diff options
Diffstat (limited to 'source4/build/m4/check_cc.m4')
| -rw-r--r-- | source4/build/m4/check_cc.m4 | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/source4/build/m4/check_cc.m4 b/source4/build/m4/check_cc.m4 index 219dc6ad37..33bb7050af 100644 --- a/source4/build/m4/check_cc.m4 +++ b/source4/build/m4/check_cc.m4 @@ -39,15 +39,11 @@ AC_CACHE_CHECK([that the C compiler can precompile header files],samba_cv_precom dnl Check whether the compiler can generate precompiled headers touch conftest.h if ${CC-cc} conftest.h 2> /dev/null && test -f conftest.h.gch; then - samba_cv_precompiled_headers=yes + precompiled_headers=yes else - samba_cv_precompiled_headers=no + precompiled_headers=no fi]) -PCH_AVAILABLE="#" -if test x"$samba_cv_precompiled_headers" = x"yes"; then - PCH_AVAILABLE="" -fi -AC_SUBST(PCH_AVAILABLE) +AC_SUBST(precompiled_headers) dnl Check if the C compiler understands volatile (it should, being ANSI). @@ -119,23 +115,19 @@ AC_TRY_RUN([#include "${srcdir-.}/build/tests/trivial.c"], # # Check if the compiler support ELF visibility for symbols # -if test x"$GCC" = x"yes" ; then - AX_CFLAGS_GCC_OPTION([-fvisibility=hidden], VISIBILITY_CFLAGS) -fi -if test -n "$VISIBILITY_CFLAGS"; then - OLD_CFLAGS="${CFLAGS}" - CFLAGS="${CFLAGS} ${VISIBILITY_CFLAGS}" - AC_MSG_CHECKING([whether the C compiler supports the visibility attribute]) - AC_TRY_RUN([ +visibility_attribute=no +AC_MSG_CHECKING([whether the C compiler supports the visibility attribute]) +AC_TRY_RUN([ #pragma GCC visibility push(hidden) void vis_foo1(void) {} __attribute__((visibility("default"))) void vis_foo2(void) {} #include "${srcdir-.}/build/tests/trivial.c" -], [AC_MSG_RESULT(yes); -AC_DEFINE(HAVE_VISIBILITY_ATTR,1,[Whether the C compiler supports the visibility attribute])], -[AC_MSG_RESULT(no);VISIBILITY_CFLAGS=""]) - CFLAGS="${OLD_CFLAGS}" -fi +], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_VISIBILITY_ATTR,1,[Whether the C compiler supports the visibility attribute]) + visibility_attribute=yes +], [AC_MSG_RESULT(no);]) +AC_SUBST(visibility_attribute) # # Check if the compiler can handle the options we selected by |