This is a Directory so need to add /r option.

diff --git a/buildtools/Cmake/simgrid.nsi.in b/buildtools/Cmake/simgrid.nsi.in
index e2f6151..2191dec 100644 (file)
--- a/buildtools/Cmake/simgrid.nsi.in
+++ b/buildtools/Cmake/simgrid.nsi.in
@@ -356,7 +356,7 @@ section "Uninstall"
        RMDir  "$SMPROGRAMS\SimGrid"\r
        \r
        # delete PCRE\r
        RMDir  "$SMPROGRAMS\SimGrid"\r
        \r
        # delete PCRE\r

-       RMDir   "$INSTDIR\GnuWin32"\r
+       RMDir   /r "$INSTDIR\GnuWin32"\r

        \r
        # Delete variable\r
        DeleteRegValue ${env_hklm} SIMGRID_ROOT\r
        \r
        # Delete variable\r
        DeleteRegValue ${env_hklm} SIMGRID_ROOT\r