Include CMake Config in CMake installation process (#14)

* Add CMake configuration file for installation

* This aids in dependency resolution for other projects, like hohqmesh

* Change from snake case format

* CMake error messages from HOHQMesh suggest it's looking for
ftobjectlibrary-config.cmake

* Change to "set" to set build variables

* set_and_check is unknown to CMake when installing HOHQMesh via spack

* Update FFLAGS and change to camel case for config

* FFLAGS default is now set to match the default in the Makefile make
system (Per @sloede suggestion)

* Change CMake config file naming format to camel case (canonical style
of CMAKE, and requested by @sloede).

* Add CI workflow for CMake build test

* Set FC to compiler from build matrix

Co-authored-by: Michael Schlottke-Lakemper <[email protected]>

* Add CMake build/ directory to .gitignore

* Move fortran compiler environment spec to env attribute

We believe this can resolve issues with how environment variables are passed to Windows environments when cmake is called.

Co-authored-by: Michael Schlottke-Lakemper <[email protected]>

* Add Fortran compiler as cache variable

* Testing to see if this patches the issue with Windows systems builds

* Apply patch similar for CMake build tests

* This commit matches @sloede's commit at 23738bc

Co-authored-by: Joe Schoonover <[email protected]>
Co-authored-by: Michael Schlottke-Lakemper <[email protected]>

Author: fluidnumerics-joe

.github/workflows/ci.yml

@@ -26,16 +26,26 @@ jobs:
         include:
           - os: ubuntu-latest
             compiler: gfortran-10
+            cmake_generator: Unix Makefiles
           - os: macos-latest
             compiler: gfortran-10
+            cmake_generator: Unix Makefiles
           - os: windows-latest
             compiler: gfortran
+            cmake_generator: MinGW Makefiles
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
       # - name: Add msbuild to PATH
       #   if: ${{ matrix.os == 'windows-latest' }}
       #   uses: microsoft/[email protected]
+      - name: Verify CMake build
+        run: |
+          mkdir build && cd build
+          cmake -G "${{ matrix.cmake_generator }}" ../
+          make
+        env:
+          FC: ${{ matrix.compiler }}
       - name: Verify regular build
         run: |
           cd makeLibrary

.gitignore

@@ -28,6 +28,7 @@ Docs/FTObjectLibrary.toc
 *.mod
 runSuite
 libFTObjectLibrary.a
+build/
 
 # auto-built documentation
 public/

CMakeLists.txt

@@ -3,11 +3,10 @@ CMAKE_MINIMUM_REQUIRED(VERSION 3.0.2)
 # You can override the compiler with cmake -DFTOBJ_COMPILER=
 #set(FTOBJ_AR "/usr/bin/gcc-ar" CACHE STRING "Static archive command")
 #set(FTOBJ_RANLIB "/usr/bin/gcc-ranlib" CACHE STRING "ranlib used to create Static archive")
-SET(FC "/usr/bin/gfortran" CACHE STRING "Fortran Compiler")
-SET(FFLAGS "-cpp" CACHE STRING "Fortran compiler flags")
+INCLUDE(CMakePackageConfigHelpers)
+SET(FFLAGS "-cpp -O -std=f2008 -pedantic -Werror -fimplicit-none -Wall -Wextra -Wcharacter-truncation -Wimplicit-interface -Wimplicit-procedure -Wno-compare-reals -Wno-unused-dummy-argument -Wno-intrinsic-shadow -Wno-implicit-interface -Wno-implicit-procedure" CACHE STRING "Fortran compiler flags")
 
 MESSAGE("-- FTOBJ -------------  cmake START -------------------")
-MESSAGE("-- FC:                   ${FC}")
 MESSAGE("-- FFLAGS:               ${FFLAGS}")
 MESSAGE("-- CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
 MESSAGE("-- FTOBJ ----------------------------------------------")
@@ -26,4 +25,11 @@ ENDIF(NOT CMAKE_Fortran_COMPILER_SUPPORTS_F90)
 
 ADD_SUBDIRECTORY(${CMAKE_SOURCE_DIR}/Source)
 
+configure_package_config_file(FTObjectLibraryConfig.cmake.in
+	                      ${CMAKE_CURRENT_BINARY_DIR}/FTObjectLibraryConfig.cmake 
+			      INSTALL_DESTINATION ${CMAKE_INSTALL_PREFIX}
+			      PATH_VARS CMAKE_INSTALL_PREFIX)
+INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/FTObjectLibraryConfig.cmake
+        DESTINATION ${CMAKE_INSTALL_PREFIX})	
+
 message("-- FTOBJ -------------  cmake DONE --------------------")

FTObjectLibraryConfig.cmake.in

@@ -0,0 +1,3 @@
+
+set(FTOBJECTLIBRARY_INCLUDE_DIRS "@CMAKE_INSTALL_PREFIX@/include")
+set(FTOBJECTLIBRARY_LIBRARY "@CMAKE_INSTALL_PREFIX@/lib/libftobject.a")