Upgrade musl to 1.2.3.

sysa/musl-1.2.3/musl-1.2.3.sh

@@ -0,0 +1,22 @@
+# SPDX-FileCopyrightText: 2022 Andrius Štikonas <andrius@stikonas.eu>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+src_configure() {
+    CC=gcc ./configure \
+        --host=i386-unknown-linux-musl \
+        --disable-shared \
+        --prefix="${PREFIX}" \
+        --libdir="${PREFIX}/lib/musl" \
+        --includedir="${PREFIX}/include/"
+
+    # configure script creates this file
+    if test -f /dev/null; then
+        rm /dev/null
+        mknod -m 666 /dev/null c 1 3
+    fi
+}
+
+src_compile() {
+    make CROSS_COMPILE=
+}