1"]
+)
+if test "x$enable_stats" = "x1" ; then
+  AC_DEFINE([JEMALLOC_STATS], [ ])
+fi
+AC_SUBST([enable_stats])
+
+dnl Do not enable smallocx by default.
+AC_ARG_ENABLE([experimental_smallocx],
+  [AS_HELP_STRING([--enable-experimental-smallocx], [Enable experimental smallocx API])],
+[if test "x$enable_experimental_smallocx" = "xno" ; then
+enable_experimental_smallocx="0"
+else
+enable_experimental_smallocx="1"
+fi
+],
+[enable_experimental_smallocx="0"]
+)
+if test "x$enable_experimental_smallocx" = "x1" ; then
+  AC_DEFINE([JEMALLOC_EXPERIMENTAL_SMALLOCX_API])
+fi
+AC_SUBST([enable_experimental_smallocx])
+
+dnl Do not enable profiling by default.
+AC_ARG_ENABLE([prof],
+  [AS_HELP_STRING([--enable-prof], [Enable allocation profiling])],
+[if test "x$enable_prof" = "xno" ; then
+  enable_prof="0"
+else
+  enable_prof="1"
+fi
+],
+[enable_prof="0"]
+)
+if test "x$enable_prof" = "x1" ; then
+  backtrace_method=""
+else
+  backtrace_method="N/A"
+fi
+
+AC_ARG_ENABLE([prof-libunwind],
+  [AS_HELP_STRING([--enable-prof-libunwind], [Use libunwind for backtracing])],
+[if test "x$enable_prof_libunwind" = "xno" ; then
+  enable_prof_libunwind="0"
+else
+  enable_prof_libunwind="1"
+fi
+],
+[enable_prof_libunwind="0"]
+)
+AC_ARG_WITH([static_libunwind],
+  [AS_HELP_STRING([--with-static-libunwind=<libunwind.a>],
+  [Path to static libunwind library; use rather than dynamically linking])],
+if test "x$with_static_libunwind" = "xno" ; then
+  LUNWIND="-lunwind"
+else
+  if test ! -f "$with_static_libunwind" ; then
+    AC_MSG_ERROR([Static libunwind not found: $with_static_libunwind])
+  fi
+  LUNWIND="$with_static_libunwind"
+fi,
+  LUNWIND="-lunwind"
+)
+if test "x$backtrace_method" = "x" -a "x$enable_prof_libunwind" = "x1" ; then
+  AC_CHECK_HEADERS([libunwind.h], , [enable_prof_libunwind="0"])
+  if test "x$LUNWIND" = "x-lunwind" ; then
+    AC_CHECK_LIB([unwind], [unw_backtrace], [JE_APPEND_VS(LIBS, $LUNWIND)],
+                 [enable_prof_libunwind="0"])
+  else
+    JE_APPEND_VS(LIBS, $LUNWIND)
+  fi
+  if test "x${enable_prof_libunwind}" = "x1" ; then
+    backtrace_method="libunwind"
+    AC_DEFINE([JEMALLOC_PROF_LIBUNWIND], [ ])
+  fi
+fi
+
+AC_ARG_ENABLE([prof-libgcc],
+  [AS_HELP_STRING([--disable-prof-libgcc],
+  [Do not use libgcc for backtracing])],
+[if test "x$enable_prof_libgcc" = "xno" ; then
+  enable_prof_libgcc="0"
+else
+  enable_prof_libgcc="1"
+fi
+],
+[enable_prof_libgcc="1"]
+)
+if test "x$backtrace_method" = "x" -a "x$enable_prof_libgcc" = "x1" \
+     -a "x$GCC" = "xyes" ; then
+  AC_CHECK_HEADERS([unwind.h], , [enable_prof_libgcc="0"])
+  if test "x${enable_prof_libgcc}" = "x1" ; then
+    AC_CHECK_LIB([gcc], [_Unwind_Backtrace], [JE_APPEND_VS(LIBS, -lgcc)], [enable_prof_libgcc="0"])
+  fi
+  if test "x${enable_prof_libgcc}" = "x1" ; then
+    backtrace_method="libgcc"
+    AC_DEFINE([JEMALLOC_PROF_LIBGCC], [ ])
+  fi
+else
+  enable_prof_libgcc="0"
+fi
+
+AC_ARG_ENABLE([prof-gcc],
+  [AS_HELP_STRING([--disable-prof-gcc],
+  [Do not use gcc intrinsics for backtracing])],
+[if test "x$enable_prof_gcc" = "xno" ; then
+  enable_prof_gcc="0"
+else
+  enable_prof_gcc="1"
+fi
+],
+[enable_prof_gcc="1"]
+)
+if test "x$backtrace_method" = "x" -a "x$enable_prof_gcc" = "x1" \
+     -a "x$GCC" = "xyes" ; then
+  JE_CFLAGS_ADD([-fno-omit-frame-pointer])
+  backtrace_method="gcc intrinsics"
+  AC_DEFINE([JEMALLOC_PROF_GCC], [ ])
+else
+  enable_prof_gcc="0"
+fi
+
+if test "x$backtrace_method" = "x" ; then
+  backtrace_method="none (disabling profiling)"
+  enable_prof="0"
+fi
+AC_MSG_CHECKING([configured backtracing method])
+AC_MSG_RESULT([$backtrace_method])
+if test "x$enable_prof" = "x1" ; then
+  dnl Heap profiling uses the log(3) function.
+  JE_APPEND_VS(LIBS, $LM)
+
+  AC_DEFINE([JEMALLOC_PROF], [ ])
+fi
+AC_SUBST([enable_prof])
+
+dnl Indicate whether adjacent virtual memory mappings automatically coalesce
+dnl (and fragment on demand).
+if test "x${maps_coalesce}" = "x1" ; then
+  AC_DEFINE([JEMALLOC_MAPS_COALESCE], [ ])
+fi
+
+dnl Indicate whether to retain memory (rather than using munmap()) by default.
+if test "x$default_retain" = "x1" ; then
+  AC_DEFINE([JEMALLOC_RETAIN], [ ])
+fi
+
+dnl Enable allocation from DSS if supported by the OS.
+have_dss="1"
+dnl Check whether the BSD/SUSv1 sbrk() exists.  If not, disable DSS support.
+AC_CHECK_FUNC([sbrk], [have_sbrk="1"], [have_sbrk="0"])
+if test "x$have_sbrk" = "x1" ; then
+  if test "x$sbrk_deprecated" = "x1" ; then
+    AC_MSG_RESULT([Disabling dss allocation because sbrk is deprecated])
+    have_dss="0"
+  fi
+else
+  have_dss="0"
+fi
+
+if test "x$have_dss" = "x1" ; then
+  AC_DEFINE([JEMALLOC_DSS], [ ])
+fi
+
+dnl Support the junk/zero filling option by default.
