Merge pull request #421 from stephengroat/osx-travis

Add osx tests using brew bundle

.travis.yml

@@ -24,6 +24,7 @@ addons:
     - g++-4.8
 before_install:
   - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew tap Homebrew/bundle && brew bundle; fi
   - git clone git://github.com/steveicarus/iverilog.git
   - (cd iverilog && autoconf && ./configure --prefix=$HOME/iverilog && make && make install)
   - export PATH=$PATH:$HOME/iverilog/bin
@@ -32,3 +33,4 @@ compiler:
   - gcc
 os:
   - linux
+  - osx

Brewfile

@@ -0,0 +1,9 @@
+brew "bison"
+brew "flex"
+brew "gawk"
+brew "libffi"
+brew "git"
+brew "mercurial"
+brew "graphviz"
+brew "pkg-config"
+brew "python3"

README.md

@@ -57,8 +57,7 @@ prerequisites for building yosys:
 
 Similarily, on Mac OS X MacPorts or Homebrew can be used to install dependencies:
 
-	$ brew install bison flex gawk libffi \
-		git mercurial graphviz pkg-config python3
+	$ brew tap Homebrew/bundle && brew bundle
 	$ sudo port install bison flex readline gawk libffi \
 		git mercurial graphviz pkgconfig python36