Jacek Caban : widl: Added --help command line option.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 42e77c849f32946d1e6417dfb5d6c6d667482871
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=42e77c849f32946d1e6417dfb5d6c6d667482871

Author: Jacek Caban <jacek at codeweavers.com>
Date:   Fri Jun  8 11:15:17 2012 +0200

widl: Added --help command line option.

---

 tools/widl/widl.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/tools/widl/widl.c b/tools/widl/widl.c
index b0e2b67..85d66d7 100644
--- a/tools/widl/widl.c
+++ b/tools/widl/widl.c
@@ -56,6 +56,7 @@ static const char usage[] =
 "   -d n               Set debug level to 'n'\n"
 "   -D id[=val]        Define preprocessor identifier id=val\n"
 "   -E                 Preprocess only\n"
+"   --help             Display this help and exit\n"
 "   -h                 Generate headers\n"
 "   -H file            Name of header file (default is infile.h)\n"
 "   -I path            Set include search dir to path (multiple -I allowed)\n"
@@ -149,6 +150,7 @@ enum {
     PREFIX_ALL_OPTION,
     PREFIX_CLIENT_OPTION,
     PREFIX_SERVER_OPTION,
+    PRINT_HELP,
     WIN32_OPTION,
     WIN64_OPTION,
     WIN32_ALIGN_OPTION,
@@ -160,6 +162,7 @@ static const char short_options[] =
 static const struct option long_options[] = {
     { "dlldata", 1, NULL, DLLDATA_OPTION },
     { "dlldata-only", 0, NULL, DLLDATA_ONLY_OPTION },
+    { "help", 0, NULL, PRINT_HELP },
     { "local-stubs", 1, NULL, LOCAL_STUBS_OPTION },
     { "oldnames", 0, NULL, OLDNAMES_OPTION },
     { "output", 0, NULL, 'o' },
@@ -526,6 +529,9 @@ int main(int argc,char *argv[])
     case PREFIX_SERVER_OPTION:
       prefix_server = xstrdup(optarg);
       break;
+    case PRINT_HELP:
+      fprintf(stderr, "%s", usage);
+      return 0;
     case WIN32_OPTION:
       do_win32 = 1;
       do_win64 = 0;