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Diffstat (limited to 'm4/uintmax_t.m4')
| -rw-r--r-- | m4/uintmax_t.m4 | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/m4/uintmax_t.m4 b/m4/uintmax_t.m4 new file mode 100644 index 0000000..2926bea --- /dev/null +++ b/m4/uintmax_t.m4 @@ -0,0 +1,30 @@ +# uintmax_t.m4 serial 12 +dnl Copyright (C) 1997-2004, 2007-2019 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. + +dnl From Paul Eggert. + +AC_PREREQ([2.13]) + +# Define uintmax_t to 'unsigned long' or 'unsigned long long' +# if it is not already defined in <stdint.h> or <inttypes.h>. + +AC_DEFUN([gl_AC_TYPE_UINTMAX_T], +[ + AC_REQUIRE([gl_AC_HEADER_INTTYPES_H]) + AC_REQUIRE([gl_AC_HEADER_STDINT_H]) + if test $gl_cv_header_inttypes_h = no && test $gl_cv_header_stdint_h = no; then + AC_REQUIRE([AC_TYPE_UNSIGNED_LONG_LONG_INT]) + test $ac_cv_type_unsigned_long_long_int = yes \ + && ac_type='unsigned long long' \ + || ac_type='unsigned long' + AC_DEFINE_UNQUOTED([uintmax_t], [$ac_type], + [Define to unsigned long or unsigned long long + if <stdint.h> and <inttypes.h> don't define.]) + else + AC_DEFINE([HAVE_UINTMAX_T], [1], + [Define if you have the 'uintmax_t' type in <stdint.h> or <inttypes.h>.]) + fi +]) |