- AC_REQUIRE([gl_STDINT_H])
- AC_REQUIRE([gt_INTTYPES_PRI])
- AC_CHECK_DECLS_ONCE([imaxabs])
- AC_CHECK_DECLS_ONCE([imaxdiv])
- AC_CHECK_DECLS_ONCE([strtoimax])
- AC_CHECK_DECLS_ONCE([strtoumax])
-
- dnl Now see if we need a substitute <inttypes.h>.
- dnl A complete <inttypes.h> requires
- dnl - a complete <stdint.h>,
- dnl - the existence of an <inttypes.h>,
- dnl - that imaxabs, imaxdiv, strtoimax, strtoumax are declared,
- dnl - some additional tests.
- AC_CACHE_CHECK([whether inttypes.h conforms to C99],
- [gl_cv_header_working_inttypes_h],
- [gl_cv_header_working_inttypes_h=no
- if test "$gl_cv_header_working_stdint_h" = yes \
- && test $ac_cv_header_inttypes_h = yes \
- && test "$ac_cv_have_decl_imaxabs" = yes \
- && test "$ac_cv_have_decl_imaxdiv" = yes \
- && test "$ac_cv_have_decl_strtoimax" = yes \
- && test "$ac_cv_have_decl_strtoumax" = yes; then
- AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([[
-#include <stddef.h>
-#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
-#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
-#define __STDC_FORMAT_MACROS 1 /* to make it work also in C++ mode */
-#define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H /* work if build isn't clean */
-#include <inttypes.h>
-
-/* No need to duplicate the tests of stdint.m4; they are subsumed by
- $gl_cv_header_working_stdint_h = yes. */
-
-/* Tests for macros supposed to be defined in inttypes.h. */