Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

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

1 files changed, 1057 insertions, 0 deletions

diff --git a/js/src/old-configure.in b/js/src/old-configure.in
new file mode 100644
index 0000000000..cabd72a2b6
--- /dev/null
+++ b/js/src/old-configure.in
@@ -0,0 +1,1057 @@
+dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; -*-
+dnl vi: set tabstop=4 shiftwidth=4 expandtab syntax=m4:
+dnl This Source Code Form is subject to the terms of the Mozilla Public
+dnl License, v. 2.0. If a copy of the MPL was not distributed with this
+dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+dnl Process this file with autoconf to produce a configure script.
+dnl ========================================================
+AC_PREREQ(2.13)
+AC_INIT(js/src/jsapi.h)
+AC_CONFIG_AUX_DIR(${srcdir}/build/autoconf)
+AC_CANONICAL_SYSTEM
+
+dnl ========================================================
+dnl =
+dnl = Don't change the following lines. Doing so breaks:
+dnl =
+dnl = CFLAGS="-foo" ./configure
+dnl =
+dnl ========================================================
+CFLAGS="${CFLAGS=}"
+CPPFLAGS="${CPPFLAGS=}"
+CXXFLAGS="${CXXFLAGS=}"
+LDFLAGS="${LDFLAGS=}"
+HOST_CFLAGS="${HOST_CFLAGS=}"
+HOST_CXXFLAGS="${HOST_CXXFLAGS=}"
+HOST_LDFLAGS="${HOST_LDFLAGS=}"
+
+dnl Set the minimum version of toolkit libs used by mozilla
+dnl ========================================================
+W32API_VERSION=3.14
+
+dnl Set various checks
+dnl ========================================================
+MISSING_X=
+
+dnl Initialize the Pthread test variables early so they can be
+dnl  overridden by each platform.
+dnl ========================================================
+USE_PTHREADS=
+_PTHREAD_LDFLAGS=""
+
+LDFLAGS="$LDFLAGS $LINKER_LDFLAGS"
+HOST_LDFLAGS="$HOST_LDFLAGS $HOST_LINKER_LDFLAGS"
+
+if test -z "$JS_STANDALONE"; then
+  autoconfmk=autoconf-js.mk
+fi
+AC_SUBST(autoconfmk)
+
+jsconfdefs=$_objdir/js/src/js-confdefs.h
+
+MOZ_ANDROID_NDK
+
+dnl ========================================================
+dnl Checks for compilers.
+dnl ========================================================
+
+if test "$COMPILE_ENVIRONMENT"; then
+
+# Run some logic to figure out exe extensions (mostly for mingw's sake)
+AC_EXEEXT
+
+# Note:
+#   In Mozilla, we use the names $target, $host and $build incorrectly, but are
+#   too far gone to back out now. See Bug 475488:
+#     - When we say $target, we mean $host, that is, the system on which
+#       Mozilla will be run.
+#     - When we say $host, we mean $build, that is, the system on which Mozilla
+#       is built.
+#     - $target (in its correct usage) is for compilers who generate code for a
+#       different platform than $host, so it would not be used by Mozilla.
+if test "$target" != "$host"; then
+    MOZ_CROSS_COMPILER
+else
+    AC_PROG_CC
+    AC_PROG_CXX
+fi
+
+MOZ_TOOL_VARIABLES
+
+dnl Special win32 checks
+dnl ========================================================
+
+# Target the Windows 8.1 SDK by default
+WINVER=601
+
+case "$target" in
+*-mingw*)
+    if test "$GCC" != "yes"; then
+        # Check to see if we are really running in a msvc environemnt
+        _WIN32_MSVC=1
+
+        # Make sure compilers are valid
+        CXXFLAGS="$CXXFLAGS -TP"
+        # _CRT_SECURE_NO_WARNINGS disables warnings about using MSVC-specific
+        # secure CRT functions.
+        CXXFLAGS="$CXXFLAGS -D_CRT_SECURE_NO_WARNINGS"
+        AC_LANG_SAVE
+        AC_LANG_C
+        AC_TRY_COMPILE([#include <stdio.h>],
+            [ printf("Hello World\n"); ],,
+            AC_MSG_ERROR([\$(CC) test failed.  You must have MS VC++ in your path to build.]) )
+
+        AC_LANG_CPLUSPLUS
+        AC_TRY_COMPILE([#include <new.h>],
+            [ unsigned *test = new unsigned(42); ],,
+            AC_MSG_ERROR([\$(CXX) test failed.  You must have MS VC++ in your path to build.]) )
+        AC_LANG_RESTORE
+
+        AC_DEFINE(_CRT_SECURE_NO_WARNINGS)
+        AC_DEFINE(_CRT_NONSTDC_NO_WARNINGS)
+
+        MSVC_C_RUNTIME_DLL=vcruntime140.dll
+        if test -n "$IS_VS2019_OR_MORE" -a "$CPU_ARCH" != "x86"; then
+            MSVC_C_RUNTIME_1_DLL=vcruntime140_1.dll
+        fi
+        MSVC_CXX_RUNTIME_DLL=msvcp140.dll
+
+        # -Zc:sizedDealloc- disables C++14 global sized deallocation (see bug 1160146)
+        CXXFLAGS="$CXXFLAGS -Zc:sizedDealloc-"
+
+        AC_SUBST(MSVC_C_RUNTIME_DLL)
+        AC_SUBST(MSVC_C_RUNTIME_1_DLL)
+        AC_SUBST(MSVC_CXX_RUNTIME_DLL)
+
+        CFLAGS="$CFLAGS -D_HAS_EXCEPTIONS=0"
+        CXXFLAGS="$CXXFLAGS -D_HAS_EXCEPTIONS=0"
+    else
+        # Check w32api version
+        _W32API_MAJOR_VERSION=`echo $W32API_VERSION | $AWK -F\. '{ print $1 }'`
+        _W32API_MINOR_VERSION=`echo $W32API_VERSION | $AWK -F\. '{ print $2 }'`
+        AC_MSG_CHECKING([for w32api version >= $W32API_VERSION])
+        AC_TRY_COMPILE([#include <w32api.h>],
+            #if (__W32API_MAJOR_VERSION < $_W32API_MAJOR_VERSION) || \
+                (__W32API_MAJOR_VERSION == $_W32API_MAJOR_VERSION && \
+                 __W32API_MINOR_VERSION < $_W32API_MINOR_VERSION)
+                #error "test failed."
