Fix C++ syntax

graphics/GUIlib/distinfo

@@ -1,6 +1,8 @@
-$NetBSD: distinfo,v 1.4 2007/10/10 22:02:20 rillig Exp $
+$NetBSD: distinfo,v 1.5 2011/08/20 15:33:37 joerg Exp $
 
 SHA1 (GUIlib-1.1.0.tar.gz) = 4ba285dc9902c6204663a935ee3d8600cc921cc9
 RMD160 (GUIlib-1.1.0.tar.gz) = aeed496d4d92c0f3a28531fb37def7b69c78109a
 Size (GUIlib-1.1.0.tar.gz) = 180318 bytes
 SHA1 (patch-aa) = d83443dfb9509bc9e63c100fd64b61294eb87f03
+SHA1 (patch-hello.cpp) = 08c5e3387459465c000ae273b4571fc9867a5126
+SHA1 (patch-keyboard.cpp) = 450690b3e915636b10609a52eddd320288bb371e

graphics/GUIlib/patches/patch-hello.cpp

@@ -0,0 +1,13 @@
+$NetBSD: patch-hello.cpp,v 1.1 2011/08/20 15:33:37 joerg Exp $
+
+--- hello.cpp.orig	2000-04-06 04:48:53.000000000 +0000
++++ hello.cpp
+@@ -78,7 +78,7 @@ void Output(SDL_Surface *screen, const c
+ 	}
+ }
+ 
+-main(int argc, char *argv[])
++int main(int argc, char *argv[])
+ {
+ 	SDL_Surface *screen;
+ 	int x, y, i;

graphics/GUIlib/patches/patch-keyboard.cpp

@@ -0,0 +1,13 @@
+$NetBSD: patch-keyboard.cpp,v 1.1 2011/08/20 15:33:37 joerg Exp $
+
+--- keyboard.cpp.orig	2011-08-20 13:29:08.000000000 +0000
++++ keyboard.cpp
+@@ -72,7 +72,7 @@ protected:
+ 	}
+ };
+ 
+-main(int argc, char *argv[])
++int main(int argc, char *argv[])
+ {
+ 	SDL_Surface *screen;
+ 	GUI_TermWin *output;