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#!/bin/sh
set -e
if test -n "$BASH_VERSION"; then set -o posix; fi
# See https://www.gnu.org/prep/standards/html_node/Directory-Variables.html
prefix=/usr/local
exec_prefix='$(PREFIX)'
exec_suffix=
bindir='$(EXEC_PREFIX)/bin'
verbose=0
main() {
parseArgs "$@"
printMakefile > Makefile
}
printHelp() {
echo ''
echo "Example usage: $0 --prefix /usr/local"
echo ''
echo 'Options:'
echo ' --prefix "/usr/local"'
echo ' --exec-prefix "$(PREFIX)"'
echo ' --exec-suffix ""'
echo ' --bindir "$(EXEC_PREFIX)/bin"'
echo ' --verbose 0'
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; ;;
--verbose) verbose="$2" shift; shift; ;;
*) echo "[ERROR] Unexpected argument: $1"; exit 1 ;;
esac
done
if test "$verbose" != "0" -a "$verbose" != "1"; then
echo "[ERROR] verbose expected to be 0 or 1. But is: $verbose";
false;
fi
}
printMakefile () {
printf '\n'
printf '%s\n' '# This file is generated by configure script. Manual changes may be lost'
printf '%s\n' '# when calling configure again.'
printf '\n'
printf '%s\n' 'CC=gcc'
printf '%s\n' 'LD=gcc'
printf '%s\n' 'TAR=tar'
printf '%s\n' 'MKDIRS=mkdir -p'
printf '%s\n' 'RIMRAF=rm -rf'
printf '%s\n' 'COPYTO=cp -t'
printf '%s\n' "PREFIX=$prefix"
printf '%s\n' "EXEC_PREFIX=$exec_prefix"
printf '%s\n' "EXEC_SUFFIX=$exec_suffix"
printf '%s\n' "BINDIR=$bindir"
# If PROJECT_VERSION set, use it.
# If not, try generate via git describe.
# If fails (eg git not avail), create pseudo version using date.
printf '%s' 'PROJECT_VERSION=$(shell'
printf '%s' ' ret=$$(git describe --tags 2>/dev/null |sed -E "s;^v;;");'
printf '%s' ' if test -n "$$ret" -a -n "$$(git status --porcelain 2>/dev/null)"; then'
printf '%s' ' ret="$$ret+dirt";'
printf '%s' ' fi;'
printf '%s' ' if test -z "$$ret"; then ret=$$(date -u +0.0.0-%Y%m%d.%H%M%S); fi;'
printf '%s\n' ' echo "$$ret")'
printf '\n'
printf '%s' 'CFLAGS= --std=c99 -Wall -Wextra -Werror -Isrc/bulk_ln -Isrc/common -Os -DPROJECT_VERSION=$(PROJECT_VERSION)'
printf '%s\n' ''
printf '%s\n' 'LDFLAGS= -Wl,--fatal-warnings,--gc-sections,--as-needed -s'
if test "$verbose" = "0"; then
printf '\n'
printf '%s\n' '.SILENT:';
fi
printf '\n'
printf '%s\n' 'default: link dist'
printf '\n'
printf '%s\n' '.PHONY: clean'
printf '%s\n' 'clean:'
printf '%s\n' ' echo $(RIMRAF) build dist'
printf '%s\n' ' $(RIMRAF) build dist'
printf '\n'
printf '%s\n' '.PHONY: link'
printf '%s\n' 'link: build/bin/bulk-ln$(EXEC_SUFFIX)'
printf '\n'
printf '%s\n' 'build/obj/%.o: src/%.c'
printf '%s\n' ' echo " CC $@"'
printf '%s\n' ' $(MKDIRS) "$(shell T=$@; echo $${T%/*})"'
printf '%s\n' ' $(CC) -c -o $@ $^ $(CFLAGS)'
printf '\n'
printf '%s' 'build/bin/bulk-ln$(EXEC_SUFFIX):'
# dependencies
printf '%s' ' build/obj/bulk_ln/bulk_ln.o'
printf '%s' ' build/obj/bulk_ln/bulk_ln_main.o'
printf '\n' # commands
printf '%s\n' ' echo " LN $@"'
printf '%s\n' ' $(MKDIRS) "$(shell T=$@; echo $${T%/*})"'
printf '%s\n' ' $(LD) -o $@ $(LDFLAGS) $^'
printf '\n'
printf '%s\n' '.PHONY: dist'
printf '%s\n' 'dist: link'
printf '%s\n' ' echo " Package"'
printf '%s\n' ' $(RIMRAF) build/dist-* dist'
printf '%s\n' ' $(MKDIRS) dist'
# Create Executable bundle.
printf '%s\n' ' $(MKDIRS) build/dist-bin && $(COPYTO) build/dist-bin \'
printf '%s\n' ' README*'
printf '%s\n' ' $(MKDIRS) build/dist-bin/bin && $(COPYTO) build/dist-bin/bin \'
printf '%s\n' ' build/bin/*'
printf '%s\n' ' (cd build/dist-bin && find . -type f -not -name MD5SUM -exec md5sum -b {} +) > build/dist-bin/MD5SUM'
printf '%s\n' ' (cd build/dist-bin && $(TAR) --owner=0 --group=0 -czf "../../dist/BulkLn-$(PROJECT_VERSION).tgz" *)'
printf '%s\n' ' echo "" && echo "See '\''./dist/'\'' for result." && echo ""'
printf '%s' ' if test -n "$$(git status --porcelain 2>/dev/null)"; then'
printf '%s' ' echo "[WARN ] Worktree dirty!"; sleep 2;'
printf '%s\n' ' fi'
printf '\n'
printf '%s\n' '.PHONY: install'
printf '%s\n' 'install:'
printf '%s\n' ' $(MKDIRS) "$(BINDIR)"'
printf '%s\n' ' $(TAR) --strip-components=1 -C "$(BINDIR)" -xzf "$(shell ls dist/BulkLn-*.tgz)" -- bin'
}
main "$@"
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