travis: support OS X builds

Add support for travis-ci OS X builds:
  - Add linux- prefix to existing build/prepare scripts
  - Create new OS X flavored build/prepare scripts
  - Update .travis.yml for OS X

At this time only one build job included in the matrix for OS X.

Signed-off-by: Lance Richardson <[email protected]>
Signed-off-by: Ben Pfaff <[email protected]>

.travis.yml

@@ -3,6 +3,9 @@ compiler:
   - gcc
   - clang
 
+os:
+  - linux
+
 addons:
   apt:
     packages:
@@ -13,7 +16,7 @@ addons:
       - libjemalloc1
       - libjemalloc-dev
 
-before_install: ./.travis/prepare.sh
+before_install: ./.travis/${TRAVIS_OS_NAME}-prepare.sh
 
 before_script: export PATH=$PATH:$HOME/bin
 
@@ -34,7 +37,13 @@ env:
   - KERNEL=3.10.96
   - TESTSUITE=1 LIBS=-ljemalloc
 
-script: ./.travis/build.sh $OPTS
+matrix:
+  include:
+    - os: osx
+      compiler: clang
+      env: OPTS="--disable-ssl"
+
+script: ./.travis/${TRAVIS_OS_NAME}-build.sh $OPTS
 
 notifications:
   email:

.travis/osx-build.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+set -o errexit
+
+CFLAGS="-Werror -Wno-error=format $CFLAGS"
+EXTRA_OPTS=""
+
+function configure_ovs()
+{
+    ./boot.sh && ./configure $*
+}
+
+configure_ovs $EXTRA_OPTS $*
+
+if [ "$CC" = "clang" ]; then
+    make CFLAGS="$CFLAGS -Wno-error=unused-command-line-argument"
+else
+    make CFLAGS="$CFLAGS $BUILD_ENV"
+fi
+if [ "$TESTSUITE" ] && [ "$CC" != "clang" ]; then
+    if ! make distcheck RECHECK=yes; then
+        # testsuite.log is necessary for debugging.
+        cat */_build/tests/testsuite.log
+        exit 1
+    fi
+fi
+
+exit 0

.travis/osx-prepare.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+set -ev
+pip install --user six

Makefile.am

@@ -99,8 +99,10 @@ EXTRA_DIST = \
 	$(docs) \
 	NOTICE \
 	.travis.yml \
-	.travis/build.sh \
-	.travis/prepare.sh \
+	.travis/linux-build.sh \
+	.travis/linux-prepare.sh \
+	.travis/osx-build.sh \
+	.travis/osx-prepare.sh \
 	appveyor.yml \
 	boot.sh \
 	build-aux/cccl \