1 files changed, 43 insertions, 0 deletions
diff --git a/src/ci/docker/scripts/musl.sh b/src/ci/docker/scripts/musl.sh
new file mode 100644
index 000000000..3e5dc4af0
--- /dev/null
+++ b/src/ci/docker/scripts/musl.sh
@@ -0,0 +1,43 @@
+#!/bin/sh
+set -ex
+
+hide_output() {
+  set +x
+  on_err="
+echo ERROR: An error was encountered with the build.
+cat /tmp/build.log
+exit 1
+"
+  trap "$on_err" ERR
+  bash -c "while true; do sleep 30; echo \$(date) - building ...; done" &
+  PING_LOOP_PID=$!
+  "$@" &> /tmp/build.log
+  trap - ERR
+  kill $PING_LOOP_PID
+  rm /tmp/build.log
+  set -x
+}
+
+TAG=$1
+shift
+
+# Ancient binutils versions don't understand debug symbols produced by more recent tools.
+# Apparently applying `-fPIC` everywhere allows them to link successfully.
+export CFLAGS="-fPIC $CFLAGS"
+
+MUSL=musl-1.1.24
+
+# may have been downloaded in a previous run
+if [ ! -d $MUSL ]; then
+  curl https://www.musl-libc.org/releases/$MUSL.tar.gz | tar xzf -
+fi
+
+cd $MUSL
+./configure --enable-debug --disable-shared --prefix=/musl-$TAG "$@"
+if [ "$TAG" = "i586" -o "$TAG" = "i686" ]; then
+  hide_output make -j$(nproc) AR=ar RANLIB=ranlib
+else
+  hide_output make -j$(nproc)
+fi
+hide_output make install
+hide_output make clean