gentoo-overlay/games-emulation/gngb/files/gngb-20060309-gcc10.patch

From 7440e66d07ae04f9276bf6994bcf53f4aa870388 Mon Sep 17 00:00:00 2001
From: "Azamat H. Hackimov" <azamat.hackimov@gmail.com>
Date: Fri, 29 May 2020 20:23:14 +0300
Subject: [PATCH] Fix compilation for GCC10 (-fno-common)

---
 src/emu.c       |  4 ++++
 src/emu.h       |  6 +++---
 src/interrupt.c |  4 ++++
 src/interrupt.h |  6 +++---
 src/menu.c      |  2 ++
 src/menu.h      |  2 +-
 src/message.c   |  2 +-
 src/message.h   |  2 +-
 src/rom.c       |  3 +++
 src/rom.h       |  4 ++--
 src/serial.c    |  4 ++++
 src/serial.h    | 10 ++++++----
 src/sgb.c       |  6 ++++++
 src/sgb.h       |  8 ++++----
 src/sound.c     | 10 ++++++++++
 src/sound.h     | 16 ++++++++--------
 src/video_std.c |  4 ++++
 src/video_std.h |  6 +++---
 src/video_yuv.c |  6 ++++++
 src/video_yuv.h | 12 +++++++-----
 src/vram.c      |  4 ++++
 src/vram.h      |  6 +++---
 22 files changed, 89 insertions(+), 38 deletions(-)

diff --git a/src/emu.c b/src/emu.c
index 91d4b88..cdbde0d 100644
--- a/src/emu.c
+++ b/src/emu.c
@@ -54,6 +54,10 @@ Uint8 jmap[8]={1,1,0,0,3,2,0,1};
 Sint16 *joy_axis;
 Uint8 *joy_but;
 
+GNGB_CONF conf;
+SDL_Joystick *sdl_joy;
+Uint16 key[SDLK_LAST];
+
 /* Configuration File */
 
 #define UINTEGER8  1
diff --git a/src/emu.h b/src/emu.h
index cb83289..bd4e466 100644
--- a/src/emu.h
+++ b/src/emu.h
@@ -64,11 +64,11 @@ typedef struct {
   Sint32 pal[5][4];
 }GNGB_CONF;
 
-GNGB_CONF conf;
+extern GNGB_CONF conf;
 
-SDL_Joystick *sdl_joy;
+extern SDL_Joystick *sdl_joy;
 
-Uint16 key[SDLK_LAST];
+extern Uint16 key[SDLK_LAST];
 extern Sint16 *joy_axis;
 extern Uint8 *joy_but;
 
diff --git a/src/interrupt.c b/src/interrupt.c
index 0a736a2..a18814a 100644
--- a/src/interrupt.c
+++ b/src/interrupt.c
@@ -34,6 +34,10 @@ static const Uint16 lcd_cycle_tab[2][5]={{204,456,80,172,80},              /* GB
 Uint32 nb_cycle=0;
 Uint32 key_cycle=0;
 Uint8 vram_init_pal=0;
+GBLCDC *gblcdc;
+Uint8 vram_pal_line_temp[160][4];
+GBTIMER *gbtimer;
+
 
 Uint32 get_nb_cycle(void)
 {
diff --git a/src/interrupt.h b/src/interrupt.h
index 5dca287..cbec97f 100644
--- a/src/interrupt.h
+++ b/src/interrupt.h
@@ -68,9 +68,9 @@ typedef struct {
   Uint8 *vram_pal_line[160];
 }GBLCDC;
 
-GBLCDC *gblcdc;
+extern GBLCDC *gblcdc;
 
-Uint8 vram_pal_line_temp[160][4];
+extern Uint8 vram_pal_line_temp[160][4];
 extern Uint8 vram_init_pal;
 
 #define gb_set_pal_bck(v) { \
@@ -98,7 +98,7 @@ typedef struct {
   Sint32 cycle;
 }GBTIMER;
 
