Add -B prefix support. Small consistency cleanups.

tools/winegcc/utils.c

@@ -273,11 +273,26 @@ file_type get_lib_type(strarray* path, const char* library, char** file)
     return file_na;
 }
 
-void spawn(const strarray* args)
+void spawn(const char* prefix, const strarray* args)
 {
     int i, status;
     strarray* arr = strarray_dup(args);
     const char** argv = arr->base;
+    char* prog = 0;
+
+    if (prefix)
+    {
+        const char* p;
+	struct stat st;
+
+	if (!(p = strrchr(argv[0], '/'))) p = argv[0];
+	prog = strmake("%s/%s", prefix, p);
+	if (stat(prog, &st) == 0)
+	{
+	    if ((st.st_mode & S_IFREG) && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+		argv[0] = prog;
+	}
+    }
 
     strarray_add(arr, NULL);
     if (verbose)
@@ -293,5 +308,6 @@ void spawn(const strarray* args)
 	exit(3);
     }
 
+    free(prog);
     strarray_free(arr);
 }

tools/winegcc/utils.h

@@ -62,6 +62,6 @@ char* get_basename(const char* file);
 void create_file(const char* name, int mode, const char* fmt, ...);
 file_type get_file_type(const char* filename);
 file_type get_lib_type(strarray* path, const char* library, char** file);
-void spawn(const strarray* arr);
+void spawn(const char* prefix, const strarray* arr);
 
 extern int verbose;

tools/winegcc/winegcc.c

@@ -160,6 +160,7 @@ struct options
     int noshortwchar;
     int gui_app;
     int compile_only;
+    const char* prefix;
     const char* output_name;
     strarray* lib_dirs;
     strarray* linker_args;
@@ -314,7 +315,7 @@ static void compile(struct options* opts)
     for ( j = 0; j < opts->files->size; j++ )
 	strarray_add(comp_args, opts->files->base[j]);
 
-    spawn(comp_args);
+    spawn(opts->prefix, comp_args);
 }
 
 static const char* compile_to_object(struct options* opts, const char* file)
@@ -487,7 +488,7 @@ static void build(struct options* opts)
 	}
     }
 
-    spawn(spec_args);
+    spawn(opts->prefix, spec_args);
 
     /* compile the .spec.c file into a .spec.o file */
     comp_args = strarray_alloc();
@@ -499,7 +500,7 @@ static void build(struct options* opts)
     strarray_add(comp_args, "-c");
     strarray_add(comp_args, spec_c_name);
 
-    spawn(comp_args);
+    spawn(opts->prefix, comp_args);
     
     /* link everything together now */
     link_args = strarray_alloc();
@@ -539,7 +540,7 @@ static void build(struct options* opts)
 	strarray_add(link_args, "-lc");
     }
 
-    spawn(link_args);
+    spawn(opts->prefix, link_args);
 
     /* create the loader script */
     if (generate_app_loader)
@@ -557,7 +558,7 @@ static void forward(int argc, char **argv, struct options* opts)
     for( j = 1; j < argc; j++ ) 
 	strarray_add(args, argv[j]);
 
-    spawn(args);
+    spawn(opts->prefix, args);
 }
 
 /*
@@ -637,6 +638,7 @@ int main(int argc, char **argv)
     int raw_compiler_arg, raw_linker_arg;
     const char* option_arg;
     struct options opts;
+    char* str;
 
     /* setup tmp file removal at exit */
     tmp_files = strarray_alloc();
@@ -730,6 +732,11 @@ int main(int argc, char **argv)
 	    /* do a bit of semantic analysis */
             switch (argv[i][1]) 
 	    {
+		case 'B':
+		    str = strdup(option_arg);
+		    if (strendswith(str, "/")) str[strlen(str) - 1] = 0;
+		    opts.prefix = str;
+		    break;
                 case 'c':        /* compile or assemble */
 		    if (argv[i][2] == 0) opts.compile_only = 1;
 		    /* fall through */