Update CMakeLists.txt

Author: perazz

src/CMakeLists.txt

@@ -8,6 +8,7 @@ set(fppFiles
     stdlib_bitsets_large.fypp
     stdlib_codata_type.fypp
     stdlib_constants.fypp
+    stdlib_error.fypp
     stdlib_hash_32bit.fypp
     stdlib_hash_32bit_fnv.fypp
     stdlib_hash_32bit_nm.fypp
@@ -102,7 +103,6 @@ set(SRC
     stdlib_ansi_to_string.f90
     stdlib_array.f90
     stdlib_codata.f90
-    stdlib_error.f90
     stdlib_hashmap_wrappers.f90
     stdlib_hashmaps.f90
     stdlib_hashmap_chaining.f90