jom can't handle Makefiles when qmake is uses a source directory with spaces (e.g: C:\program files...)

1) set environment variables (to have qmake, relevant libraries and jom)

set PATH=C:\Qt\5.3\msvc2013_opengl\bin;C:\Qt\Tools\QtCreator\bin;%PATH%

2) run vcvars32.bat
call "c:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\bin\vcvars32.bat"

3) make sure you're on build dir
cd BUILD_DIR

4) run qmake using the SOURCE_DIR using proper spec and quotes in the path.
qmake -r -spec win32-msvc2013 "C:\Program Files (x86)\Jenkins\workspace\testproject\releasetype\release"

5) build with jom
jom

Example of error:

-DQT_WIDGETS_LIB -DQT_NETWORK_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I"C:\Program Files (x86)\Jenkins\workspace\testproject\releasetype\debug\spec\win32-msvc2013\slippymap" -I"inc" -I"C:\Qt\5.3\msvc2013_opengl\include" -I"C:\Qt\5.3\msvc2013_opengl\include\QtWidgets" -I"C:\Qt\5.3\msvc2013_opengl\include\QtNetwork" -I"C:\Qt\5.3\msvc2013_opengl\include\QtGui" -I"C:\Qt\5.3\msvc2013_opengl\include\QtCore" -I"debug" -I"." -I"C:\Qt\5.3\msvc2013_opengl\mkspecs\win32-msvc2013" -Fodebug\ @C:\Windows\TEMP\testproject.obj.3828.31.jom
cl : Command line warning D9002 : ignoring unknown option '-std=c++0x'
cl : Command line warning D9024 : unrecognized source file type 'C:\Program', object file assumed
cl : Command line warning D9027 : source file 'C:\Program' ignored
cl : Command line warning D9024 : unrecognized source file type 'Files', object file assumed
cl : Command line warning D9027 : source file 'Files' ignored

I worked around it by using a different directory for jenkins (Without spaces) and it worked fine.

It works fine if you use mingw32-make (with the proper spec of qmake win32-g++, of course) which leads me to believe this is an issue with jom's ability to handle paths with spaces the way mingw32-make does.

Missing Info:

nmake works as intended and produces the correct binaries (regardless of the appearance of spaces in the SOURCE_DIR)

I made a quick test using 2 folders
SOURCE_DIR_WITHOUT_SPACES:
"C:\builds\jenkins\lightmaps\win32-msvc2013"
SOURCE_DIR_WITH_SPACES:
"C:\builds\jenkins\lightmaps\win32-msvc2013 - copia"

(copia means copy in spanish)

Somewhere in the jom processing, it doesn't keep the paths with spaces correctly:

c1xx : fatal error C1083: Cannot open source file: 'copia\slippymap\lightmaps.cpp': No such file or directory

Attached files with the output of each combination of jom and nmake with or without spaces.