Add x86 support to build_freetype.bat

The build script now detects the platform (`x64` vs `x86`) of `cl` and builds into the appropriate folder. This only works when `cl` is set up via `setup_cl_xxx.bat`. If `cl` is added directly to `PATH`, the detection will likely fail because it relies on the `%Platform%` variable.

Author: longtran2904

non-source/foreign/freetype2/build_freetype.bat

@@ -8,8 +8,6 @@ SET FILES=%FILES% %ROOT%\src\base\ftsystem.c
 SET FILES=%FILES% %ROOT%\src\base\ftinit.c
 SET FILES=%FILES% %ROOT%\src\base\ftdebug.c
 SET FILES=%FILES% %ROOT%\src\base\ftbase.c
-REM SET FILES=%FILES% %ROOT%\src\base\ftbbox.c
-REM SET FILES=%FILES% %ROOT%\src\base\ftglyph.c
 SET FILES=%FILES% %ROOT%\src\base\ftbitmap.c
 SET FILES=%FILES% %ROOT%\src\sfnt\sfnt.c
 SET FILES=%FILES% %ROOT%\src\truetype\truetype.c
@@ -20,11 +18,16 @@ SET FILES=%FILES% %ROOT%\src\psnames\psnames.c
 SET FILES=%FILES% %ROOT%\src\pshinter\pshinter.c
 
 SET BUILD_DIR=%ROOT%\..\x64
-if not exist "%BUILD_DIR%" mkdir "%BUILD_DIR%"
+IF "%Platform%" == "X86" (
+    SET BUILD_DIR=%ROOT%\..\x86
+) ELSE IF "%Platform%" == "x86" (
+    SET BUILD_DIR=%ROOT%\..\x86
+)
+IF NOT EXIST "%BUILD_DIR%" MKDIR "%BUILD_DIR%"
 cd %BUILD_DIR%
 
-del *.pdb
+del *.pdb > NUL 2> NUL
 cl /c /nologo /Zi /O2 /Fd:freetype.pdb /DFT2_BUILD_LIBRARY /I%ROOT% %FILES%
 lib /nologo /OUT:freetype.lib *.obj
-del *.obj
+del *.obj > NUL 2> NUL
 popd