+AC_ARG_ENABLE([fill],
+  [AS_HELP_STRING([--disable-fill], [Disable support for junk/zero filling])],
+[if test "x$enable_fill" = "xno" ; then
+  enable_fill="0"
+else
+  enable_fill="1"
+fi
+],
+[enable_fill="1"]
+)
+if test "x$enable_fill" = "x1" ; then
+  AC_DEFINE([JEMALLOC_FILL], [ ])
+fi
+AC_SUBST([enable_fill])
+
+dnl Disable utrace(2)-based tracing by default.
+AC_ARG_ENABLE([utrace],
+  [AS_HELP_STRING([--enable-utrace], [Enable utrace(2)-based tracing])],
+[if test "x$enable_utrace" = "xno" ; then
+  enable_utrace="0"
+else
+  enable_utrace="1"
+fi
+],
+[enable_utrace="0"]
+)
+JE_COMPILABLE([utrace(2)], [
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <sys/ktrace.h>
+], [
+	utrace((void *)0, 0);
+], [je_cv_utrace])
+if test "x${je_cv_utrace}" = "xno" ; then
+  enable_utrace="0"
+fi
+if test "x$enable_utrace" = "x1" ; then
+  AC_DEFINE([JEMALLOC_UTRACE], [ ])
+fi
+AC_SUBST([enable_utrace])
+
+dnl Do not support the xmalloc option by default.
+AC_ARG_ENABLE([xmalloc],
+  [AS_HELP_STRING([--enable-xmalloc], [Support xmalloc option])],
+[if test "x$enable_xmalloc" = "xno" ; then
+  enable_xmalloc="0"
+else
+  enable_xmalloc="1"
+fi
+],
+[enable_xmalloc="0"]
+)
+if test "x$enable_xmalloc" = "x1" ; then
+  AC_DEFINE([JEMALLOC_XMALLOC], [ ])
+fi
+AC_SUBST([enable_xmalloc])
+
+dnl Support cache-oblivious allocation alignment by default.
+AC_ARG_ENABLE([cache-oblivious],
+  [AS_HELP_STRING([--disable-cache-oblivious],
+                  [Disable support for cache-oblivious allocation alignment])],
+[if test "x$enable_cache_oblivious" = "xno" ; then
+  enable_cache_oblivious="0"
+else
+  enable_cache_oblivious="1"
+fi
+],
+[enable_cache_oblivious="1"]
+)
+if test "x$enable_cache_oblivious" = "x1" ; then
+  AC_DEFINE([JEMALLOC_CACHE_OBLIVIOUS], [ ])
+fi
+AC_SUBST([enable_cache_oblivious])
+
+dnl Do not log by default.
+AC_ARG_ENABLE([log],
+  [AS_HELP_STRING([--enable-log], [Support debug logging])],
+[if test "x$enable_log" = "xno" ; then
+  enable_log="0"
+else
+  enable_log="1"
+fi
+],
+[enable_log="0"]
+)
+if test "x$enable_log" = "x1" ; then
+  AC_DEFINE([JEMALLOC_LOG], [ ])
+fi
+AC_SUBST([enable_log])
+
+dnl Do not use readlinkat by default
+AC_ARG_ENABLE([readlinkat],
+  [AS_HELP_STRING([--enable-readlinkat], [Use readlinkat over readlink])],
+[if test "x$enable_readlinkat" = "xno" ; then
+  enable_readlinkat="0"
+else
+  enable_readlinkat="1"
+fi
+],
+[enable_readlinkat="0"]
+)
+if test "x$enable_readlinkat" = "x1" ; then
+  AC_DEFINE([JEMALLOC_READLINKAT], [ ])
+fi
+AC_SUBST([enable_readlinkat])
+
+dnl Avoid extra safety checks by default
+AC_ARG_ENABLE([opt-safety-checks],
+  [AS_HELP_STRING([--enable-opt-safety-checks],
+  [Perform certain low-overhead checks, even in opt mode])],
+[if test "x$enable_opt_safety_checks" = "xno" ; then
+  enable_opt_safety_checks="0"
+else
+  enable_opt_safety_checks="1"
+fi
+],
+[enable_opt_safety_checks="0"]
+)
+if test "x$enable_opt_safety_checks" = "x1" ; then
+  AC_DEFINE([JEMALLOC_OPT_SAFETY_CHECKS], [ ])
+fi
+AC_SUBST([enable_opt_safety_checks])
+
+JE_COMPILABLE([a program using __builtin_unreachable], [
+void foo (void) {
+  __builtin_unreachable();
+}
+], [
+	{
+		foo();
+	}
+], [je_cv_gcc_builtin_unreachable])
+if test "x${je_cv_gcc_builtin_unreachable}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_INTERNAL_UNREACHABLE], [__builtin_unreachable])
+else
+  AC_DEFINE([JEMALLOC_INTERNAL_UNREACHABLE], [abort])
+fi
+
+dnl ============================================================================
+dnl Check for  __builtin_ffsl(), then ffsl(3), and fail if neither are found.
+dnl One of those two functions should (theoretically) exist on all platforms
+dnl that jemalloc currently has a chance of functioning on without modification.
+dnl We additionally assume ffs[ll]() or __builtin_ffs[ll]() are defined if
+dnl ffsl() or __builtin_ffsl() are defined, respectively.
