diff options
Diffstat (limited to 'gl/m4/stdint.m4')
| -rw-r--r-- | gl/m4/stdint.m4 | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/gl/m4/stdint.m4 b/gl/m4/stdint.m4 index 7fe28362fc..dff37fe1bf 100644 --- a/gl/m4/stdint.m4 +++ b/gl/m4/stdint.m4 @@ -1,5 +1,5 @@ -# stdint.m4 serial 36 -dnl Copyright (C) 2001-2010 Free Software Foundation, Inc. +# stdint.m4 serial 40 +dnl Copyright (C) 2001-2011 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. @@ -27,6 +27,15 @@ AC_DEFUN([gl_STDINT_H], fi AC_SUBST([HAVE_UNSIGNED_LONG_LONG_INT]) + dnl Check for <wchar.h>, in the same way as gl_WCHAR_H does. + AC_CHECK_HEADERS_ONCE([wchar.h]) + if test $ac_cv_header_wchar_h = yes; then + HAVE_WCHAR_H=1 + else + HAVE_WCHAR_H=0 + fi + AC_SUBST([HAVE_WCHAR_H]) + dnl Check for <inttypes.h>. dnl AC_INCLUDES_DEFAULT defines $ac_cv_header_inttypes_h. if test $ac_cv_header_inttypes_h = yes; then @@ -145,9 +154,11 @@ uintmax_t j = UINTMAX_MAX; #include <limits.h> /* for CHAR_BIT */ #define TYPE_MINIMUM(t) \ - ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))) + ((t) ((t) 0 < (t) -1 ? (t) 0 : ~ TYPE_MAXIMUM (t))) #define TYPE_MAXIMUM(t) \ - ((t) ((t) 0 < (t) -1 ? (t) -1 : ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)))) + ((t) ((t) 0 < (t) -1 \ + ? (t) -1 \ + : ((((t) 1 << (sizeof (t) * CHAR_BIT - 2)) - 1) * 2 + 1))) struct s { int check_PTRDIFF: PTRDIFF_MIN == TYPE_MINIMUM (ptrdiff_t) @@ -290,14 +301,11 @@ static const char *macro_values[] = fi AC_SUBST([HAVE_SYS_BITYPES_H]) - dnl Check for <wchar.h> (missing in Linux uClibc when built without wide - dnl character support). - AC_CHECK_HEADERS_ONCE([wchar.h]) - gl_STDINT_TYPE_PROPERTIES STDINT_H=stdint.h fi AC_SUBST([STDINT_H]) + AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"]) ]) dnl gl_STDINT_BITSIZEOF(TYPES, INCLUDES) |