Supressing emscripten warning about -I paths

Showing compiler output, taking EMSCRIPTEN_ROOT from ~/.emscripten (can
be overriden with EMSCRIPTEN env variable)

Author: regular

make-bitcode-for-javascript.sh

@@ -1,6 +1,13 @@
+if [ "$#" -ne 1 ]; then
+    echo "Illegal number of parameters"
+    exit 1
+fi
+# Override by setting EMSCRIPTEN environment variable
+EMSCRIPTEN_ROOT=$(python -c 'import os; import imp; print imp.load_source("", os.path.expanduser("~/.emscripten")).EMSCRIPTEN_ROOT')
 SCRIPTDIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
 LLVMDIR=$( cd "$1" && pwd )
 echo "Running from $SCRIPTDIR"
+echo "Using emscripten in $EMSCRIPTEN_ROOT"
 if [ -z "$LLVMDIR" ]; then
     echo "Specify a path to an llvm or fastcomp source tree"
     exit 1
@@ -10,24 +17,24 @@ echo "Building build tools"
 cd $LLVMDIR
 mkdir tool-build
 cd tool-build
-../configure --enable-optimized --enable-targets=x86,js --enable-libcpp --disable-jit --disable-threads --disable-pthreads --disable-assertions --enable-cxx11 &> /dev/null &&
-BUILD_DIRS_ONLY=1 make -j4 &> /dev/null || exit 1
+../configure --enable-optimized --enable-targets=x86,js --enable-libcpp --disable-jit --disable-threads --disable-pthreads --disable-assertions --enable-cxx11 &&
+BUILD_DIRS_ONLY=1 make -j4 || exit 1
 cd ..
 
 echo "Building Bitcode of llvm tools"
 mkdir emscripten-build
 cd emscripten-build
-emconfigure ../configure --enable-optimized --enable-targets=x86,js --enable-libcpp --disable-jit --disable-threads --disable-pthreads --disable-assertions --enable-bindings=no --disable-zlib &>/dev/null || exit 1
+$EMSCRIPTEN_ROOT/emconfigure ../configure --with-extra-options=-Wno-warn-absolute-paths --enable-optimized --enable-targets=x86,js --enable-libcpp --disable-jit --disable-threads --disable-pthreads --disable-assertions --enable-bindings=no --disable-zlib || exit 2
 #sed -e '/HAVE_ARC4RANDOM/ s?^?//?' -i .bak include/llvm/Config/config.h
 mkdir -p Release/bin &&
 cp ../tool-build/Release/bin/* Release/bin &&
 chflags uchg Release/bin/* || exit 1
 cp $SCRIPTDIR/stdio.h include &&
 curl https://raw.githubusercontent.com/kripken/Relooper/master/ministring.h > include/ministring.h &&
-emmake make -i -j4 #&> /dev/null
+$EMSCRIPTEN_ROOT/emmake make -i -j4 #&> /dev/null
 
 echo "Copying tools to bitcode-for-js"
 #rm -rf $SCRIPTDIR/bitcode-for-js
 mkdir $SCRIPTDIR/bitcode-for-js
-find $LLVMDIR/emscripten-build/Release/bin -maxdepth 1 -not -perm -111 -not -name ".*" -type f -exec basename {} \;| xargs -I% cp -v $LLVMDIR/emscripten-build/Release/bin/% $SCRIPTDIR/bitcode-for-js/%.bc
+find $LLVMDIR/emscripten-build/Release/bin -maxdepth 1 -not -perm -111 -not -name ".*" -type f -exec basename {} \;| xargs -I% cp $LLVMDIR/emscripten-build/Release/bin/% $SCRIPTDIR/bitcode-for-js/%.bc