diff options
Diffstat (limited to 'lib/autoconf/c.m4')
| -rw-r--r-- | lib/autoconf/c.m4 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/autoconf/c.m4 b/lib/autoconf/c.m4 index a31d2d33..af1e1a71 100644 --- a/lib/autoconf/c.m4 +++ b/lib/autoconf/c.m4 @@ -1536,7 +1536,8 @@ AU_DEFUN([AC_C_CROSS], []) # ------------------ AC_DEFUN([AC_C_CHAR_UNSIGNED], [AH_VERBATIM([__CHAR_UNSIGNED__], -[/* Define to 1 if type `char' is unsigned and you are not using gcc. */ +[/* Define to 1 if type `char' is unsigned and your compiler does not + predefine this macro. */ #ifndef __CHAR_UNSIGNED__ # undef __CHAR_UNSIGNED__ #endif])dnl @@ -1544,7 +1545,7 @@ AC_CACHE_CHECK(whether char is unsigned, ac_cv_c_char_unsigned, [AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT([])], [((char) -1) < 0])], ac_cv_c_char_unsigned=no, ac_cv_c_char_unsigned=yes)]) -if test $ac_cv_c_char_unsigned = yes && test "$GCC" != yes; then +if test $ac_cv_c_char_unsigned = yes; then AC_DEFINE(__CHAR_UNSIGNED__) fi ])# AC_C_CHAR_UNSIGNED |