[circleci] use clang-3.7

circle.yml

@@ -7,6 +7,7 @@ machine:
     JOBS: 8
     CCACHE_TEMPDIR: /tmp/.ccache-temp
     CCACHE_COMPRESS: 1
+    LLVM_VERSION: 3.7
   pre:
     - echo "here"
   post:
@@ -17,14 +18,14 @@ dependencies:
     - "~/.ccache"
   pre:
     - sudo wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
-    - sudo add-apt-repository -y "deb http://llvm.org/apt/precise/ llvm-toolchain-precise-3.8 main"
+    - sudo add-apt-repository -y "deb http://llvm.org/apt/precise/ llvm-toolchain-precise-${LLVM_VERSION} main"
     - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
     - sudo apt-get update -y
   override:
-    - sudo apt-get install clang-3.8 -y
+    - sudo apt-get install clang-${LLVM_VERSION} -y
   post:
-    - which clang-3.8
-    - which clang++-3.8
+    - which clang-${LLVM_VERSION}
+    - which clang++-${LLVM_VERSION}
 
 
 test:

scripts/circleci.sh

@@ -7,6 +7,6 @@ source bootstrap.sh
 ccache --version
 ccache -p || true
 ccache --show-stats || true
-./configure CC="clang-3.8" CXX="ccache clang++-3.8 -Qunused-arguments"
+./configure CC="clang-${LLVM_VERSION}" CXX="ccache clang++-${LLVM_VERSION} -Qunused-arguments"
 make
 make test