Add -flinking-depth kcc flag. (#579)

Author: chathhorn

scripts/RV_Kcc/Opts.pm

@@ -447,6 +447,7 @@ sub parseOpts {
 			for GCC.
       { RV_Kcc::Opts::pushArg('cppArgs', "-d$chars"); }
   -ftranslation-depth=<depth>	Compile program up to a given depth. [undocumented]
+  -flinking-depth=<depth>	Link program up to a given depth. [undocumented]
   -fmessage-length=0	Write all error messages on a single line.
   -frunner-script	Compile program to perl script with analysis tool options. [undocumented]
   -fissue-report=<file>	Write issues to the specified file.

scripts/kcc

@@ -453,6 +453,11 @@ sub getLinkingCommand {
 
       my @krun = getKRunCommand($output, $symbols, 'c-cpp-linking-kompiled');
 
+      if (arg('-flinking-depth=')) {
+            push(@krun, '--depth');
+            push(@krun, arg('-flinking-depth='));
+      }
+
       my ($rvErrorJson, $string) = (getRVErrorJson(), QUOTE_STRING);
       my $json = "#token($rvErrorJson, $string)";