Index: RosBE/RosBE-Windows/Powershell/Build.ps1
===================================================================
--- RosBE/RosBE-Windows/Powershell/Build.ps1	(revision 1302)
+++ RosBE/RosBE-Windows/Powershell/Build.ps1	(working copy)
@@ -63,9 +63,9 @@
         New-Item -path "$_ROSBE_LOGDIR" -type directory
     }
     $file = "$_ROSBE_LOGDIR\BuildLog-$ENV:ROS_ARCH-$DATENAME-$TIMENAME.txt"
-    &{IEX "&'mingw32-make.exe' -j $MAKE_JOBS $($args)"} $($args) 2>&1 | tee-object $file
+    &{IEX "&'mingw32-make.exe' -j $MAKE_JOBS MAKEFLAGS=-j$MAKE_JOBS $($args)"} $($args) 2>&1 | tee-object $file
 } else {
-    &{IEX "&'mingw32-make.exe' -j $MAKE_JOBS $($args)"} $($args)
+    &{IEX "&'mingw32-make.exe' -j $MAKE_JOBS MAKEFLAGS=-j$MAKE_JOBS $($args)"} $($args)
 }
 if ($_ROSBE_SHOWTIME -eq 1) {
     $sw.Stop()
Index: RosBE/RosBE-Windows/Root/Build-Shared.cmd
===================================================================
--- RosBE/RosBE-Windows/Root/Build-Shared.cmd	(revision 1302)
+++ RosBE/RosBE-Windows/Root/Build-Shared.cmd	(working copy)
@@ -59,9 +59,9 @@
     if not exist "%_ROSBE_LOGDIR%\." (
         mkdir "%_ROSBE_LOGDIR%" 1> NUL 2> NUL
     )
-    %BUILDTIME_COMMAND% mingw32-make.exe -j %MAKE_JOBS% %* 2>&1 | tee.exe "%_ROSBE_LOGDIR%\BuildLog-%ROS_ARCH%-%datename%-%timename%.txt"
+    %BUILDTIME_COMMAND% mingw32-make.exe -j %MAKE_JOBS% MAKEFLAGS=-j%MAKE_JOBS% %* 2>&1 | tee.exe "%_ROSBE_LOGDIR%\BuildLog-%ROS_ARCH%-%datename%-%timename%.txt"
 ) else (
-    %BUILDTIME_COMMAND% mingw32-make.exe -j %MAKE_JOBS% %*
+    %BUILDTIME_COMMAND% mingw32-make.exe -j %MAKE_JOBS% MAKEFLAGS=-j%MAKE_JOBS% %*
 )
 
 :EOC