# $NetBSD: build.mk,v 1.11 2023/11/20 09:51:48 nia Exp $
#
# This Makefile fragment supports building using the CMake build tool.
#
# User-settable variables:
#
# CMAKE_GENERATOR
#	Which build tool to use.
#
#	Possible: make ninja
#	Default: make
#
# Package-settable variables:
#
# CMAKE_CONFIGURE_ARGS
#	Arguments to pass to CMake during the configure stage. Defaults
#	to CMAKE_ARGS for backwards compatibility with USE_CMAKE.
#
# CMAKE_BUILD_ARGS
#	Arguments to pass to CMake during build. Default: empty
#
# CMAKE_INSTALL_ARGS
#	Arguments to pass to CMake during installation: Default: empty
#
# CONFIGURE_DIR
#	Directory relative to WRKSRC in which to run CMake. Usually
#	the top-level one.
#
# BUILD_DIRS
#	Directories relative to WRKSRC/CMAKE_BUILD_DIR in which to build.
#	Defaults to WRKSRC/CMAKE_BUILD_DIR.
#
# TEST_DIRS
#	Directories relative to WRKSRC/CMAKE_BUILD_DIR in which to run the
#	tests. Defaults to WRKSRC/CMAKE_BUILD_DIR.
#
# INSTALL_DIRS
#	Directories relative to WRKSRC/CMAKE_BUILD_DIR in which to run the
#	'install' step. Defaults to WRKSRC/CMAKE_BUILD_DIR.

CMAKE_REQD?=	0
.for version in ${CMAKE_REQD}
TOOL_DEPENDS+=	cmake>=${version}:../../devel/cmake
.endfor

# Declare that this package is using cmake, for bl3 files to know
# to add to CMAKE_CONFIGURE_ARGS.
BUILD_USES_CMAKE=	yes

CMAKE_CONFIGURE_ARGS?=	${CMAKE_ARGS}

CONFIGURE_ENV+=		BUILDLINK_DIR=${BUILDLINK_DIR}

CMAKE_BUILD_DIR?=	cmake-pkgsrc-build
CMAKE_GENERATOR?=	make
CMAKE_BUILD_ARGS?=	-j ${_MAKE_JOBS_N:U1}
CMAKE_INSTALL_ARGS?=	# empty
.if ${CMAKE_GENERATOR} == "ninja"
TOOL_DEPENDS+=		ninja-build-[0-9]*:../../devel/ninja-build
_CMAKE_BUILD_SYSTEM?=	Ninja
_CMAKE_BUILD_TOOL?=	ninja
.else
_CMAKE_BUILD_SYSTEM?=	Unix Makefiles
_CMAKE_BUILD_TOOL?=	${MAKE_PROGRAM}
.endif

CONFIGURE_DIR?=		.
BUILD_DIRS?=		${CONFIGURE_DIR}
TEST_DIRS?=		${CONFIGURE_DIR}
INSTALL_DIRS?=		${CONFIGURE_DIR}

_CMAKE_CONFIGURE_SETTINGS=	yes

.PHONY: cmake-configure cmake-build cmake-test cmake-install

.if !target(do-configure)
do-configure: cmake-configure
cmake-configure:
	${RUN} cd ${WRKSRC}/${CONFIGURE_DIR} && \
		${SETENV} ${CONFIGURE_ENV} cmake \
		--install-prefix ${PREFIX} \
		-B ${CMAKE_BUILD_DIR} \
		-G ${_CMAKE_BUILD_SYSTEM:Q} \
		${CMAKE_CONFIGURE_ARGS}
.endif

.if !target(do-build)
do-build: cmake-build
cmake-build:
.  for d in ${BUILD_DIRS}
	${RUN} cd ${WRKSRC}/${d}/${CMAKE_BUILD_DIR} && \
		${SETENV} ${MAKE_ENV} \
		${_CMAKE_BUILD_TOOL} ${CMAKE_BUILD_ARGS} ${BUILD_TARGET}
.  endfor
.endif

.if !target(do-test)
do-test: cmake-test
cmake-test:
.  for d in ${TEST_DIRS}
	${RUN} cd ${WRKSRC}/${d}/${CMAKE_BUILD_DIR} && \
		${SETENV} ${TEST_ENV} \
		${_CMAKE_BUILD_TOOL} ${CMAKE_BUILD_ARGS} ${TEST_TARGET}
.  endfor
.endif

.if !target(do-install)
do-install: cmake-install
cmake-install:
.  for d in ${INSTALL_DIRS}
	${RUN} cd ${WRKSRC}/${d}/${CMAKE_BUILD_DIR} && \
		${SETENV} ${INSTALL_ENV} \
		${_CMAKE_BUILD_TOOL} ${CMAKE_INSTALL_ARGS} ${INSTALL_TARGET}
.  endfor
.endif

_VARGROUPS+=		cmake
_USER_VARS.cmake+=	CMAKE_GENERATOR
_PKG_VARS.cmake+=	CMAKE_REQD
_PKG_VARS.cmake+=	CMAKE_CONFIGURE_ARGS CONFIGURE_DIR
_PKG_VARS.cmake+=	CMAKE_BUILD_ARGS BUILD_DIRS BUILD_TARGET
_PKG_VARS.cmake+=	TEST_DIRS TEST_TARGET
_PKG_VARS.cmake+=	CMAKE_INSTALL_ARGS INSTALL_DIRS INSTALL_TARGET
_SYS_VARS.cmake+=	CMAKE_BUILD_DIR
_USE_VARS.cmake+=	CMAKE_ARGS
_USE_VARS.cmake+=	CONFIGURE_ENV MAKE_ENV TEST_ENV INSTALL_ENV
_IGN_VARS.cmake+=	BUILDLINK_DIR WRKSRC PREFIX
_IGN_VARS.cmake+=	BUILD_USES_CMAKE SETENV TOOL_DEPENDS
_IGN_VARS.cmake+=	_CMAKE_BUILD_SYSTEM _CMAKE_BUILD_TOOL _MAKE_JOBS_N
_IGN_VARS.cmake+=	_CMAKE_CONFIGURE_SETTINGS
_LISTED_VARS.cmake+=	*_ARGS
_SORTED_VARS.cmake+=	*_ENV