diff options
author | Thomas White <taw@physics.org> | 2018-05-17 15:31:45 +0200 |
---|---|---|
committer | Thomas White <taw@physics.org> | 2018-05-17 15:39:22 +0200 |
commit | a9f48b6507b0326a34b84d7600f5eb791993eeb1 (patch) | |
tree | b89b6e73477125336c35c6d7d9996bd8ebae7fd7 /m4/stdalign.m4 | |
parent | 87fd650abf11da75e7abd2ff90821cf7cb041b91 (diff) | |
parent | a9f4c0ff4376267d90d6e8f9a0b6c012ec0588a4 (diff) |
Merge branch 'tom/cmake'
Diffstat (limited to 'm4/stdalign.m4')
-rw-r--r-- | m4/stdalign.m4 | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/m4/stdalign.m4 b/m4/stdalign.m4 deleted file mode 100644 index 9efafe5c..00000000 --- a/m4/stdalign.m4 +++ /dev/null @@ -1,53 +0,0 @@ -# Check for stdalign.h that conforms to C11. - -dnl Copyright 2011-2014 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. - -# Prepare for substituting <stdalign.h> if it is not supported. - -AC_DEFUN([gl_STDALIGN_H], -[ - AC_CACHE_CHECK([for working stdalign.h], - [gl_cv_header_working_stdalign_h], - [AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[#include <stdalign.h> - #include <stddef.h> - - /* Test that alignof yields a result consistent with offsetof. - This catches GCC bug 52023 - <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>. */ - #ifdef __cplusplus - template <class t> struct alignof_helper { char a; t b; }; - # define ao(type) offsetof (alignof_helper<type>, b) - #else - # define ao(type) offsetof (struct { char a; type b; }, b) - #endif - char test_double[ao (double) % _Alignof (double) == 0 ? 1 : -1]; - char test_long[ao (long int) % _Alignof (long int) == 0 ? 1 : -1]; - char test_alignof[alignof (double) == _Alignof (double) ? 1 : -1]; - - /* Test _Alignas only on platforms where gnulib can help. */ - #if \ - ((defined __cplusplus && 201103 <= __cplusplus) \ - || __GNUC__ || __IBMC__ || __IBMCPP__ || __ICC \ - || 0x5110 <= __SUNPRO_C || 1300 <= _MSC_VER) - 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], - [gl_cv_header_working_stdalign_h=no])]) - - if test $gl_cv_header_working_stdalign_h = yes; then - STDALIGN_H='' - else - STDALIGN_H='stdalign.h' - fi - - AC_SUBST([STDALIGN_H]) - AM_CONDITIONAL([GL_GENERATE_STDALIGN_H], [test -n "$STDALIGN_H"]) -]) |