+            #endif
+            , [ res=yes ], [ res=no ])
+        AC_MSG_RESULT([$res])
+        if test "$res" != "yes"; then
+            AC_MSG_ERROR([w32api version $W32API_VERSION or higher required.])
+        fi
+    fi # !GNU_CC
+
+    AC_DEFINE(_USE_MATH_DEFINES) # Otherwise Windows' math.h doesn't #define M_PI.
+
+    AC_DEFINE_UNQUOTED(WINVER,0x$WINVER)
+    AC_DEFINE_UNQUOTED(_WIN32_WINNT,0x$WINVER)
+    # Require OS features provided by IE 8.0 (Win7)
+    AC_DEFINE_UNQUOTED(_WIN32_IE,0x0800)
+
+    ;;
+esac
+
+if test -n "$_WIN32_MSVC"; then
+    SKIP_PATH_CHECKS=1
+    SKIP_COMPILER_CHECKS=1
+    SKIP_LIBRARY_CHECKS=1
+fi
+
+fi # COMPILE_ENVIRONMENT
+
+AC_SUBST(GNU_CC)
+AC_SUBST(GNU_CXX)
+
+dnl ========================================================
+dnl set the defaults first
+dnl ========================================================
+MOZ_FIX_LINK_PATHS="-Wl,-rpath-link,${DIST}/bin -Wl,-rpath-link,${prefix}/lib"
+
+dnl Configure platform-specific CPU architecture compiler options.
+dnl ==============================================================
+MOZ_ARCH_OPTS
+
+MOZ_CONFIG_SANITIZE
+
+dnl ========================================================
+dnl GNU specific defaults
+dnl ========================================================
+if test "$GNU_CC"; then
+    DSO_LDOPTS='-shared'
+    if test "$GCC_USE_GNU_LD"; then
+        # Some tools like ASan use a runtime library that is only
+        # linked against executables, so we must allow undefined
+        # symbols for shared objects in some cases.
+        if test -z "$MOZ_ASAN$MOZ_MSAN$MOZ_UBSAN$MOZ_TSAN$FUZZING_INTERFACES"; then
+            # Don't allow undefined symbols in libraries
+            DSO_LDOPTS="$DSO_LDOPTS -Wl,-z,defs"
+        fi
+    fi
+
+    if test "$OS_ARCH" != "WINNT"; then
+        DSO_PIC_CFLAGS='-fPIC'
+        ASFLAGS="$ASFLAGS -fPIC"
+    fi
+
+    AC_MSG_CHECKING([for --noexecstack option to as])
+    _SAVE_CFLAGS=$CFLAGS
+    CFLAGS="$CFLAGS -Wa,--noexecstack"
+    AC_TRY_COMPILE(,,AC_MSG_RESULT([yes])
+                     [ASFLAGS="$ASFLAGS -Wa,--noexecstack"],
+                     AC_MSG_RESULT([no]))
+    CFLAGS=$_SAVE_CFLAGS
+    AC_MSG_CHECKING([for -z noexecstack option to ld])
+    _SAVE_LDFLAGS=$LDFLAGS
+    LDFLAGS="$LDFLAGS -Wl,-z,noexecstack"
+    AC_TRY_LINK(,,AC_MSG_RESULT([yes]),
+                  AC_MSG_RESULT([no])
+                  LDFLAGS=$_SAVE_LDFLAGS)
+
+    AC_MSG_CHECKING([for -z text option to ld])
+    _SAVE_LDFLAGS=$LDFLAGS
+    LDFLAGS="$LDFLAGS -Wl,-z,text"
+    AC_TRY_LINK(,,AC_MSG_RESULT([yes]),
+                  AC_MSG_RESULT([no])
+                  LDFLAGS=$_SAVE_LDFLAGS)
+
+    AC_MSG_CHECKING([for -z relro option to ld])
+    _SAVE_LDFLAGS=$LDFLAGS
+    LDFLAGS="$LDFLAGS -Wl,-z,relro"
+    AC_TRY_LINK(,,AC_MSG_RESULT([yes]),
+                  AC_MSG_RESULT([no])
+                  LDFLAGS=$_SAVE_LDFLAGS)
+
+    AC_MSG_CHECKING([for -z nocopyreloc option to ld])
+    _SAVE_LDFLAGS=$LDFLAGS
+    LDFLAGS="$LDFLAGS -Wl,-z,nocopyreloc"
+    AC_TRY_LINK(,,AC_MSG_RESULT([yes]),
+                  AC_MSG_RESULT([no])
+                  LDFLAGS=$_SAVE_LDFLAGS)
+
+    AC_MSG_CHECKING([for -Bsymbolic-functions option to ld])
+    _SAVE_LDFLAGS=$LDFLAGS
+    LDFLAGS="$LDFLAGS -Wl,-Bsymbolic-functions"
+    AC_TRY_LINK(,,AC_MSG_RESULT([yes]),
+                  AC_MSG_RESULT([no])
+                  LDFLAGS=$_SAVE_LDFLAGS)
+
+    # While sha1 is deterministic, it is slower.
