VS: Add internal APIs to find MSBuild, devenv/VCExpress, and msdev

Teach the VS generators to compute the locations of these tools directly
from registry entries.  Add internal APIs to get the locations on demand.

1 files changed, 20 insertions, 0 deletions

diff --git a/Source/cmGlobalVisualStudio8Generator.cxx b/Source/cmGlobalVisualStudio8Generator.cxx
index b9bc1ae..949dd1b 100644
--- a/Source/cmGlobalVisualStudio8Generator.cxx
+++ b/Source/cmGlobalVisualStudio8Generator.cxx
@@ -105,6 +105,26 @@ cmGlobalVisualStudio8Generator::cmGlobalVisualStudio8Generator(
 }
 
 //----------------------------------------------------------------------------
+std::string cmGlobalVisualStudio8Generator::FindDevEnvCommand()
+{
+  // First look for VCExpress.
+  std::string vsxcmd;
+  std::string vsxkey =
+    "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VCExpress\\";
+  vsxkey += this->GetIDEVersion();
+  vsxkey += ";InstallDir";
+  if(cmSystemTools::ReadRegistryValue(vsxkey.c_str(), vsxcmd,
+                                      cmSystemTools::KeyWOW64_32))
+    {
+    cmSystemTools::ConvertToUnixSlashes(vsxcmd);
+    vsxcmd += "/VCExpress.exe";
+    return vsxcmd;
+    }
+  // Now look for devenv.
+  return this->cmGlobalVisualStudio71Generator::FindDevEnvCommand();
+}
+
+//----------------------------------------------------------------------------
 ///! Create a local generator appropriate to this Global Generator
 cmLocalGenerator *cmGlobalVisualStudio8Generator::CreateLocalGenerator()
 {