+JE_COMPILABLE([a program using __builtin_ffsl], [
+#include <stdio.h>
+#include <strings.h>
+#include <string.h>
+], [
+	{
+		int rv = __builtin_ffsl(0x08);
+		printf("%d\n", rv);
+	}
+], [je_cv_gcc_builtin_ffsl])
+if test "x${je_cv_gcc_builtin_ffsl}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_INTERNAL_FFSLL], [__builtin_ffsll])
+  AC_DEFINE([JEMALLOC_INTERNAL_FFSL], [__builtin_ffsl])
+  AC_DEFINE([JEMALLOC_INTERNAL_FFS], [__builtin_ffs])
+else
+  JE_COMPILABLE([a program using ffsl], [
+  #include <stdio.h>
+  #include <strings.h>
+  #include <string.h>
+  ], [
+	{
+		int rv = ffsl(0x08);
+		printf("%d\n", rv);
+	}
+  ], [je_cv_function_ffsl])
+  if test "x${je_cv_function_ffsl}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_INTERNAL_FFSLL], [ffsll])
+    AC_DEFINE([JEMALLOC_INTERNAL_FFSL], [ffsl])
+    AC_DEFINE([JEMALLOC_INTERNAL_FFS], [ffs])
+  else
+    AC_MSG_ERROR([Cannot build without ffsl(3) or __builtin_ffsl()])
+  fi
+fi
+
+JE_COMPILABLE([a program using __builtin_popcountl], [
+#include <stdio.h>
+#include <strings.h>
+#include <string.h>
+], [
+	{
+		int rv = __builtin_popcountl(0x08);
+		printf("%d\n", rv);
+	}
+], [je_cv_gcc_builtin_popcountl])
+if test "x${je_cv_gcc_builtin_popcountl}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_INTERNAL_POPCOUNT], [__builtin_popcount])
+  AC_DEFINE([JEMALLOC_INTERNAL_POPCOUNTL], [__builtin_popcountl])
+fi
+
+AC_ARG_WITH([lg_quantum],
+  [AS_HELP_STRING([--with-lg-quantum=<lg-quantum>],
+   [Base 2 log of minimum allocation alignment])],
+  [LG_QUANTA="$with_lg_quantum"],
+  [LG_QUANTA="3 4"])
+if test "x$with_lg_quantum" != "x" ; then
+  AC_DEFINE_UNQUOTED([LG_QUANTUM], [$with_lg_quantum])
+fi
+
+AC_ARG_WITH([lg_page],
+  [AS_HELP_STRING([--with-lg-page=<lg-page>], [Base 2 log of system page size])],
+  [LG_PAGE="$with_lg_page"], [LG_PAGE="detect"])
+if test "x$LG_PAGE" = "xdetect"; then
+  AC_CACHE_CHECK([LG_PAGE],
+               [je_cv_lg_page],
+               AC_RUN_IFELSE([AC_LANG_PROGRAM(
+[[
+#include <strings.h>
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <unistd.h>
+#endif
+#include <stdio.h>
+]],
+[[
+    int result;
+    FILE *f;
+
+#ifdef _WIN32
+    SYSTEM_INFO si;
+    GetSystemInfo(&si);
+    result = si.dwPageSize;
+#else
+    result = sysconf(_SC_PAGESIZE);
+#endif
+    if (result == -1) {
+	return 1;
+    }
+    result = JEMALLOC_INTERNAL_FFSL(result) - 1;
+
+    f = fopen("conftest.out", "w");
+    if (f == NULL) {
+	return 1;
+    }
+    fprintf(f, "%d", result);
+    fclose(f);
+
+    return 0;
+]])],
+                             [je_cv_lg_page=`cat conftest.out`],
+                             [je_cv_lg_page=undefined],
+                             [je_cv_lg_page=12]))
+fi
+if test "x${je_cv_lg_page}" != "x" ; then
+  LG_PAGE="${je_cv_lg_page}"
+fi
+if test "x${LG_PAGE}" != "xundefined" ; then
+   AC_DEFINE_UNQUOTED([LG_PAGE], [$LG_PAGE])
+else
+   AC_MSG_ERROR([cannot determine value for LG_PAGE])
+fi
+
+AC_ARG_WITH([lg_hugepage],
+  [AS_HELP_STRING([--with-lg-hugepage=<lg-hugepage>],
+   [Base 2 log of system huge page size])],
+  [je_cv_lg_hugepage="${with_lg_hugepage}"],
+  [je_cv_lg_hugepage=""])
+if test "x${je_cv_lg_hugepage}" = "x" ; then
+  dnl Look in /proc/meminfo (Linux-specific) for information on the default huge
+  dnl page size, if any.  The relevant line looks like:
+  dnl
+  dnl   Hugepagesize:       2048 kB
+  if test -e "/proc/meminfo" ; then
+    hpsk=[`cat /proc/meminfo 2>/dev/null | \
+          grep -e '^Hugepagesize:[[:space:]]\+[0-9]\+[[:space:]]kB$' | \
+          awk '{print $2}'`]
+    if test "x${hpsk}" != "x" ; then
+      je_cv_lg_hugepage=10
+      while test "${hpsk}" -gt 1 ; do
+        hpsk="$((hpsk / 2))"
+        je_cv_lg_hugepage="$((je_cv_lg_hugepage + 1))"
+      done
+    fi
+  fi
+
+  dnl Set default if unable to automatically configure.
+  if test "x${je_cv_lg_hugepage}" = "x" ; then
+    je_cv_lg_hugepage=21
+  fi
+fi
+if test "x${LG_PAGE}" != "xundefined" -a \
+        "${je_cv_lg_hugepage}" -lt "${LG_PAGE}" ; then
+  AC_MSG_ERROR([Huge page size (2^${je_cv_lg_hugepage}) must be at least page size (2^${LG_PAGE})])
+fi
+AC_DEFINE_UNQUOTED([LG_HUGEPAGE], [${je_cv_lg_hugepage}])
+
+dnl ============================================================================
+dnl Enable libdl by default.
+AC_ARG_ENABLE([libdl],
+  [AS_HELP_STRING([--disable-libdl],
+  [Do not use libdl])],
+[if test "x$enable_libdl" = "xno" ; then
+  enable_libdl="0"
+else
+  enable_libdl="1"
+fi
+],
+[enable_libdl="1"]
+)
+AC_SUBST([libdl])
+
+dnl ============================================================================
+dnl Configure pthreads.
+
+if test "x$abi" != "xpecoff" ; then
+  AC_DEFINE([JEMALLOC_HAVE_PTHREAD], [ ])
+  AC_CHECK_HEADERS([pthread.h], , [AC_MSG_ERROR([pthread.h is missing])])
+  dnl Some systems may embed pthreads functionality in libc; check for libpthread
+  dnl first, but try libc too before failing.
+  AC_CHECK_LIB([pthread], [pthread_create], [JE_APPEND_VS(LIBS, -pthread)],
+               [AC_SEARCH_LIBS([pthread_create], , ,
+                               AC_MSG_ERROR([libpthread is missing]))])
+  wrap_syms="${wrap_syms} pthread_create"
+  have_pthread="1"
+
+dnl Check if we have dlsym support.
