# Makefile for rasgen
#
# @(#)$Id: Makefile,v 1.2 2018/09/28 05:49:13 jneitzel Exp $
#
# Begin CONFIGURATION
#
# See the README file for build and install instructions.
#

#
# Choose where and how to install the binary and manual page.
#
DESTDIR?=
PREFIX?=	/usr/local
BINDIR?=	$(PREFIX)/bin
MANDIR?=	$(PREFIX)/man/man1
BINMODE=	-m 0555
MANMODE=	-m 0444

#
# Build utilities (SHELL must be POSIX-compliant)
#
CC?=
INSTALL?=	/usr/bin/install
SHELL=		/bin/sh

BIN=		rasgen
MAN=		$(BIN).1
SRC=		$(BIN).c

#
# Preprocessor, compiler, and linker flags
#
#	If the compiler gives errors about any of flags specified
#	by `OPTIONS' or `WARNINGS' below, comment the appropriate
#	line(s) with a `#' character to fix the compiler errors.
#	Then, try to build again by doing a `make clean ; make'.
#
#CPPFLAGS=
OPTIONS=	-std=c99 -pedantic
WARNINGS=	-Wall -Wextra
# NOTE: It seems that -Wno-unused-result first appeared in gcc-4.4.0 .
#WARNINGS=	-Wno-unused-result
#WARNINGS+=	-Wshorten-64-to-32
CFLAGS+=	$(OPTIONS) $(WARNINGS)
#LDFLAGS+=	-static

#SPLINT=splint
SPLINT=:
SPARGS=-unrecog +posixlib

#
# End CONFIGURATION
#

#
# Build targets
#
all: $(BIN)

config.h: Makefile mkconfig
	$(SHELL) ./mkconfig

$(BIN): $(SRC) config.h
	if ! $(SPLINT) $(SPARGS) $(SRC) ; then exit 0 ; fi
	$(CC) $(CFLAGS) $(CPPFLAGS) -o $(BIN) $(SRC) $(LIBS)

#
# Install targets
#
install: all
	test -d $(DESTDIR)$(BINDIR) || { \
		umask 0022 ; mkdir -p $(DESTDIR)$(BINDIR) ; \
	}
	test -d $(DESTDIR)$(MANDIR) || { \
		umask 0022 ; mkdir -p $(DESTDIR)$(MANDIR) ; \
	}
	$(INSTALL) -c -s $(BINMODE) $(BIN) $(DESTDIR)$(BINDIR)
	$(INSTALL) -c    $(MANMODE) $(MAN) $(DESTDIR)$(MANDIR)

#
# Cleanup targets
#
clean:
	rm -f $(BIN) config.h