Got it.

The gcc-3.3.1 package is self-contained.
The libgcc and libstdc packages are for runtime support and allow you to
build with -L<gccinstdir>/lib but with rpath /usr/local/lib.
Added the missing pkginfo template.

gcc/meta/pkginfo.in

@@ -0,0 +1,11 @@
+PKG="%%pkgname%%"
+NAME="%%name%%"
+ARCH="sparc"
+VERSION="%%version%%"
+CATEGORY="%%pkgcat%%"
+VENDOR="%%pkgvendor%%"
+EMAIL="Tom G. Christenen - tgc@statsbiblioteket.dk"
+PSTAMP="%%pkgver%%"
+BASEDIR="%%topinstalldir%%"
+CLASSES="none"
+DESC="%%pkgdesc%%"