inttypes_h.m4

来自「linux平台中」· M4 代码 · 共 23 行

#serial 3

dnl From Paul Eggert.

# Define HAVE_INTTYPES_H if <inttypes.h> exists,
# doesn't clash with <sys/types.h>, and declares uintmax_t.

AC_DEFUN(jm_AC_HEADER_INTTYPES_H,
[
  AC_CACHE_CHECK([for inttypes.h], jm_ac_cv_header_inttypes_h,
  [AC_TRY_COMPILE(
    [#include <sys/types.h>
#include <inttypes.h>],
    [uintmax_t i = (uintmax_t) -1;],
    jm_ac_cv_header_inttypes_h=yes,
    jm_ac_cv_header_inttypes_h=no)])
  if test $jm_ac_cv_header_inttypes_h = yes; then
    AC_DEFINE_UNQUOTED(HAVE_INTTYPES_H, 1,
[Define if <inttypes.h> exists, doesn't clash with <sys/types.h>,
   and declares uintmax_t. ])
  fi
])