cmake: Add options for parallel builds to --build mode

While we already support `cmake --build . -- -j`, the options after `--`
are specific to the native build tool.  Add new options `--parallel
[<N>]` and `-j [<N>]` to abstract this and map to the proper option
for the native build tool.

1 files changed, 11 insertions, 0 deletions

diff --git a/Source/cmGlobalWatcomWMakeGenerator.h b/Source/cmGlobalWatcomWMakeGenerator.h
index e8b3a73..1729bf1 100644
--- a/Source/cmGlobalWatcomWMakeGenerator.h
+++ b/Source/cmGlobalWatcomWMakeGenerator.h
@@ -8,6 +8,7 @@
 #include "cmGlobalGeneratorFactory.h"
 #include "cmGlobalUnixMakefileGenerator3.h"
 
+#include <iosfwd>
 #include <string>
 #include <vector>
 
@@ -47,6 +48,16 @@ public:
 
   bool AllowNotParallel() const override { return false; }
   bool AllowDeleteOnError() const override { return false; }
+
+protected:
+  void GenerateBuildCommand(
+    std::vector<std::string>& makeCommand, const std::string& makeProgram,
+    const std::string& projectName, const std::string& projectDir,
+    const std::string& targetName, const std::string& config, bool fast,
+    int jobs, bool verbose, std::vector<std::string> const& makeOptions =
+                              std::vector<std::string>()) override;
+
+  void PrintBuildCommandAdvice(std::ostream& os, int jobs) const override;
 };
 
 #endif