CMakeLists.txt update for macosx.gnu platform

no changes from develop branch for the build.sh script

Author: Natalie Perlin

CMakeLists.txt

@@ -377,7 +377,12 @@ target_link_libraries(ufs PUBLIC "${_ufs_libs_public}")
 add_executable(ufs_model driver/UFS.F90)
 add_dependencies(ufs_model ufs)
 target_link_libraries(ufs_model ufs esmf w3emc::w3emc_d)
-set_target_properties(ufs_model PROPERTIES LINKER_LANGUAGE Fortran)
+
+if(CMAKE_Platform MATCHES "macosx.gnu")
+  set_target_properties(ufs_model PROPERTIES LINKER_LANGUAGE CXX)
+else()
+  set_target_properties(ufs_model PROPERTIES LINKER_LANGUAGE Fortran)
+endif()
 
 ###############################################################################
 ### Install

build.sh

@@ -13,10 +13,6 @@ export FC=${FC:-mpif90}
 BUILD_DIR=${BUILD_DIR:-${UFS_MODEL_DIR}/build}
 mkdir -p "${BUILD_DIR}"
 
-if [[ "$(uname -s)" == "Darwin" ]]; then
-   gsed -i'.backup' "s:LINKER_LANGUAGE Fortran:LINKER_LANGUAGE CXX:" ./CMakeLists.txt
-fi
-
 cd "${BUILD_DIR}"
 ARR_CMAKE_FLAGS=()
 for i in ${CMAKE_FLAGS}; do ARR_CMAKE_FLAGS+=("${i}") ; done