Makefile: Fix rebuild with multiple custom command outputs (#15116)

Fix the generated makefiles for custom commands with multiple outputs to
list all the outputs on the left hand side of the build rule.  This is
much simpler and more reliable than the old multiple-output-pair
infrastructure.

1 files changed, 7 insertions, 0 deletions

diff --git a/Source/cmLocalUnixMakefileGenerator3.h b/Source/cmLocalUnixMakefileGenerator3.h
index 4f2e4a0355..65265ce08f 100644
--- a/Source/cmLocalUnixMakefileGenerator3.h
+++ b/Source/cmLocalUnixMakefileGenerator3.h
@@ -61,6 +61,13 @@ public:
                      const std::vector<std::string>& commands,
                      bool symbolic,
                      bool in_help = false);
+  void WriteMakeRule(std::ostream& os,
+                     const char* comment,
+                     const std::vector<std::string>& outputs,
+                     const std::vector<std::string>& depends,
+                     const std::vector<std::string>& commands,
+                     bool symbolic,
+                     bool in_help = false);
 
   // write the main variables used by the makefiles
   void WriteMakeVariables(std::ostream& makefileStream);