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# $NetBSD: buildlink.mk,v 1.1 2001/05/26 08:10:42 jlam Exp $
#
# This Makefile fragment is included by packages that use libpng.
#
# To use this Makefile fragment, simply:
#
# (1) Optionally define PNG_REQD to the version of libpng desired.
# (2) Include this Makefile fragment in the package Makefile,
# (3) Optionally define BUILDLINK_INCDIR and BUILDLINK_LIBDIR,
# (4) Add ${BUILDLINK_TARGETS} to the prerequisite targets for pre-configure,
# (5) Add ${BUILDLINK_INCDIR} to the front of the C preprocessor's header
# search path, and
# (6) Add ${BUILDLINK_LIBDIR} to the front of the linker's library search
# path.
.if !defined(PNG_BUILDLINK_MK)
PNG_BUILDLINK_MK= # defined
PNG_REQD?= 1.0.11
DEPENDS+= png>=${PNG_REQD}:../../graphics/png
PNG_HEADERS= ${LOCALBASE}/include/png.h
PNG_HEADERS+= ${LOCALBASE}/include/pngconf.h
PNG_LIBS= ${LOCALBASE}/lib/libpng.*
BUILDLINK_INCDIR?= ${WRKDIR}/include
BUILDLINK_LIBDIR?= ${WRKDIR}/lib
BUILDLINK_TARGETS+= link-png-headers
BUILDLINK_TARGETS+= link-png-libs
# This target links the headers into ${BUILDLINK_INCDIR}, which should
# be searched first by the C preprocessor.
#
link-png-headers:
@${ECHO} "Linking png headers into ${BUILDLINK_INCDIR}."
@${MKDIR} ${BUILDLINK_INCDIR}
@for inc in ${PNG_HEADERS}; do \
dest=${BUILDLINK_INCDIR}/`${BASENAME} $${inc}`; \
if [ -f $${inc} ]; then \
${RM} -f $${dest}; \
${LN} -sf $${inc} $${dest}; \
fi; \
done
# This target links the libraries into ${BUILDLINK_LIBDIR}, which should
# be searched first by the linker.
#
link-png-libs:
@${ECHO} "Linking png libraries into ${BUILDLINK_LIBDIR}."
@${MKDIR} ${BUILDLINK_LIBDIR}
@for lib in ${PNG_LIBS}; do \
dest=${BUILDLINK_LIBDIR}/`${BASENAME} $${lib}`; \
if [ -f $${lib} ]; then \
${RM} -f $${dest}; \
${LN} -sf $${lib} $${dest}; \
fi; \
done
.endif # PNG_BUILDLINK_MK
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