+  if test "x$enable_libdl" = "x1" ; then
+    have_dlsym="1"
+    AC_CHECK_HEADERS([dlfcn.h],
+      AC_CHECK_FUNC([dlsym], [],
+        [AC_CHECK_LIB([dl], [dlsym], [LIBS="$LIBS -ldl"], [have_dlsym="0"])]),
+      [have_dlsym="0"])
+    if test "x$have_dlsym" = "x1" ; then
+      AC_DEFINE([JEMALLOC_HAVE_DLSYM], [ ])
+    fi
+  else
+    have_dlsym="0"
+  fi
+
+  JE_COMPILABLE([pthread_atfork(3)], [
+#include <pthread.h>
+], [
+  pthread_atfork((void *)0, (void *)0, (void *)0);
+], [je_cv_pthread_atfork])
+  if test "x${je_cv_pthread_atfork}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_HAVE_PTHREAD_ATFORK], [ ])
+  fi
+  dnl Check if pthread_setname_np is available with the expected API.
+  JE_COMPILABLE([pthread_setname_np(3)], [
+#include <pthread.h>
+], [
+  pthread_setname_np(pthread_self(), "setname_test");
+], [je_cv_pthread_setname_np])
+  if test "x${je_cv_pthread_setname_np}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_HAVE_PTHREAD_SETNAME_NP], [ ])
+  fi
+fi
+
+JE_APPEND_VS(CPPFLAGS, -D_REENTRANT)
+
+dnl Check whether clock_gettime(2) is in libc or librt.
+AC_SEARCH_LIBS([clock_gettime], [rt])
+
+dnl Cray wrapper compiler often adds `-lrt` when using `-static`. Check with
+dnl `-dynamic` as well in case a user tries to dynamically link in jemalloc
+if test "x$je_cv_cray_prgenv_wrapper" = "xyes" ; then
+  if test "$ac_cv_search_clock_gettime" != "-lrt"; then
+    JE_CFLAGS_SAVE()
+
+    unset ac_cv_search_clock_gettime
+    JE_CFLAGS_ADD([-dynamic])
+    AC_SEARCH_LIBS([clock_gettime], [rt])
+
+    JE_CFLAGS_RESTORE()
+  fi
+fi
+
+dnl check for CLOCK_MONOTONIC_COARSE (Linux-specific).
+JE_COMPILABLE([clock_gettime(CLOCK_MONOTONIC_COARSE, ...)], [
+#include <time.h>
+], [
+	struct timespec ts;
+
+	clock_gettime(CLOCK_MONOTONIC_COARSE, &ts);
+], [je_cv_clock_monotonic_coarse])
+if test "x${je_cv_clock_monotonic_coarse}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE])
+fi
+
+dnl check for CLOCK_MONOTONIC.
+JE_COMPILABLE([clock_gettime(CLOCK_MONOTONIC, ...)], [
+#include <unistd.h>
+#include <time.h>
+], [
+	struct timespec ts;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+#if !defined(_POSIX_MONOTONIC_CLOCK) || _POSIX_MONOTONIC_CLOCK < 0
+#  error _POSIX_MONOTONIC_CLOCK missing/invalid
+#endif
+], [je_cv_clock_monotonic])
+if test "x${je_cv_clock_monotonic}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_CLOCK_MONOTONIC])
+fi
+
+dnl Check for mach_absolute_time().
+JE_COMPILABLE([mach_absolute_time()], [
+#include <mach/mach_time.h>
+], [
+	mach_absolute_time();
+], [je_cv_mach_absolute_time])
+if test "x${je_cv_mach_absolute_time}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_MACH_ABSOLUTE_TIME])
+fi
+
+dnl Use syscall(2) (if available) by default.
+AC_ARG_ENABLE([syscall],
+  [AS_HELP_STRING([--disable-syscall], [Disable use of syscall(2)])],
+[if test "x$enable_syscall" = "xno" ; then
+  enable_syscall="0"
+else
+  enable_syscall="1"
+fi
+],
+[enable_syscall="1"]
+)
+if test "x$enable_syscall" = "x1" ; then
+  dnl Check if syscall(2) is usable.  Treat warnings as errors, so that e.g. OS
+  dnl X 10.12's deprecation warning prevents use.
+  JE_CFLAGS_SAVE()
+  JE_CFLAGS_ADD([-Werror])
+  JE_COMPILABLE([syscall(2)], [
+#include <sys/syscall.h>
+#include <unistd.h>
+], [
+	syscall(SYS_write, 2, "hello", 5);
+],
+                [je_cv_syscall])
+  JE_CFLAGS_RESTORE()
+  if test "x$je_cv_syscall" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_USE_SYSCALL], [ ])
+  fi
+fi
+
+dnl Check if the GNU-specific secure_getenv function exists.
+AC_CHECK_FUNC([secure_getenv],
+              [have_secure_getenv="1"],
+              [have_secure_getenv="0"]
+             )
+if test "x$have_secure_getenv" = "x1" ; then
+  AC_DEFINE([JEMALLOC_HAVE_SECURE_GETENV], [ ])
+fi
+
+dnl Check if the GNU-specific sched_getcpu function exists.
+AC_CHECK_FUNC([sched_getcpu],
+              [have_sched_getcpu="1"],
+              [have_sched_getcpu="0"]
+             )
+if test "x$have_sched_getcpu" = "x1" ; then
+  AC_DEFINE([JEMALLOC_HAVE_SCHED_GETCPU], [ ])
+fi
+
+dnl Check if the GNU-specific sched_setaffinity function exists.
+AC_CHECK_FUNC([sched_setaffinity],
+              [have_sched_setaffinity="1"],
+              [have_sched_setaffinity="0"]
+             )
+if test "x$have_sched_setaffinity" = "x1" ; then
+  AC_DEFINE([JEMALLOC_HAVE_SCHED_SETAFFINITY], [ ])
+fi
+
+dnl Check if the Solaris/BSD issetugid function exists.
+AC_CHECK_FUNC([issetugid],
+              [have_issetugid="1"],
+              [have_issetugid="0"]
+             )
+if test "x$have_issetugid" = "x1" ; then
+  AC_DEFINE([JEMALLOC_HAVE_ISSETUGID], [ ])
+fi
+
+dnl Check whether the BSD-specific _malloc_thread_cleanup() exists.  If so, use
+dnl it rather than pthreads TSD cleanup functions to support cleanup during
+dnl thread exit, in order to avoid pthreads library recursion during
+dnl bootstrapping.
+AC_CHECK_FUNC([_malloc_thread_cleanup],
+              [have__malloc_thread_cleanup="1"],
+              [have__malloc_thread_cleanup="0"]
+             )
+if test "x$have__malloc_thread_cleanup" = "x1" ; then
+  AC_DEFINE([JEMALLOC_MALLOC_THREAD_CLEANUP], [ ])
+  wrap_syms="${wrap_syms} _malloc_thread_cleanup"
+  force_tls="1"
+fi
+
+dnl Check whether the BSD-specific _pthread_mutex_init_calloc_cb() exists.  If
+dnl so, mutex initialization causes allocation, and we need to implement this
+dnl callback function in order to prevent recursive allocation.
