WIP: Compiles on x86-64.

* ...but crashes when entering a level. Hm.
    * Menus and video work!

CMakeLists.txt

@@ -2,6 +2,7 @@ cmake_minimum_required(VERSION 3.9)
 project(quake2global)
 
 add_compile_definitions(__i386__)
+add_compile_definitions(C_ONLY)
 
 add_subdirectory(src/quake2)
 

src/game_baseq2/CMakeLists.txt

@@ -51,5 +51,3 @@ add_library(game_baseq2 SHARED
         p_weapon.c
         q_shared.c
 )
-
-set_target_properties(game_baseq2 PROPERTIES COMPILE_FLAGS "-m32" LINK_FLAGS "-m32")

src/quake2/CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.9)
-project(quake2 C ASM)
+project(quake2 C)
 
-set(CMAKE_ASM_FLAGS "${CFLAGS} -x assembler-with-cpp")
+#set(CMAKE_ASM_FLAGS "${CFLAGS} -x assembler-with-cpp")
 
 add_executable(quake2
         ../game_baseq2/m_flash.c
@@ -32,7 +32,7 @@ add_executable(quake2
         linux/net_udp.c
         linux/q_shlinux.c
         linux/snd_linux.c
-        linux/snd_mixa.s
+        #linux/snd_mixa.s
         linux/sys_linux.c
         linux/vid_menu.c
         linux/vid_so.c
@@ -57,6 +57,4 @@ add_executable(quake2
         server/sv_world.c
 )
 
-set_target_properties(quake2 PROPERTIES COMPILE_FLAGS "-m32" LINK_FLAGS "-m32")
-
 target_link_libraries(quake2 dl m)

src/quake2/client/snd_mix.c

@@ -30,7 +30,7 @@ short	*snd_out;
 
 void S_WriteLinearBlastStereo16 (void);
 
-#if !(defined __linux__ && defined __i386__)
+#if !(defined __linux__ && defined __i386__ && id386)
 #if	!id386
 
 void S_WriteLinearBlastStereo16 (void)
@@ -362,7 +362,7 @@ void S_InitScaletable (void)
 }
 
 
-#if !(defined __linux__ && defined __i386__)
+#if !(defined __linux__ && defined __i386__ && id386)
 #if	!id386
 
 void S_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int count, int offset)

src/quake2/linux/q_shlinux.c

@@ -1,3 +1,5 @@
+#define _GNU_SOURCE
+
 #include <sys/types.h>
 #include <errno.h>
 #include <stdio.h>
@@ -13,18 +15,18 @@
 
 //===============================================================================
 
-byte *membase;
+static byte *membase;
-int maxhunksize;
+static int maxhunksize;
-int curhunksize;
+static int curhunksize;
 
 void *Hunk_Begin (int maxsize)
 {
 	// reserve a huge chunk of memory, but don't commit any yet
 	maxhunksize = maxsize + sizeof(int);
 	curhunksize = 0;
-	membase = mmap(0, maxhunksize, PROT_READ|PROT_WRITE, 
+	membase = mmap(NULL, maxhunksize, PROT_READ|PROT_WRITE,
 		MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
-	if (membase == NULL || membase == (byte *)-1)
+	if (membase == NULL || membase == MAP_FAILED)
 		Sys_Error("unable to virtual allocate %d bytes", maxsize);
 
 	*((int *)membase) = curhunksize;

src/ref_gl/CMakeLists.txt

@@ -25,6 +25,4 @@ add_library(ref_gl SHARED
         gl_warp.c
 )
 
-set_target_properties(ref_gl PROPERTIES COMPILE_FLAGS "-m32" LINK_FLAGS "-m32")
-
 target_link_libraries(ref_gl GL)  # {OPENGL_LIBRARIES} doesn't seem to play well with -m32

src/ref_soft/CMakeLists.txt

@@ -1,25 +1,25 @@
 cmake_minimum_required(VERSION 3.9)
-project(ref_soft C ASM)
+project(ref_soft C)
 
-set(CMAKE_ASM_FLAGS "${CFLAGS} -x assembler-with-cpp")
+#set(CMAKE_ASM_FLAGS "${CFLAGS} -x assembler-with-cpp")
 
 add_library(ref_soft SHARED
         ../game_baseq2/q_shared.c
 
-        ../quake2/linux/d_polysa.s
+        #../quake2/linux/d_polysa.s
         ../quake2/linux/glob.c
-        ../quake2/linux/r_aclipa.s
+        #../quake2/linux/r_aclipa.s
-        ../quake2/linux/r_draw16.s
+        #../quake2/linux/r_draw16.s
-        ../quake2/linux/r_drawa.s
+        #../quake2/linux/r_drawa.s
-        ../quake2/linux/r_edgea.s
+        #../quake2/linux/r_edgea.s
-        ../quake2/linux/r_scana.s
+        #../quake2/linux/r_scana.s
-        ../quake2/linux/r_spr8.s
+        #../quake2/linux/r_spr8.s
-        ../quake2/linux/r_surf8.s
+        #../quake2/linux/r_surf8.s
-        ../quake2/linux/math.s
+        #../quake2/linux/math.s
         ../quake2/linux/q_shlinux.c
-        ../quake2/linux/r_varsa.s
+        #../quake2/linux/r_varsa.s
         ../quake2/linux/rw_x11.c
-        ../quake2/linux/sys_dosa.s
+        #../quake2/linux/sys_dosa.s
 
         r_aclip.c
         r_alias.c
@@ -40,6 +40,4 @@ add_library(ref_soft SHARED
         r_surf.c
 )
 
-set_target_properties(ref_soft PROPERTIES COMPILE_FLAGS "-m32" LINK_FLAGS "-m32")
-
 target_link_libraries(ref_soft X11 Xext)

src/ref_soft/r_misc.c

@@ -206,7 +206,7 @@ void R_TransformFrustum (void)
 }
 
 
-#if !(defined __linux__ && defined __i386__)
+#if !(defined __linux__ && defined __i386__ && id386)
 #if !id386
 
 /*