Fix SDL paths for guix build

Makefile

@@ -18,7 +18,7 @@
 #   You should have received a copy of the GNU General Public License
 #   along with Meritous.  If not, see <http://www.gnu.org/licenses/>.
 #
-LDFLAGS = `sdl-config --libs` -lSDL_image -lSDL_mixer -lz
+LDFLAGS = `sdl-config --libs` -lSDL_image -lSDL_mixer -lz -lpthread -lm
 CCFLAGS = -O2 -Wall `sdl-config --cflags` -g
 #
 OBJS = 	src/levelblit.o \

src/audio.c

@@ -23,8 +23,8 @@
 #include <stdlib.h>
 #include <math.h>
 #include <SDL.h>
-#include <SDL_image.h>
-#include <SDL_mixer.h>
+#include <SDL/SDL_image.h>
+#include <SDL/SDL_mixer.h>
 #include <string.h>
 
 #include "levelblit.h"

src/boss.c

@@ -25,7 +25,7 @@
 #include <math.h>
 #include <time.h>
 #include <SDL.h>
-#include <SDL_image.h>
+#include <SDL/SDL_image.h>
 
 #include "levelblit.h"
 #include "mapgen.h"

src/demon.c

@@ -22,8 +22,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#include <SDL.h>
-#include <SDL_image.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_image.h>
 #include <assert.h>
 
 #include "levelblit.h"

src/ending.c

@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <math.h>
 #include <SDL.h>
-#include <SDL_image.h>
+#include <SDL/SDL_image.h>
 #include <assert.h>
 
 #include "levelblit.h"

src/gamemap.c

@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <math.h>
 #include <SDL.h>
-#include <SDL_image.h>
+#include <SDL/SDL_image.h>
 
 #include "levelblit.h"
 #include "mapgen.h"

src/help.c

@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <math.h>
 #include <SDL.h>
-#include <SDL_image.h>
+#include <SDL/SDL_image.h>
 #include <string.h>
 
 #include "levelblit.h"

src/levelblit.c

@@ -24,8 +24,8 @@
 #include <string.h>
 #include <math.h>
 #include <time.h>
-#include <SDL.h>
-#include <SDL_image.h>
+#include <SDL/SDL.h>
+#include <SDL/SDL_image.h>
 #include <assert.h>
 
 #include "mapgen.h"

src/save.c

@@ -23,7 +23,7 @@
 #include <stdlib.h>
 #include <math.h>
 #include <SDL.h>
-#include <SDL_image.h>
+#include <SDL/SDL_image.h>
 #include <zlib.h>
 
 #include "levelblit.h"