1 files changed, 114 insertions, 0 deletions
diff --git a/third_party/heimdal/cf/check-compile-et.m4 b/third_party/heimdal/cf/check-compile-et.m4
new file mode 100644
index 0000000..e580cbb
--- /dev/null
+++ b/third_party/heimdal/cf/check-compile-et.m4
@@ -0,0 +1,114 @@
+dnl $Id$
+dnl
+dnl CHECK_COMPILE_ET
+AC_DEFUN([CHECK_COMPILE_ET], [
+
+AC_CHECK_PROG(COMPILE_ET, compile_et, [compile_et], [no])
+
+krb_cv_compile_et="no"
+krb_cv_com_err_need_r=""
+krb_cv_compile_et_cross=no
+if test "${COMPILE_ET}" != "no"; then
+
+dnl We have compile_et.  Now let's see if it supports `prefix' and `index'.
+AC_MSG_CHECKING(whether compile_et has the features we need)
+cat > conftest_et.et <<'EOF'
+error_table test conf
+prefix CONFTEST
+index 1
+error_code CODE1, "CODE1"
+index 128
+error_code CODE2, "CODE2"
+end
+EOF
+if ${COMPILE_ET} conftest_et.et >/dev/null 2>&1; then
+  dnl XXX Some systems have <et/com_err.h>.
+  save_CPPFLAGS="${CPPFLAGS}"
+  if test -d "/usr/include/et"; then
+    CPPFLAGS="-I/usr/include/et ${CPPFLAGS}"
+  fi
+  dnl Check that the `prefix' and `index' directives were honored.
+  AC_LANG(C)
+  AC_RUN_IFELSE([AC_LANG_SOURCE([
+#include <com_err.h>
+#include <string.h>
+#include "conftest_et.h"
+int main(int argc, char **argv){
+#ifndef ERROR_TABLE_BASE_conf
+#error compile_et does not handle error_table N M
+#endif
+return (CONFTEST_CODE2 - CONFTEST_CODE1) != 127;}
+  ])], [krb_cv_compile_et="yes"],[CPPFLAGS="${save_CPPFLAGS}"],
+  [krb_cv_compile_et="yes" krb_cv_compile_et_cross=yes] )
+fi
+AC_MSG_RESULT(${krb_cv_compile_et})
+if test "${krb_cv_compile_et}" = "yes" -a "${krb_cv_compile_et_cross}" = no; then
+  AC_MSG_CHECKING([for if com_err generates a initialize_conf_error_table_r])
+  AC_EGREP_CPP([initialize_conf_error_table_r.*struct et_list],
+     [#include "conftest_et.h"],
+     [krb_cv_com_err_need_r="ok"])
+  if test X"$krb_cv_com_err_need_r" = X ; then
+    AC_MSG_RESULT(no)
+    krb_cv_compile_et=no
+  else
+    AC_MSG_RESULT(yes)
+  fi
+fi
+rm -fr conftest*
+fi
+
+if test "${krb_cv_compile_et_cross}" = yes ; then
+  krb_cv_com_err="cross"
+elif test "${krb_cv_compile_et}" = "yes"; then
+  dnl Since compile_et seems to work, let's check libcom_err
+  krb_cv_save_LIBS="${LIBS}"
+  LIBS="${LIBS} -lcom_err"
+  AC_MSG_CHECKING(for com_err)
+  AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <com_err.h>]],[[
+    const char *p;
+    p = error_message(0);
+    initialize_error_table_r(0,0,0,0);
+    com_right_r(0, 0, 0, 0);
+  ]])],[krb_cv_com_err="yes"],[krb_cv_com_err="no"; CPPFLAGS="${save_CPPFLAGS}"])
+  AC_MSG_RESULT(${krb_cv_com_err})
+  LIBS="${krb_cv_save_LIBS}"
+else
+  dnl Since compile_et doesn't work, forget about libcom_err
+  krb_cv_com_err="no"
+fi
+
+dnl Only use the system's com_err if we found compile_et, libcom_err, and
+dnl com_err.h.
+if test "${krb_cv_com_err}" = "yes"; then
+    DIR_com_err=""
+    LIB_com_err="-lcom_err"
+    LIB_com_err_a=""
+    LIB_com_err_so=""
+    AC_MSG_NOTICE(Using the already-installed com_err)
+    COMPILE_ET="${ac_cv_prog_COMPILE_ET}"
+    localcomerr=no
+elif test "${krb_cv_com_err}" = "cross"; then
+    DIR_com_err="com_err"
+    LIB_com_err="\$(top_builddir)/lib/com_err/libcom_err.la"
+    LIB_com_err_a="\$(top_builddir)/lib/com_err/.libs/libcom_err.a"
+    LIB_com_err_so="\$(top_builddir)/lib/com_err/.libs/libcom_err.so"
+    AC_MSG_NOTICE(Using our own com_err with toolchain compile_et)
+    COMPILE_ET="${ac_cv_prog_COMPILE_ET}"
+    localcomerr=yes
+else
+    COMPILE_ET="\$(top_builddir)/lib/com_err/compile_et"
+    DIR_com_err="com_err"
+    LIB_com_err="\$(top_builddir)/lib/com_err/libcom_err.la"
+    LIB_com_err_a="\$(top_builddir)/lib/com_err/.libs/libcom_err.a"
+    LIB_com_err_so="\$(top_builddir)/lib/com_err/.libs/libcom_err.so"
+    AC_MSG_NOTICE(Using our own com_err)
+    localcomerr=yes
+fi
+AM_CONDITIONAL(COM_ERR, test "$localcomerr" = yes)dnl
+AC_SUBST(COMPILE_ET)
+AC_SUBST(DIR_com_err)
+AC_SUBST(LIB_com_err)
+AC_SUBST(LIB_com_err_a)
+AC_SUBST(LIB_com_err_so)
+
+])