configure

#!/bin/sh
# Shell script for configuring Sirocco radiative transfer code compilation
# James Matthews, University of Southampton
# Questions: jm8g08@soton.ac.uk
# Usage: ./configure

# Parse any command line arguments or switches
while [ $# -gt 0 ]; do
    case "$1" in
        --with-cuda)
			with_cuda=true
            shift
            ;;
        *)
            printf "Unknown option: $1\n"
            exit 1
            ;;
    esac
done

printf "Configuring Makefile for Python radiative transfer code\n"

printf "Checking for mpicc..."
if hash mpicc 2>/dev/null; then
	printf "yes\n"
	MPICC_IN=1
else
	printf "no\n"
	MPICC_IN=0
fi


printf "Checking for gcc..."
if hash gcc 2>/dev/null; then
	printf "yes\n"
	GCC_IN=1
else
	printf "no\n"
	GCC_IN=0
fi

# when --with-cuda is enabled, we gotta do something to modify the Makefiles
if [ "$with_cuda" = true ]; then
	printf "Checking for nvcc..."
	if hash nvcc 2>/dev/null; then
		printf "yes\n"
		sed -i -e "s/^NVCC =.*/NVCC = nvcc/" source/Makefile
	else
		printf "no\n"
		sed -i -e "s/^NVCC =.*/NVCC = /" source/Makefile
	fi
else
	sed -i -e "s/^NVCC =.*/NVCC = /" source/Makefile
fi

printf "Preparing Makefile..."

if [ "$MPICC_IN" -eq 0 ]
then
	if [ "$GCC_IN" -eq 1 ]
	then
		cp Makefile.in Makefile
 		sed -i -e 's/mpicc/gcc/' Makefile
 		printf "Done.\n"
	else
		printf "failed.\nNo gcc or mpicc installed. You need a C compiler!\n"
	fi
else
	cp Makefile.in Makefile
	printf "Done.\n"
fi