ENH: Re-work of fix committed yesterday for the Watcom WMake dashboard. Fix it properly by using the SYMBOLIC source file property to indicate to WMake when the sentinel file is not actually written by the update step.

1 files changed, 6 insertions, 1 deletions

diff --git a/Modules/AddExternalProject.cmake b/Modules/AddExternalProject.cmake
index acfccf5..7dcbe55 100644
--- a/Modules/AddExternalProject.cmake
+++ b/Modules/AddExternalProject.cmake
@@ -310,7 +310,6 @@ endfunction(add_external_project_download_command)
 
 
 function(add_external_project_update_command name)
-  set(added 0)
   get_external_project_directories(base_dir build_dir downloads_dir install_dir
     sentinels_dir source_dir tmp_dir)
 
@@ -373,6 +372,9 @@ function(add_external_project_update_command name)
       COMMENT "Performing update step (CVS update) for '${name}'"
       DEPENDS ${sentinels_dir}/${name}-download
     )
+    # Since the update sentinel is not actually written:
+    set_property(SOURCE ${sentinels_dir}/${name}-update
+      PROPERTY SYMBOLIC 1)
     return()
   endif()
 
@@ -399,6 +401,9 @@ function(add_external_project_update_command name)
       COMMENT "Performing update step (SVN update) for '${name}'"
       DEPENDS ${sentinels_dir}/${name}-download
     )
+    # Since the update sentinel is not actually written:
+    set_property(SOURCE ${sentinels_dir}/${name}-update
+      PROPERTY SYMBOLIC 1)
     return()
   endif()