file(GET_RUNTIME_DEPENDENCIES): Tolerate empty list arguments

Also list all keywords that were missing values instead of only the
first one.

1 files changed, 14 insertions, 3 deletions

diff --git a/Source/cmFileCommand.cxx b/Source/cmFileCommand.cxx
index d55b959..d45414f 100644
--- a/Source/cmFileCommand.cxx
+++ b/Source/cmFileCommand.cxx
@@ -2673,9 +2673,20 @@ bool HandleGetRuntimeDependenciesCommand(std::vector<std::string> const& args,
     cmSystemTools::SetFatalErrorOccured();
     return false;
   }
-  argIt = keywordsMissingValues.begin();
-  if (argIt != keywordsMissingValues.end()) {
-    status.SetError(cmStrCat("Keyword missing value: ", *argIt));
+
+  const std::vector<std::string> LIST_ARGS = { "DIRECTORIES",
+                                               "EXECUTABLES",
+                                               "LIBRARIES",
+                                               "MODULES",
+                                               "POST_EXCLUDE_REGEXES",
+                                               "POST_INCLUDE_REGEXES",
+                                               "PRE_EXCLUDE_REGEXES",
+                                               "PRE_INCLUDE_REGEXES" };
+  auto kwbegin = keywordsMissingValues.cbegin();
+  auto kwend = cmRemoveMatching(keywordsMissingValues, LIST_ARGS);
+  if (kwend != kwbegin) {
+    status.SetError(cmStrCat("Keywords missing values:\n  ",
+                             cmJoin(cmMakeRange(kwbegin, kwend), "\n  ")));
     cmSystemTools::SetFatalErrorOccured();
     return false;
   }