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include math.h if needed for HUGE_VAL

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git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@710 f882894a-f735-0410-b71e-b25c423dba1c
This commit is contained in:
Karl DeBisschop 2003-09-03 06:00:50 +00:00
parent e36840962a
commit 3d03842549
2 changed files with 18 additions and 0 deletions
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14
configure.in
View file

@ -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.

4
plugins/common.h
View file

@ -40,6 +40,10 @@
#include <stdlib.h>
#include <errno.h>
#ifdef HUGE_VAL_NEEDS_MATH_H
#include <math.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif