Added autoconf, automake, bsdutils, libtool, musl-fts, perl, and pkgconf, and replaced m4

sources/libtool/libtool.spec

@@ -0,0 +1,27 @@
+# Maintainer: Alexander Hill <ahill@breadpudding.dev>
+SRC_HASH="f81f5860666b0bc7d84baddefa60d1cb9fa6fceb2398cc3baca6afaa60266675"
+SRC_NAME="libtool"
+SRC_URL="https://ftp.gnu.org/gnu/libtool/libtool-2.5.4.tar.xz"
+SRC_VERSION="2.5.4"
+
+build() {
+    tar xf ../$SRC_FILENAME
+    cd libtool-*/
+    ./configure $TT_AUTOCONF_COMMON --disable-static
+    make -j $TT_PROCS
+    # NOTE: For some reason, libtoolize uses the env command to locate sh, but
+    #       we don't have the env command yet, because env is part of bsdutils,
+    #       which requires musl-fts to function, which we can't build without
+    #       libtoolize. Strangely enough, libtool is hard-coded to /bin/sh, so
+    #       I don't know why libtoolize uses /usr/bin/env. ~ahill
+    sed -i "s|/usr/bin/env sh|/bin/sh" libtoolize
+}
+
+clean() {
+    rm -rf libtool-*/
+}
+
+package() {
+    cd libtool-*/
+    make -j $TT_PROCS install DESTDIR=$TT_INSTALLDIR
+}