+AC_CHECK_FUNC([_pthread_mutex_init_calloc_cb],
+              [have__pthread_mutex_init_calloc_cb="1"],
+              [have__pthread_mutex_init_calloc_cb="0"]
+             )
+if test "x$have__pthread_mutex_init_calloc_cb" = "x1" ; then
+  AC_DEFINE([JEMALLOC_MUTEX_INIT_CB])
+  wrap_syms="${wrap_syms} _malloc_prefork _malloc_postfork"
+fi
+
+dnl Disable lazy locking by default.
+AC_ARG_ENABLE([lazy_lock],
+  [AS_HELP_STRING([--enable-lazy-lock],
+  [Enable lazy locking (only lock when multi-threaded)])],
+[if test "x$enable_lazy_lock" = "xno" ; then
+  enable_lazy_lock="0"
+else
+  enable_lazy_lock="1"
+fi
+],
+[enable_lazy_lock=""]
+)
+if test "x${enable_lazy_lock}" = "x" ; then
+  if test "x${force_lazy_lock}" = "x1" ; then
+    AC_MSG_RESULT([Forcing lazy-lock to avoid allocator/threading bootstrap issues])
+    enable_lazy_lock="1"
+  else
+    enable_lazy_lock="0"
+  fi
+fi
+if test "x${enable_lazy_lock}" = "x1" -a "x${abi}" = "xpecoff" ; then
+  AC_MSG_RESULT([Forcing no lazy-lock because thread creation monitoring is unimplemented])
+  enable_lazy_lock="0"
+fi
+if test "x$enable_lazy_lock" = "x1" ; then
+  if test "x$have_dlsym" = "x1" ; then
+    AC_DEFINE([JEMALLOC_LAZY_LOCK], [ ])
+  else
+    AC_MSG_ERROR([Missing dlsym support: lazy-lock cannot be enabled.])
+  fi
+fi
+AC_SUBST([enable_lazy_lock])
+
+dnl Automatically configure TLS.
+if test "x${force_tls}" = "x1" ; then
+  enable_tls="1"
+elif test "x${force_tls}" = "x0" ; then
+  enable_tls="0"
+else
+  enable_tls="1"
+fi
+if test "x${enable_tls}" = "x1" ; then
+AC_MSG_CHECKING([for TLS])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[
+    __thread int x;
+]], [[
+    x = 42;
+
+    return 0;
+]])],
+              AC_MSG_RESULT([yes]),
+              AC_MSG_RESULT([no])
+              enable_tls="0")
+else
+  enable_tls="0"
+fi
+AC_SUBST([enable_tls])
+if test "x${enable_tls}" = "x1" ; then
+  AC_DEFINE_UNQUOTED([JEMALLOC_TLS], [ ])
+fi
+
+dnl ============================================================================
+dnl Check for C11 atomics.
+
+JE_COMPILABLE([C11 atomics], [
+#include <stdint.h>
+#if (__STDC_VERSION__ >= 201112L) && !defined(__STDC_NO_ATOMICS__)
+#include <stdatomic.h>
+#else
+#error Atomics not available
+#endif
+], [
+    uint64_t *p = (uint64_t *)0;
+    uint64_t x = 1;
+    volatile atomic_uint_least64_t *a = (volatile atomic_uint_least64_t *)p;
+    uint64_t r = atomic_fetch_add(a, x) + x;
+    return r == 0;
+], [je_cv_c11_atomics])
+if test "x${je_cv_c11_atomics}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_C11_ATOMICS])
+fi
+
+dnl ============================================================================
+dnl Check for GCC-style __atomic atomics.
+
+JE_COMPILABLE([GCC __atomic atomics], [
+], [
+    int x = 0;
+    int val = 1;
+    int y = __atomic_fetch_add(&x, val, __ATOMIC_RELAXED);
+    int after_add = x;
+    return after_add == 1;
+], [je_cv_gcc_atomic_atomics])
+if test "x${je_cv_gcc_atomic_atomics}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_GCC_ATOMIC_ATOMICS])
+
+  dnl check for 8-bit atomic support
+  JE_COMPILABLE([GCC 8-bit __atomic atomics], [
+  ], [
+      unsigned char x = 0;
+      int val = 1;
+      int y = __atomic_fetch_add(&x, val, __ATOMIC_RELAXED);
+      int after_add = (int)x;
+      return after_add == 1;
+  ], [je_cv_gcc_u8_atomic_atomics])
+  if test "x${je_cv_gcc_u8_atomic_atomics}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_GCC_U8_ATOMIC_ATOMICS])
+  fi
+fi
+
+dnl ============================================================================
+dnl Check for GCC-style __sync atomics.
+
+JE_COMPILABLE([GCC __sync atomics], [
+], [
+    int x = 0;
+    int before_add = __sync_fetch_and_add(&x, 1);
+    int after_add = x;
+    return (before_add == 0) && (after_add == 1);
+], [je_cv_gcc_sync_atomics])
+if test "x${je_cv_gcc_sync_atomics}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_GCC_SYNC_ATOMICS])
+
+  dnl check for 8-bit atomic support
+  JE_COMPILABLE([GCC 8-bit __sync atomics], [
+  ], [
+      unsigned char x = 0;
+      int before_add = __sync_fetch_and_add(&x, 1);
+      int after_add = (int)x;
+      return (before_add == 0) && (after_add == 1);
+  ], [je_cv_gcc_u8_sync_atomics])
+  if test "x${je_cv_gcc_u8_sync_atomics}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_GCC_U8_SYNC_ATOMICS])
+  fi
+fi
+
+dnl ============================================================================
+dnl Check for atomic(3) operations as provided on Darwin.
+dnl We need this not for the atomic operations (which are provided above), but
+dnl rather for the OS_unfair_lock type it exposes.
+
+JE_COMPILABLE([Darwin OSAtomic*()], [
+#include <libkern/OSAtomic.h>
+#include <inttypes.h>
+], [
+	{
+		int32_t x32 = 0;
+		volatile int32_t *x32p = &x32;
+		OSAtomicAdd32(1, x32p);
+	}
+	{
+		int64_t x64 = 0;
+		volatile int64_t *x64p = &x64;
+		OSAtomicAdd64(1, x64p);
+	}
+], [je_cv_osatomic])
+if test "x${je_cv_osatomic}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_OSATOMIC], [ ])
+fi
+
+dnl ============================================================================
+dnl Check for madvise(2).
