Travis: Descriptive build names

.travis.yml

@@ -1,8 +1,8 @@
 # errata:
 # - A travis bug causes caches to trample eachother when using the same
 #   compiler key (which we don't use anyway). This is worked around for now by
-#   using the phony compilers "true X". These can be removed when the travis
-#   bug is fixed. See: https://github.com/travis-ci/casher/issues/6
+#   replacing the "compilers" with a build name prefixed by the no-op ":"
+#   command. See: https://github.com/travis-ci/casher/issues/6
 
 os: linux
 language: cpp
@@ -24,19 +24,19 @@ cache:
 matrix:
   fast_finish: true
   include:
-    - compiler: "true 1"
+    - compiler: ": ARM"
       env: HOST=arm-linux-gnueabihf PACKAGES="g++-arm-linux-gnueabihf" DEP_OPTS="NO_QT=1" GOAL="install" BITCOIN_CONFIG="--enable-glibc-back-compat"
-    - compiler: "true 2"
+    - compiler: ": bitcoind"
       env: HOST=x86_64-unknown-linux-gnu DEP_OPTS="NO_QT=1 NO_UPNP=1 DEBUG=1" RUN_TESTS=true GOAL="install" BITCOIN_CONFIG="--enable-glibc-back-compat CPPFLAGS=-DDEBUG_LOCKORDER"
-    - compiler: "true 3"
+    - compiler: ": No wallet"
       env: HOST=x86_64-unknown-linux-gnu DEP_OPTS="NO_WALLET=1" RUN_TESTS=true GOAL="install" BITCOIN_CONFIG="--enable-glibc-back-compat"
-    - compiler: "true 4"
+    - compiler: ": 32-bit + dash"
       env: HOST=i686-pc-linux-gnu PACKAGES="g++-multilib" RUN_TESTS=true GOAL="install" BITCOIN_CONFIG="--enable-glibc-back-compat" USE_SHELL="/bin/dash"
-    - compiler: "true 5"
+    - compiler: ": Cross-Mac"
       env: HOST=x86_64-apple-darwin11 PACKAGES="gcc-multilib g++-multilib cmake libcap-dev libz-dev libbz2-dev" OSX_SDK=10.7 GOAL="deploy"
-    - compiler: "true 6"
+    - compiler: ": Win64"
       env: HOST=x86_64-w64-mingw32 PACKAGES="nsis gcc-mingw-w64-x86-64 g++-mingw-w64-x86-64 binutils-mingw-w64-x86-64 mingw-w64-dev wine" RUN_TESTS=true GOAL="deploy"
-    - compiler: "true 7"
+    - compiler: ": Win32"
       env: HOST=i686-w64-mingw32 PACKAGES="nsis gcc-mingw-w64-i686 g++-mingw-w64-i686 binutils-mingw-w64-i686 mingw-w64-dev wine" RUN_TESTS=true GOAL="deploy"
 install:
     - if [ -n "$PACKAGES" ]; then travis_retry sudo apt-get update; fi