followed @Antidote's advice and added atdna_* prefix

DataSpec/CMakeLists.txt

@@ -6,17 +6,19 @@ find_package(atdna REQUIRED)
 
 # Assembles a source/header pair list for use in a DNA library
 macro(make_dnalist outlist)
-foreach(type ${ARGN})
-  atdna(${type}.cpp ${type}.hpp)
-  list(APPEND ${outlist} ${type}.cpp ${type}.hpp)
-endforeach()
+  foreach(type ${ARGN})
+    atdna(atdna_${type}.cpp ${type}.hpp)
+    list(APPEND ${outlist} atdna_${type}.cpp ${type}.hpp)
+  endforeach()
 endmacro()
 
+# Each game's DNA library
 add_subdirectory(DNACommon)
 add_subdirectory(DNAMP1)
 add_subdirectory(DNAMP2)
 add_subdirectory(DNAMP3)
 
+# Each game's DataSpec implementation
 add_library(RetroDataSpec
             SpecBase.cpp
             SpecMP1.cpp

DataSpec/DNAMP1/CMakeLists.txt

@@ -1,6 +1,4 @@
-list(APPEND types
+make_dnalist(liblist
              PAK
              MLVL)
-
-make_dnalist(liblist ${types})
 add_library(DNAMP1 ${liblist})

DataSpec/DNAMP3/CMakeLists.txt

@@ -1,5 +1,3 @@
-list(APPEND types
+make_dnalist(liblist
              PAK)
-
-make_dnalist(liblist ${types})
 add_library(DNAMP3 ${liblist})