Replaced the AC_TRY_RUN test for the more simple AC_TRY_COMPILE where we check for defines.

acinclude.m4

@@ -2,14 +2,8 @@ dnl This test is used by the curses driver.
 dnl Checks if $1 defined the ACS_S* preprocessor macros.
 dnl Example: AC_CHECK_DEFINE_ACS(curses.h)
 AC_DEFUN(AC_CHECK_DEFINE_ACS, [
-	AC_MSG_CHECKING(if $1 defines ACS_S*)
-	AC_TRY_RUN([
-		#include <$1>
-		int main() {
-		[[char map[] = { ACS_S9, ACS_S7, ACS_S3, ACS_S1 };]]
-		return 0;
-		}
-	], [ 
+	AC_MSG_CHECKING(if $1 defines ACS_S3 and ACS_S7)
+	AC_TRY_COMPILE([#include <$1>], [[[char map[] = { ACS_S9, ACS_S7, ACS_S3, ACS_S1 }]]], [ 
 	dnl then
 		AC_DEFINE(DEFINED_ACS)
 		AC_MSG_RESULT(yes) ], [

configure.in

@@ -76,26 +76,14 @@ dnl Checking if sys/utsname.h is present and defines SYS_NMLN or _SYS_NAMELEN
 AC_CHECK_HEADER(sys/utsname.h, 
 
 AC_MSG_CHECKING(if sys/utsname.h defines SYS_NMLN)
-AC_TRY_RUN([[
-	#include <sys/utsname.h>
-	int main() {
-	char kver[SYS_NMLN];
-	return 0;
-	}
-]], [ 
+AC_TRY_COMPILE([#include <sys/utsname.h>], [[ char kver[SYS_NMLN] ]], [ 
 dnl then
 	AC_DEFINE(HAVE_SYS_NMLN)
 	AC_MSG_RESULT(yes) ], [
 dnl else
 	AC_MSG_RESULT(no)
 	AC_MSG_CHECKING(if sys/utsname.h defines _SYS_NAMELEN)
-	AC_TRY_RUN([[
-		#include <sys/utsname.h>
-		int main() {
-		char kver[_SYS_NAMELEN];
-		return 0;
-		}
-	]], [ 
+	AC_TRY_COMPILE([#include <sys/utsname.h>],[[ char kver[_SYS_NAMELEN] ]], [ 
 	dnl then
 		AC_DEFINE(HAVE__SYS_NAMELEN)
 		AC_MSG_RESULT(yes) ], [