$NetBSD: patch-gnats_configure,v 1.2 2013/12/01 23:27:11 bsiegert Exp $

Fix detection of unsetenv on MirBSD.
--- gnats/configure.orig	Sun Mar  6 20:38:26 2005
+++ gnats/configure
@@ -4005,12 +4005,12 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
+const char *foo(const char *x) { return x; }
+int bar(const char *x) { return x == foo(x); }
 
 int
 main ()
 {
-const char *foo(const char *x) { return x; }
-                int bar(const char *x) { return x == foo(x); }
   ;
   return 0;
 }
@@ -4979,7 +4979,7 @@ cat >>conftest.$ac_ext <<_ACEOF
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "\<unsetenv\>" >/dev/null 2>&1; then
+  $EGREP "unsetenv" >/dev/null 2>&1; then
 
 cat >>confdefs.h <<\_ACEOF
 #define HAVE_DECL_UNSETENV 1