[PATCH] winegcc: add -I for the prefix's include dir

[Andre Heider]

This allows external projects to e.g. "#include <wine/debug.h>" for
non-standard prefixes, like winehq's distro packages residing in /opt.

Signed-off-by: Andre Heider 
---
 tools/winegcc/Makefile.in | 2 +-
 tools/winegcc/winegcc.c   | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/winegcc/Makefile.in b/tools/winegcc/Makefile.in
index 6de23b0495..daeb91be1e 100644
--- a/tools/winegcc/Makefile.in
+++ b/tools/winegcc/Makefile.in
@@ -9,7 +9,7 @@ C_SRCS = \
    winegcc.c

winegcc_EXTRADEFS = \
-	-DINCLUDEDIR=""${includedir}/wine"" \
+	-DINCLUDEDIR=""${includedir}"" \
    -DDLLDIR=""${dlldir}"" \
    -DLIBDIR=""${libdir}"" \
    -DCC=""$(CC)"" \
diff --git a/tools/winegcc/winegcc.c b/tools/winegcc/winegcc.c
index 76442d8122..6b3b4b6aab 100644
--- a/tools/winegcc/winegcc.c
+++ b/tools/winegcc/winegcc.c
@@ -672,10 +672,11 @@ no_compat_defines:
     {
         if (opts->use_msvcrt)
         {
-            strarray_add(comp_args, gcc_defs ? "-isystem" INCLUDEDIR "/msvcrt" : "-I" INCLUDEDIR "/msvcrt" );
+            strarray_add(comp_args, gcc_defs ? "-isystem" INCLUDEDIR "/wine/msvcrt" : "-I" INCLUDEDIR "/wine/msvcrt" );
             strarray_add(comp_args, "-D__MSVCRT__");
         }
-        strarray_add(comp_args, gcc_defs ? "-isystem" INCLUDEDIR "/windows" : "-I" INCLUDEDIR "/windows" );
+        strarray_add(comp_args, gcc_defs ? "-isystem" INCLUDEDIR : "-I" INCLUDEDIR );
+        strarray_add(comp_args, gcc_defs ? "-isystem" INCLUDEDIR "/wine/windows" : "-I" INCLUDEDIR "/wine/windows" );
     }
     else if (opts->wine_objdir)
         strarray_add(comp_args, strmake("-I%s/include", opts->wine_objdir) );