WIP: Factor source search into function

CMakeLists.txt

@@ -69,27 +69,40 @@ foreach(d ${arch_path})
 endforeach()
 include_directories(${includes})
 
-function(load_source_list srcs_var listfile)
-  set(srcs "")
-  file(STRINGS "${listfile}" names)
-  foreach(name ${names})
-    set(found 0)
+function(find_source src_var name)
+  set(found "")
   foreach(d ${arch_path})
-      foreach(ext .c .s .si)
+    if(ARGN)
+      foreach(ext ${ARGN})
         set(src "${GTM_SOURCE_DIR}/${d}/${name}${ext}")
         if(EXISTS "${src}")
-          list(APPEND srcs "${src}")
-          set(found 1)
+          set(found "${src}")
           break()
         endif()
       endforeach()
+    else()
+     set(src "${GTM_SOURCE_DIR}/${d}/${name}")
+     if(EXISTS "${src}")
+       set(found "${src}")
+       break()
+     endif()
+    endif()
     if(found)
       break()
     endif()
   endforeach()
   if(NOT found)
-      message(FATAL_ERROR "Cannot find ${name}")
+    message(FATAL_ERROR "Cannot find \"${name}\" as ${ARGN}")
   endif()
+  set("${src_var}" "${found}" PARENT_SCOPE)
+ endfunction()
+
+function(load_source_list srcs_var listfile)
+  set(srcs "")
+  file(STRINGS "${listfile}" names)
+  foreach(name ${names})
+    find_source(src ${name} .c .s .si)
+    list(APPEND srcs ${src})
   endforeach()
   set(${srcs_var} "${srcs}" PARENT_SCOPE)
 endfunction()
@@ -262,21 +275,13 @@ foreach(h
   gtm_limits.h
   main_pragma.h
   )
-  set(found 0)
-  foreach(d ${arch_path})
-    set(hdr "${GTM_SOURCE_DIR}/${d}/${h}")
-    if(EXISTS "${hdr}")
-      list(APPEND hdrs "${hdr}")
-      set(found 1)
-     break()
-    endif()
-  endforeach()
-  if(NOT found)
-    message(FATAL_ERROR "Cannot find header ${h}")
-  endif()
+  find_source(hdr ${h})
+  list(APPEND hdrs ${hdr})
 endforeach()
 install(FILES ${hdrs} DESTINATION .)
 
+
+
 # Would install to:
 # /usr/lib/fis-gtm/V5.5-000_x86
 # /usr/lib/fis-gtm/V5.5-000_x86_64