Fix build with -fno-common

svn path=/head/; revision=550681

games/prboom/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	prboom
 PORTVERSION=	2.5.0
-PORTREVISION=	10
+PORTREVISION=	11
 CATEGORIES=	games
 MASTER_SITES=	SF/${PORTNAME}/${PORTNAME}%20stable/${PORTVERSION}
 
@@ -12,9 +12,11 @@ COMMENT=	Multiplayer-capable and modified version of ID's classic DOOM game
 
 LICENSE=	GPLv2
 
-LIB_DEPENDS=	libsmpeg.so:multimedia/smpeg
+LIB_DEPENDS=	libsmpeg.so:multimedia/smpeg \
+		libpng16.so:graphics/png
 
 USES=		gmake sdl
+USE_GL=		gl
 USE_SDL=	mixer net sdl
 
 GNU_CONFIGURE=	yes

games/prboom/files/patch-src_gl__intern.h

@@ -0,0 +1,10 @@
+--- src/gl_intern.h.orig	2008-10-11 12:10:39 UTC
++++ src/gl_intern.h
+@@ -83,6 +83,6 @@ int gld_GetTexDimension(int value);
+ void gld_SetTexturePalette(GLenum target);
+ void gld_Precache(void);
+ 
+-PFNGLCOLORTABLEEXTPROC gld_ColorTableEXT;
++extern PFNGLCOLORTABLEEXTPROC gld_ColorTableEXT;
+ 
+ #endif // _GL_INTERN_H

games/prboom/files/patch-src_gl__main.c

@@ -0,0 +1,11 @@
+--- src/gl_main.c.orig	2008-10-18 13:32:29 UTC
++++ src/gl_main.c
+@@ -83,6 +83,8 @@ int gl_paletted_texture = 0;
+ int gl_shared_texture_palette = 0;
+ int gl_sprite_offset;	// item out of floor offset Mead 8/13/03
+ 
++PFNGLCOLORTABLEEXTPROC gld_ColorTableEXT;
++
+ GLuint gld_DisplayList=0;
+ int fog_density=200;
+ static float extra_red=0.0f;