+    if test -z "$DEVELOPER_OPTIONS"; then
+        build_id=sha1
+    else
+        build_id=uuid
+    fi
+    AC_MSG_CHECKING([for --build-id=$build_id option to ld])
+    _SAVE_LDFLAGS=$LDFLAGS
+    LDFLAGS="$LDFLAGS -Wl,--build-id=$build_id"
+    AC_TRY_LINK(,,AC_MSG_RESULT([yes]),
+                  AC_MSG_RESULT([no])
+                  LDFLAGS=$_SAVE_LDFLAGS)
+
+    _DEFINES_CFLAGS="-include $jsconfdefs -DMOZILLA_CLIENT"
+fi
+
+if test "$GNU_CXX"; then
+    _DEFINES_CXXFLAGS="-DMOZILLA_CLIENT -include $jsconfdefs"
+fi
+
+dnl ========================================================
+dnl System overrides of the defaults for host
+dnl ========================================================
+case "$host" in
+*mingw*)
+    if test -n "$_WIN32_MSVC"; then
+        HOST_CFLAGS="$HOST_CFLAGS"
+    else
+        HOST_CFLAGS="$HOST_CFLAGS -mwindows"
+    fi
+    HOST_CFLAGS="$HOST_CFLAGS -DXP_WIN -DWIN32 -D_WIN32 -D_CRT_SECURE_NO_WARNINGS"
+    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
+    HOST_BIN_SUFFIX=.exe
+
+    case "${host_cpu}" in
+    i*86)
+        if test -n "$_WIN32_MSVC"; then
+            HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X86"
+        fi
+        ;;
+    x86_64)
+        if test -n "$_WIN32_MSVC"; then
+            HOST_LDFLAGS="$HOST_LDFLAGS -MACHINE:X64"
+        fi
+        HOST_CFLAGS="$HOST_CFLAGS -D_AMD64_"
+        ;;
+    esac
+    ;;
+
+*-darwin*)
+    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX -DXP_MACOSX"
+    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O3}"
+    ;;
+
+*-linux*|*-kfreebsd*-gnu|*-gnu*)
+    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
+    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O3}"
+    ;;
+
+*)
+    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
+    HOST_OPTIMIZE_FLAGS="${HOST_OPTIMIZE_FLAGS=-O2}"
+    ;;
+esac
+
+dnl ========================================================
+dnl System overrides of the defaults for target
+dnl ========================================================
+
+case "$target" in
+*-darwin*)
+    MOZ_OPTIMIZE_FLAGS="-O3"
+    DSO_LDOPTS=''
+
+    dnl DTrace and -dead_strip don't interact well. See bug 403132.
+    dnl ===================================================================
+    if test "x$enable_dtrace" = "xyes"; then
+        echo "Skipping -dead_strip because DTrace is enabled. See bug 403132."
+    else
+        dnl check for the presence of the -dead_strip linker flag
+        AC_MSG_CHECKING([for -dead_strip option to ld])
+        _SAVE_LDFLAGS=$LDFLAGS
+        LDFLAGS="$LDFLAGS -Wl,-dead_strip"
+        AC_TRY_LINK(,[return 0;],_HAVE_DEAD_STRIP=1,_HAVE_DEAD_STRIP=)
+        if test -n "$_HAVE_DEAD_STRIP" ; then
+            AC_MSG_RESULT([yes])
+            MOZ_OPTIMIZE_LDFLAGS="-Wl,-dead_strip"
+        else
+            AC_MSG_RESULT([no])
+        fi
+
+        LDFLAGS=$_SAVE_LDFLAGS
+    fi
+    MOZ_FIX_LINK_PATHS=
+    ;;
+
+*-android*|*-linuxandroid*)
+    MOZ_OPTIMIZE_FLAGS="-O3"
+    if test -z "$CLANG_CC"; then
+       MOZ_OPTIMIZE_FLAGS="-freorder-blocks -fno-reorder-functions $MOZ_OPTIMIZE_FLAGS"
+    fi
+    ;;
+
+*-*linux*)
+    if test "$GNU_CC" -o "$GNU_CXX"; then
+        MOZ_PGO_OPTIMIZE_FLAGS="-O3"
+        MOZ_OPTIMIZE_FLAGS="-O3"
+        if test -z "$CLANG_CC"; then
+           MOZ_OPTIMIZE_FLAGS="-freorder-blocks $MOZ_OPTIMIZE_FLAGS"
+        fi
+    fi
+
+    case "${target_cpu}" in
+    alpha*)
+    	CFLAGS="$CFLAGS -mieee"
+    	CXXFLAGS="$CXXFLAGS -mieee"
+    ;;
+    esac
+    ;;
+
+*-mingw*)
+    DSO_PIC_CFLAGS=
+    if test -n "$GNU_CC" -o -n "$CLANG_CC"; then
+        # $GNU_CC will match gcc and clang; while $CLANG_CC will match only clang
+        if test -z "$CLANG_CC"; then
+            AC_MSG_ERROR(Firefox cannot be built with mingw-gcc and requires a mingw-clang toolchain to work)
+        fi
+
+        DSO_LDOPTS='-shared'
+        MOZ_FIX_LINK_PATHS=
+
+        # Silence problematic clang warnings
+        CXXFLAGS="$CXXFLAGS -Wno-incompatible-ms-struct"
+        LDFLAGS="$LDFLAGS -Wl,--no-insert-timestamp"
+
+        MOZ_OPTIMIZE_FLAGS="-O2"
+
+        WIN32_CONSOLE_EXE_LDFLAGS=-mconsole
+        WIN32_GUI_EXE_LDFLAGS=-mwindows
+    else
+        TARGET_COMPILER_ABI=msvc
+        # aarch64 doesn't support subsystems below 6.02
+        if test "$CPU_ARCH" = "aarch64"; then
+            WIN32_SUBSYSTEM_VERSION=6.02
+        else
+            WIN32_SUBSYSTEM_VERSION=6.01
+        fi
+        WIN32_CONSOLE_EXE_LDFLAGS=-SUBSYSTEM:CONSOLE,$WIN32_SUBSYSTEM_VERSION
+        WIN32_GUI_EXE_LDFLAGS=-SUBSYSTEM:WINDOWS,$WIN32_SUBSYSTEM_VERSION
+        DSO_LDOPTS=-SUBSYSTEM:WINDOWS,$WIN32_SUBSYSTEM_VERSION
+        _DEFINES_CFLAGS="-FI $jsconfdefs -DMOZILLA_CLIENT"
+        _DEFINES_CXXFLAGS="-FI $jsconfdefs -DMOZILLA_CLIENT"
+        CFLAGS="$CFLAGS -Gy -Zc:inline"
+        CXXFLAGS="$CXXFLAGS -Gy -Zc:inline"
+        if test "$CPU_ARCH" = "x86";then
+          dnl VS2012+ defaults to -arch:SSE2. We want to target nothing
+          dnl more recent, so set that explicitly here unless another
+          dnl target arch has already been set.
