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-rw-r--r--Source/cmInstallCommand.cxx19
1 files changed, 18 insertions, 1 deletions
diff --git a/Source/cmInstallCommand.cxx b/Source/cmInstallCommand.cxx
index 001bd95..37c0f9b 100644
--- a/Source/cmInstallCommand.cxx
+++ b/Source/cmInstallCommand.cxx
@@ -855,6 +855,7 @@ cmInstallCommand::HandleDirectoryMode(std::vector<std::string> const& args)
DoingConfigurations, DoingComponent };
Doing doing = DoingDirs;
bool in_match_mode = false;
+ bool optional = false;
std::vector<std::string> dirs;
const char* destination = 0;
std::string permissions_file;
@@ -878,6 +879,21 @@ cmInstallCommand::HandleDirectoryMode(std::vector<std::string> const& args)
// Switch to setting the destination property.
doing = DoingDestination;
}
+ else if(args[i] == "OPTIONAL")
+ {
+ if(in_match_mode)
+ {
+ cmOStringStream e;
+ e << args[0] << " does not allow \""
+ << args[i] << "\" after PATTERN or REGEX.";
+ this->SetError(e.str().c_str());
+ return false;
+ }
+
+ // Mark the rule as optional.
+ optional = true;
+ doing = DoingNone;
+ }
else if(args[i] == "PATTERN")
{
// Switch to a new pattern match rule.
@@ -1144,7 +1160,8 @@ cmInstallCommand::HandleDirectoryMode(std::vector<std::string> const& args)
permissions_dir.c_str(),
configurations,
component.c_str(),
- literal_args.c_str()));
+ literal_args.c_str(),
+ optional));
// Tell the global generator about any installation component names
// specified.