From 8d18d5b3f9d96be4120b89ff743856021de84e5b Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 16 Jun 2000 07:44:16 +0000
Subject: 2000-06-16

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@760 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 configure.in | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index 03d8f7980e..6cb2b47b14 100644
--- a/configure.in
+++ b/configure.in
@@ -168,14 +168,29 @@ mingw*)		LIBS="-lwsock32 -lmsvcrt $LIBS"
 		ac_cv_header_sys_select_h=no
 		ac_cv_header_sys_times_h=no;;
 os2_emx*)	LIBS="-lm $LIBS"
-		ac_cv_lib_xpg4_setlocale=no
 		ac_cv_lib_dir_opendir=no;;
+freebsd*)	LIBS="-lm $LIBS"
+		AC_CACHE_CHECK([whether -lxpg4 has to be linked],
+		  rb_cv_lib_xpg4_needed,
+		  [AC_TRY_CPP([
+#include <osreldate.h>
+#if __FreeBSD_version < 400020 || \
+   (__FreeBSD_version >= 500000 && __FreeBSD_version < 500005)
+#error needs libxpg4
+#endif
+		   ],
+		   rb_cv_lib_xpg4_needed=no,
+		   rb_cv_lib_xpg4_needed=yes,
+		   rb_cv_lib_xpg4_needed=yes)])
+		if test "$rb_cv_lib_xpg4_needed" = yes; then
+			AC_CHECK_LIB(xpg4, setlocale)
+		fi
+		;;
 *) LIBS="-lm $LIBS";;
 esac
 AC_CHECK_LIB(crypt, crypt)
 AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
 AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
-AC_CHECK_LIB(xpg4, setlocale)	# FreeBSD needs this
 
 dnl Checks for header files.
 AC_HEADER_DIRENT
-- 
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