+          changequote(,)
+          if test -z `echo $CFLAGS | grep -i [-/]arch:` ; then
+            CFLAGS="$CFLAGS -arch:SSE2"
+          fi
+          if test -z `echo $CXXFLAGS | grep -i [-/]arch:` ; then
+            CXXFLAGS="$CXXFLAGS -arch:SSE2"
+          fi
+          changequote([,])
+        fi
+        dnl VS2013+ supports -Gw for better linker optimizations.
+        dnl http://blogs.msdn.com/b/vcblog/archive/2013/09/11/introducing-gw-compiler-switch.aspx
+        dnl Disabled on ASan because it causes false-positive ODR violations.
+        if test -z "$MOZ_ASAN"; then
+            CFLAGS="$CFLAGS -Gw"
+            CXXFLAGS="$CXXFLAGS -Gw"
+        else
+            # String tail merging doesn't play nice with ASan's ODR checker.
+            LDFLAGS="$LDFLAGS -opt:nolldtailmerge"
+        fi
+        MOZ_DEBUG_LDFLAGS='-DEBUG'
+        if test "$HOST_OS_ARCH" != "WINNT"; then
+          # %_PDB% is a special signal to emit only the PDB basename. This
+          # avoids problems in Windows tools that don't like forward-slashes.
+          MOZ_DEBUG_LDFLAGS="$MOZ_DEBUG_LDFLAGS -PDBALTPATH:%_PDB%"
+        fi
+        MOZ_OPTIMIZE_FLAGS="-O2"
+        MOZ_FIX_LINK_PATHS=
+        LDFLAGS="$LDFLAGS -LARGEADDRESSAWARE"
+    fi
+    AC_DEFINE(HAVE__MSIZE)
+    AC_DEFINE(WIN32_LEAN_AND_MEAN)
+    dnl See http://support.microsoft.com/kb/143208 to use STL
+    AC_DEFINE(NOMINMAX)
+    BIN_SUFFIX='.exe'
+
+    case "$host_os" in
+    cygwin*|msvc*|mks*)
+        AC_MSG_ERROR([Using a Cygwin build environment is unsupported. Configure cannot check for presence of necessary headers. Please upgrade to MozillaBuild; see https://developer.mozilla.org/en/Windows_Build_Prerequisites.])
+        ;;
+    esac
+
+    case "$target" in
+    i*86-*)
+        if test -n "$GNU_CC"; then
+            CFLAGS="$CFLAGS -mstackrealign"
+            CXXFLAGS="$CXXFLAGS -mstackrealign"
+            LDFLAGS="$LDFLAGS -Wl,--large-address-aware"
+        else
+            DSO_LDOPTS="$DSO_LDOPTS -MACHINE:X86"
+            LDFLAGS="$LDFLAGS -SAFESEH"
+        fi
+
+    	AC_DEFINE(_X86_)
+	;;
+    x86_64-*)
+        if test -n "$_WIN32_MSVC"; then
+            DSO_LDOPTS="$DSO_LDOPTS -MACHINE:X64"
+        fi
+        AC_DEFINE(_AMD64_)
+        ;;
+    aarch64-*)
+        if test -n "$_WIN32_MSVC"; then
+            DSO_LDOPTS="$DSO_LDOPTS -MACHINE:ARM64"
+        fi
+        AC_DEFINE(_ARM64_)
+        ;;
+    *)
+    	AC_DEFINE(_CPU_ARCH_NOT_DEFINED)
+	;;
+    esac
+    ;;
+
+*-netbsd*)
+    CFLAGS="$CFLAGS -Dunix"
+    CXXFLAGS="$CXXFLAGS -Dunix"
+    if $CC -E - -dM </dev/null | grep __ELF__ >/dev/null; then
+        DSO_PIC_CFLAGS='-fPIC -DPIC'
+        DSO_LDOPTS='-shared'
+        MOZ_PROGRAM_LDFLAGS="$MOZ_PROGRAM_LDFLAGS -Wl,--export-dynamic"
+    else
+    	DSO_PIC_CFLAGS='-fPIC -DPIC'
+    	DSO_LDOPTS='-shared'
+    fi
+    # This will fail on a.out systems prior to 1.5.1_ALPHA.
+    if test "$LIBRUNPATH"; then
+	DSO_LDOPTS="-Wl,-R$LIBRUNPATH $DSO_LDOPTS"
+    fi
+    ;;
+
+*-openbsd*)
+    DSO_PIC_CFLAGS='-fPIC'
+    DSO_LDOPTS='-shared -fPIC'
+    if test "$LIBRUNPATH"; then
+	DSO_LDOPTS="-R$LIBRUNPATH $DSO_LDOPTS"
+    fi
+    ;;
+
+*-solaris*)
+    MOZ_FIX_LINK_PATHS="-L${DIST}/bin"
+    ;;
+
+*-wasi*)
+    CXXFLAGS="$CXXFLAGS -mthread-model single"
+    MOZ_FIX_LINK_PATHS=
+    ;;
+
+esac
+
+CFLAGS="$CFLAGS $DSO_PIC_CFLAGS"
+CXXFLAGS="$CXXFLAGS $DSO_PIC_CFLAGS"
+
+if test -z "$MOZ_OPTIMIZE_FLAGS"; then
+	MOZ_OPTIMIZE_FLAGS="-O"
+fi
+
+if test -z "$COMPILE_ENVIRONMENT"; then
+    SKIP_COMPILER_CHECKS=1
+    SKIP_LIBRARY_CHECKS=1
+fi
+
+if test -n "$COMPILE_ENVIRONMENT"; then
+    MOZ_COMPILER_OPTS
+fi
+
+if test -z "$SKIP_COMPILER_CHECKS"; then
+dnl Checks for typedefs, structures, and compiler characteristics.
+dnl ========================================================
+AC_C_CONST
+AC_TYPE_MODE_T
+AC_TYPE_OFF_T
+AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_LANG_CPLUSPLUS
+AC_LANG_C
+AC_MSG_CHECKING(for ssize_t)
+AC_CACHE_VAL(ac_cv_type_ssize_t,
+ [AC_TRY_COMPILE([#include <stdio.h>
+                  #include <sys/types.h>],
+                 [ssize_t foo = 0;],
+                 [ac_cv_type_ssize_t=true],
+                 [ac_cv_type_ssize_t=false])])
+if test "$ac_cv_type_ssize_t" = true ; then
+  AC_DEFINE(HAVE_SSIZE_T)
+  AC_MSG_RESULT(yes)
+else
+  AC_MSG_RESULT(no)
+fi
+
+AC_LANG_CPLUSPLUS
+
+MOZ_CXX11
+
+dnl Checks for header files.
+dnl ========================================================
+AC_HEADER_DIRENT
+
+dnl Checks for libraries.
+dnl ========================================================
+AC_CHECK_LIB(c_r, gethostbyname_r)
+
+dnl We don't want to link with libdl even if it's present on OS X, since
+dnl it's not used and not part of the default installation. OS/2 has dlfcn
+dnl in libc.
+dnl We don't want to link against libm or libpthread on Darwin since
+dnl they both are just symlinks to libSystem and explicitly linking
+dnl against libSystem causes issues when debugging (see bug 299601).
+case $target in
+*-darwin*)
+    ;;
+*)
+    AC_SEARCH_LIBS(dlopen, dl,
+        MOZ_CHECK_HEADER(dlfcn.h,
+        AC_DEFINE(HAVE_DLOPEN)))
+    ;;
+esac
+
+_SAVE_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -D_GNU_SOURCE"
+AC_CHECK_FUNCS(dladdr)
+CFLAGS="$_SAVE_CFLAGS"
+
+if test ! "$GNU_CXX"; then
+    AC_CHECK_LIB(C, demangle)
+fi
+
+AC_CHECK_LIB(socket, socket)
+
+dnl ========================================================
+dnl = pthread support
+dnl = Start by checking whether the system support pthreads
+dnl ========================================================
+case "$target_os" in
+darwin*)
+    USE_PTHREADS=1
+    ;;
+*)
+    AC_CHECK_LIB(pthreads, pthread_create,
+        USE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthreads",
+        AC_CHECK_LIB(pthread, pthread_create,
+            USE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthread",
+            AC_CHECK_LIB(c_r, pthread_create,
+                USE_PTHREADS=1 _PTHREAD_LDFLAGS="-lc_r",
+                AC_CHECK_LIB(c, pthread_create,
+                    USE_PTHREADS=1
+                )
+            )
+        )
+    )
+    ;;
+esac
+
+dnl ========================================================
+dnl Do the platform specific pthread hackery
+dnl ========================================================
+if test "$USE_PTHREADS"x != x
+then
+	dnl
+	dnl See if -pthread is supported.
+	dnl
+	rm -f conftest*
+	ac_cv_have_dash_pthread=no
+	AC_MSG_CHECKING(whether ${CC-cc} accepts -pthread)
+	echo 'int main() { return 0; }' | cat > conftest.c
+	${CC-cc} -pthread -o conftest conftest.c > conftest.out 2>&1
+	if test $? -eq 0; then
+		if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthread`" -a -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
+			ac_cv_have_dash_pthread=yes
+	        case "$target_os" in
+	        freebsd*)
+# Freebsd doesn't use -pthread for compiles, it uses them for linking
+                ;;
+	        *)
+			    CFLAGS="$CFLAGS -pthread"
+			    CXXFLAGS="$CXXFLAGS -pthread"
+                ;;
+	        esac
+		fi
+	fi
+	rm -f conftest*
+    AC_MSG_RESULT($ac_cv_have_dash_pthread)
+
+	dnl
+	dnl See if -pthreads is supported.
