Check libpng directly into third_party/

third_party/libpng/scripts/makefile.openbsd

+# makefile for libpng
+# Copyright (C) 2007-2009, 2014 Glenn Randers-Pehrson
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+#
+# This code is released under the libpng license.
+# For conditions of distribution and use, see the disclaimer
+# and license in png.h
+
+PREFIX?= /usr/local
+LIBDIR= ${PREFIX}/lib
+MANDIR= ${PREFIX}/man/cat
+
+SHLIB_MAJOR=    16
+SHLIB_MINOR=    1.6.22rc01
+
+LIB=    png
+SRCS=   png.c pngerror.c pngget.c pngmem.c pngpread.c \
+        pngread.c pngrio.c pngrtran.c pngrutil.c pngset.c pngtrans.c \
+        pngwio.c pngwrite.c pngwtran.c pngwutil.c
+
+HDRS=   png.h pngconf.h pnglibconf.h
+
+CFLAGS+= -W -Wall
+CPPFLAGS+= -I${.CURDIR}
+
+NOPROFILE= Yes
+
+CLEANFILES+= pngtest.o pngtest pnglibconf.h
+
+MAN=    libpng.3 libpngpf.3 png.5
+DOCS=   ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+        libpng-manual.txt
+
+# Pre-built configuration
+# See scripts/pnglibconf.mak for more options
+PNGLIBCONF_H_PREBUILT= scripts/pnglibconf.h.prebuilt
+
+.c.o:
+        $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
+
+pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
+        cp $(PNGLIBCONF_H_PREBUILT) $@
+
+pngtest.o:      pngtest.c
+        ${CC} ${CPPFLAGS} ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+
+pngtest:        pngtest.o
+        ${CC} ${LDFLAGS} ${.ALLSRC} -o ${.TARGET} -L${.OBJDIR} -lpng -lz -lm
+
+test:   pngtest
+        cd ${.OBJDIR} && env \
+                LD_LIBRARY_PATH="${.OBJDIR}" ${.OBJDIR}/pngtest
+
+beforeinstall:
+        if [ ! -d ${DESTDIR}${PREFIX}/include/libpng ]; then \
+          ${INSTALL} -d -o root -g wheel ${DESTDIR}${PREFIX}/include; \
+        fi
+        if [ ! -d ${DESTDIR}${LIBDIR} ]; then \
+          ${INSTALL} -d -o root -g wheel ${DESTDIR}${LIBDIR}; \
+        fi
+        if [ ! -d ${DESTDIR}${LIBDIR}/debug ]; then \
+          ${INSTALL} -d -o root -g wheel ${DESTDIR}${LIBDIR}/debug; \
+        fi
+        if [ ! -d ${DESTDIR}${MANDIR}3 ]; then \
+          ${INSTALL} -d -o root -g wheel ${DESTDIR}${MANDIR}3; \
+        fi
+        if [ ! -d ${DESTDIR}${MANDIR}5 ]; then \
+          ${INSTALL} -d -o root -g wheel ${DESTDIR}${MANDIR}5; \
+        fi
+        if [ ! -d ${DESTDIR}${PREFIX}/share/doc/png ]; then \
+          ${INSTALL} -d -o root -g wheel ${DESTDIR}${PREFIX}/share/doc/png; \
+        fi
+
+afterinstall:
+        @rm -f ${DESTDIR}${LIBDIR}/libpng_pic.a
+        @rm -f ${DESTDIR}${LIBDIR}/debug/libpng.a
+        @rm -f ${DESTDIR}${PREFIX}/include/png.h
+        @rm -f ${DESTDIR}${PREFIX}/include/pngconf.h
+        @rm -f ${DESTDIR}${PREFIX}/include/pnglibconf.h
+        @rmdir ${DESTDIR}${LIBDIR}/debug 2>/dev/null || true
+        ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
+                -m ${NONBINMODE} ${HDRS} ${DESTDIR}${PREFIX}/include
+        ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
+                -m ${NONBINMODE} ${HDRS} ${DESTDIR}${PREFIX}/include
+        ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
+                -m ${NONBINMODE} ${DOCS} ${DESTDIR}${PREFIX}/share/doc/png
+
+.include <bsd.lib.mk>