hist/unfold: do not use file globbing

hist/unfold/CMakeLists.txt

@@ -2,6 +2,23 @@
 # CMakeLists.txt file for building ROOT hist/unfold package
 ############################################################################
 
-set(libname Unfold)
-
-ROOT_STANDARD_LIBRARY_PACKAGE(Unfold DEPENDENCIES Hist XMLParser Matrix DICTIONARY_OPTIONS "-writeEmptyRootPCM")
\ No newline at end of file
+ROOT_STANDARD_LIBRARY_PACKAGE(Unfold
+  HEADERS
+    TUnfold.h
+    TUnfoldBinning.h
+    TUnfoldBinningXML.h
+    TUnfoldDensity.h
+    TUnfoldSys.h
+  SOURCES
+    src/TUnfold.cxx
+    src/TUnfoldBinning.cxx
+    src/TUnfoldBinningXML.cxx
+    src/TUnfoldDensity.cxx
+    src/TUnfoldSys.cxx
+  DICTIONARY_OPTIONS
+    -writeEmptyRootPCM
+  DEPENDENCIES
+    Hist
+    XMLParser
+    Matrix
+)