-GBTIMER *gbtimer;
+extern GBTIMER *gbtimer;
 
 void gblcdc_init(void);
 void gblcdc_reset(void);
diff --git a/src/menu.c b/src/menu.c
index ee3a831..2879dd7 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -45,6 +45,8 @@
 
 int stop_all=0;
 
+MENU *current_menu;
+
 Uint8 radio_group[256];
 SDL_Color buttonpal[]={{255,255,255},{214,214,214},{150,150,150},{0,0,0},{195,195,195}};
 
diff --git a/src/menu.h b/src/menu.h
index bf4d713..160ccac 100644
--- a/src/menu.h
+++ b/src/menu.h
@@ -49,7 +49,7 @@ typedef struct MENU{
 #define DRAW_WHEN_ACTIVE 1
 
 extern MENU main_menu;
-MENU *current_menu;
+extern MENU *current_menu;
 void loop_menu(MENU *m);
 void display_menu(MENU *m);
 
diff --git a/src/message.c b/src/message.c
index af52efc..f409767 100644
--- a/src/message.c
+++ b/src/message.c
@@ -29,7 +29,7 @@
 
 SDL_Surface *fontbuf=NULL;
 
-//int wl,hl,xm,ym;
+int wl,hl,xm,ym;
 static int tempo_mes;
 
 #define BUF_ALPHA 240
diff --git a/src/message.h b/src/message.h
index 534a7a0..d893525 100644
--- a/src/message.h
+++ b/src/message.h
@@ -21,7 +21,7 @@
 
 #include <SDL.h>
 
-int wl,hl,xm,ym;
+extern int wl,hl,xm,ym;
 //extern void (*draw_message)(int x,int y,char *mes);
 extern SDL_Surface *fontbuf;
 
diff --git a/src/rom.c b/src/rom.c
index ff57a45..ba01473 100644
--- a/src/rom.c
+++ b/src/rom.c
@@ -48,9 +48,12 @@
 
 #define FILENAME_LEN 1024
 
+char *rom_name;
 Sint16 rom_type=UNKNOW_TYPE;
 Uint8 rom_gb_type=UNKNOW;
 
+ROM_TIMER *rom_timer;
+
 int check_dir(char *dir_name) {
 #ifdef WIN32
   BOOL res;
diff --git a/src/rom.h b/src/rom.h
index def6e6e..6befec1 100644
--- a/src/rom.h
+++ b/src/rom.h
@@ -37,7 +37,7 @@
 #define SRAM           0x200
 #define HUC1           0x400
 
-char *rom_name;
+extern char *rom_name;
 extern Sint16 rom_type;
 
 //  rom_gb_suport
@@ -52,7 +52,7 @@ typedef struct {
   Uint8 regl[5];   // register locked
 }ROM_TIMER; // MBC3
 
-ROM_TIMER *rom_timer;
+extern ROM_TIMER *rom_timer;
 
 int open_rom(char *filename);
 
diff --git a/src/serial.c b/src/serial.c
index 8d5fbbe..cec41f5 100644
--- a/src/serial.c
+++ b/src/serial.c
@@ -54,6 +54,10 @@
 SDL_Thread *thread;
 int thread_fun(void *data);
 
+serial gbserial;
+Sint16 serial_cycle_todo;
+Sint8 gblisten;
+
 SOCKET dest_socket=-1;
 SOCKET listen_socket=-1;
 
diff --git a/src/serial.h b/src/serial.h
index 888d09b..c253a1f 100644
--- a/src/serial.h
+++ b/src/serial.h
@@ -21,7 +21,7 @@
 
 #include "global.h"
 
-struct {
+typedef struct serial {
   Sint16 cycle_todo;
   Uint16 p;
   Uint8 b;
@@ -29,10 +29,12 @@ struct {
   Uint8 check;
   Uint8 wait;
   Uint8 ready2read;
-}gbserial;
+} serial;
 
