sci-libs/med: switch to cmake based build

The patch moves back to the cmake based build used in sci-libs/libmed.
The issues with sci-libs/gmsh not building with cmake built med have
been resolved. See https://bugs.gentoo.org/693146 comments 19-22

Closes: https://bugs.gentoo.org/694468
Package-Manager: Portage-2.3.76, Repoman-2.3.17
Signed-off-by: Bernd Waibel <waebbl@gmail.com>
Closes: https://github.com/gentoo/gentoo/pull/12930
Signed-off-by: Joonas Niilola <juippis@gentoo.org>

5 files changed, 229 insertions, 0 deletions

diff --git a/sci-libs/med/files/med-3.3.1-cmake-fortran.patch b/sci-libs/med/files/med-3.3.1-cmake-fortran.patch
new file mode 100644
index 000000000000..1f475d584843
--- /dev/null
+++ b/sci-libs/med/files/med-3.3.1-cmake-fortran.patch
@@ -0,0 +1,21 @@
+Make cmake properly disable fortran upon user requirments
+
+--- ./CMakeLists.txt.orig	2016-07-01 15:28:57.139304608 +0300
++++ ./CMakeLists.txt	2016-07-01 15:34:22.295899455 +0300
+@@ -8,10 +8,13 @@
+ 
+ INCLUDE(CheckLanguage)
+ CHECK_LANGUAGE(Fortran)
+-IF(CMAKE_Fortran_COMPILER)
++OPTION (MEDFILE_BUILD_FORTRAN "Build fortran library" ON)
++IF(MEDFILE_BUILD_FORTRAN)
+   ENABLE_LANGUAGE(Fortran)
++  IF(NOT CMAKE_Fortran_COMPILER)
++      MESSAGE(FATAL_EROOR "Fortran support was requested but not found")
++  ENDIF()
+ ELSE()
+-  MESSAGE(STATUS "No Fortran support")
+ ENDIF()
+ 
+ ## Version number 
+
diff --git a/sci-libs/med/files/med-3.3.1-disable-python-compile.patch b/sci-libs/med/files/med-3.3.1-disable-python-compile.patch
new file mode 100644
index 000000000000..642b404ba880
--- /dev/null
+++ b/sci-libs/med/files/med-3.3.1-disable-python-compile.patch
@@ -0,0 +1,17 @@
+--- ./config/cmake_files/medMacros.cmake	2016-10-24 09:55:35.000000000 +0200
++++ ./config/cmake_files/medMacros.cmake.new	2018-01-24 10:50:15.146953227 +0100
+@@ -412,9 +412,9 @@
+   FOREACH(input ${PYFILE2COMPINST})
+     GET_FILENAME_COMPONENT(inputname ${input} NAME)
+     INSTALL(FILES ${input} DESTINATION ${CMAKE_INSTALL_PREFIX}/${PYFILELOC})
+-    INSTALL(CODE "MESSAGE(STATUS \"py compiling ${CMAKE_INSTALL_PREFIX}/${PYFILELOC}/${inputname}\")")
+-    INSTALL(CODE "SET(CMD \"import py_compile ; py_compile.compile('${CMAKE_INSTALL_PREFIX}/${PYFILELOC}/${inputname}')\")")
+-    INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -c \"\${CMD}\")")
+-    INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -O -c \"\${CMD}\")")
++	#INSTALL(CODE "MESSAGE(STATUS \"py compiling ${CMAKE_INSTALL_PREFIX}/${PYFILELOC}/${inputname}\")")
++	#INSTALL(CODE "SET(CMD \"import py_compile ; py_compile.compile('${CMAKE_INSTALL_PREFIX}/${PYFILELOC}/${inputname}')\")")
++	#INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -c \"\${CMD}\")")
++	#INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE} -O -c \"\${CMD}\")")
+   ENDFOREACH(input ${PYFILE2COMPINST})
+ ENDMACRO(INSTALL_AND_COMPILE_PYTHON_FILE PYFILE2COMPINST PYFILELOC)
+
diff --git a/sci-libs/med/files/med-4.0.0-cmakelist.patch b/sci-libs/med/files/med-4.0.0-cmakelist.patch
new file mode 100644
index 000000000000..4c023cf24b31
--- /dev/null
+++ b/sci-libs/med/files/med-4.0.0-cmakelist.patch
@@ -0,0 +1,59 @@
+--- a/src/CMakeLists.txt	2018-07-28 16:37:01.180598992 +0200
++++ a/src/CMakeLists.txt.new	2018-07-28 17:14:49.147775461 +0200
+@@ -1,7 +1,3 @@
+-INCLUDE_DIRECTORIES(
+-  ${HDF5_INCLUDE_DIRS}
+-  ${MPI_INCLUDE_DIRS})
+-
+ # On Win platform, we need to make sure symbols are properly exported in
+ # the intermediary OBJECT targes built in the sub-directories:
+ # The definition "-D<target>_EXPORTS" is normally added automatically by CMake
