modularize BLAS and LAPACK

Author: eduardz1

src/CMakeLists.txt

@@ -1,6 +1,197 @@
 #### Pre-process: .fpp -> .f90 via Fypp
 
 # Create a list of the files to be preprocessed
+set(blas_fppFiles
+    stdlib_kinds.fypp
+    blas/stdlib_blas_constants.fypp
+    blas/stdlib_blas.fypp
+    blas/stdlib_blas_level1.fypp
+    blas/stdlib_blas_level2_ban.fypp
+    blas/stdlib_blas_level2_gen.fypp
+    blas/stdlib_blas_level2_pac.fypp
+    blas/stdlib_blas_level2_sym.fypp
+    blas/stdlib_blas_level2_tri.fypp
+    blas/stdlib_blas_level3_gen.fypp
+    blas/stdlib_blas_level3_sym.fypp
+    blas/stdlib_blas_level3_tri.fypp
+    blas/stdlib_linalg_blas_aux.fypp
+)
+set(blas_cppFiles stdlib_linalg_constants.fypp stdlib_linalg_blas.fypp)
+
+fypp_f90("${fyppFlags}" "${blas_fppFiles}" blas_outFiles)
+fypp_f90pp("${fyppFlags}" "${blas_cppFiles}" blas_outPreprocFiles)
+
+add_library(stdlib_blas ${blas_outFiles} ${blas_outPreprocFiles})
+
+if(BLAS_FOUND)
+    target_link_libraries(stdlib_blas PUBLIC "BLAS::BLAS")
+endif()
+
+set_target_properties(
+    stdlib_blas
+    PROPERTIES POSITION_INDEPENDENT_CODE ON WINDOWS_EXPORT_ALL_SYMBOLS ON
+)
+
+if(
+    CMAKE_Fortran_COMPILER_ID STREQUAL GNU
+    AND CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 10.0
+)
+    target_compile_options(
+        stdlib_blas
+        PRIVATE $<$<COMPILE_LANGUAGE:Fortran>:-fno-range-check>
+    )
+endif()
+
+set(LIB_MOD_DIR ${CMAKE_CURRENT_BINARY_DIR}/mod_files/blas/)
+# We need the module directory before we finish the configure stage since the
+# build interface might resolve before the module directory is generated by CMake
+if(NOT EXISTS "${LIB_MOD_DIR}")
+    file(MAKE_DIRECTORY "${LIB_MOD_DIR}")
+endif()
+
+set_target_properties(
+    stdlib_blas
+    PROPERTIES Fortran_MODULE_DIRECTORY ${LIB_MOD_DIR}
+)
+target_include_directories(
+    stdlib_blas
+    PUBLIC
+        $<BUILD_INTERFACE:${LIB_MOD_DIR}>
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_MODULEDIR}>
+)
+
+install(
+    TARGETS stdlib_blas
+    EXPORT ${PROJECT_NAME}-targets
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+)
+install(DIRECTORY ${LIB_MOD_DIR} DESTINATION "${CMAKE_INSTALL_MODULEDIR}/blas")
+
+set(lapack_fppFiles
+    stdlib_kinds.fypp
+    stdlib_linalg_state.fypp
+    stdlib_error.fypp
+    stdlib_optval.fypp
+    stdlib_io.fypp
+    stdlib_ascii.fypp
+    stdlib_string_type.fypp
+    lapack/stdlib_lapack_base.fypp
+    lapack/stdlib_lapack_solve.fypp
+    lapack/stdlib_lapack_others.fypp
+    lapack/stdlib_lapack_orthogonal_factors.fypp
+    lapack/stdlib_lapack_eig_svd_lsq.fypp
+    lapack/stdlib_linalg_lapack_aux.fypp
+    lapack/stdlib_lapack_auxiliary.fypp
+    lapack/stdlib_lapack_blas_like_base.fypp
+    lapack/stdlib_lapack_blas_like_l1.fypp
+    lapack/stdlib_lapack_blas_like_l2.fypp
+    lapack/stdlib_lapack_blas_like_l3.fypp
+    lapack/stdlib_lapack_blas_like_mnorm.fypp
+    lapack/stdlib_lapack_blas_like_scalar.fypp
+    lapack/stdlib_lapack_cosine_sine.fypp
+    lapack/stdlib_lapack_cosine_sine2.fypp
+    lapack/stdlib_lapack_eigv_comp.fypp
+    lapack/stdlib_lapack_eigv_comp2.fypp
+    lapack/stdlib_lapack_eigv_gen.fypp
+    lapack/stdlib_lapack_eigv_gen2.fypp
+    lapack/stdlib_lapack_eigv_gen3.fypp
+    lapack/stdlib_lapack_eigv_std_driver.fypp
+    lapack/stdlib_lapack_eigv_svd_bidiag_dc.fypp
+    lapack/stdlib_lapack_eigv_svd_drivers.fypp
+    lapack/stdlib_lapack_eigv_svd_drivers2.fypp
+    lapack/stdlib_lapack_eigv_svd_drivers3.fypp
+    lapack/stdlib_lapack_eigv_sym_comp.fypp
+    lapack/stdlib_lapack_eigv_sym.fypp
+    lapack/stdlib_lapack_eigv_tridiag.fypp
+    lapack/stdlib_lapack_eigv_tridiag2.fypp
