source: rtems/aclocal/gcc-isystem.m4 @ 87a95526

4.104.114.84.9
Last change on this file since 87a95526 was 87a95526, checked in by Ralf Corsepius <ralf.corsepius@…>, on Jun 12, 2003 at 6:03:24 AM

2003-06-12 Ralf Corsepius <corsepiu@…>

  • configure.ac: Remove "BLEEDING EDGE" warning. Put docs into RTEMS_BUILD_CONFIG_SUBDIRS.
  • acinclude.m4: Add AC_PREREQ(2.57). Major overhaul (PR 412).
  • aclocal/prog-cc.m4: Add RTEMS_GCC_ISYSTEM.
  • aclocal/gcc-isystem.m4: New.
  • Makefile.am: Add aclocal/gcc-isystem.m4.
  • Property mode set to 100644
File size: 479 bytes
Line 
1dnl
2dnl $Id$
3dnl
4dnl Check whether the gcc accepts -isystem
5dnl
6
7AC_DEFUN(RTEMS_GCC_ISYSTEM,
8[AC_REQUIRE([RTEMS_PROG_CC])
9AC_CACHE_CHECK(whether $CC accepts -isystem,rtems_cv_gcc_isystem,
10[
11rtems_cv_gcc_isystem=no
12if test x"$GCC" = x"yes"; then
13cat << EOF > conftest.h
14int conftest123();
15EOF
16cat << EOF > conftest.c
17#include <conftest.h>
18int conftest123() {}
19EOF
20  if test -z "`${CC} -isystem./ -c conftest.c 2>&1`";then
21    rtems_cv_gcc_isystem=yes
22  fi
23fi
24rm -f conftest*
25])])
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