Fix errors in CMake script

CMakeLists.txt

@@ -113,6 +113,8 @@ elseif ("${DAMASK_SOLVER}" STREQUAL "FEM")
     project (DAMASK_FEM Fortran C)
     add_definitions (-DFEM)
     message ("Building FEM Solver\n")
+else ()
+    message (FATAL_ERROR "DAMASK_SOLVER is not defined!")
 endif ()
 
 # set linker commands (needs to be done after defining the project)
@@ -188,7 +190,7 @@ set (DAMASK_INCLUDE_FLAGS "${DAMASK_INCLUDE_FLAGS} ${PETSC_INCLUDES}")
 ###################################################################################################
 # Intel Compiler
 ###################################################################################################
-if (${CMAKE_Fortran_COMPILER_ID} STREQUAL "Intel")
+if ( CMAKE_Fortran_COMPILER_ID  STREQUAL "Intel")
 
   if (OPENMP)
     set (OPENMP_FLAGS "-qopenmp -parallel")
@@ -308,7 +310,7 @@ if (${CMAKE_Fortran_COMPILER_ID} STREQUAL "Intel")
 ###################################################################################################
 # GNU Compiler
 ###################################################################################################
-elseif(${CMAKE_Fortran_COMPILER_ID} STREQUAL "GNU")
+elseif( CMAKE_Fortran_COMPILER_ID  STREQUAL "GNU")
 
   if (OPENMP)
     set (OPENMP_FLAGS "-fopenmp")

src/CMakeLists.txt

@@ -1,5 +1,5 @@
 # special flags for some files
-if (${CMAKE_Fortran_COMPILER_ID} STREQUAL "GNU")
+if (CMAKE_Fortran_COMPILER_ID STREQUAL "GNU")
     SET_SOURCE_FILES_PROPERTIES( "lattice.f90" PROPERTIES
                                 COMPILE_FLAGS "-ffree-line-length-240")
     # long lines for interaction matrix
@@ -22,6 +22,8 @@ if ("${PROJECT_NAME}" STREQUAL "DAMASK_spectral")
       add_library(DAMASK_INTERFACE OBJECT "spectral_interface.f90")
 elseif ("${PROJECT_NAME}" STREQUAL "DAMASK_FEM")
       add_library(DAMASK_INTERFACE OBJECT "FEM_interface.f90")
+else ()
+    message ( FATAL_ERROR "PROJECT_NAME is not defined!")
 endif()
 add_dependencies(DAMASK_INTERFACE PREC)
 list(APPEND OBJECTFILES $<TARGET_OBJECTS:DAMASK_INTERFACE>)