+
+JE_COMPILABLE([madvise(2)], [
+#include <sys/mman.h>
+], [
+	madvise((void *)0, 0, 0);
+], [je_cv_madvise])
+if test "x${je_cv_madvise}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_MADVISE], [ ])
+
+  dnl Check for madvise(..., MADV_FREE).
+  JE_COMPILABLE([madvise(..., MADV_FREE)], [
+#include <sys/mman.h>
+], [
+	madvise((void *)0, 0, MADV_FREE);
+], [je_cv_madv_free])
+  if test "x${je_cv_madv_free}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
+  elif test "x${je_cv_madvise}" = "xyes" ; then
+    case "${host_cpu}" in i686|x86_64)
+        case "${host}" in *-*-linux*)
+            AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
+            AC_DEFINE([JEMALLOC_DEFINE_MADVISE_FREE], [ ])
+	    ;;
+        esac
+        ;;
+    esac
+  fi
+
+  dnl Check for madvise(..., MADV_DONTNEED).
+  JE_COMPILABLE([madvise(..., MADV_DONTNEED)], [
+#include <sys/mman.h>
+], [
+	madvise((void *)0, 0, MADV_DONTNEED);
+], [je_cv_madv_dontneed])
+  if test "x${je_cv_madv_dontneed}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_PURGE_MADVISE_DONTNEED], [ ])
+  fi
+
+  dnl Check for madvise(..., MADV_DO[NT]DUMP).
+  JE_COMPILABLE([madvise(..., MADV_DO[[NT]]DUMP)], [
+#include <sys/mman.h>
+], [
+	madvise((void *)0, 0, MADV_DONTDUMP);
+	madvise((void *)0, 0, MADV_DODUMP);
+], [je_cv_madv_dontdump])
+  if test "x${je_cv_madv_dontdump}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_MADVISE_DONTDUMP], [ ])
+  fi
+
+  dnl Check for madvise(..., MADV_[NO]HUGEPAGE).
+  JE_COMPILABLE([madvise(..., MADV_[[NO]]HUGEPAGE)], [
+#include <sys/mman.h>
+], [
+	madvise((void *)0, 0, MADV_HUGEPAGE);
+	madvise((void *)0, 0, MADV_NOHUGEPAGE);
+], [je_cv_thp])
+case "${host_cpu}" in
+  arm*)
+    ;;
+  *)
+  if test "x${je_cv_thp}" = "xyes" ; then
+    AC_DEFINE([JEMALLOC_HAVE_MADVISE_HUGE], [ ])
+  fi
+  ;;
+esac
+fi
+
+dnl ============================================================================
+dnl Check for __builtin_clz() and __builtin_clzl().
+
+AC_CACHE_CHECK([for __builtin_clz],
+               [je_cv_builtin_clz],
+               [AC_LINK_IFELSE([AC_LANG_PROGRAM([],
+                                                [
+                                                {
+                                                        unsigned x = 0;
+                                                        int y = __builtin_clz(x);
+                                                }
+                                                {
+                                                        unsigned long x = 0;
+                                                        int y = __builtin_clzl(x);
+                                                }
+                                                ])],
+                               [je_cv_builtin_clz=yes],
+                               [je_cv_builtin_clz=no])])
+
+if test "x${je_cv_builtin_clz}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_BUILTIN_CLZ], [ ])
+fi
+
+dnl ============================================================================
+dnl Check for os_unfair_lock operations as provided on Darwin.
+
+JE_COMPILABLE([Darwin os_unfair_lock_*()], [
+#include <os/lock.h>
+#include <AvailabilityMacros.h>
+], [
+	#if MAC_OS_X_VERSION_MIN_REQUIRED < 101200
+	#error "os_unfair_lock is not supported"
+	#else
+	os_unfair_lock lock = OS_UNFAIR_LOCK_INIT;
+	os_unfair_lock_lock(&lock);
+	os_unfair_lock_unlock(&lock);
+	#endif
+], [je_cv_os_unfair_lock])
+if test "x${je_cv_os_unfair_lock}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_OS_UNFAIR_LOCK], [ ])
+fi
+
+dnl ============================================================================
+dnl Darwin-related configuration.
+
+AC_ARG_ENABLE([zone-allocator],
+  [AS_HELP_STRING([--disable-zone-allocator],
+                  [Disable zone allocator for Darwin])],
+[if test "x$enable_zone_allocator" = "xno" ; then
+  enable_zone_allocator="0"
+else
+  enable_zone_allocator="1"
+fi
+],
+[if test "x${abi}" = "xmacho"; then
+  enable_zone_allocator="1"
+fi
+]
+)
+AC_SUBST([enable_zone_allocator])
+
+if test "x${enable_zone_allocator}" = "x1" ; then
+  if test "x${abi}" != "xmacho"; then
+    AC_MSG_ERROR([--enable-zone-allocator is only supported on Darwin])
+  fi
+  AC_DEFINE([JEMALLOC_ZONE], [ ])
+fi
+
+dnl ============================================================================
+dnl Use initial-exec TLS by default.
+AC_ARG_ENABLE([initial-exec-tls],
+  [AS_HELP_STRING([--disable-initial-exec-tls],
+                  [Disable the initial-exec tls model])],
+[if test "x$enable_initial_exec_tls" = "xno" ; then
+  enable_initial_exec_tls="0"
+else
+  enable_initial_exec_tls="1"
+fi
+],
+[enable_initial_exec_tls="1"]
+)
+AC_SUBST([enable_initial_exec_tls])
+
+if test "x${je_cv_tls_model}" = "xyes" -a \
+       "x${enable_initial_exec_tls}" = "x1" ; then
+  AC_DEFINE([JEMALLOC_TLS_MODEL],
+            [__attribute__((tls_model("initial-exec")))])
+else
+  AC_DEFINE([JEMALLOC_TLS_MODEL], [ ])
+fi
+
+dnl ============================================================================
+dnl Enable background threads if possible.
