Mercurial > hg > octave-lyh > gnulib-hg
changeset 13896:797104221927
stdint: port to GCC 4.3 + OSX + Octave
On this platform, stdint.h is buggy and defines int64_t to long
long int. The replacement defined it to long int, causing
problems with C++ style name mangling. Instead, trust the system
definition if INT64_MAX is defined, and likewise for the unsigned
variant. Problem reported by Jarno Rajahalme in
<http://lists.gnu.org/archive/html/bug-gnulib/2010-04/msg00143.html>.
* lib/stdint.in.h (GL_INT64_T): Define if INT64_MAX is defined,
and don't mess with int64_t and INT64_MAX in this case.
(GL_UINT64_T): Likewise for UINT64_MAX and uint64_t.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Wed, 24 Nov 2010 12:05:43 -0800 |
parents | 71de0fe9e18b |
children | 66a5a281cd30 |
files | ChangeLog lib/stdint.in.h |
diffstat | 2 files changed, 52 insertions(+), 29 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,16 @@ +2010-11-24 Paul Eggert <eggert@cs.ucla.edu> + + stdint: port to GCC 4.3 + OSX + Octave + On this platform, stdint.h is buggy and defines int64_t to long + long int. The replacement defined it to long int, causing + problems with C++ style name mangling. Instead, trust the system + definition if INT64_MAX is defined, and likewise for the unsigned + variant. Problem reported by Jarno Rajahalme in + <http://lists.gnu.org/archive/html/bug-gnulib/2010-04/msg00143.html>. + * lib/stdint.in.h (GL_INT64_T): Define if INT64_MAX is defined, + and don't mess with int64_t and INT64_MAX in this case. + (GL_UINT64_T): Likewise for UINT64_MAX and uint64_t. + 2010-11-24 Bruno Haible <bruno@clisp.org> doc: Corrections regarding MacOS X 10.4 and 10.5.
--- a/lib/stdint.in.h +++ b/lib/stdint.in.h @@ -134,40 +134,53 @@ #define int32_t gl_int32_t #define uint32_t gl_uint32_t +/* If the system defines INT64_MAX, assume int64_t works. That way, + if the underlying platform defines int64_t to be a 64-bit long long + int, the code below won't mistakenly define it to be a 64-bit long + int, which would mess up C++ name mangling. */ + +#if INT64_MAX +# define GL_INT64_T +#else /* Do not undefine int64_t if gnulib is not being used with 64-bit types, since otherwise it breaks platforms like Tandem/NSK. */ -#if LONG_MAX >> 31 >> 31 == 1 -# undef int64_t +# if LONG_MAX >> 31 >> 31 == 1 +# undef int64_t typedef long int gl_int64_t; -# define int64_t gl_int64_t -# define GL_INT64_T -#elif defined _MSC_VER -# undef int64_t +# define int64_t gl_int64_t +# define GL_INT64_T +# elif defined _MSC_VER +# undef int64_t typedef __int64 gl_int64_t; -# define int64_t gl_int64_t -# define GL_INT64_T -#elif @HAVE_LONG_LONG_INT@ -# undef int64_t +# define int64_t gl_int64_t +# define GL_INT64_T +# elif @HAVE_LONG_LONG_INT@ +# undef int64_t typedef long long int gl_int64_t; -# define int64_t gl_int64_t -# define GL_INT64_T +# define int64_t gl_int64_t +# define GL_INT64_T +# endif #endif -#if ULONG_MAX >> 31 >> 31 >> 1 == 1 -# undef uint64_t +#if UINT64_MAX +# define GL_UINT64_T +#else +# if ULONG_MAX >> 31 >> 31 >> 1 == 1 +# undef uint64_t typedef unsigned long int gl_uint64_t; -# define uint64_t gl_uint64_t -# define GL_UINT64_T -#elif defined _MSC_VER -# undef uint64_t +# define uint64_t gl_uint64_t +# define GL_UINT64_T +# elif defined _MSC_VER +# undef uint64_t typedef unsigned __int64 gl_uint64_t; -# define uint64_t gl_uint64_t -# define GL_UINT64_T -#elif @HAVE_UNSIGNED_LONG_LONG_INT@ -# undef uint64_t +# define uint64_t gl_uint64_t +# define GL_UINT64_T +# elif @HAVE_UNSIGNED_LONG_LONG_INT@ +# undef uint64_t typedef unsigned long long int gl_uint64_t; -# define uint64_t gl_uint64_t -# define GL_UINT64_T +# define uint64_t gl_uint64_t +# define GL_UINT64_T +# endif #endif /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */ @@ -312,17 +325,14 @@ #define INT32_MAX 2147483647 #define UINT32_MAX 4294967295U -#undef INT64_MIN -#undef INT64_MAX -#ifdef GL_INT64_T +#if defined GL_INT64_T && ! defined INT64_MAX /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0 evaluates the latter incorrectly in preprocessor expressions. */ # define INT64_MIN (- INTMAX_C (1) << 63) # define INT64_MAX INTMAX_C (9223372036854775807) #endif -#undef UINT64_MAX -#ifdef GL_UINT64_T +#if defined GL_UINT64_T && ! defined UINT64_MAX # define UINT64_MAX UINTMAX_C (18446744073709551615) #endif