cmake: added exported target (#112)

* cmake: added exported target

* cmake: add latte version

* Update .travis.yml

.travis.yml

@@ -1,7 +1,6 @@
 language: c
 
 sudo: required
-dist: trusty
 
 sources:
   - ubuntu-toolchain-r-test
@@ -13,7 +12,7 @@ os:
 before_install:
   - export LATTEPATH=`pwd`
   - sudo apt-get install gfortran libblas-dev liblapack-dev
-  - sudo apt-get install cmake python gcc cmake-data g++ curl
+  - sudo apt-get install python gcc g++ curl
   - cd; git clone --depth=1 https://github.com/lanl/qmd-progress.git
   - cd; git clone --depth=1 https://github.com/lanl/bml.git
   - cd; git clone --depth=1 https://github.com/lammps/lammps.git

cmake/CMakeLists.txt

@@ -1,5 +1,5 @@
-cmake_minimum_required(VERSION 3.1)
-project(latte Fortran)
+cmake_minimum_required(VERSION 3.9)
+project(latte VERSION 1.2.2 LANGUAGES Fortran)
 
 if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_Fortran_FLAGS)
   #release comes with -O3 by default
@@ -135,7 +135,12 @@ add_library(latte ${MYMODULES_SOURCES} ${MYSUBS_SOURCES}
   ${CMAKE_CURRENT_SOURCE_DIR}/../src/latte_c_bind.F90
 )
 target_compile_options(latte PRIVATE -cpp ${OpenMP_Fortran_FLAGS})
-install(TARGETS latte LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+install(TARGETS latte EXPORT LATTE_Targets LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+install(EXPORT LATTE_Targets FILE LATTE_Targets.cmake NAMESPACE LATTE:: DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/LATTE)
+include(CMakePackageConfigHelpers)
+configure_file(LATTEConfig.cmakein ${CMAKE_CURRENT_BINARY_DIR}/LATTEConfig.cmake @ONLY)
+write_basic_package_version_file("LATTEConfigVersion.cmake" VERSION ${PROJECT_VERSION} COMPATIBILITY ExactVersion)
+install(FILES "${CMAKE_CURRENT_BINARY_DIR}/LATTEConfig.cmake" "${CMAKE_CURRENT_BINARY_DIR}/LATTEConfigVersion.cmake" DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/LATTE)
 target_link_libraries(latte PRIVATE
   ${LAPACK_LIBRARIES}
   ${BLAS_LIBRARIES}

cmake/LATTEConfig.cmakein

@@ -0,0 +1,5 @@
+include(CMakeFindDependencyMacro)
+if(@DO_MPI@)
+  find_dependency(MPI REQUIRED)
+endif()
+include("${CMAKE_CURRENT_LIST_DIR}/LATTE_Targets.cmake")