+
+if test "x${have_pthread}" = "x1" -a "x${je_cv_os_unfair_lock}" != "xyes" ; then
+  AC_DEFINE([JEMALLOC_BACKGROUND_THREAD])
+fi
+
+dnl ============================================================================
+dnl Check for glibc malloc hooks
+
+JE_COMPILABLE([glibc malloc hook], [
+#include <stddef.h>
+
+extern void (* __free_hook)(void *ptr);
+extern void *(* __malloc_hook)(size_t size);
+extern void *(* __realloc_hook)(void *ptr, size_t size);
+], [
+  void *ptr = 0L;
+  if (__malloc_hook) ptr = __malloc_hook(1);
+  if (__realloc_hook) ptr = __realloc_hook(ptr, 2);
+  if (__free_hook && ptr) __free_hook(ptr);
+], [je_cv_glibc_malloc_hook])
+if test "x${je_cv_glibc_malloc_hook}" = "xyes" ; then
+  if test "x${JEMALLOC_PREFIX}" = "x" ; then
+    AC_DEFINE([JEMALLOC_GLIBC_MALLOC_HOOK], [ ])
+    wrap_syms="${wrap_syms} __free_hook __malloc_hook __realloc_hook"
+  fi
+fi
+
+JE_COMPILABLE([glibc memalign hook], [
+#include <stddef.h>
+
+extern void *(* __memalign_hook)(size_t alignment, size_t size);
+], [
+  void *ptr = 0L;
+  if (__memalign_hook) ptr = __memalign_hook(16, 7);
+], [je_cv_glibc_memalign_hook])
+if test "x${je_cv_glibc_memalign_hook}" = "xyes" ; then
+  if test "x${JEMALLOC_PREFIX}" = "x" ; then
+    AC_DEFINE([JEMALLOC_GLIBC_MEMALIGN_HOOK], [ ])
+    wrap_syms="${wrap_syms} __memalign_hook"
+  fi
+fi
+
+JE_COMPILABLE([pthreads adaptive mutexes], [
+#include <pthread.h>
+], [
+  pthread_mutexattr_t attr;
+  pthread_mutexattr_init(&attr);
+  pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ADAPTIVE_NP);
+  pthread_mutexattr_destroy(&attr);
+], [je_cv_pthread_mutex_adaptive_np])
+if test "x${je_cv_pthread_mutex_adaptive_np}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP], [ ])
+fi
+
+JE_CFLAGS_SAVE()
+JE_CFLAGS_ADD([-D_GNU_SOURCE])
+JE_CFLAGS_ADD([-Werror])
+JE_CFLAGS_ADD([-herror_on_warning])
+JE_COMPILABLE([strerror_r returns char with gnu source], [
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+], [
+  char *buffer = (char *) malloc(100);
+  char *error = strerror_r(EINVAL, buffer, 100);
+  printf("%s\n", error);
+], [je_cv_strerror_r_returns_char_with_gnu_source])
+JE_CFLAGS_RESTORE()
+if test "x${je_cv_strerror_r_returns_char_with_gnu_source}" = "xyes" ; then
+  AC_DEFINE([JEMALLOC_STRERROR_R_RETURNS_CHAR_WITH_GNU_SOURCE], [ ])
+fi
+
+dnl ============================================================================
+dnl Check for typedefs, structures, and compiler characteristics.
+AC_HEADER_STDBOOL
+
+dnl ============================================================================
+dnl Define commands that generate output files.
+
+AC_CONFIG_COMMANDS([include/jemalloc/internal/public_symbols.txt], [
+  f="${objroot}include/jemalloc/internal/public_symbols.txt"
+  mkdir -p "${objroot}include/jemalloc/internal"
+  cp /dev/null "${f}"
+  for nm in `echo ${mangling_map} |tr ',' ' '` ; do
+    n=`echo ${nm} |tr ':' ' ' |awk '{print $[]1}'`
+    m=`echo ${nm} |tr ':' ' ' |awk '{print $[]2}'`
+    echo "${n}:${m}" >> "${f}"
+    dnl Remove name from public_syms so that it isn't redefined later.
+    public_syms=`for sym in ${public_syms}; do echo "${sym}"; done |grep -v "^${n}\$" |tr '\n' ' '`
+  done
+  for sym in ${public_syms} ; do
+    n="${sym}"
+    m="${JEMALLOC_PREFIX}${sym}"
+    echo "${n}:${m}" >> "${f}"
+  done
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+  mangling_map="${mangling_map}"
+  public_syms="${public_syms}"
+  JEMALLOC_PREFIX="${JEMALLOC_PREFIX}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/internal/private_symbols.awk], [
+  f="${objroot}include/jemalloc/internal/private_symbols.awk"
+  mkdir -p "${objroot}include/jemalloc/internal"
+  export_syms=`for sym in ${public_syms}; do echo "${JEMALLOC_PREFIX}${sym}"; done; for sym in ${wrap_syms}; do echo "${sym}"; done;`
+  "${srcdir}/include/jemalloc/internal/private_symbols.sh" "${SYM_PREFIX}" ${export_syms} > "${objroot}include/jemalloc/internal/private_symbols.awk"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+  public_syms="${public_syms}"
+  wrap_syms="${wrap_syms}"
+  SYM_PREFIX="${SYM_PREFIX}"
+  JEMALLOC_PREFIX="${JEMALLOC_PREFIX}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/internal/private_symbols_jet.awk], [
+  f="${objroot}include/jemalloc/internal/private_symbols_jet.awk"
+  mkdir -p "${objroot}include/jemalloc/internal"
+  export_syms=`for sym in ${public_syms}; do echo "jet_${sym}"; done; for sym in ${wrap_syms}; do echo "${sym}"; done;`
+  "${srcdir}/include/jemalloc/internal/private_symbols.sh" "${SYM_PREFIX}" ${export_syms} > "${objroot}include/jemalloc/internal/private_symbols_jet.awk"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+  public_syms="${public_syms}"
+  wrap_syms="${wrap_syms}"
+  SYM_PREFIX="${SYM_PREFIX}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/internal/public_namespace.h], [
+  mkdir -p "${objroot}include/jemalloc/internal"
+  "${srcdir}/include/jemalloc/internal/public_namespace.sh" "${objroot}include/jemalloc/internal/public_symbols.txt" > "${objroot}include/jemalloc/internal/public_namespace.h"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/internal/public_unnamespace.h], [
+  mkdir -p "${objroot}include/jemalloc/internal"
+  "${srcdir}/include/jemalloc/internal/public_unnamespace.sh" "${objroot}include/jemalloc/internal/public_symbols.txt" > "${objroot}include/jemalloc/internal/public_unnamespace.h"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/jemalloc_protos_jet.h], [
+  mkdir -p "${objroot}include/jemalloc"
+  cat "${srcdir}/include/jemalloc/jemalloc_protos.h.in" | sed -e 's/@je_@/jet_/g' > "${objroot}include/jemalloc/jemalloc_protos_jet.h"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/jemalloc_rename.h], [
+  mkdir -p "${objroot}include/jemalloc"
+  "${srcdir}/include/jemalloc/jemalloc_rename.sh" "${objroot}include/jemalloc/internal/public_symbols.txt" > "${objroot}include/jemalloc/jemalloc_rename.h"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/jemalloc_mangle.h], [
+  mkdir -p "${objroot}include/jemalloc"
+  "${srcdir}/include/jemalloc/jemalloc_mangle.sh" "${objroot}include/jemalloc/internal/public_symbols.txt" je_ > "${objroot}include/jemalloc/jemalloc_mangle.h"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/jemalloc_mangle_jet.h], [
+  mkdir -p "${objroot}include/jemalloc"
+  "${srcdir}/include/jemalloc/jemalloc_mangle.sh" "${objroot}include/jemalloc/internal/public_symbols.txt" jet_ > "${objroot}include/jemalloc/jemalloc_mangle_jet.h"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+])
+AC_CONFIG_COMMANDS([include/jemalloc/jemalloc.h], [
+  mkdir -p "${objroot}include/jemalloc"
+  "${srcdir}/include/jemalloc/jemalloc.sh" "${objroot}" > "${objroot}include/jemalloc/jemalloc${install_suffix}.h"
+], [
+  srcdir="${srcdir}"
+  objroot="${objroot}"
+  install_suffix="${install_suffix}"
+])
+
+dnl Process .in files.
