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argmatch: port to C++
[gnulib.git]
/
m4
/
stdalign.m4
diff --git
a/m4/stdalign.m4
b/m4/stdalign.m4
index
3d7993d
..
a866ff6
100644
(file)
--- a/
m4/stdalign.m4
+++ b/
m4/stdalign.m4
@@
-33,8
+33,9
@@
AC_DEFUN([gl_STDALIGN_H],
#if \
(__GNUC__ || __IBMC__ || __IBMCPP__ \
|| 0x5110 <= __SUNPRO_C || 1300 <= _MSC_VER)
#if \
(__GNUC__ || __IBMC__ || __IBMCPP__ \
|| 0x5110 <= __SUNPRO_C || 1300 <= _MSC_VER)
- int alignas (8) alignas_int = 1;
- char test_alignas[_Alignof (alignas_int) == 8 ? 1 : -1];
+ struct alignas_test { char c; char alignas (8) alignas_8; };
+ char test_alignas[offsetof (struct alignas_test, alignas_8) == 8
+ ? 1 : -1];
#endif
]])],
[gl_cv_header_working_stdalign_h=yes],
#endif
]])],
[gl_cv_header_working_stdalign_h=yes],