--- a/mingwmake.bat	Thu Oct 30 21:43:54 2014 +0000
+++ b/mingwmake.bat	Thu Oct 30 22:18:24 2014 +0000
@@ -3,6 +3,14 @@
 @REM type mingwmake, and wait...
 @REM do not edit - automatically generated from ProjectDefinition
 @REM -------
-make.exe -N -f bc.mak -DUSEMINGW=1 %*
+@SET DEFINES=
+@REM Kludge got Mercurial, cannot be implemented in Borland make
+@FOR /F "tokens=*" %%i in ('hg root') do SET HGROOT=%%i
+@IF "%HGROOT%" NEQ "" SET DEFINES=%DEFINES% "-DHGROOT=%HGROOT%"
+
+@pushd ..\..\stx\rules
+@call find_mingw.bat
+@popd
+make.exe -N -f bc.mak %DEFINES% %USEMINGW_ARG% %*