[PATCH 1/1] winegcc: Skip winebuild when it's not needed.

[Jacek Caban]

From: Jacek Caban

On PE platforms when linking without a spec file nor resources, this produces an empty file.
---
 tools/winegcc/winegcc.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/tools/winegcc/winegcc.c b/tools/winegcc/winegcc.c
index 56fe179c92b..2736c18d7df 100644
--- a/tools/winegcc/winegcc.c
+++ b/tools/winegcc/winegcc.c
@@ -944,7 +944,8 @@ static void add_library( struct options *opts, struct strarray lib_dirs,

/* run winebuild to generate the .spec.o file */
 static const char *build_spec_obj( struct options *opts, const char *spec_file, const char *output_file,
-                                   struct strarray files, struct strarray lib_dirs, const char *entry_point )
+                                   struct strarray files, struct strarray resources, struct strarray lib_dirs,
+                                   const char *entry_point )
 {
     unsigned int i;
     int is_pe = is_pe_target( opts );
@@ -952,6 +953,8 @@ static const char *build_spec_obj( struct options *opts, const char *spec_file,
     struct strarray tool;
     const char *spec_o_name, *output_name;

+    if (is_pe && !spec_file && !resources.count) return NULL;
+
     /* get the filename from the path */
     output_name = get_basename( output_file );

@@ -1021,9 +1024,7 @@ static const char *build_spec_obj( struct options *opts, const char *spec_file,
             strarray_add(&spec_args, strmake("-d%s", opts->delayimports.str[i]));
     }

-    /* add resource files */
-    for (i = 0; i < files.count; i++)
-	if (files.str[i][1] == 'r') strarray_add(&spec_args, files.str[i]);
+    strarray_addall(&spec_args, resources);

/* add other files */
     strarray_add(&spec_args, "--");
@@ -1067,6 +1068,7 @@ static void build_data_lib( struct options *opts, const char *spec_file, const c

static void build(struct options* opts)
 {
+    struct strarray resources = empty_strarray;
     struct strarray lib_dirs = empty_strarray;
     struct strarray files = empty_strarray;
     struct strarray link_args;
@@ -1076,7 +1078,7 @@ static void build(struct options* opts)
     int generate_app_loader = 1;
     const char *crt_lib = NULL, *entry_point = NULL;
     int is_pe = is_pe_target( opts );
-    unsigned int j;
+    unsigned int i, j;

/* NOTE: for the files array we'll use the following convention:
      *    -axxx:  xxx is an archive (.a)
@@ -1225,7 +1227,11 @@ static void build(struct options* opts)
         build_data_lib( opts, spec_file, output_file, files );
         return;
     }
-    spec_o_name = build_spec_obj( opts, spec_file, output_file, files, lib_dirs, entry_point );
+
+    for (i = 0; i < files.count; i++)
+	if (files.str[i][1] == 'r') strarray_add( &resources, files.str[i] );
+
+    spec_o_name = build_spec_obj( opts, spec_file, output_file, files, resources, lib_dirs, entry_point );

if (opts->fake_module) return;  /* nothing else to do */