+    lapack/stdlib_lapack_eigv_tridiag3.fypp
+    lapack/stdlib_lapack_givens_jacobi_rot.fypp
+    lapack/stdlib_lapack_householder_reflectors.fypp
+    lapack/stdlib_lapack_lsq.fypp
+    lapack/stdlib_lapack_lsq_aux.fypp
+    lapack/stdlib_lapack_lsq_constrained.fypp
+    lapack/stdlib_lapack_orthogonal_factors_ql.fypp
+    lapack/stdlib_lapack_orthogonal_factors_qr.fypp
+    lapack/stdlib_lapack_orthogonal_factors_rz.fypp
+    lapack/stdlib_lapack_others_sm.fypp
+    lapack/stdlib_lapack_solve_aux.fypp
+    lapack/stdlib_lapack_solve_chol_comp.fypp
+    lapack/stdlib_lapack_solve_chol.fypp
+    lapack/stdlib_lapack_solve_ldl_comp.fypp
+    lapack/stdlib_lapack_solve_ldl_comp2.fypp
+    lapack/stdlib_lapack_solve_ldl_comp3.fypp
+    lapack/stdlib_lapack_solve_ldl_comp4.fypp
+    lapack/stdlib_lapack_solve_ldl.fypp
+    lapack/stdlib_lapack_solve_lu_comp.fypp
+    lapack/stdlib_lapack_solve_lu.fypp
+    lapack/stdlib_lapack_solve_tri_comp.fypp
+    lapack/stdlib_lapack_svd_bidiag_qr.fypp
+    lapack/stdlib_lapack_svd_comp.fypp
+    lapack/stdlib_lapack_svd_comp2.fypp
+)
+set(lapack_cppFiles stdlib_linalg_constants.fypp stdlib_linalg_lapack.fypp)
+
+fypp_f90("${fyppFlags}" "${lapack_fppFiles}" lapack_outFiles)
+fypp_f90pp("${fyppFlags}" "${lapack_cppFiles}" lapack_outPreprocFiles)
+
+add_library(stdlib_lapack ${lapack_outFiles} ${lapack_outPreprocFiles})
+
+if(LAPACK_FOUND)
+    target_link_libraries(stdlib_lapack PUBLIC "LAPACK::LAPACK")
+endif()
+target_link_libraries(stdlib_lapack PUBLIC stdlib_blas)
+
+set_target_properties(
+    stdlib_lapack
+    PROPERTIES POSITION_INDEPENDENT_CODE ON WINDOWS_EXPORT_ALL_SYMBOLS ON
+)
+
+if(
+    CMAKE_Fortran_COMPILER_ID STREQUAL GNU
+    AND CMAKE_Fortran_COMPILER_VERSION VERSION_LESS 10.0
+)
+    target_compile_options(
+        stdlib_lapack
+        PRIVATE $<$<COMPILE_LANGUAGE:Fortran>:-fno-range-check>
+    )
+endif()
+
+set(LIB_MOD_DIR ${CMAKE_CURRENT_BINARY_DIR}/mod_files/lapack/)
+# We need the module directory before we finish the configure stage since the
+# build interface might resolve before the module directory is generated by CMake
+if(NOT EXISTS "${LIB_MOD_DIR}")
+    file(MAKE_DIRECTORY "${LIB_MOD_DIR}")
+endif()
+
+set_target_properties(
+    stdlib_lapack
+    PROPERTIES Fortran_MODULE_DIRECTORY ${LIB_MOD_DIR}
+)
+
+if(f18errorstop)
+  target_sources(stdlib_lapack PRIVATE f18estop.f90)
+else()
+  target_sources(stdlib_lapack PRIVATE f08estop.f90)
+endif()
+
+target_include_directories(
+    stdlib_lapack
+    PUBLIC
+        $<BUILD_INTERFACE:${LIB_MOD_DIR}>
+        $<INSTALL_INTERFACE:${CMAKE_INSTALL_MODULEDIR}>
+)
+
+install(
+    TARGETS stdlib_lapack
+    EXPORT ${PROJECT_NAME}-targets
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+)
+install(DIRECTORY ${LIB_MOD_DIR} DESTINATION "${CMAKE_INSTALL_MODULEDIR}")
+
 set(fppFiles
     stdlib_ascii.fypp
     stdlib_bitsets.fypp
@@ -91,14 +282,7 @@ set(fppFiles
 )
 
 # Preprocessed files to contain preprocessor directives -> .F90
-set(cppFiles
-    stdlib_linalg_constants.fypp
-    stdlib_linalg_blas.fypp
-    stdlib_linalg_lapack.fypp
-)
-
-add_subdirectory(blas)
-add_subdirectory(lapack)
+set(cppFiles stdlib_linalg_constants.fypp)
 
 fypp_f90("${fyppFlags}" "${fppFiles}" outFiles)
 fypp_f90pp("${fyppFlags}" "${cppFiles}" outPreprocFiles)
@@ -130,11 +314,7 @@ set(SRC
 
 add_library(${PROJECT_NAME} ${SRC})
 
-# Link to BLAS and LAPACK
-if(BLAS_FOUND AND LAPACK_FOUND)
-  target_link_libraries(${PROJECT_NAME} "BLAS::BLAS")
-  target_link_libraries(${PROJECT_NAME} "LAPACK::LAPACK")
-endif()
+target_link_libraries(${PROJECT_NAME} PUBLIC stdlib_blas stdlib_lapack)
 
 set_target_properties(
   ${PROJECT_NAME}