+AC_SUBST([cfghdrs_in])
+AC_SUBST([cfghdrs_out])
+AC_CONFIG_HEADERS([$cfghdrs_tup])
+
+dnl ============================================================================
+dnl Generate outputs.
+
+AC_CONFIG_FILES([$cfgoutputs_tup config.stamp bin/jemalloc-config bin/jemalloc.sh bin/jeprof])
+AC_SUBST([cfgoutputs_in])
+AC_SUBST([cfgoutputs_out])
+AC_OUTPUT
+
+dnl ============================================================================
+dnl Print out the results of configuration.
+AC_MSG_RESULT([===============================================================================])
+AC_MSG_RESULT([jemalloc version   : ${jemalloc_version}])
+AC_MSG_RESULT([library revision   : ${rev}])
+AC_MSG_RESULT([])
+AC_MSG_RESULT([CONFIG             : ${CONFIG}])
+AC_MSG_RESULT([CC                 : ${CC}])
+AC_MSG_RESULT([CONFIGURE_CFLAGS   : ${CONFIGURE_CFLAGS}])
+AC_MSG_RESULT([SPECIFIED_CFLAGS   : ${SPECIFIED_CFLAGS}])
+AC_MSG_RESULT([EXTRA_CFLAGS       : ${EXTRA_CFLAGS}])
+AC_MSG_RESULT([CPPFLAGS           : ${CPPFLAGS}])
+AC_MSG_RESULT([CXX                : ${CXX}])
+AC_MSG_RESULT([CONFIGURE_CXXFLAGS : ${CONFIGURE_CXXFLAGS}])
+AC_MSG_RESULT([SPECIFIED_CXXFLAGS : ${SPECIFIED_CXXFLAGS}])
+AC_MSG_RESULT([EXTRA_CXXFLAGS     : ${EXTRA_CXXFLAGS}])
+AC_MSG_RESULT([LDFLAGS            : ${LDFLAGS}])
+AC_MSG_RESULT([EXTRA_LDFLAGS      : ${EXTRA_LDFLAGS}])
+AC_MSG_RESULT([DSO_LDFLAGS        : ${DSO_LDFLAGS}])
+AC_MSG_RESULT([LIBS               : ${LIBS}])
+AC_MSG_RESULT([RPATH_EXTRA        : ${RPATH_EXTRA}])
+AC_MSG_RESULT([])
+AC_MSG_RESULT([XSLTPROC           : ${XSLTPROC}])
+AC_MSG_RESULT([XSLROOT            : ${XSLROOT}])
+AC_MSG_RESULT([])
+AC_MSG_RESULT([PREFIX             : ${PREFIX}])
+AC_MSG_RESULT([BINDIR             : ${BINDIR}])
+AC_MSG_RESULT([DATADIR            : ${DATADIR}])
+AC_MSG_RESULT([INCLUDEDIR         : ${INCLUDEDIR}])
+AC_MSG_RESULT([LIBDIR             : ${LIBDIR}])
+AC_MSG_RESULT([MANDIR             : ${MANDIR}])
+AC_MSG_RESULT([])
+AC_MSG_RESULT([srcroot            : ${srcroot}])
+AC_MSG_RESULT([abs_srcroot        : ${abs_srcroot}])
+AC_MSG_RESULT([objroot            : ${objroot}])
+AC_MSG_RESULT([abs_objroot        : ${abs_objroot}])
+AC_MSG_RESULT([])
+AC_MSG_RESULT([JEMALLOC_PREFIX    : ${JEMALLOC_PREFIX}])
+AC_MSG_RESULT([JEMALLOC_PRIVATE_NAMESPACE])
+AC_MSG_RESULT([                   : ${JEMALLOC_PRIVATE_NAMESPACE}])
+AC_MSG_RESULT([install_suffix     : ${install_suffix}])
+AC_MSG_RESULT([malloc_conf        : ${config_malloc_conf}])
+AC_MSG_RESULT([documentation      : ${enable_doc}])
+AC_MSG_RESULT([shared libs        : ${enable_shared}])
+AC_MSG_RESULT([static libs        : ${enable_static}])
+AC_MSG_RESULT([autogen            : ${enable_autogen}])
+AC_MSG_RESULT([debug              : ${enable_debug}])
+AC_MSG_RESULT([stats              : ${enable_stats}])
+AC_MSG_RESULT([experimetal_smallocx : ${enable_experimental_smallocx}])
+AC_MSG_RESULT([prof               : ${enable_prof}])
+AC_MSG_RESULT([prof-libunwind     : ${enable_prof_libunwind}])
+AC_MSG_RESULT([prof-libgcc        : ${enable_prof_libgcc}])
+AC_MSG_RESULT([prof-gcc           : ${enable_prof_gcc}])
+AC_MSG_RESULT([fill               : ${enable_fill}])
+AC_MSG_RESULT([utrace             : ${enable_utrace}])
+AC_MSG_RESULT([xmalloc            : ${enable_xmalloc}])
+AC_MSG_RESULT([log                : ${enable_log}])
+AC_MSG_RESULT([lazy_lock          : ${enable_lazy_lock}])
+AC_MSG_RESULT([cache-oblivious    : ${enable_cache_oblivious}])
+AC_MSG_RESULT([cxx                : ${enable_cxx}])
+AC_MSG_RESULT([===============================================================================])