diff options
Diffstat (limited to 'macros/gcc-pipe.m4')
| -rw-r--r-- | macros/gcc-pipe.m4 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/macros/gcc-pipe.m4 b/macros/gcc-pipe.m4 new file mode 100644 index 0000000000..dd3a9581d4 --- /dev/null +++ b/macros/gcc-pipe.m4 @@ -0,0 +1,21 @@ +dnl +dnl $Id$ +dnl +dnl Check whether the target compiler accepts -pipe +dnl + +AC_DEFUN(RTEMS_GCC_PIPE, +[AC_REQUIRE([RTEMS_PROG_CC]) +AC_REQUIRE([AC_CANONICAL_HOST]) +AC_CACHE_CHECK(whether $CC accepts --pipe,rtems_cv_gcc_pipe, +[ +rtems_cv_gcc_pipe=no +if test "$ac_cv_prog_gcc" = "yes"; then + echo 'void f(){}' >conftest.c + if test -z "`${CC} --pipe -c conftest.c 2>&1`";then + rtems_cv_gcc_pipe=yes + fi + rm -f conftest* +fi +]) +]) |