+
+# Define the symbol $1 to be 1 if the condition is true, 0 otherwise.
+# If $2 is true, the condition is $3; otherwise if long long int is supported
+# approximate the condition with $4; otherwise, assume the condition is false.
+# The condition should work on all C99 platforms; the approximations should be
+# good enough to work on all practical pre-C99 platforms.
+# $2 is evaluated by the C preprocessor, $3 and $4 as compile-time constants.
+AC_DEFUN([gl_INTTYPES_CHECK_LONG_LONG_INT_CONDITION],
+[
+ AC_CACHE_CHECK([whether $3],
+ [gl_cv_test_$1],
+ [AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[/* Work also in C++ mode. */
+ #define __STDC_LIMIT_MACROS 1
+
+ /* Work if build is not clean. */
+ #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H
+
+ #include <limits.h>
+ #if HAVE_STDINT_H
+ #include <stdint.h>
+ #endif
+
+ #if $2
+ #define CONDITION ($3)
+ #elif HAVE_LONG_LONG_INT
+ #define CONDITION ($4)
+ #else
+ #define CONDITION 0
+ #endif
+ int test[CONDITION ? 1 : -1];]])],
+ [gl_cv_test_$1=yes],
+ [gl_cv_test_$1=no])])
+ if test $gl_cv_test_$1 = yes; then
+ $1=1;
+ else
+ $1=0;
+ fi
+ AC_SUBST([$1])
+])
+
+AC_DEFUN([gl_INTTYPES_MODULE_INDICATOR],
+[
+ dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+ AC_REQUIRE([gl_INTTYPES_H_DEFAULTS])
+ gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+])
+
+AC_DEFUN([gl_INTTYPES_H_DEFAULTS],
+[
+ GNULIB_IMAXABS=0; AC_SUBST([GNULIB_IMAXABS])
+ GNULIB_IMAXDIV=0; AC_SUBST([GNULIB_IMAXDIV])
+ GNULIB_STRTOIMAX=0; AC_SUBST([GNULIB_STRTOIMAX])
+ GNULIB_STRTOUMAX=0; AC_SUBST([GNULIB_STRTOUMAX])
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_DECL_IMAXABS=1; AC_SUBST([HAVE_DECL_IMAXABS])
+ HAVE_DECL_IMAXDIV=1; AC_SUBST([HAVE_DECL_IMAXDIV])
+ HAVE_DECL_STRTOIMAX=1; AC_SUBST([HAVE_DECL_STRTOIMAX])
+ HAVE_DECL_STRTOUMAX=1; AC_SUBST([HAVE_DECL_STRTOUMAX])
+ INT32_MAX_LT_INTMAX_MAX=1; AC_SUBST([INT32_MAX_LT_INTMAX_MAX])
+ INT64_MAX_EQ_LONG_MAX='defined _LP64'; AC_SUBST([INT64_MAX_EQ_LONG_MAX])
+ PRI_MACROS_BROKEN=0; AC_SUBST([PRI_MACROS_BROKEN])
+ PRIPTR_PREFIX=__PRIPTR_PREFIX; AC_SUBST([PRIPTR_PREFIX])
+ UINT32_MAX_LT_UINTMAX_MAX=1; AC_SUBST([UINT32_MAX_LT_UINTMAX_MAX])
+ UINT64_MAX_EQ_ULONG_MAX='defined _LP64'; AC_SUBST([UINT64_MAX_EQ_ULONG_MAX])
+])