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| author | Ralf Corsepius <ralf.corsepius@rtems.org> | 2010-08-03 15:42:44 +0000 |
|---|---|---|
| committer | Ralf Corsepius <ralf.corsepius@rtems.org> | 2010-08-03 15:42:44 +0000 |
| commit | 26c6706cfc87f58fef164d49f623720f848dc980 (patch) | |
| tree | a8288ba467bf1df6d80444db5764530ae2ec860e /cpukit/aclocal | |
| parent | 2010-08-03 Joel Sherrill <joel.sherrilL@OARcorp.com> (diff) | |
| download | rtems-26c6706cfc87f58fef164d49f623720f848dc980.tar.bz2 | |
2010-08-03 Ralf Corsépius <ralf.corsepius@rtems.org>
* aclocal/check-func.m4: New.
Diffstat (limited to 'cpukit/aclocal')
| -rw-r--r-- | cpukit/aclocal/check-func.m4 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/cpukit/aclocal/check-func.m4 b/cpukit/aclocal/check-func.m4 new file mode 100644 index 0000000000..85a019a961 --- /dev/null +++ b/cpukit/aclocal/check-func.m4 @@ -0,0 +1,24 @@ +# $Id$ + +# Check whether FUNCTION is declared in INCLUDES +# and whether rtems_stub_FUNCTION or FUNCTION is supplied. + +# RTEMS_CHECK_FUNC(FUNCTION[,INCLUDES]) +AC_DEFUN([RTEMS_CHECK_FUNC], +[AC_REQUIRE([RTEMS_CHECK_NEWLIB]) +AC_CHECK_DECLS([$1], +[ + AC_CACHE_CHECK([for $1],[ac_cv_$1],[ + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[$2]],[[rtems_stub_$1()]])], + [ac_cv_$1="stub"], + [AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[$2]],[[$1()]])], + [ac_cv_$1="yes"], + [ac_cv_$1="no"]) + ]) + ]) + ]) +AS_IF([test "$ac_cv_$1" = yes], + [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_]$1),[1],[Define to 1 if you have the `$1' function.])]) +]) |