initial travis integration (no tests for now)

.travis.yml

@@ -0,0 +1,20 @@
+language: c
+
+sudo: true
+
+os:
+  - linux
+  - osx
+
+before_install:
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install tcl-tk; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get update -qq; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install tcl8.6-dev -y; fi
+
+script:
+  - autoreconf -vi
+  - if [ -f /usr/local/opt/tcl-tk/lib/tclConfig.sh ]; then ./configure --with-tcl=/usr/local/opt/tcl-tk/lib --prefix=/usr/local; else ./configure; fi
+  - make
+  - sudo make install
+