remove unnecessary files after installing

the sysroot is populated with unneeded (or even detrimental) files, and
the build artifacts are entirely redundant

README.org

@@ -4,5 +4,4 @@ This repository is used to generate a collection of
 
 * Resulting image layout
 =${ARCH}-linux-mlibc= toolchains are built and installed with a prefix of
-=/usr/local= and configured with a sysroot in =/sysroots/${ARCH}-linux-mlibc/=,
-in which mlibc and Linux headers are installed.
+=/usr/local= and configured with a sysroot in =/sysroots/${ARCH}-linux-mlibc/=.

build-many-tools.bash

@@ -82,8 +82,18 @@ for target in "${targets[@]}"; do (
         ${MANYTOOLS_CONF_EXTRA}
     make -O -j"${PARALLELISM}"
     make -O -j"${PARALLELISM}" install
+    rm -rf "${sysroot}"/*
 ); done
 
+# Clean up build dirs
+for target in "${targets[@]}"; do
+    rm -rf "${target}"
+done
+
+# Clean up source dirs
+rm -rf gcc binutils tool-src tool-checksums *.tar* config.{sub,guess} \
+   tool-checksums linux mlibc-src
+
 # Local Variables:
 # indent-tabs-mode: nil
 # End: