[Bug 17538] Guitar Pro freezes with own GDIPLUS.DLL, renders incorrectly with Wine's

http://bugs.winehq.org/show_bug.cgi?id=17538

--- Comment #15 from sorath   2009-06-21 06:56:33 ---
In the http://wiki.winehq.org/RegressionTesting is describing the problem of
compiling old wine-version:
> Note >that old wine versions can give trouble compiling because of changes to >freetype, 
> http://www.winehq.org/pipermail/wine-patches/2008-%3ESeptember/060764.html >explains this and has a patch.

I had encounter a problem of applying a patch to sourcecode for "FT_MulFix
function to Freetype cvs head" (see the link in quote above), i.e. I until
don't understand how to create own working patch and apply it to wine-0.9.57
and wine-0.9.58 sourcecode to avoid of "freetype.c" compilation error:

...
freetype.c:166: error: 'FT_MulFix' undeclared here (not in a function)
freetype.c:166: warning: type defaults to 'int' in declaration of 'pFT_MulFix'
freetype.c: In function 'WineEngGetOutlineTextMetrics':
freetype.c:4421: error: called object 'pFT_MulFix' is not a function
freetype.c:4422: error: called object 'pFT_MulFix' is not a function
freetype.c:4424: error: called object 'pFT_MulFix' is not a function
freetype.c:4432: error: called object 'pFT_MulFix' is not a function
freetype.c:4432: error: called object 'pFT_MulFix' is not a function
freetype.c:4436: error: called object 'pFT_MulFix' is not a function
freetype.c:4440: error: called object 'pFT_MulFix' is not a function
freetype.c:4516: error: called object 'pFT_MulFix' is not a function
freetype.c:4517: error: called object 'pFT_MulFix' is not a function
freetype.c:4518: error: called object 'pFT_MulFix' is not a function
freetype.c:4519: error: called object 'pFT_MulFix' is not a function
freetype.c:4520: error: called object 'pFT_MulFix' is not a function
freetype.c:4521: error: called object 'pFT_MulFix' is not a function
freetype.c:4522: error: called object 'pFT_MulFix' is not a function
freetype.c:4523: error: called object 'pFT_MulFix' is not a function
freetype.c:4524: error: called object 'pFT_MulFix' is not a function
freetype.c:4529: error: called object 'pFT_MulFix' is not a function
freetype.c:4530: error: called object 'pFT_MulFix' is not a function
freetype.c:4531: error: called object 'pFT_MulFix' is not a function
freetype.c:4532: error: called object 'pFT_MulFix' is not a function
freetype.c:4533: error: called object 'pFT_MulFix' is not a function
freetype.c:4534: error: called object 'pFT_MulFix' is not a function
freetype.c:4535: error: called object 'pFT_MulFix' is not a function
freetype.c:4536: error: called object 'pFT_MulFix' is not a function
freetype.c:4537: error: called object 'pFT_MulFix' is not a function
freetype.c:4538: error: called object 'pFT_MulFix' is not a function
freetype.c:4543: error: called object 'pFT_MulFix' is not a function
freetype.c:4544: error: called object 'pFT_MulFix' is not a function
make[2]: *** [freetype.o] Error 1
make[2]: Leaving directory
`/mnt/distrib/tmp/portage/app-emulation/wine-0.9.57/work/wine-0.9.57/dlls/gdi32'
make[1]: *** [gdi32] Error 2
make[1]: Leaving directory
`/mnt/distrib/tmp/portage/app-emulation/wine-0.9.57/work/wine-0.9.57/dlls'
make: *** [dlls] Error 2
 *
 * ERROR: app-emulation/wine-0.9.57 failed
....

Could anybody help me to gain an understanding in applyng this patch?