Add buildlink.mk files that can link headers and libraries into

${BUILDLINK_INCDIR} and ${BUILDLINK_LIBDIR}, for use by other packages
during build.

1 files changed, 72 insertions, 0 deletions

diff --git a/devel/zlib/buildlink.mk b/devel/zlib/buildlink.mk
new file mode 100644
index 00000000000..f052461d5a4
--- /dev/null
+++ b/devel/zlib/buildlink.mk
@@ -0,0 +1,72 @@
+# $NetBSD: buildlink.mk,v 1.1 2001/05/26 16:30:18 jlam Exp $
+#
+# This Makefile fragment is included by packages that use zlib. 
+#
+# To use this Makefile fragment, simply:
+#
+# (1) Optionally define ZLIB_REQD to the version of zlib 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(ZLIB_BUILDLINK_MK)
+ZLIB_BUILDLINK_MK=	# defined
+
+ZLIB_REQD?=		1.1.3
+
+.if exists(/usr/include/zlib.h)
+_NEED_ZLIB=		NO
+.else
+_NEED_ZLIB=		YES
+.endif
+
+.if ${_NEED_ZLIB} == "YES"
+DEPENDS+=		zlib>=${ZLIB_REQD}:../../devel/zlib
+ZLIB_HEADERS=		${LOCALBASE}/include/zconf.h
+ZLIB_HEADERS=		${LOCALBASE}/include/zlib.h
+ZLIB_LIBS=		${LOCALBASE}/lib/libz.*
+.else
+ZLIB_HEADERS=		/usr/include/zconf.h
+ZLIB_HEADERS+=		/usr/include/zlib.h
+ZLIB_LIBS=		/usr/lib/libz.*
+.endif
+
+BUILDLINK_INCDIR?=	${WRKDIR}/include
+BUILDLINK_LIBDIR?=	${WRKDIR}/lib
+
+BUILDLINK_TARGETS+=	link-zlib-headers
+BUILDLINK_TARGETS+=	link-zlib-libs
+
+# This target links the headers into ${BUILDLINK_INCDIR}, which should
+# be searched first by the C preprocessor.
+#
+link-zlib-headers:
+	@${ECHO} "Linking zlib headers into ${BUILDLINK_INCDIR}."
+	@${MKDIR} ${BUILDLINK_INCDIR}
+	@for inc in ${ZLIB_HEADERS}; do					\
+		dest=${BUILDLINK_INCDIR}/`${BASENAME} $${inc}`;		\
+		if [ -f $${inc} ]; then					\
+			${RM} -f $${dest};				\
+			${LN} -sf $${inc} $${dest};			\
+		fi;							\
+	done
+
+# This target links the libraries into ${BUILDLINK_LIBDIR}, which should
+# be searched first by the linker.
+#
+link-zlib-libs:
+	@${ECHO} "Linking zlib libraries into ${BUILDLINK_LIBDIR}."
+	@${MKDIR} ${BUILDLINK_LIBDIR}
+	@for lib in ${ZLIB_LIBS}; do					\
+		dest=${BUILDLINK_LIBDIR}/`${BASENAME} $${lib}`;		\
+		if [ -f $${lib} ]; then					\
+			${RM} -f $${dest};				\
+			${LN} -sf $${lib} $${dest};			\
+		fi;							\
+	done
+
+.endif	# ZLIB_BUILDLINK_MK