+	dnl
+    ac_cv_have_dash_pthreads=no
+    if test "$ac_cv_have_dash_pthread" = "no"; then
+	    AC_MSG_CHECKING(whether ${CC-cc} accepts -pthreads)
+    	echo 'int main() { return 0; }' | cat > conftest.c
+	    ${CC-cc} -pthreads -o conftest conftest.c > conftest.out 2>&1
+    	if test $? -eq 0; then
+	    	if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthreads`" -a -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
+			    ac_cv_have_dash_pthreads=yes
+			    CFLAGS="$CFLAGS -pthreads"
+			    CXXFLAGS="$CXXFLAGS -pthreads"
+		    fi
+	    fi
+	    rm -f conftest*
+    	AC_MSG_RESULT($ac_cv_have_dash_pthreads)
+    fi
+
+	case "$target" in
+	    *-*-freebsd*)
+			AC_DEFINE(_REENTRANT)
+			AC_DEFINE(_THREAD_SAFE)
+			dnl -pthread links in -lpthread, so don't specify it explicitly.
+			if test "$ac_cv_have_dash_pthread" = "yes"; then
+				_PTHREAD_LDFLAGS="-pthread"
+			fi
+			;;
+
+	    *-*-openbsd*|*-*-bsdi*)
+			AC_DEFINE(_REENTRANT)
+			AC_DEFINE(_THREAD_SAFE)
+			dnl -pthread links in -lc_r, so don't specify it explicitly.
+			if test "$ac_cv_have_dash_pthread" = "yes"; then
+                _PTHREAD_LDFLAGS="-pthread"
+			fi
+			;;
+
+	    *-*-linux*|*-*-kfreebsd*-gnu|*-*-gnu*)
+			AC_DEFINE(_REENTRANT)
+			;;
+
+	esac
+    LDFLAGS="${_PTHREAD_LDFLAGS} ${LDFLAGS}"
+fi
+
+
+dnl Checks for library functions.
+dnl ========================================================
+
+dnl check for clock_gettime(), the CLOCK_MONOTONIC clock
+AC_CACHE_CHECK(for clock_gettime(CLOCK_MONOTONIC),
+               ac_cv_clock_monotonic,
+               [for libs in "" -lrt; do
+                    _SAVE_LIBS="$LIBS"
+                    LIBS="$LIBS $libs"
+dnl clock_gettime is available on OSX since 10.12, so depending on MACOSX_DEPLOYMENT_TARGET,
+dnl we should or not be able to use it. To detect if we can, we need to make the
+dnl availability attribute strict, so that compilation fails when the target is < 10.12.
+                    AC_TRY_LINK([#define availability(os, ...) availability(os, strict, __VA_ARGS)
+                                 #include <time.h>],
+                                 [ struct timespec ts;
+                                   clock_gettime(CLOCK_MONOTONIC, &ts); ],
+                                 ac_cv_clock_monotonic=$libs
+                                 LIBS="$_SAVE_LIBS"
+                                 break,
+                                 ac_cv_clock_monotonic=no)
+                    LIBS="$_SAVE_LIBS"
+                done])
+if test "$ac_cv_clock_monotonic" != "no"; then
+    HAVE_CLOCK_MONOTONIC=1
+    REALTIME_LIBS=$ac_cv_clock_monotonic
+    AC_DEFINE(HAVE_CLOCK_MONOTONIC)
+    AC_SUBST(HAVE_CLOCK_MONOTONIC)
+    AC_SUBST_LIST(REALTIME_LIBS)
+fi
+
+dnl Checks for math functions.
+dnl ========================================================
+AC_CHECK_LIB(m, sin)
+
+AC_CACHE_CHECK(
+    [for res_ninit()],
+    ac_cv_func_res_ninit,
+    [if test "$OS_TARGET" = NetBSD -o "$OS_TARGET" = OpenBSD; then
+        dnl no need for res_ninit() on NetBSD and OpenBSD
+        ac_cv_func_res_ninit=no
+     else
+       AC_TRY_LINK([
+            #ifdef linux
+            #define _BSD_SOURCE 1
+            #endif
+            #include <sys/types.h>
+            #include <netinet/in.h>
+            #include <arpa/nameser.h>
+            #include <resolv.h>
+            ],
+            [int foo = res_ninit(&_res);],
+            [ac_cv_func_res_ninit=yes],
+            [ac_cv_func_res_ninit=no])
+     fi
+    ])
+
+if test "$ac_cv_func_res_ninit" = "yes"; then
+    AC_DEFINE(HAVE_RES_NINIT)
+dnl must add the link line we do something as foolish as this... dougt
+dnl else
+dnl    AC_CHECK_LIB(bind, res_ninit, AC_DEFINE(HAVE_RES_NINIT),
+dnl        AC_CHECK_LIB(resolv, res_ninit, AC_DEFINE(HAVE_RES_NINIT)))
+fi
+
+AM_LANGINFO_CODESET
+
+AC_LANG_C
+
+dnl ===================================================================
+dnl ========================================================
+dnl Put your C++ language/feature checks below
+dnl ========================================================
+AC_LANG_CPLUSPLUS
+
+ARM_ABI_PREFIX=
+if test "$GNU_CC"; then
+  if test "$CPU_ARCH" = "arm" ; then
+    AC_CACHE_CHECK(for ARM EABI,
+        ac_cv_gcc_arm_eabi,
+        [AC_TRY_COMPILE([],
+                        [
+#if defined(__ARM_EABI__)
+  return 0;
+#else
+#error Not ARM EABI.
+#endif
+                        ],
+                        ac_cv_gcc_arm_eabi="yes",
+                        ac_cv_gcc_arm_eabi="no")])
+    if test "$ac_cv_gcc_arm_eabi" = "yes"; then
+        HAVE_ARM_EABI=1
+        ARM_ABI_PREFIX=eabi-
+    else
+        ARM_ABI_PREFIX=oabi-
+    fi
+  fi
+
+  TARGET_COMPILER_ABI="${TARGET_COMPILER_ABI-${ARM_ABI_PREFIX}gcc3}"
+fi
+
+# try harder, when checking for __thread support, see bug 521750 comment #33 and below
+# We pass MOZ_OPTIMIZE_LDFLAGS to the linker because if dead_strip is
+# enabled, the linker in xcode 4.1 will crash. Without this it would crash when
+# linking XUL.
