travis: use prebuilt depends on OS X (optional)

.travis.yml

@@ -19,6 +19,7 @@ env:
         - CFLAGS="${CFLAGS} -O0 -g -DNDEBUG"
         - LD_LIBRARY_PATH="${HOME}/.local/lib"
         - DYLD_LIBRARY_PATH="${HOME}/.local/lib"
+        - MAKEOPTS="-j2"
 before_script:
     - ./scripts/bootstrap-depends.sh ${HOME}/.local
 script:

scripts/bootstrap-depends.sh

@@ -13,12 +13,17 @@ install -d ${PREFIX}/{lib,libexec,include,bin,sbin,man,share,etc,info,doc,var}
 [ ! -d .depend ] && mkdir .depend; cd .depend
 
 # platform-specific
+DEPEND_CACHE="https://dl.dropboxusercontent.com/u/2255176/resolver-${TRRAVIS_OS_NAME}-cache.tar.lzma"
 PIP_PKGS="${TRAVIS_BUILD_DIR}/tests/pydnstest/requirements.txt cpp-coveralls"
 if [ "${TRAVIS_OS_NAME}" == "osx" ]; then
 	brew install python
 	brew link --overwrite python
 	pip install --upgrade pip
 	pip install -r ${PIP_PKGS}
+	if wget "${DEPEND_CACHE}" -o cache.tar.lzma; then
+		echo "extracting prebuilt dependencies from ${DEPEND_CACHE}"
+		tar -x -C ${HOME} -f cache.tar.lzma || true
+	fi
 fi
 if [ "${TRAVIS_OS_NAME}" == "linux" ]; then
 	pip install --user ${USER} -r ${PIP_PKGS}