ENH: Added IMPLICIT_DEPENDS option to ADD_CUSTOM_COMMAND. It currently works only for Makefile generators. It allows a custom command to have implicit dependencies in the form of C or CXX sources.

1 files changed, 10 insertions, 0 deletions

diff --git a/Source/cmAddCustomCommandCommand.h b/Source/cmAddCustomCommandCommand.h
index e2bf2f1..845c594 100644
--- a/Source/cmAddCustomCommandCommand.h
+++ b/Source/cmAddCustomCommandCommand.h
@@ -71,6 +71,7 @@ public:
       "                     [COMMAND command2 [ARGS] [args2...] ...]\n"
       "                     [MAIN_DEPENDENCY depend]\n"
       "                     [DEPENDS [depends...]]\n"
+      "                     [IMPLICIT_DEPENDS <lang1> depend1 ...]\n"
       "                     [WORKING_DIRECTORY dir]\n"
       "                     [COMMENT comment] [VERBATIM] [APPEND])\n"
       "This defines a new command that can be executed during the build "
@@ -129,6 +130,15 @@ public:
       "created as a file on disk it should be marked as SYMBOLIC with "
       "SET_SOURCE_FILES_PROPERTIES.\n"
 
+      "The IMPLICIT_DEPENDS option requests scanning of implicit "
+      "dependencies of an input file.  The language given specifies the "
+      "programming language whose corresponding dependency scanner should "
+      "be used.  Currently only C and CXX language scanners are supported. "
+      "Dependencies discovered from the scanning are added to those of "
+      "the custom command at build time.  Note that the IMPLICIT_DEPENDS "
+      "option is currently supported only for Makefile generators and "
+      "will be ignored by other generators."
+      "\n"
       "If COMMAND specifies an executable target (created by "
       "ADD_EXECUTABLE) it will automatically be replaced by the location "
       "of the executable created at build time.  Additionally a "