gcc: fix build on non 64-bit architectures

Author: MingcongBai

core-devel/gcc/02-compiler/beyond

@@ -12,7 +12,12 @@ ln -sv /usr/bin/cpp "$PKGDIR"/usr/lib/cpp
 
 # Misplaced file that confuses ldconfig(8), provided by GLibc.
 mkdir -pv "$PKGDIR"/usr/share/gdb/auto-load/usr/lib
-mv -v "$PKGDIR"/usr/lib64/*gdb.py "$PKGDIR"/usr/share/gdb/auto-load/usr/lib
+# FIXME: Could go either way.
+if [[ "${CROSS:-$ARCH}" = *64 ]]; then
+    mv -v "$PKGDIR"/usr/lib64/*gdb.py "$PKGDIR"/usr/share/gdb/auto-load/usr/lib
+else
+    mv -v "$PKGDIR"/usr/lib/*gdb.py "$PKGDIR"/usr/share/gdb/auto-load/usr/lib
+fi
 
 # Remove files in gcc-runtime.
 RTLIBS="asan lsan tsan ubsan vtv itm quadmath atomic gcc_s stdc++ gfortran gomp \