Added travis build

.travis.yml

@@ -0,0 +1,38 @@
+language: bash
+
+env:
+  global:
+  - PATH=$PATH:/tmp/bin
+  - TAG=2019042701
+
+  matrix:
+  #~ - ARCH=x86_64 BOOTSTRAP=x86_64
+  #~ - ARCH=i686 BOOTSTRAP=i686
+  - ARCH=x86_64-musl BOOTSTRAP=x86_64-musl
+
+install:
+- docker pull voidlinux/masterdir-$BOOTSTRAP:$TAG
+- docker run -d --name void -v "$(pwd)":/hostrepo -v /tmp:/tmp -e PATH="$PATH" voidlinux/masterdir-$BOOTSTRAP:$TAG /bin/sh -c 'sleep inf'
+
+before_script:
+- mkdir -p /tmp/bin
+- wget -q -O - https://github.com/chneukirchen/xtools/archive/master.tar.gz | gunzip | tar x -C /tmp/bin --wildcards "xtools-master/x*" --strip-components=1 || exit 1
+
+script:
+- docker exec -t void hostrepo/travis/build.sh $BOOTSTRAP $ARCH
+
+#~ after_script:
+#~ - docker exec -t void hostrepo/common/travis/show_files.sh $BOOTSTRAP $ARCH; fi
+
+deploy:
+  provider: releases
+  api_key: "$GITHUB_OAUTH_TOKEN"
+  file:
+  - glibc-x86_64-musl.tar.gz
+  skip_cleanup: true
+  on:
+    tags: true
+
+notifications:
+  email: false
+

travis/build.sh

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+#!/bin/bash
+#
+# build.sh
+
+set -euf -o pipefail
+
+if [ "$1" != "$2" ]; then
+  arch="-a $2"
+fi
+bootstrap="$1"
+arch="$2"
+
+if [ "$arch" = "x86_64-musl" ] ; then
+  (
+    cd /hostrepo/snippets/void-glibc-in-musl
+    rm -f glibc
+    gcc -s -o glibc glibc.c
+    tar zcvf /hostrepo/glibc-$arch.tar.gz glibc
+    rm -f glibc
+  )
+fi
+
+ls -l
+
+exit 0