+_SAVE_LDFLAGS=$LDFLAGS
+LDFLAGS="$LDFLAGS $DSO_LDOPTS $MOZ_OPTIMIZE_LDFLAGS"
+AC_CACHE_CHECK(for __thread keyword for TLS variables,
+               ac_cv_thread_keyword,
+               [AC_TRY_LINK([__thread bool tlsIsMainThread = false;],
+                            [return tlsIsMainThread;],
+                            ac_cv_thread_keyword=yes,
+                            ac_cv_thread_keyword=no)])
+LDFLAGS=$_SAVE_LDFLAGS
+if test "$ac_cv_thread_keyword" = yes; then
+  # mips builds fail with TLS variables because of a binutils bug.
+  # See bug 528687
+  case "${target}" in
+    mips*-*)
+      :
+      ;;
+    *-android*|*-linuxandroid*)
+      :
+      ;;
+    *)
+      AC_DEFINE(HAVE_THREAD_TLS_KEYWORD)
+      ;;
+  esac
+fi
+
+dnl End of C++ language/feature checks
+AC_LANG_C
+
+fi # ! SKIP_COMPILER_CHECKS
+
+TARGET_XPCOM_ABI=
+if test -n "${CPU_ARCH}" -a -n "${TARGET_COMPILER_ABI}"; then
+    TARGET_XPCOM_ABI="${CPU_ARCH}-${TARGET_COMPILER_ABI}"
+fi
+
+dnl We can't run TRY_COMPILE tests on Windows, so hard-code some
+dnl features that Windows actually does support.
+
+if test -n "$SKIP_COMPILER_CHECKS"; then
+   dnl Windows has malloc.h
+   AC_DEFINE(MALLOC_H, [<malloc.h>])
+   AC_DEFINE(HAVE_FORCEINLINE)
+fi # SKIP_COMPILER_CHECKS
+
+dnl Mozilla specific options
+dnl ========================================================
+dnl The macros used for command line options
+dnl are defined in build/autoconf/altoptions.m4.
+
+dnl ========================================================
+dnl = Enable code optimization. ON by default.
+dnl ========================================================
+
+# Use value from moz.configure if one is defined. Else use our computed
+# value.
+if test -n "${MOZ_CONFIGURE_OPTIMIZE_FLAGS}"; then
+    MOZ_OPTIMIZE_FLAGS=${MOZ_CONFIGURE_OPTIMIZE_FLAGS}
+fi
+
+if test "$COMPILE_ENVIRONMENT"; then
+if test -n "$MOZ_OPTIMIZE"; then
+    AC_MSG_CHECKING([for valid optimization flags])
+    _SAVE_CFLAGS=$CFLAGS
+    CFLAGS="$CFLAGS $MOZ_OPTIMIZE_FLAGS"
+    AC_TRY_COMPILE([#include <stdio.h>],
+        [printf("Hello World\n");],
+        _results=yes,
+        _results=no)
+    AC_MSG_RESULT([$_results])
+    if test "$_results" = "no"; then
+        AC_MSG_ERROR([These compiler flags are invalid: $MOZ_OPTIMIZE_FLAGS])
+    fi
+    CFLAGS=$_SAVE_CFLAGS
+    if test -n "$MOZ_LTO" -a -n "$CLANG_CC"; then
+        # When using llvm-based LTO, non numeric optimization levels are
+        # not supported by the linker, so force the linker to use -O2 (
+        # which doesn't influence the level compilation units are actually
+        # compiled at).
+        case " $MOZ_OPTIMIZE_FLAGS " in
+        *\ -Os\ *|*\ -Oz\ *)
+            MOZ_OPTIMIZE_LDFLAGS="$MOZ_OPTIMIZE_LDFLAGS -O2"
+            ;;
+        esac
+    fi
+fi
+fi # COMPILE_ENVIRONMENT
+
+AC_SUBST_LIST(MOZ_OPTIMIZE_FLAGS)
+AC_SUBST_LIST(MOZ_OPTIMIZE_LDFLAGS)
+AC_SUBST_LIST(MOZ_PGO_OPTIMIZE_FLAGS)
+
+dnl ========================================================
+dnl = Enable jemalloc
+dnl ========================================================
+
+if test "$JS_STANDALONE" -a -z "$MOZ_MEMORY"; then
+  MOZ_GLUE_IN_PROGRAM=
+else
+  case "${OS_TARGET}" in
+  Android|WINNT|Darwin)
+    MOZ_GLUE_IN_PROGRAM=
+    ;;
+  *)
+    dnl On !Android !Windows !OSX, we only want to link executables against mozglue
+    MOZ_GLUE_IN_PROGRAM=1
+    AC_DEFINE(MOZ_GLUE_IN_PROGRAM)
+    ;;
+  esac
+fi
+
+if test "$MOZ_MEMORY"; then
+  dnl The generic feature tests that determine how to compute ncpus are long and
+  dnl complicated.  Therefore, simply define special cpp variables for the
+  dnl platforms we have special knowledge of.
