chore(build): set up for compiling on different compilers

Used for internal testing.

Author: joakimkarlsson

.gitignore

@@ -3,5 +3,5 @@ CMakeFiles
 Makefile
 bin
 cmake_install.cmake
-
+builds/
 tags

cross_compile.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+function build_for {
+  CC=$1
+  CXX=$2
+  BUILD_DIR=build-$CC
+
+  mkdir $BUILD_DIR
+  pushd $BUILD_DIR
+  CC=$CC CXX=$CXX cmake ../..
+  make
+  popd
+}
+
+if [[ -d builds ]]; then
+  rm -rf builds
+fi
+
+mkdir builds
+pushd builds
+
+build_for gcc-4.5 g++-4.5
+GCC45=$?
+
+build_for gcc-4.6 g++-4.6
+GCC46=$?
+
+build_for gcc-4.7 g++-4.7
+GCC47=$?
+
+build_for gcc-4.8 g++-4.8
+GCC48=$?
+
+build_for clang clang++
+CLANG=$?
+
+popd
+
+echo
+echo "Result:"
+echo -e "gcc-4.5:\t$GCC45"
+echo -e "gcc-4.6:\t$GCC46"
+echo -e "gcc-4.7:\t$GCC47"
+echo -e "gcc-4.8:\t$GCC48"
+echo -e "clang:\t$CLANG"
+echo "Done"
+exit $(( $GCC45 + $GCC46 + $GCC47 + $GCC48 + $CLANG ))