Nasty attempt to fix building of testnative across various platforms.

The world longs for a hero named CMake.

test/Makefile.in

@@ -121,11 +121,25 @@ testloadso$(EXE): $(srcdir)/testloadso.c
 testlock$(EXE): $(srcdir)/testlock.c
 	$(CC) -o $@ $? $(CFLAGS) $(LIBS)
 
+ifeq (@ISMACOSX@,true)
 testnative$(EXE): $(srcdir)/testnative.c \
 			$(srcdir)/testnativecocoa.m \
 			$(srcdir)/testnativew32.c \
 			$(srcdir)/testnativex11.c
 	$(CC) -o $@ $? $(CFLAGS) $(LIBS) -L/usr/X11/lib -lX11 -framework Cocoa
+endif
+
+ifeq (@ISWINDOWS@,true)
+testnative$(EXE): $(srcdir)/testnative.c \
+			$(srcdir)/testnativew32.c
+	$(CC) -o $@ $? $(CFLAGS) $(LIBS)
+endif
+
+ifeq (@ISUNIX@,true)
+testnative$(EXE): $(srcdir)/testnative.c \
+			$(srcdir)/testnativex11.c
+	$(CC) -o $@ $? $(CFLAGS) $(LIBS) -L/usr/X11/lib -lX11
+endif
 
 testoverlay2$(EXE): $(srcdir)/testoverlay2.c
 	$(CC) -o $@ $? $(CFLAGS) $(LIBS)

test/configure.in

@@ -13,9 +13,17 @@ dnl Check for compiler environment
 
 AC_C_CONST
 
+dnl We only care about this for building testnative at the moment, so these
+dnl  values shouldn't be considered absolute truth.
+dnl  (BeOS, for example, sets none of these.)
+ISUNIX="false"
+ISWINDOWS="false"
+ISMACOSX="false"
+
 dnl Figure out which math library to use
 case "$host" in
     *-*-cygwin* | *-*-mingw32*)
+        ISWINDOWS="true"
         EXE=".exe"
         MATHLIB=""
         SYS_GL_LIBS="-lopengl32"
@@ -26,11 +34,13 @@ case "$host" in
         SYS_GL_LIBS="-lGL"
         ;;
     *-*-darwin* )
+        ISMACOSX="true"
         EXE=""
         MATHLIB=""
         SYS_GL_LIBS="-Wl,-framework,OpenGL"
         ;;
     *-*-aix*)
+        ISUNIX="true"
         EXE=""
         if test x$ac_cv_prog_gcc = xyes; then
             CFLAGS="-mthreads"
@@ -56,6 +66,8 @@ case "$host" in
         SYS_GL_LIBS="-lGLES_CM"
         ;;
     *)
+        dnl Oh well, call it Unix...
+        ISUNIX="true"
         EXE=""
         MATHLIB="-lm"
         SYS_GL_LIBS="-lGL"
@@ -63,6 +75,9 @@ case "$host" in
 esac
 AC_SUBST(EXE)
 AC_SUBST(MATHLIB)
+AC_SUBST(ISMACOSX)
+AC_SUBST(ISWINDOWS)
+AC_SUBST(ISUNIX)
 
 dnl Check for SDL
 SDL_VERSION=2.0.0