Include <signal.h> when checking for strsignal,

sys_siglist, and friends.  Problem reported by Toney Leneis in
<http://mail.gnu.org/archive/html/bug-coreutils/2004-02/msg00136.html>.

diff --git a/configure.ac b/configure.ac
index 2257149..98ec955 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -225,7 +225,10 @@ if test $jm_cv_sys_tiocgwinsz_needs_termios_h = no && \
 fi
 
 # For src/kill.c.
-AC_CHECK_DECLS([strsignal, strtoimax, sys_siglist, _sys_siglist, __sys_siglist])
+AC_CHECK_DECLS([strtoimax])
+AC_CHECK_DECLS([strsignal, sys_siglist, _sys_siglist, __sys_siglist], , ,
+  [AC_INCLUDES_DEFAULT
+#include <signal.h>])
 
 jm_LIB_CHECK