x11-drivers/xf86-video-geode: Fix -fno-common

Fix the build of x11-drivers/xf86-video-geode when compiled with
-fno-common, which is the default with llvm 11.
While here, add license.

MFH:		2020Q3 (implicit, -fno-common fixes, ok by joenum)

x11-drivers/xf86-video-geode/Makefile

@@ -8,6 +8,9 @@ CATEGORIES=	x11-drivers
 MAINTAINER=	x11@FreeBSD.org
 COMMENT=	X.Org geode display driver
 
+LICENSE=	MIT
+LICENSE_FILE=	${WRKSRC}/COPYING
+
 USES=		xorg-cat:driver
 
 ONLY_FOR_ARCHS=	i386

x11-drivers/xf86-video-geode/files/patch-src_geode.h

@@ -0,0 +1,34 @@
+--- src/geode.h.orig	2020-08-24 18:11:55 UTC
++++ src/geode.h
+@@ -343,7 +343,7 @@ typedef struct _geodeRec {
+ 
+ /* option flags are self-explanatory */
+ #ifdef HAVE_LX
+-enum {
++enum LX_GeodeOpts {
+     LX_OPTION_SW_CURSOR,
+     LX_OPTION_HW_CURSOR,
+     LX_OPTION_NOCOMPRESSION,
+@@ -357,11 +357,11 @@ enum {
+     LX_OPTION_FBSIZE,
+     LX_OPTION_PANEL_MODE,
+     LX_OPTION_DONT_PROGRAM
+-} LX_GeodeOpts;
++};
+ #endif
+ 
+ #ifdef HAVE_GX
+-enum {
++enum GX_GeodeOpts {
+     GX_OPTION_SW_CURSOR,
+     GX_OPTION_HW_CURSOR,
+     GX_OPTION_NOCOMPRESSION,
+@@ -378,7 +378,7 @@ enum {
+     GX_OPTION_FBSIZE,
+     GX_OPTION_PANEL_GEOMETRY,
+     GX_OPTION_DONT_PROGRAM
+-} GX_GeodeOpts;
++};
+ #endif
+ 
+ /* geode_dcon.c */

x11-drivers/xf86-video-geode/files/patch-src_gx__video.c

@@ -0,0 +1,11 @@
+--- src/gx_video.c.orig	2020-08-24 18:14:49 UTC
++++ src/gx_video.c
+@@ -112,7 +112,7 @@ void GXSetVideoPosition(int x, int y, int width, int h
+ 
+ extern void GXAccelSync(ScrnInfoPtr pScrni);
+ 
+-int DeltaX, DeltaY;
++extern int DeltaX, DeltaY;
+ 
+ unsigned long graphics_lut[256];
+ static int lutflag = 0;

x11-drivers/xf86-video-geode/files/patch-src_lx__driver.c

@@ -0,0 +1,11 @@
+--- src/lx_driver.c.orig	2020-08-24 20:15:55 UTC
++++ src/lx_driver.c
+@@ -74,7 +74,7 @@
+ 
+ extern OptionInfoRec LX_GeodeOptions[];
+ 
+-unsigned char *XpressROMPtr;
++extern unsigned char *XpressROMPtr;
+ 
+ static Bool
+ LXSaveScreen(ScreenPtr pScrn, int mode)

x11-drivers/xf86-video-geode/files/patch-src_panel.c

@@ -0,0 +1,11 @@
+--- src/panel.c.orig	2019-09-20 16:17:28 UTC
++++ src/panel.c
+@@ -51,7 +51,7 @@
+ #define PLATFORM_DORADO			1       /* Dorado + 9211 RevC           */
+ #define PLATFORM_GX2BASED		1       /* Redcloud                             */
+ 
+-unsigned char *XpressROMPtr;
++extern unsigned char *XpressROMPtr;
+ 
+ #include "pnl_init.c"
+ #include "pnl_bios.c"

x11-drivers/xf86-video-geode/files/patch-src_panel_panel.c

@@ -0,0 +1,11 @@
+--- src/panel/panel.c.orig	2019-09-20 16:17:28 UTC
++++ src/panel/panel.c
+@@ -65,7 +65,7 @@ extern unsigned long gfx_detect_video(void);
+ #define PLATFORM_DORADO			1       /* Dorado + 9211 RevC */
+ #define PLATFORM_REDCLOUD		1       /* GX2 */
+ 
+-unsigned char *XpressROMPtr;
++extern unsigned char *XpressROMPtr;
+ 
+ #include "pnl_init.c"
+ #include "pnl_bios.c"