mingw-w64-gcc: try --libexecdir

srcpkgs/mingw-w64-gcc/template

@@ -3,6 +3,7 @@
 pkgname=mingw-w64-gcc
 _majorver=4.6
 version=${_majorver}.1
+revision=1
 distfiles=http://ftp.gnu.org/pub/gnu/gcc/gcc-$version/gcc-$version.tar.bz2
 build_style=custom-install
 short_desc="The GNU C Compiler (for mingw-w64)"
@@ -71,7 +72,7 @@ do_build()
 		--with-system-zlib --enable-static --disable-shared --enable-lto \
 		--enable-linker-build-id --enable-gnu-unique-object \
 		--enable-checking=release --disable-nls --disable-bootstrap \
-		--libdir=${_mingwprefix}/lib
+		--libdir=${_mingwprefix}/lib --libexecdir=${_mingwprefix}/lib
 
 	make ${makejobs} all-gcc