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# $FreeBSD$
#
# This file contains logic to ease porting of Go binaries using the
# `go` command.
#
# Feature: go
# Usage: USES=go
# Valid ARGS: (none), modules
#
# (none) Setup GOPATH and build in GOPATH mode.
# modules If the upstream uses Go modules, this can be set to build
# in modules-aware mode.
#
# You can set the following variables to control the process.
#
# GO_PKGNAME
# The name of the package. When building in GOPATH mode, this is
# the directory that will be created in GOPATH/src and seen by the
# `go` command. When building in modules-aware mode, no directories
# will be created and GO_PKGNAME value will be only used as a default
# for GO_TARGET. If not set explicitly and GH_SUBDIR is present,
# GO_PKGNAME will be inferred from GH_SUBDIR.
#
# GO_TARGET
# The names of the package(s) to build. If not set explicitly,
# defaults to GO_PKGNAME.
#
# CGO_CFLAGS
# Addional CFLAGS variables to be passed to the C compiler by the `go`
# command
#
# CGO_LDFLAGS
# Addional LDFLAGS variables to be passed to the C compiler by the `go`
# command
#
# GO_BUILDFLAGS
# Additional build arguments to be passed to the `go install` command
#
# MAINTAINER: jlaffaye@FreeBSD.org
.if !defined(_INCLUDE_USES_GO_MK)
_INCLUDE_USES_GO_MK= yes
.if !empty(go_ARGS) && ${go_ARGS:Nmodules}
IGNORE= USES=go only accepts no arguments or 'modules'
.endif
# Settable variables
.if empty(GO_PKGNAME)
. if !empty(GH_SUBDIR)
GO_PKGNAME= ${GH_SUBDIR:S|^src/||}
. else
GO_PKGNAME= ${PORTNAME}
. endif
.endif
GO_TARGET?= ${GO_PKGNAME}
GO_BUILDFLAGS+= -v -buildmode=exe
CGO_ENABLED?= 1
CGO_CFLAGS+= -I${LOCALBASE}/include
CGO_LDFLAGS+= -L${LOCALBASE}/lib
.if ${ARCH} == armv6 || ${ARCH} == armv7
GOARM?= ${ARCH:C/armv//}
.endif
# Read-only variables
GO_CMD= ${LOCALBASE}/bin/go
GO_WRKDIR_BIN= ${WRKDIR}/bin
GO_ENV+= CGO_ENABLED=${CGO_ENABLED} \
CGO_CFLAGS="${CGO_CFLAGS}" \
CGO_LDFLAGS="${CGO_LDFLAGS}" \
GOARM=${GOARM}
.if ${go_ARGS:Mmodules}
GO_BUILDFLAGS+= -mod=vendor
GO_WRKSRC= ${WRKSRC}
GO_ENV+= GOPATH="" \
GOBIN="${GO_WRKDIR_BIN}"
.else
GO_WRKDIR_SRC= ${WRKDIR}/src
GO_WRKSRC= ${GO_WRKDIR_SRC}/${GO_PKGNAME}
GO_ENV+= GOPATH="${WRKDIR}" \
GOBIN=""
.endif
BUILD_DEPENDS+= ${GO_CMD}:lang/go
PLIST_SUB+= GO_PKGNAME=${GO_PKGNAME}
_USES_POST+= go
.endif # !defined(_INCLUDE_USES_GO_MK)
.if defined(_POSTMKINCLUDED) && !defined(_INCLUDE_USES_GO_POST_MK)
_INCLUDE_USES_GO_POST_MK= yes
.if !target(post-extract) && empty(go_ARGS)
post-extract:
@${MKDIR} ${GO_WRKSRC:H}
@${LN} -sf ${WRKSRC} ${GO_WRKSRC}
.endif
.if !target(do-build)
do-build:
(cd ${GO_WRKSRC}; \
${SETENV} ${MAKE_ENV} ${GO_ENV} ${GO_CMD} install ${GO_BUILDFLAGS} ${GO_TARGET})
.endif
.if !target(do-install)
do-install:
.for _TARGET in ${GO_TARGET}
${INSTALL_PROGRAM} ${GO_WRKDIR_BIN}/${_TARGET:T} ${STAGEDIR}${PREFIX}/bin
.endfor
.endif
.endif # defined(_POSTMKINCLUDED) && !defined(_INCLUDE_USES_GO_POST_MK)
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