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# Makefile for SNG
#
# SPDX-FileCopyrightText: (C) Eric S. Raymond <esr@thyrsus.com>
# SPDX-License-Identifier: BSD-2-Clause
VERSION=$(shell sed -n <NEWS.adoc '/::/s/^\([0-9][^:]*\).*/\1/p' | head -1)
RGBTXT=/usr/share/X11/rgb.txt
.PATH: $(.PARSEDIR)
prefix?=/usr/local
target=$(DESTDIR)$(prefix)
parsedir:=$(.PARSEDIR)
srcdir=$(dir $(abspath $(firstword $(MAKEFILE_LIST))))$(parsedir)
VPATH=$(srcdir)
mandir?=$(DESTDIR)$(prefix)/share/man
INSTALL = install
GCC_WARNINGS1=-Wall -Wpointer-arith -Wstrict-prototypes
GCC_WARNINGS2=-Wmissing-prototypes -Wmissing-declarations
GCC_WARNINGS3=-Wno-unused-function -Wno-unused-label -Wno-format-zero-length
GCC_WARNINGS=$(GCC_WARNINGS1) $(GCC_WARNINGS2) $(GCC_WARNINGS3)
CFLAGS += $(GCC_WARNINGS)
CPPFLAGS += -I. -I$(srcdir)
#LIBS=-lrt
CPPFLAGS += -DVERSION=\"$(VERSION)\" -DRGBTXT=\"$(RGBTXT)\"
# First line works for GNU C.
# Replace with the next if your compiler doesn't support C99 restrict qualifier
CPPFLAGS+=-Drestrict=__restrict__
#CPPFLAGS+=-Drestrict=""
# To enable profiling, uncomment the following line
# Note: the profiler gets confused if you don't also turn off -O flags.
# CFLAGS += -pg
# Warning: Using -O3 has been seen to cause core dumps on repositories with
# very long revision names - some bounds check gets optimized away. Don't do that.
# CFLAGS += -O2
# If your toolchain supports link time optimization this is a cheap speedup
# CFLAGS += -flto
CFLAGS += -g
# Test coverage flags
# CFLAGS += -ftest-coverage -fprofile-arcs
CFLAGS += $(EXTRA_CFLAGS)
LDFLAGS += -lpng
OBJS= main.o sngc.o sngd.o
all: sng man html
sng: $(OBJS)
$(CC) $(CFLAGS) $(TARGET_ARCH) $(OBJS) $(LDFLAGS) $(LIBS) -o $@
$(OBJS): sng.h Makefile
# Note: to suppress the footers with timestamps being generated in HTML,
# we use "-a nofooter".
# To debug asciidoc problems, you may need to run "xmllint --nonet --noout --valid"
# on the intermediate XML that throws an error.
.SUFFIXES: .html .adoc .1
.adoc.1:
asciidoctor -D. -a nofooter -b manpage $<
.adoc.html:
asciidoctor -D. -a nofooter -a webfonts! $<
docdebug:
xmllint --nonet --noout --valid sng.xml
man: sng.1
html: sng.html
clean:
rm -f $(OBJS) sng
rm -f *.1 *.html gmon.out
rm -f MANIFEST index.html *.tar.gz
rm -f *.gcno *.gcda
shellcheck:
@-shellcheck -s sh -f gcc sng_regress
# Regression-test sng. Passes if no differences show up.
# Assumes we have a copy of Willem van Schaik's PNG test suite under pngsuite
check: sng shellcheck
@./sng_regress test.sng pngsuite/[a-wyz]*.png
@echo "No output is good news."
reflow:
@clang-format --style="{IndentWidth: 8, UseTab: ForIndentation}" -i $$(find . -name "*.[ch]")
fixme:
@if command -v rg; then \
rg --no-heading FIX''ME; \
else \
find . -type f -exec grep -n FIX''ME {} /dev/null \; | grep -v "[.]git"; \
fi
install: install-bin install-man
install-bin: sng
$(INSTALL) -d "$(target)/bin"
$(INSTALL) $^ "$(target)/bin"
install-man: man
$(INSTALL) -d "$(mandir)/man1"
$(INSTALL) -m 644 sng.1 "$(mandir)/man1"
uninstall: uninstall-man uninstall-bin
uninstall-man:
cd $(mandir)/man1/ && rm -f sng.1
uninstall-bin:
cd $(target)/bin && rm -f sng
version:
@echo $(VERSION)
cppcheck:
cppcheck -I. --template=gcc --enable=all --suppress=missingIncludeSystem --inline-suppr *.[ch]
SOURCES = Makefile *.[ch]
DOCS = control *.adoc snglogo.png
ALL = $(SOURCES) $(DOCS)
sng-$(VERSION).tar.gz: $(ALL) sng.1
(git ls-files; ls *.1) | sed s:^:sng-$(VERSION)/: >MANIFEST
(cd ..; ln -s sng sng-$(VERSION))
(cd ..; tar -cJf sng/sng-$(VERSION).tar.xz `cat sng/MANIFEST`)
(cd ..; rm sng-$(VERSION) sng/MANIFEST)
dist: clean sng-$(VERSION).tar.gz
release: sng-$(VERSION).tar.gz html
shipper version=$(VERSION) | sh -e -x
refresh: html
shipper -N -w version=$(VERSION) | sh -e -x
# end
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