-AC_MSG_CHECKING(number of digits in LONG_MIN (incl. sign))
-AC_CACHE_VAL(blp_int_digits,
- [AC_TRY_RUN([#include <stdio.h>
- #include <limits.h>
- int
- main()
- {
- int len;
- char s[80];
- sprintf(s, "%ld", LONG_MAX);
- len = strlen(s);
- sprintf(s, "%ld", LONG_MIN);
- if(strlen(s)>len) len=strlen(s);
- sprintf(s, "%lu", ULONG_MAX);
- if(strlen(s)>len) len=strlen(s);
- exit(len);
- }
- ],
- eval "blp_int_digits=19",
- eval "blp_int_digits=$?"
- if test "$blp_int_digits" -lt 11; then
- blp_int_digits=11
- fi,
- eval "blp_int_digits=19")
- ])
-AC_DEFINE_UNQUOTED([INT_DIGITS], $blp_int_digits,
- [Number of digits in longest `long' value, including sign.
- This is usually 11, for 32-bit `long's, or 19, for 64-bit
- `long's.])
-AC_MSG_RESULT($blp_int_digits) ])dnl
+ m4_define([pspp_cv_name], [pspp_cv_[]m4_translit([$1], [-], [_])])dnl
+ AC_CACHE_CHECK([whether $CC accepts $1], [pspp_cv_name],
+ [pspp_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $1"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,)], [pspp_cv_name[]=yes], [pspp_cv_name[]=no])
+ CFLAGS="$pspp_save_CFLAGS"])
+ if test $pspp_cv_name = yes; then
+ CFLAGS="$CFLAGS $1"
+ fi
+])