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author | Bruno Haible <bruno@clisp.org> | 2007-07-02 23:28:02 +0000 |
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committer | Bruno Haible <bruno@clisp.org> | 2007-07-02 23:28:02 +0000 |
commit | f0972c2658a5335dd6c55049501effb8f5850ce6 (patch) | |
tree | 84af18ec98d395ce25a6912773e95cf66034fc5d /m4 | |
parent | e05c3e67d762e53fcfe90c921ad111a525896dde (diff) | |
download | gnulib-f0972c2658a5335dd6c55049501effb8f5850ce6.tar.gz |
Ensure that <stdint.h> defines all the *_MAX and *_MIN macros that gnulib's
inttypes.h requires.
Diffstat (limited to 'm4')
-rw-r--r-- | m4/inttypes.m4 | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/m4/inttypes.m4 b/m4/inttypes.m4 index 05f2b2db11..a944659e35 100644 --- a/m4/inttypes.m4 +++ b/m4/inttypes.m4 @@ -1,4 +1,4 @@ -# inttypes.m4 serial 9 +# inttypes.m4 serial 10 dnl Copyright (C) 2006-2007 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -144,6 +144,22 @@ const char *l = /* implicit string concatenation */ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS]) gl_CHECK_NEXT_HEADERS([inttypes.h]) + dnl Ensure that <stdint.h> defines the limit macros, since gnulib's + dnl <inttypes.h> relies on them. This macro is only needed when a + dnl C++ compiler is in use; it has no effect for a C compiler. + dnl Also be careful to define __STDC_LIMIT_MACROS only when gnulib's + dnl <inttypes.h> is going to be created, and to avoid redefinition warnings + dnl if the __STDC_LIMIT_MACROS is already defined through the CPPFLAGS. + AC_DEFINE([__STDC_LIMIT_MACROS_TRIGGER], 1, + [Define to make the limit macros in <stdint.h> visible.]) + AH_VERBATIM([__STDC_LIMIT_MACROS_ZZZ], +[/* Ensure that <stdint.h> defines the limit macros, since gnulib's + <inttypes.h> relies on them. */ +#if defined __cplusplus && !defined __STDC_LIMIT_MACROS && __STDC_LIMIT_MACROS_TRIGGER +# define __STDC_LIMIT_MACROS 1 +#endif +]) + PRIPTR_PREFIX= if test -n "$STDINT_H"; then dnl Using the gnulib <stdint.h>. It always defines intptr_t to 'long'. |