Taken from Debian patchset to fix
http://bugs.gentoo.org/69693

--- winesetuptk-0.7/tcltk-winesetuptk-0.7/img1.2.4/Makefile.in
+++ winesetuptk-0.7/tcltk-winesetuptk-0.7/img1.2.4/Makefile.in
@@ -195,7 +195,7 @@
 
 INSTALL_PROGRAM =	$(INSTALL) -m 744
 INSTALL_DATA =		$(INSTALL) -m 644
-INSTALL_SHLIB =		$(INSTALL) -m 555
+INSTALL_SHLIB =		$(INSTALL) -m 644
 RANLIB =		@RANLIB@
 SHLIB_SUFFIX =		@SHLIB_SUFFIX@