r300g: fix scons build

So I didn't touch r300compiler, but r300g now compiles after having
declarations and code untangled. As nha so gently points out, we shouldn't
have to do this just to comply with MSVC compilers.

src/gallium/drivers/r300/SConscript

@@ -1,6 +1,10 @@
 Import('*')
 
+r300compiler = SConscript('#/src/mesa/drivers/dri/r300/compiler/SConscript')
+
 env = env.Clone()
+# add the paths for r300compiler
+env.Append(CPPPATH = ['#/src/mesa/drivers/dri/r300/compiler', '#/include', '#/src/mesa'])
 
 r300 = env.ConvenienceLibrary(
     target = 'r300',
@@ -23,7 +27,8 @@ r300 = env.ConvenienceLibrary(
         'r300_vs.c',
         'r300_surface.c',
         'r300_texture.c',
-    ])
+        'r300_tgsi_to_rc.c',
+    ] + r300compiler) + r300compiler
 
 Export('r300')
 

src/gallium/drivers/r300/r300_debug.c

@@ -48,6 +48,8 @@ void r300_init_debug(struct r300_context * ctx)
 {
     const char * options = debug_get_option("RADEON_DEBUG", 0);
     boolean printhint = false;
+    size_t length;
+    struct debug_option * opt;
 
     if (options) {
         while(*options) {
@@ -56,8 +58,7 @@ void r300_init_debug(struct r300_context * ctx)
                 continue;
             }
 
-            size_t length = strcspn(options, " ,");
-            struct debug_option * opt;
+            length = strcspn(options, " ,");
 
             for(opt = debug_options; opt->name; ++opt) {
                 if (!strncmp(options, opt->name, length)) {
@@ -81,7 +82,7 @@ void r300_init_debug(struct r300_context * ctx)
     if (printhint || ctx->debug & DBG_HELP) {
         debug_printf("You can enable debug output by setting the RADEON_DEBUG environment variable\n"
                      "to a comma-separated list of debug options. Available options are:\n");
-        for(struct debug_option * opt = debug_options; opt->name; ++opt) {
+        for(opt = debug_options; opt->name; ++opt) {
             debug_printf("    %s: %s\n", opt->name, opt->description);
         }
     }

src/gallium/drivers/r300/r300_tgsi_to_rc.c

@@ -257,12 +257,13 @@ static void transform_texture(struct rc_instruction * dst, struct tgsi_instructi
 
 static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src)
 {
+    struct rc_instruction * dst;
+    int i;
+
     if (src->Instruction.Opcode == TGSI_OPCODE_END)
         return;
 
-    struct rc_instruction * dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev);
-    int i;
-
+    dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev);
     dst->I.Opcode = translate_opcode(src->Instruction.Opcode);
     dst->I.SaturateMode = translate_saturate(src->Instruction.Saturate);
 

src/gallium/drivers/r300/r300_vs.c

@@ -35,6 +35,8 @@ static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
 {
     struct r300_vertex_shader * vs = c->UserData;
     struct tgsi_shader_info* info = &vs->info;
+    struct tgsi_parse_context parser;
+    struct tgsi_full_declaration * decl;
     boolean pointsize = false;
     int out_colors = 0;
     int colors = 0;
@@ -62,8 +64,6 @@ static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
         }
     }
 
-    struct tgsi_parse_context parser;
-
     tgsi_parse_init(&parser, vs->state.tokens);
 
     while (!tgsi_parse_end_of_tokens(&parser)) {
@@ -72,7 +72,7 @@ static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
         if (parser.FullToken.Token.Type != TGSI_TOKEN_TYPE_DECLARATION)
             continue;
 
-        struct tgsi_full_declaration * decl = &parser.FullToken.FullDeclaration;
+        decl = &parser.FullToken.FullDeclaration;
 
         if (decl->Declaration.File != TGSI_FILE_OUTPUT)
             continue;

src/mesa/drivers/dri/r300/compiler/SConscript

@@ -0,0 +1,30 @@
+Import('*')
+
+env = env.Clone()
+env.Append(CPPPATH = '#/include')
+env.Append(CPPPATH = '#/src/mesa')
+
+# temporary fix
+env['CFLAGS'] = str(env['CFLAGS']).replace('-Werror=declaration-after-statement', '')
+
+r300compiler = env.ConvenienceLibrary(
+    target = 'r300compiler',
+    source = [
+        'radeon_code.c',
+        'radeon_compiler.c',
+        'radeon_nqssadce.c',
+        'radeon_program.c',
+        'radeon_program_alu.c',
+        'radeon_program_pair.c',
+        'r3xx_fragprog.c',
+        'r300_fragprog.c',
+        'r300_fragprog_swizzle.c',
+        'r300_fragprog_emit.c',
+        'r500_fragprog.c',
+        'r500_fragprog_emit.c',
+        'r3xx_vertprog.c',
+        'r3xx_vertprog_dump.c',
+        'memory_pool.c',
+    ])
+
+Return('r300compiler')