fix the _ symbol prefix detection. software rendering now works

configure.in

@@ -78,6 +78,15 @@ AC_SUBST(ASFLAGS)
 SDL_FLAGS=`sdl-config --libs`
 AC_SUBST(SDL_FLAGS)
 
+AC_MSG_CHECKING(for underscore prefix in names)
+AC_TRY_LINK(
+	[asm(".long _bar");
+	int bar;],
+	[],
+	AC_DEFINE(HAVE_SYM_PREFIX_UNDERSCORE, 1, [Define this if C symbols are prefixed with an underscore]) AC_MSG_RESULT(yes),
+	AC_MSG_RESULT(no)
+)
+
 AC_CONFIG_FILES([Makefile
 				 src/Makefile
 				 src/baseq2/Makefile

src/d_copy.S

@@ -3,6 +3,9 @@
 // x86 assembly-language screen copying code.
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 
 	.data

src/d_polysa.S

@@ -3,6 +3,9 @@
 // x86 assembly-language polygon model drawing code
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 #include "d_ifacea.h"
 

src/math.S

@@ -2,6 +2,9 @@
 // math.s
 // x86 assembly-language math routines.
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #define GLQUAKE	1	// don't include unneeded defs
 #include "../src/qasm.h"
 

src/qasm.h

@@ -20,10 +20,10 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #ifndef __ASM_I386__
 #define __ASM_I386__
 
-#if defined ELF && !defined __OpenBSD__
-#define C(label) label
-#else
+#ifdef HAVE_SYM_PREFIX_UNDERSCORE
 #define C(label) _##label
+#else
+#define C(label) label
 #endif
 
 

src/r_aclipa.S

@@ -3,6 +3,9 @@
 // x86 assembly-language Alias model transform and project code.
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 #include "d_ifacea.h"
 

src/r_draw16.S

@@ -4,6 +4,9 @@
 // subdivision.
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 #include "d_ifacea.h"
 

src/r_drawa.S

@@ -3,6 +3,9 @@
 // x86 assembly-language edge clipping and emission code
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 #include "d_ifacea.h"
 

src/r_edgea.S

@@ -3,6 +3,9 @@
 // x86 assembly-language edge-processing code.
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 
 #if	id386

src/r_scana.S

@@ -3,6 +3,9 @@
 // x86 assembly-language turbulent texture mapping code
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 #include "d_ifacea.h"
 

src/r_spr8.S

@@ -3,6 +3,9 @@
 // x86 assembly-language horizontal 8-bpp transparent span-drawing code.
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 
 #if id386

src/r_surf8.S

@@ -3,6 +3,9 @@
 // x86 assembly-language 8 bpp surface block drawing code.
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 
 #if	id386

src/r_varsa.S

@@ -2,6 +2,9 @@
 // r_varsa.s
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"
 #include "d_ifacea.h"
 

src/snd_mixa.S

@@ -3,6 +3,9 @@
 // x86 assembly-language sound code
 //
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "qasm.h"
 
 #if	id386

src/sys_dosa.S

@@ -2,6 +2,9 @@
 // sys_dosa.s
 // x86 assembly-language DOS-dependent routines.
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
 #include "../src/qasm.h"