summaryrefslogtreecommitdiff
path: root/aclocal.m4
diff options
context:
space:
mode:
authorMaria Matejka <mq@ucw.cz>2022-05-30 16:48:17 +0200
committerMaria Matejka <mq@ucw.cz>2022-05-30 16:48:17 +0200
commitb7e2edd4419fecb09b8690f8731e172f0c24789c (patch)
tree41c80ab4b0d524ff34e207bf15e8d79191276a2c /aclocal.m4
parentd7bec897ab772cdccce10b296d4efd48d9181297 (diff)
parent1d309c4ce6e95b68c64a8f007f6dd2f1830a5707 (diff)
Merge commit '1d309c4ce6e95b68c64a8f007f6dd2f1830a5707' into haugesund
Diffstat (limited to 'aclocal.m4')
-rw-r--r--aclocal.m426
1 files changed, 26 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4
index 1613d680..58c48791 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,6 +1,32 @@
dnl ** Additional Autoconf tests for BIRD configure script
dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
+AC_DEFUN([BIRD_CHECK_POINTER_ALIGNMENT],
+[
+ AC_CACHE_CHECK(
+ [how pointers are aligned],
+ [bird_cv_pointer_alignment],
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM(
+ [
+ _Static_assert(_Alignof(void *) == 8, "bad");
+ ], []
+ )
+ ],
+ [bird_cv_pointer_alignment=8],
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM(
+ [
+ _Static_assert(_Alignof(void *) == 4, "bad");
+ ], []
+ )
+ ],
+ [bird_cv_pointer_alignment=4],
+ [bird_cv_pointer_alignment=unknown]
+ ))
+ )
+])
+
AC_DEFUN([BIRD_CHECK_THREAD_LOCAL],
[
AC_CACHE_CHECK(