Merge pull request OpenMathLib#4533 from martin-frbg/fixup4501

CMake: add option for building benchmarks and handle their dependencies

CMakeLists.txt

@@ -24,6 +24,8 @@ option(BUILD_LAPACK_DEPRECATED "When building LAPACK, include also some older, d
 
 option(BUILD_TESTING "Build LAPACK testsuite when building LAPACK" ON)
 
+option(BUILD_BENCHMARKS "Build the collection of BLAS/LAPACK benchmarks" OFF)
+
 option(C_LAPACK "Build LAPACK from C sources instead of the original Fortran" OFF)
 
 option(BUILD_WITHOUT_CBLAS "Do not build the C interface (CBLAS) to the BLAS functions" OFF)
@@ -328,7 +330,7 @@ if (NOT NOFORTRAN)
   # Build test and ctest
   add_subdirectory(test)
  endif()
-  if (BUILD_TESTING)
+ if (BUILD_TESTING AND NOT BUILD_WITHOUT_LAPACK)
     add_subdirectory(lapack-netlib/TESTING)
   endif()
 endif()
@@ -458,9 +460,35 @@ if (BUILD_SHARED_LIBS AND NOT ${SYMBOLPREFIX}${SYMBOLSUFFIX} STREQUAL "")
   endif()
 endif()
 
-if (BUILD_TESTING)
-  find_package(OpenMP REQUIRED)
+if (BUILD_BENCHMARKS)
+	#find_package(OpenMP REQUIRED)
   file(GLOB SOURCES "benchmark/*.c")
+  if (NOT USE_OPENMP)
+  file(GLOB REMFILE "benchmark/smallscaling.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  endif()
+  if (BUILD_WITHOUT_LAPACK)
+  file(GLOB REMFILE "benchmark/cholesky.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  file(GLOB REMFILE "benchmark/geev.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  file(GLOB REMFILE "benchmark/gesv.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  file(GLOB REMFILE "benchmark/getri.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  file(GLOB REMFILE "benchmark/potrf.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  file(GLOB REMFILE "benchmark/spmv.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  file(GLOB REMFILE "benchmark/symv.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  file(GLOB REMFILE "benchmark/linpack.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  endif()
+  if (NOT USE_GEMM3M)
+  file(GLOB REMFILE "benchmark/gemm3m.c")
+  list(REMOVE_ITEM SOURCES ${REMFILE})
+  endif()
   foreach(source ${SOURCES})
     get_filename_component(name ${source} NAME_WE)
     if ((NOT ${name} STREQUAL "zdot-intel") AND (NOT ${name} STREQUAL "cula_wrapper"))
@@ -477,7 +505,8 @@ if (BUILD_TESTING)
             (NOT ${target_name} STREQUAL "benchmark_min_COMPLEX") AND (NOT ${target_name} STREQUAL "benchmark_min_COMPLEX_DOUBLE"))
           add_executable(${target_name} ${source})
           target_include_directories(${target_name} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})
-          target_link_libraries(${target_name} ${OpenBLAS_LIBNAME} OpenMP::OpenMP_C)
+	    target_link_libraries(${target_name} ${OpenBLAS_LIBNAME} )
+	  #  target_link_libraries(${target_name} ${OpenBLAS_LIBNAME} OpenMP::OpenMP_C)
           if (NOT "${define}" STREQUAL "DEFAULT")
             target_compile_definitions(${target_name} PRIVATE ${define})
           endif()