diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.in b/configure.in index c9c92d75..1d36d35d 100644 --- a/configure.in +++ b/configure.in @@ -463,6 +463,20 @@ AC_CHECK_HEADERS(signal.h strings.h string.h syslog.h uio.h errno.h regex.h sys/ AC_CHECK_HEADERS(features.h stdarg.h sys/unistd.h ctype.h stdlib.h) AC_CHECK_HEADERS(limits.h sys/param.h sys/mount.h sys/vfs.h sys/fs/s5param.h sys/filsys.h fcntl.h sys/statfs.h sys/dustat.h sys/statvfs.h) +# glibc 2.3.2 stdlib.h does not define HUGE_VAL (see man strtod) +AC_MSG_CHECKING([for HUGE_VAL in <stdlib.h>]) +AC_TRY_COMPILE([#include <stdlib.h>], + [double x = HUGE_VAL;], + [AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no) + AC_MSG_CHECKING([for HUGE_VAL in <math.h>]) + AC_TRY_COMPILE([#include <math.h>], + [double x = HUGE_VAL;], + [AC_MSG_RESULT(yes) + AC_DEFINE_UNQUOTED(HUGE_VAL_NEEDS_MATH_H, 1, + [Define if <math.h> is required for HUGE_VAL])], + [AC_MSG_RESULT(no)])]) + # Define HAVE_INTTYPES_H if <inttypes.h> exists, # doesn't clash with <sys/types.h>, and declares uintmax_t. |