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Diffstat (limited to 'gnulib-m4/stdalign.m4')
-rw-r--r--gnulib-m4/stdalign.m413
1 files changed, 6 insertions, 7 deletions
diff --git a/gnulib-m4/stdalign.m4 b/gnulib-m4/stdalign.m4
index c74fe9b..78577cb 100644
--- a/gnulib-m4/stdalign.m4
+++ b/gnulib-m4/stdalign.m4
@@ -1,6 +1,6 @@
# Check for stdalign.h that conforms to C11.
-dnl Copyright 2011-2018 Free Software Foundation, Inc.
+dnl Copyright 2011-2022 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
@@ -13,7 +13,8 @@ AC_DEFUN([gl_STDALIGN_H],
[gl_cv_header_working_stdalign_h],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
- [[#include <stdalign.h>
+ [[#include <stdint.h>
+ #include <stdalign.h>
#include <stddef.h>
/* Test that alignof yields a result consistent with offsetof.
@@ -32,6 +33,7 @@ AC_DEFUN([gl_STDALIGN_H],
/* Test _Alignas only on platforms where gnulib can help. */
#if \
((defined __cplusplus && 201103 <= __cplusplus) \
+ || (__TINYC__ && defined __attribute__) \
|| (defined __APPLE__ && defined __MACH__ \
? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \
: __GNUC__) \
@@ -47,11 +49,8 @@ AC_DEFUN([gl_STDALIGN_H],
[gl_cv_header_working_stdalign_h=no])])
if test $gl_cv_header_working_stdalign_h = yes; then
- STDALIGN_H=''
+ GL_GENERATE_STDALIGN_H=false
else
- STDALIGN_H='stdalign.h'
+ GL_GENERATE_STDALIGN_H=true
fi
-
- AC_SUBST([STDALIGN_H])
- AM_CONDITIONAL([GL_GENERATE_STDALIGN_H], [test -n "$STDALIGN_H"])
])