+  case "${target}" in
+  *-mingw*)
+    export MOZ_NO_DEBUG_RTL=1
+    ;;
+  esac
+fi
+AC_SUBST(MOZ_GLUE_IN_PROGRAM)
+
+dnl ========================================================
+dnl instruments
+dnl ========================================================
+if test -n "$MOZ_INSTRUMENTS"; then
+    LIBS="$LIBS -framework CoreFoundation"
+fi
+
+dnl ========================================================
+dnl = Enable using the clang plugin to build
+dnl ========================================================
+
+if test -n "$COMPILE_ENVIRONMENT"; then
+MOZ_CONFIG_CLANG_PLUGIN
+fi # COMPILE_ENVIRONMENT
+
+if test -z "$SKIP_COMPILER_CHECKS"; then
+
+dnl ========================================================
+dnl Check for gcc -pipe support
+dnl ========================================================
+AC_MSG_CHECKING([for -pipe support])
+if test -n "$GNU_CC" -a -n "$GNU_CXX"; then
+    dnl Any gcc that supports firefox supports -pipe.
+    CFLAGS="$CFLAGS -pipe"
+    CXXFLAGS="$CXXFLAGS -pipe"
+    AC_MSG_RESULT([yes])
+else
+    AC_MSG_RESULT([no])
+fi
+
+fi # ! SKIP_COMPILER_CHECKS
+
+MOZ_EXPAND_LIBS
+
+dnl ========================================================
+dnl =
+dnl = Maintainer debug option (no --enable equivalent)
+dnl =
+dnl ========================================================
+
+AC_SUBST_LIST(ASFLAGS)
+AC_SUBST_LIST(MOZ_DEBUG_LDFLAGS)
+
+AC_SUBST_LIST(MOZ_FIX_LINK_PATHS)
+
+AC_SUBST(MOZ_POST_PROGRAM_COMMAND)
+
+AC_SUBST(MOZ_APP_DISPLAYNAME)
+
+AC_SUBST(MOZ_PKG_SPECIAL)
+
+dnl Echo the CFLAGS to remove extra whitespace.
+CFLAGS=`echo \
+	$_COMPILATION_CFLAGS \
+	$CFLAGS`
+
+CXXFLAGS=`echo \
+	$_COMPILATION_CXXFLAGS \
+	$CXXFLAGS`
+
+COMPILE_CFLAGS=`echo \
+    $_DEFINES_CFLAGS \
+    $COMPILE_CFLAGS`
+
+COMPILE_CXXFLAGS=`echo \
+    $_DEFINES_CXXFLAGS \
+    $COMPILE_CXXFLAGS`
+
+HOST_CFLAGS=`echo \
+    $_COMPILATION_HOST_CFLAGS \
+    $HOST_CFLAGS`
+
+HOST_CXXFLAGS=`echo \
+    $_COMPILATION_HOST_CXXFLAGS \
+    $HOST_CXXFLAGS`
+
+OS_CFLAGS="$CFLAGS"
+OS_CXXFLAGS="$CXXFLAGS"
+OS_CPPFLAGS="$CPPFLAGS"
+OS_COMPILE_CFLAGS="$COMPILE_CFLAGS"
+OS_COMPILE_CXXFLAGS="$COMPILE_CXXFLAGS"
+OS_LDFLAGS="$LDFLAGS"
+OS_LIBS="$LIBS"
+AC_SUBST_LIST(OS_CFLAGS)
+AC_SUBST_LIST(OS_CXXFLAGS)
+AC_SUBST_LIST(OS_CPPFLAGS)
+AC_SUBST_LIST(OS_COMPILE_CFLAGS)
+AC_SUBST_LIST(OS_COMPILE_CXXFLAGS)
+AC_SUBST_LIST(OS_LDFLAGS)
+AC_SUBST(OS_LIBS)
+
+AC_SUBST(HOST_CC)
+AC_SUBST(HOST_CXX)
+AC_SUBST_LIST(HOST_CFLAGS)
+AC_SUBST_LIST(HOST_CPPFLAGS)
+AC_SUBST_LIST(HOST_CXXFLAGS)
+AC_SUBST(HOST_LDFLAGS)
+AC_SUBST_LIST(HOST_OPTIMIZE_FLAGS)
+AC_SUBST(HOST_BIN_SUFFIX)
+
+AC_SUBST(TARGET_XPCOM_ABI)
+
+AC_SUBST(DSO_LDOPTS)
+AC_SUBST(BIN_SUFFIX)
+AC_SUBST(USE_N32)
+AC_SUBST(WIN32_CONSOLE_EXE_LDFLAGS)
+AC_SUBST(WIN32_GUI_EXE_LDFLAGS)
+
+dnl Set various defines and substitutions
+dnl ========================================================
+
+AC_SUBST(MOZ_DEV_EDITION)
+if test -n "$MOZ_DEV_EDITION"; then
+    AC_DEFINE(MOZ_DEV_EDITION)
+fi
+
+dnl ========================================================
+dnl JavaScript shell
+dnl ========================================================
+
+MOZ_CHECK_ALLOCATOR
+
+if test -n "$JS_STANDALONE"; then
+JS_LIBRARY_NAME="mozjs-$MOZILLA_SYMBOLVERSION"
+else
+JS_LIBRARY_NAME="mozjs"
+fi
+JS_CONFIG_LIBS="$NSPR_LIBS $LIBS"
+if test -n "$GNU_CC"; then
+JS_CONFIG_MOZ_JS_LIBS='-L${libdir} -l${JS_LIBRARY_NAME}'
+else
+JS_CONFIG_MOZ_JS_LIBS='${libdir}/${JS_LIBRARY_NAME}.lib'
+fi
+AC_SUBST(JS_LIBRARY_NAME)
+AC_SUBST(JS_CONFIG_MOZ_JS_LIBS)
+AC_SUBST(JS_CONFIG_LIBS)
+
+# Avoid using obsolete NSPR features
+AC_DEFINE(NO_NSPR_10_SUPPORT)
+
+dnl Spit out some output
+dnl ========================================================
+MOZ_CREATE_CONFIG_STATUS()
+
+rm -fr confdefs* $ac_clean_files