Add libtool 2.4.7

Instead of using the pre-generated "bootstrap" script, execute the
relevant bootstrap operations manually. This doesn't actually change
the build output; the final package hash remains identical.

sysc/libtool-2.4.7/libtool-2.4.7.sh

@@ -0,0 +1,51 @@
+# SPDX-FileCopyrightText: 2022 Dor Askayo <dor.askayo@gmail.com>
+# SPDX-FileCopyrightText: 2021 Andrius Štikonas <andrius@stikonas.eu>
+# SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+urls="http://mirrors.kernel.org/gnu/libtool/libtool-2.4.7.tar.xz
+ http://git.savannah.gnu.org/cgit/gnulib.git/snapshot/gnulib-a521820.tar.gz"
+
+src_prepare() {
+    default
+
+    rm -f build-aux/ltmain.sh
+    rm -f doc/*.info
+    rm -f bootstrap
+
+    ../../import-gnulib.sh
+
+    LIBTOOLIZE=true AUTOPOINT=true ../../bootstrap-helper.sh
+
+    LIBTOOLIZE=true AUTOPOINT=true AUTOMAKE=automake-1.11 ACLOCAL=aclocal-1.11 AUTOCONF=autoconf-2.64 AUTOHEADER=autoheader-2.64 autoreconf-2.64 -fi
+    LIBTOOLIZE=true AUTOPOINT=true AUTOMAKE=automake-1.11 ACLOCAL=aclocal-1.11 AUTOCONF=autoconf-2.64 AUTOHEADER=autoheader-2.64 autoreconf-2.64 -fi libltdl
+}
+
+src_configure() {
+    ./configure \
+        --prefix="${PREFIX}" \
+        --libdir="${PREFIX}/lib/musl" \
+        --disable-shared \
+        --host=i386-unknown-linux \
+        --target=i386-unknown-linux \
+        --build=i386-unknown-linux \
+        ac_path_EGREP="egrep" \
+        ac_path_FGREP="fgrep" \
+        ac_path_GREP="grep" \
+        ac_path_SED="sed"
+}
+
+src_compile() {
+    make AUTOM4TE=autom4te-2.64 MAKEINFO=true
+}
+
+src_install() {
+    make install MAKEINFO=true DESTDIR="${DESTDIR}"
+
+    sed -i -e "s/{EGREP=.*/{EGREP='egrep'}/" \
+        -e "s/{FGREP=.*/{FREGP='fgrep'}/" \
+        -e "s/{GREP=.*/{GREP='grep'}/" \
+        -e "s/{SED=.*/{SED='sed'}/" \
+        "${DESTDIR}/usr/bin/libtool"
+}