AddCustomCommand: Handle multiple IMPLICIT_DEPENDS files (#10048)

The code handling IMPLICIT_DEPENDS was only able to track a single file,
the latest file replaced earlier files in the list.

The documentation now mentions that the language has to be prefixed to
every file and the test now uses two implicit dependencies, where only
the second is modified to trigger re-running of the custom command.

Alex

Inspired-by: Michael Wild <themiwi@users.sourceforge.net>

1 files changed, 7 insertions, 3 deletions

diff --git a/Source/cmLocalUnixMakefileGenerator3.cxx b/Source/cmLocalUnixMakefileGenerator3.cxx
index db93529..820d25a 100644
--- a/Source/cmLocalUnixMakefileGenerator3.cxx
+++ b/Source/cmLocalUnixMakefileGenerator3.cxx
@@ -1939,8 +1939,12 @@ void cmLocalUnixMakefileGenerator3
     for(ImplicitDependFileMap::const_iterator pi = implicitPairs.begin();
         pi != implicitPairs.end(); ++pi)
       {
-      cmakefileStream << "  \"" << pi->second << "\" ";
-      cmakefileStream << "\"" << pi->first << "\"\n";
+      for(cmDepends::DependencyVector::const_iterator di = pi->second.begin();
+          di != pi->second.end(); ++ di)
+        {
+        cmakefileStream << "  \"" << *di << "\" ";
+        cmakefileStream << "\"" << pi->first << "\"\n";
+        }
       }
     cmakefileStream << "  )\n";
 
@@ -2204,7 +2208,7 @@ cmLocalUnixMakefileGenerator3::AddImplicitDepends(cmTarget const& tgt,
                                                   const char* obj,
                                                   const char* src)
 {
-  this->ImplicitDepends[tgt.GetName()][lang][obj] = src;
+  this->ImplicitDepends[tgt.GetName()][lang][obj].push_back(src);
 }
 
 //----------------------------------------------------------------------------