add clang script

#!/bin/bash

set -x 

LIB_NAME="clang"

LIB_VERSION=4.0.1

GCC_VERSION=6.4.0

LIB_FULLNAME=${LIB_NAME}-${LIB_VERSION}

GCC_FULL=gcc-$GCC_VERSION

GCC_SHORT="gcc${GCC_VERSION//.}"

SUB_DIR=${LIB_NAME}/${LIB_VERSION}/${GCC_FULL}

WORK_DIR=/data/software/sources/${SUB_DIR}

URL_LLVM="http://releases.llvm.org/${LIB_VERSION}/llvm-${LIB_VERSION}.src.tar.xz"

URL_CFE="http://releases.llvm.org/${LIB_VERSION}/cfe-${LIB_VERSION}.src.tar.xz"

URL_CLANG_TOOLS="http://releases.llvm.org/${LIB_VERSION}/clang-tools-extra-${LIB_VERSION}.src.tar.xz"

URL_COMPILER_RT="http://releases.llvm.org/${LIB_VERSION}/compiler-rt-${LIB_VERSION}.src.tar.xz"

BUILD_DIR=${WORK_DIR}/${LIB_FULLNAME}-build

INSTALL_DIR=/data/software/install/${SUB_DIR}

SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

MODULE_DIR=/data/software/modules/compilers/${LIB_NAME}

MODULE_PATH=${MODULE_DIR}/${LIB_VERSION}_${GCC_SHORT}

install_lib()

{

    module purge

    module load gcc/${GCC_VERSION}

    module load cmake/3.9.2_${GCC_SHORT}

    module list

    gcc --version |head -n 1

    sleep 2

    if [[ ! -d $WORK_DIR ]]; then

	mkdir -p $WORK_DIR

	cd $WORK_DIR

	wget ${URL_LLVM}

	wget ${URL_CFE}

	wget ${URL_CLANG_TOOLS}

	wget ${URL_COMPILER_RT}

	tar -xJf ${WORK_DIR}/llvm-${LIB_VERSION}.src.tar.xz

	tar -xJf ${WORK_DIR}/cfe-${LIB_VERSION}.src.tar.xz

	tar -xJf ${WORK_DIR}/clang-tools-extra-${LIB_VERSION}.src.tar.xz

	tar -xJf ${WORK_DIR}/compiler-rt-${LIB_VERSION}.src.tar.xz

	mv ${WORK_DIR}/llvm-${LIB_VERSION}.src ${WORK_DIR}/llvm

	mv ${WORK_DIR}/cfe-${LIB_VERSION}.src ${WORK_DIR}/llvm/tools/clang

	mv ${WORK_DIR}/clang-tools-extra-${LIB_VERSION}.src llvm/tools/clang/tools/extra

	mv ${WORK_DIR}/compiler-rt-${LIB_VERSION}.src llvm/projects/compiler-rt

    fi

    if [[ ! -d $BUILD_DIR ]]; then

	mkdir $BUILD_DIR

    fi

    cd $BUILD_DIR

    cmake  -DCMAKE_BUILD_TYPE=Release \

	   -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR} \

	   -DGCC_INSTALL_PREFIX=${GCC_DIR} \

	   -DCMAKE_C_COMPILER=`which gcc` \

	   -DCMAKE_CXX_COMPILER=`which g++` \

	   -DBUILD_SHARED_LIBS=ON \

	   -DLLVM_BUILD_TOOLS=OFF \

	   -DCLANG_INCLUDE_DOCS=OFF \

	   -DCLANG_INCLUDE_TESTS=OFF \

	   ${WORK_DIR}/llvm || exit 1

    make -j || exit 1

    make -j install || exit 1

}

install_module()

{

    cd $SCRIPT_DIR

    mkdir -p ${MODULE_DIR}

    export LIB_NAME

    export LIB_VERSION

    export INSTALL_DIR

    envtpl  --keep-template -o $MODULE_PATH module.tmpl

}

if [[ $1 == "module" ]]

then

    install_module

else

    install_lib

    install_module

fi

#%Module1.0#####################################################################

###

### {{ LIB_NAME }} {{ LIB_VERSION }} module

###

proc ModulesHelp { } {

    global version prefix

    puts stderr "\tcompilers/{{ LIB_NAME }}/{{ LIB_VERSION }} - loads {{ LIB_NAME }} {{ LIB_VERSION }} and its environment"

}

module-whatis   "Loads {{ LIB_NAME }} {{ LIB_VERSION }} and its environment"

# for Tcl script use only

set version     {{ LIB_VERSION }}

set prefix      {{ INSTALL_DIR }}

prepend-path CMAKE_PREFIX_PATH $prefix

prepend-path PATH $prefix/bin

prepend-path LD_LIBRARY_PATH $prefix/lib

prepend-path MANPATH $prefix/share/man

unsetenv LANGUAGE

unsetenv LANG

unsetenv LC

setenv CC $prefix/bin/clang

setenv CXX $prefix/bin/clang++