-Sint16 serial_cycle_todo;
-Sint8 gblisten;
+extern serial gbserial;
+
+extern Sint16 serial_cycle_todo;
+extern Sint8 gblisten;
 
 void gbserial_init(int server_side,char *servername);
 void gbserial_close(void);
diff --git a/src/sgb.c b/src/sgb.c
index ffdc6e0..9fc7308 100644
--- a/src/sgb.c
+++ b/src/sgb.c
@@ -32,6 +32,12 @@ Uint8 sgb_tiles[256*32];
 Uint8 sgb_map[32*32];
 Uint8 sgb_att[32*32];
 
+Uint16 sgb_pal[4][4];           /* 4 pallete of 4 colour */
+Uint8 sgb_pal_map[20][18];      /* Map of Pallete Tiles */
+Uint8 sgb_mask;
+
+SGB sgb;
+
 SDL_Surface *sgb_buf=NULL;
 
 extern Uint16 Filter[32768];
diff --git a/src/sgb.h b/src/sgb.h
index 71aea6a..fd9b8f9 100644
--- a/src/sgb.h
+++ b/src/sgb.h
@@ -39,12 +39,12 @@ typedef struct {
   Uint8 player;
 }SGB;
 
-SGB sgb;
+extern SGB sgb;
 
-Uint16 sgb_pal[4][4];		/* 4 pallete of 4 colour */
-Uint8 sgb_pal_map[20][18];      /* Map of Pallete Tiles */
+extern Uint16 sgb_pal[4][4];		/* 4 pallete of 4 colour */
+extern Uint8 sgb_pal_map[20][18];      /* Map of Pallete Tiles */
 
-Uint8 sgb_mask;
+extern Uint8 sgb_mask;
 
 extern SDL_Surface *sgb_buf;
 
diff --git a/src/sound.c b/src/sound.c
index ecc6e1f..8b7bce4 100644
--- a/src/sound.c
+++ b/src/sound.c
@@ -32,6 +32,16 @@
 #define HZ_M3(x) ((double)(4194304.0)/(64.0*(double)(2048-x)))
 // #define LOG_SOUND
 
+Uint32 sample_rate;
+Uint8  bit_per_sample;
+Uint16 sample_per_update;
+
+SoundM1 snd_m1;
+SoundM2 snd_m2;
+SoundM3 snd_m3;
+SoundM4 snd_m4;
+SoundG snd_g;
+
 Sint8 *playbuf;
 FILE *fsound;
 /*
diff --git a/src/sound.h b/src/sound.h
index 56f58ce..6ef3bd8 100644
--- a/src/sound.h
+++ b/src/sound.h
@@ -22,9 +22,9 @@
 
 #include "global.h"
 
-Uint32 sample_rate;
-Uint8  bit_per_sample;
-Uint16 sample_per_update;
+extern Uint32 sample_rate;
+extern Uint8  bit_per_sample;
+extern Uint16 sample_per_update;
 
 typedef struct SoundM1
 {
@@ -61,7 +61,7 @@ typedef struct SoundM1
   float sample_env_per_step;
   float cp;
 }SoundM1;
-SoundM1 snd_m1;
+extern SoundM1 snd_m1;
 
 typedef struct SoundM2
 {
@@ -92,7 +92,7 @@ typedef struct SoundM2
   float sample_env_per_step;
   float cp;
 }SoundM2;
-SoundM2 snd_m2;
+extern SoundM2 snd_m2;
 
 typedef struct SoundM3
 {
@@ -120,7 +120,7 @@ typedef struct SoundM3
   Uint16 sample_len; // dur<75>e en samples
   float cp;
 }SoundM3;
-SoundM3 snd_m3;
+extern SoundM3 snd_m3;
 
 typedef struct SoundM4
 {
@@ -149,7 +149,7 @@ typedef struct SoundM4
   float env_per_step;
   float sample_env_per_step;
 }SoundM4;
-SoundM4 snd_m4;
+extern SoundM4 snd_m4;
 
 /* Control general */
 typedef struct SoundG
@@ -177,7 +177,7 @@ typedef struct SoundG
   Uint8 Sound3_On_Off   ;
   Uint8 Sound4_On_Off   ;
 }SoundG;
-SoundG snd_g;
+extern SoundG snd_g;
 
