source: rtems/aclocal/check-newlib.m4 @ 2e0fd427

4.104.114.84.9
Last change on this file since 2e0fd427 was 2e0fd427, checked in by Joel Sherrill <joel.sherrill@…>, on Nov 2, 2000 at 3:44:04 PM

2000-11-02 Ralf Corsepius <corsepiu@…>

  • aclocal/*: Replace with contents of macros/*.m4
  • macros/: Remove.
  • aclocal/ar-s.m4 aclocal/tool-prefix.m4: Remove.
  • Makefile.am: Reflect changes to aclocal/ and macros/.
  • Property mode set to 100644
File size: 935 bytes
Line 
1dnl $Id$
2
3AC_DEFUN(RTEMS_CHECK_NEWLIB,
4[dnl
5AC_REQUIRE([RTEMS_PROG_CC_FOR_TARGET])dnl
6AC_REQUIRE([RTEMS_CANONICALIZE_TOOLS])dnl
7AC_CACHE_CHECK([for newlib],
8  rtems_cv_use_newlib,
9  [
10    rtems_save_CC=$CC
11
12dnl some versions of newlib provide not_required_by_rtems
13    AC_TRY_LINK(
14      [extern void not_required_by_rtems() ;],
15      [not_required_by_rtems()],
16      rtems_cv_use_newlib="yes")
17
18dnl some versions of newlib provide rtems_provides_crt0()
19    if test -z "$rtems_cv_use_newlib"; then
20      AC_TRY_LINK(
21        [extern void rtems_provides_crt0() ;],
22        [rtems_provides_crt0()],
23        rtems_cv_use_newlib="yes",
24        rtems_cv_use_newlib="no")
25    fi
26  CC=$rtems_save_CC])
27RTEMS_USE_NEWLIB="$rtems_cv_use_newlib"
28AC_SUBST(RTEMS_USE_NEWLIB)
29
30if test x"${RTEMS_USE_NEWLIB}" = x"yes";
31then
32  AC_DEFINE_UNQUOTED(RTEMS_NEWLIB,1,[if using newlib])
33  AC_DEFINE_UNQUOTED(MALLOC_PROVIDED,1,[if malloc is provided])
34fi
35])
36
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