Move to /usr prefix.

- This is much more standard and replaces /image in sysa and is the
  standard in sysc (avoids many issues).
- GCC needs to have a file created for some unknown reason.
- Checksums updated.

sysa/gcc-4.0.4/pass2.sh

@@ -1,13 +1,9 @@
 # SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
 # SPDX-FileCopyrightText: 2021 Paul Dersey <pdersey@gmail.com>
+# SPDX-FileCopyrightText: 2021 fosslinux <fosslinux@aussies.space>
 
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-src_unpack() {
-    default
-    tar xzf ${SOURCES}/automake-1.16.3/src/automake-1.16.3.tar.gz
-}
-
 src_prepare() {
     default
 
@@ -92,4 +88,5 @@ src_compile() {
 
 src_install() {
     make -C build/gcc install STMP_FIXINC= DESTDIR="${DESTDIR}"
+    cp gcc/gsyslimits.h ${DESTDIR}${PREFIX}/lib/musl/gcc/i386-unknown-linux-musl/4.0.4/include/syslimits.h
 }