 
 #define LEFT  1
diff --git a/src/video_std.c b/src/video_std.c
index 1a81e90..b894443 100644
--- a/src/video_std.c
+++ b/src/video_std.c
@@ -35,6 +35,10 @@ SDL_Surface *back=NULL;
 Sint8 rb_tab[2][RB_SIZE]={{0,-2,2,-2,2},
 			 {0,-1,-1,1,1}};
 
+Uint8 rb_shift;
+SDL_Rect dstR;
+SDL_Rect scrR;
+
 VIDEO_MODE video_std;
 
 SDL_Rect clip_rct;
diff --git a/src/video_std.h b/src/video_std.h
index 4a78d7e..05a0fd1 100644
--- a/src/video_std.h
+++ b/src/video_std.h
@@ -27,9 +27,9 @@
 extern Sint8 rb_tab[2][RB_SIZE];
 extern SDL_Surface *back;
 
-Uint8 rb_shift;
-SDL_Rect dstR;
-SDL_Rect scrR;
+extern Uint8 rb_shift;
+extern SDL_Rect dstR;
+extern SDL_Rect scrR;
 
 void draw_screen_sgb_std(void);
 void draw_screen_wb_std(void);
diff --git a/src/video_yuv.c b/src/video_yuv.c
index 0c05a81..cba9e0f 100644
--- a/src/video_yuv.c
+++ b/src/video_yuv.c
@@ -25,6 +25,12 @@
 #include "memory.h"
 #include "message.h"
 
+SDL_Overlay *overlay;
+SDL_Rect ov_rect;
+Uint32 yuv_flag;
+yuv rgb2yuv[65536];
+
+
 void init_message_yuv(void) {
 
 }
diff --git a/src/video_yuv.h b/src/video_yuv.h
index c0d7c25..4d85ce9 100644
--- a/src/video_yuv.h
+++ b/src/video_yuv.h
@@ -21,16 +21,18 @@
 
 #include "global.h"
 
-SDL_Overlay *overlay;
-SDL_Rect ov_rect;
-Uint32 yuv_flag;
+extern SDL_Overlay *overlay;
+extern SDL_Rect ov_rect;
+extern Uint32 yuv_flag;
 
-struct yuv{
+typedef struct yuv{
   Uint16 y;
   Uint8  u;
   Uint8  v;
   Uint32 yuy2;
-}rgb2yuv[65536];
+} yuv;
+
+extern yuv rgb2yuv[65536];
 
 void init_message_yuv(void);
 void init_rgb2yuv_table(void);
diff --git a/src/vram.c b/src/vram.c
index 206b625..8a333be 100644
--- a/src/vram.c
+++ b/src/vram.c
@@ -30,6 +30,7 @@
 
 SDL_Surface *gb_screen=NULL;
 
+int scxoff,scyoff;
 
 Uint16 grey[4];
 Uint8 pal_bck[4]={0,3,3,3};
@@ -45,6 +46,9 @@ Uint8 back_col[170][170];
 
 Uint8 nb_spr;
 
+GB_SPRITE gb_spr[40];
+Uint8 rb_on;
+
 struct mask_shift tab_ms[8]={
   { 0x80,7 },
   { 0x40,6 },
diff --git a/src/vram.h b/src/vram.h
index d64a3d4..db9d061 100644
--- a/src/vram.h
+++ b/src/vram.h
@@ -62,7 +62,7 @@ struct mask_shift {
 
 extern struct mask_shift tab_ms[8];
 extern Uint32 video_flag;
-int scxoff,scyoff;		/* shift of the screen */
+extern int scxoff,scyoff;		/* shift of the screen */
 
 extern Uint16 grey[4];
 extern Uint8 pal_bck[4];
@@ -89,10 +89,10 @@ typedef struct {
   Uint8 priority;
 }GB_SPRITE;
 
-GB_SPRITE gb_spr[40];
+extern GB_SPRITE gb_spr[40];
 extern Uint8 nb_spr;
 
-Uint8 rb_on;
+extern Uint8 rb_on;
 
 extern void (*draw_screen)(void);
 
-- 
2.26.2