+@@ -19,6 +15,12 @@
+ INCLUDE_DIRECTORIES(${PROJECT_BINARY_DIR}/include 
+     ${PROJECT_SOURCE_DIR}/include)
+
++# these includes must go after project ones to avoid masking by
++# previous versions already installed
++INCLUDE_DIRECTORIES(
++  ${HDF5_INCLUDE_DIRS}
++  ${MPI_INCLUDE_DIRS})
++
+ # Get pure C intermediary targets:
+ ADD_SUBDIRECTORY(hdfi)
+ ADD_SUBDIRECTORY(ci)
+--- a/tools/mdump/CMakeLists.txt	2018-07-29 09:24:35.714930029 +0200
++++ a/tools/mdump/CMakeLists.txt.new	2018-07-29 09:58:48.667089767 +0200
+@@ -33,6 +33,6 @@
+ CONFIGURE_FILE(xmdump3.in ${PROJECT_BINARY_DIR}/xmdump3 @ONLY)
+ 
+ INSTALL(PROGRAMS ${PROJECT_BINARY_DIR}/xmdump2 ${PROJECT_BINARY_DIR}/xmdump3 DESTINATION bin)
+-INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${CMAKE_COMMAND} -E create_symlink mdump3 mdump WORKING_DIRECTORY ${DESTDIR}${CMAKE_INSTALL_PREFIX}/bin)")
+-INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${CMAKE_COMMAND} -E create_symlink xmdump3 xmdump WORKING_DIRECTORY ${DESTDIR}${CMAKE_INSTALL_PREFIX}/bin)")
++INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${CMAKE_COMMAND} -E create_symlink mdump3 mdump WORKING_DIRECTORY \"\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/bin\")")
++INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${CMAKE_COMMAND} -E create_symlink xmdump3 xmdump WORKING_DIRECTORY \"\$ENV{DESTDIR}\${CMAKE_INSTALL_PREFIX}/bin\")")
+ 
+--- a/src/2.3.6/CMakeLists.txt	2018-07-30 22:45:56.205079148 +0200
++++ a/src/2.3.6/CMakeLists.txt.new	2018-07-30 22:49:43.520096835 +0200
+@@ -1,8 +1,3 @@
+-INCLUDE_DIRECTORIES(
+-  ${HDF5_INCLUDE_DIRS}
+-  ${MPI_INCLUDE_DIRS}
+-)
+- 
+ SET(med236_SOURCES MEDaffiche.c)
+ 
+ # Definitions
+@@ -13,6 +8,13 @@
+     "${PROJECT_BINARY_DIR}/include/2.3.6"
+     "${PROJECT_SOURCE_DIR}/include/2.3.6")
+ 
++# these includes must go after project ones to avoid masking by
++# previous versions already installed
++INCLUDE_DIRECTORIES(
++  ${HDF5_INCLUDE_DIRS}
++  ${MPI_INCLUDE_DIRS}
++)
++ 
+ # Build intermediate targets _cfi236, _hdfi236, _misc236 and _ci236 
+ # (and their static counterpart):
+ ADD_SUBDIRECTORY(cfi)
diff --git a/sci-libs/med/files/med-4.0.0-installdoc.patch b/sci-libs/med/files/med-4.0.0-installdoc.patch
new file mode 100644
index 000000000000..2d9361c42657
--- /dev/null
+++ b/sci-libs/med/files/med-4.0.0-installdoc.patch
@@ -0,0 +1,15 @@
+--- ./CMakeLists.txt	2019-02-26 11:59:15.276962751 +0100
++++ ./CMakeLists.txt.new	2019-02-26 11:59:26.660962707 +0100
+@@ -137,9 +137,10 @@
+ ENDIF()
+ 
+ ## Installation of the doc
++set(MEDFILE_DOC_DIRECTORY ${CMAKE_INSTALL_PREFIX}/share/doc/med-fichier-${MED_STR_VERSION} CACHE PATH "install dir for documentation")
+ IF(MEDFILE_INSTALL_DOC  OR MEDFILE_BUILD_DOC)
+-  INSTALL(DIRECTORY doc/html.dox/ DESTINATION ${CMAKE_INSTALL_PREFIX}/share/doc/med-fichier-${MED_STR_VERSION} REGEX "Makefile*" EXCLUDE PATTERN "*.am" EXCLUDE)
+-  INSTALL(DIRECTORY doc/gif doc/jpg doc/png DESTINATION ${CMAKE_INSTALL_PREFIX}/share/doc/med-fichier-${MED_STR_VERSION} FILES_MATCHING PATTERN "*.gif" PATTERN "*.jpg" PATTERN "*.svg" PATTERN "*.png")
++  INSTALL(DIRECTORY doc/html.dox/ DESTINATION ${MEDFILE_DOC_DIRECTORY} REGEX "Makefile*" EXCLUDE PATTERN "*.am" EXCLUDE)
++  INSTALL(DIRECTORY doc/gif doc/jpg doc/png DESTINATION ${MEDFILE_DOC_DIRECTORY} FILES_MATCHING PATTERN "*.gif" PATTERN "*.jpg" PATTERN "*.svg" PATTERN "*.png")
+ ENDIF()
+ 
+ #######################
diff --git a/sci-libs/med/med-4.0.0-r2.ebuild b/sci-libs/med/med-4.0.0-r2.ebuild
new file mode 100644
index 000000000000..837437559bdc
--- /dev/null
+++ b/sci-libs/med/med-4.0.0-r2.ebuild
