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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:22:51 +0000 |
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| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:22:51 +0000 |
| commit | 9ada0093e92388590c7368600ca4e9e3e376f0d0 (patch) | |
| tree | a56fe41110023676d7082028cbaa47ca4b6e6164 /m4/attribute.m4 | |
| parent | Initial commit. (diff) | |
| download | pam-9ada0093e92388590c7368600ca4e9e3e376f0d0.tar.xz pam-9ada0093e92388590c7368600ca4e9e3e376f0d0.zip | |
Adding upstream version 1.5.2.upstream/1.5.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'm4/attribute.m4')
| -rw-r--r-- | m4/attribute.m4 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/m4/attribute.m4 b/m4/attribute.m4 new file mode 100644 index 0000000..3aa2e5f --- /dev/null +++ b/m4/attribute.m4 @@ -0,0 +1,16 @@ +#!/usr/bin/m4 +dnl Check for compiler attributes + +AC_DEFUN([PAM_ATTRIBUTE_UNUSED], [ + AC_CACHE_CHECK([for __attribute__((unused))], [pam_cv_attribute_unused], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[int fun(int i __attribute__((unused)));]], + [[return fun(0);]])], + [pam_cv_attribute_unused=yes], + [pam_cv_attribute_unused=no])]) + AS_IF([test "$pam_cv_attribute_unused" = yes], + [unused='__attribute__((unused))'], + [unused=]) + AC_DEFINE_UNQUOTED([UNUSED], [$unused], + [Define if the compiler supports __attribute__((unused))]) +]) |