Added new way to specify compiler options for CCR (#507)

* added blass to explict library requirements

* trying static blas

* added required to BLAS

* removed system hack

* added optional CXX_ADDITIONAL_FLAGS

* revert debug

* removed required

* wrapped blas

* fixed typo

* version bump

CMakeLists.txt

@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.18.4)
 include(config/petscCompilers.cmake)
 
 # Set the project details
-project(ablateLibrary VERSION 0.12.15)
+project(ablateLibrary VERSION 0.12.16)
 
 # Load the Required 3rd Party Libaries
 pkg_check_modules(PETSc REQUIRED IMPORTED_TARGET GLOBAL PETSc)
@@ -66,6 +66,15 @@ target_link_libraries(ablateLibrary
         PRIVATE
         chrestCompilerFlags)
 
+# depending upon the build, we may need to add blas
+find_package(BLAS)
+if (BLAS_FOUND)
+    target_link_libraries(ablateLibrary
+            PUBLIC
+            BLAS::BLAS)
+endif ()
+
+
 # Set the ablate library requirements
 set_property(TARGET ablateLibrary PROPERTY CXX_EXTENSIONS ON)
 set_property(TARGET ablateLibrary PROPERTY CMAKE_CXX_STANDARD_REQUIRED ON)

config/petscCompilers.cmake

@@ -35,6 +35,12 @@ if (NOT DEFINED CMAKE_CXX_COMPILER)
 
     pkg_get_variable(PETSC_CXX_FLAGS PETSc cxxflags_extra)
     configure_flags("${PETSC_CXX_FLAGS}" PETSC_FLAGS_OUT)
+
+    # allow adding custom CXX_ADDITIONAL_FLAGS
+    if (DEFINED ENV{CXX_ADDITIONAL_FLAGS})
+        string(APPEND PETSC_FLAGS_OUT " " $ENV{CXX_ADDITIONAL_FLAGS})
+    endif ()
+
     set(CMAKE_CXX_FLAGS_INIT ${PETSC_FLAGS_OUT})
 
     message(STATUS "Using found PETSc c++ Compiler/Flags: ${PETSC_CXX_COMPILER} ${PETSC_FLAGS_OUT}\n")