fix argument passing

cmake/CPM.cmake

@@ -243,8 +243,6 @@ endfunction()
 # Download and add a package from source
 function(CPMAddPackage)
 
-  set(flagArgs EXCLUDE_FROM_ALL)
-
   set(oneValueArgs
       NAME
       FORCE
@@ -259,11 +257,12 @@ function(CPMAddPackage)
       FIND_PACKAGE_ARGUMENTS
       NO_CACHE
       GIT_SHALLOW
+      EXCLUDE_FROM_ALL
   )
 
   set(multiValueArgs OPTIONS)
 
-  cmake_parse_arguments(CPM_ARGS "${flagArgs}" "${oneValueArgs}" "${multiValueArgs}" "${ARGN}")
+  cmake_parse_arguments(CPM_ARGS "" "${oneValueArgs}" "${multiValueArgs}" "${ARGN}")
 
   # Set default values for arguments
 
@@ -579,7 +578,7 @@ function(cpm_fetch_package PACKAGE DOWNLOAD_ONLY EXCLUDE)
       set(CPM_OLD_INDENT "${CPM_INDENT}")
       set(CPM_INDENT "${CPM_INDENT} ${PACKAGE}:")
       cpm_add_subdirectory(
-        ${${lower_case_name}_SOURCE_DIR} ${${lower_case_name}_BINARY_DIR} ${EXCLUDE}
+        ${${lower_case_name}_SOURCE_DIR} ${${lower_case_name}_BINARY_DIR} "${EXCLUDE}"
       )
       set(CPM_INDENT "${CPM_OLD_INDENT}")
     endif()