@@ -0,0 +1,117 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+# EAPI=7 uses ninja generator by default but it's incompatible with USE=fortran
+# https://github.com/Kitware/ninja/tree/features-for-fortran#readme
+CMAKE_MAKEFILE_GENERATOR=emake
+
+FORTRAN_NEEDED=fortran
+
+# NOTE:The build for multiple python versions should be possible but
+# complicated for the build system
+PYTHON_COMPAT=( python3_{5,6,7} )
+
+inherit cmake-utils fortran-2 python-single-r1
+
+DESCRIPTION="A library to store and exchange meshed data or computation results"
+HOMEPAGE="https://www.salome-platform.org/user-section/about/med"
+SRC_URI="https://files.salome-platform.org/Salome/other/${P}.tar.gz"
+
+LICENSE="LGPL-3"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="doc fortran mpi python test"
+
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+RESTRICT="python? ( test )"
+
+# dev-lang/tk is needed for wish-based xmdump utility
+RDEPEND="
+	!sci-libs/libmed
+	dev-lang/tk:0=
+	>=sci-libs/hdf5-1.10.2:=[fortran?,mpi?]
+	mpi? ( virtual/mpi[fortran=] )
+	python? ( ${PYTHON_DEPS} )
+"
+DEPEND="${RDEPEND}"
+BDEPEND="python? ( >=dev-lang/swig-3.0.8 )"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-3.3.1-cmake-fortran.patch"
+	"${FILESDIR}/${PN}-3.3.1-disable-python-compile.patch"  # managed by function of python eclass
+	"${FILESDIR}/${P}-cmakelist.patch"
+	"${FILESDIR}/${P}-installdoc.patch"
+)
+
+DOCS=( AUTHORS ChangeLog NEWS README TODO )
+
+pkg_setup() {
+	use python && python-single-r1_pkg_setup
+	use fortran && fortran-2_pkg_setup
+}
+
+src_prepare() {
+	if use python; then
+		# fixes for correct libdir name
+		local pysite=$(python_get_sitedir)
+		pysite="${pysite##/usr/}"
+		sed \
+			-e 's@SET(_install_dir lib/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/site-packages/med)@SET(_install_dir '${pysite}'/med)@' \
+			-i ./python/CMakeLists.txt || die "sed on ./python/CMakeLists.txt failed"
+	fi
+	for cm in ./src/CMakeLists.txt ./tools/medimport/CMakeLists.txt
+	do
+		sed -i -e "s@INSTALL(TARGETS \(.*\) DESTINATION lib)@INSTALL(TARGETS \1 DESTINATION $(get_libdir))@" \
+			"${cm}" || die "sed on ${cm} failed"
+	done
+
+	cmake-utils_src_prepare
+}
+
+src_configure() {
+	local mycmakeargs=(
+		# as indicated in the CMakeLists.txt, the shipped documentation is generated by a custom doxygen,
+		# so let's avoid rebuilding it because it will be different
+		-DMEDFILE_BUILD_DOC=OFF
+		-DMEDFILE_BUILD_FORTRAN=$(usex fortran)
+		-DMEDFILE_BUILD_PYTHON=$(usex python)
+		-DMEDFILE_BUILD_SHARED_LIBS=ON
+		-DMEDFILE_BUILD_STATIC_LIBS=OFF
+		-DMEDFILE_BUILD_TESTS=$(usex test)
+		-DMEDFILE_DOC_DIRECTORY="${EPREFIX}"/usr/share/doc/${PF}/html   # custom var created by patches
+		-DMEDFILE_INSTALL_DOC=$(usex doc)
+		-DMEDFILE_USE_MPI=$(usex mpi)
+	)
+	cmake-utils_src_configure
+}
+
+src_install() {
+	cmake-utils_src_install
+
+	# we don't need old 2.3.6 include files
+	rm -r "${ED}"/usr/include/2.3.6 || die "failed to delete obsolete include dir"
+
+	# the optimization done in CMakeLists.txt has been disabled so
+	# we need to do it manually
+	use python && python_optimize
+
+	# Prevent test executables being installed
+	if use test; then
+		rm -r "${ED}"/usr/bin/testc || die "failed to delete C test executables"
+		if use fortran; then
+			rm -r "${ED}"/usr/bin/testf || die "failed to delete fortran test executables"
+		fi
+		if use python; then
+			rm -r "${ED}"/usr/bin/testpy || die "failed to delete python test executables"
+		fi
+	fi
+}
+
+src_test() {
+	# override parallel mode only for tests
+	local myctestargs=( "-j 1" )
+	cmake-utils_src_test
+}