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#!/usr/bin/env sh
set -e
# See https://www.gnu.org/prep/standards/html_node/Directory-Variables.html
prefix=/usr/local
exec_prefix='$(PREFIX)'
exec_suffix=
bindir='$(EXEC_PREFIX)/bin'
main() {
parseArgs "$@"
mangleMakefile
}
printHelp() {
echo ''
echo "Example usage: $0 --prefix /usr/local"
echo ''
echo 'Options:'
echo ' --prefix <path> Default "/usr/local"'
echo ' --exec-prefix <path> Default "$(PREFIX)"'
echo ' --exec-suffix <path> Default <empty>'
echo ' --bindir <path> Default "$(EXEC_PREFIX)/bin"'
echo ''
}
parseArgs() {
# See: https://stackoverflow.com/a/14203146/4415884
while test $# -gt 0 ; do
case $1 in
--help) printHelp; exit 1; ;;
--prefix) prefix="$2" shift; shift; ;;
--exec-prefix) exec_prefix="$2" shift; shift; ;;
--exec-suffix) exec_suffix="$2" shift; shift; ;;
--bindir) bindir="$2" shift; shift; ;;
*) echo "[ERROR] Unexpected argument: $1"; exit 1 ;;
esac
done
}
mangleMakefile() {
sed -i 's;^PREFIX=.*$;PREFIX='"$prefix"';' Makefile
sed -i 's;^EXEC_PREFIX=.*$;EXEC_PREFIX='"$exec_prefix"';' Makefile
sed -i 's;^EXEC_SUFFIX=.*$;EXEC_SUFFIX='"$exec_suffix"';' Makefile
sed -i 's;^BINDIR=.*$;BINDIR='"$bindir"';' Makefile
}
main "$@"
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