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Remove mk/find-prefix.mk usage from the lang category.

The find-prefix infrastructure was required in a pkgviews world where
packages installed from pkgsrc could have different installation
prefixes, and this was a way for a dependency prefix to be determined.

Now that pkgviews has been removed there is no longer any need for the
overhead of this infrastructure.  Instead we use BUILDLINK_PREFIX.pkg
for dependencies pulled in via buildlink, or LOCALBASE/PREFIX where the
dependency is coming from pkgsrc.

Provides a reasonable performance win due to the reduction of `pkg_info
-qp` calls, some of which were redundant anyway as they were duplicating
the same information provided by BUILDLINK_PREFIX.pkg.

# $NetBSD: Makefile,v 1.21 2015/11/25 12:51:16 jperkin Exp $

GCC_PKGNAME=	gcc48
.include	"../../lang/${GCC_PKGNAME}/version.mk"

DISTNAME=	gcc-${GCC48_DIST_VERSION}
PKGNAME=	${GCC_PKGNAME}-libs-${GCC48_DIST_VERSION}
## The PKGREVISION of this package needs to be at least 1 more than the
## PKGREVISION of the lang/gcc48 package so that with the dependence pattern
## '{gcc48,gcc48-libs}>=4.8.*' pkg_all will choose gcc48-libs over gcc48.
PKGREVISION=	1
CATEGORIES=	lang
MASTER_SITES=	# empty
DISTFILES=	# empty

MAINTAINER=	sbd@NetBSD.org
HOMEPAGE=	http://gcc.gnu.org/
COMMENT=	The GNU Compiler Collection (GCC) support shared libraries.
LICENSE=	gnu-gpl-v2 AND gnu-gpl-v3 AND gnu-lgpl-v2 AND gnu-lgpl-v3

USE_TOOLS+=	pax

NO_BUILD=	yes
CHECK_SHLIBS=	no

## Depend on exactly ${GCC48_DIST_VERSION}.
BUILD_DEPENDS+=		${GCC_PKGNAME}-${GCC48_DIST_VERSION}{,nb[0-9]*}:../../lang/gcc48

.include "../../mk/bsd.prefs.mk"

LIBGCC_SUBPREFIX=	${GCC_PKGNAME}
LIBGCC_PREFIX=		${LOCALBASE}/${LIBGCC_SUBPREFIX}
GCC_TARGET_MACHINE?=	${MACHINE_GNU_PLATFORM}
BUILD_DEFS+=		GCC_TARGET_MACHINE

.include "../../mk/bsd.prefs.mk"
.if ${_OPSYS_SHLIB_TYPE} == "dylib"
SHLIB_EXT=	dylib
.else
SHLIB_EXT=	so
.endif

LIBRARY_FILES=	${WRKDIR}/lib_files

GENERATE_PLIST+= ${SED} -e 's,^,${LIBGCC_SUBPREFIX}/${GCC_TARGET_MACHINE}/,' \
			${LIBRARY_FILES};
GENERATE_PLIST+= ${GREP} -q 'lib/' ${LIBRARY_FILES} || \
	   ${ECHO} '@pkgdir ${LIBGCC_SUBPREFIX}/${GCC_TARGET_MACHINE}/lib' ;

${LIBRARY_FILES}:
	${PKG_INFO} -qL '${GCC_PKGNAME}-${GCC48_DIST_VERSION}*' |	\
	${SED} -n -e's,^${LIBGCC_PREFIX}/,,' -e'/libexec\//d'		\
		-e'/libgcj/d;/libgij/d;/libgo\./d;/libjvm/d'		\
		-e'/lib.*\.${SHLIB_EXT}/p' 		>${LIBRARY_FILES}

do-install: ${LIBRARY_FILES}
	${TEST} -d ${DESTDIR}${LIBGCC_PREFIX}/${GCC_TARGET_MACHINE}/lib || \
		${MKDIR} ${DESTDIR}${LIBGCC_PREFIX}/${GCC_TARGET_MACHINE}/lib
	cd ${LIBGCC_PREFIX} && 						\
	  ${PAX} -rw ${DESTDIR}${LIBGCC_PREFIX}/${GCC_TARGET_MACHINE} <${LIBRARY_FILES}

.include "../../mk/dlopen.buildlink3.mk"
.include "../../mk/pthread.buildlink3.mk"
.include "../../mk/bsd.pkg.mk"