[GEM-dev] Gem build error on Mac OS X when enabling FTGL in Fink

[IOhannes m zmoelnig]

hi all.

i have been wondering for some days now how to solve this.

chris clepper wrote:
> You have to use the Apple Quicktime API and not libquicktime with GEM on
> OSX.  Delete all instances of libquicktime from the OSX configure
> scripts and use the -framework Quicktime instead.

that is not the problem.
Gem rigtheously tries to use the QuickTime framework and not the
libquicktime on OSX (configure detects that correctly).

the problem is:
when using QuickTime framework, you will have to include
"QuickTime/QuickTime.h" (which is provided bythe framework).
unfortunately, libquicktime provides quicktime/quicktime.h itself.
in theory they can live together, because fink installs
libquicktime-headers into /sw/include.

since FTGL is now also installed via fink, /sw/include has been added to
the include-paths of Gem: unfortunately this includes libquicktimes
quicktime/quicktime.h instead of the framework's headers.


options i see:
- on debian FTGL-headers are installed in /usr/include/FTGL, and you
have to explicitely tell Gem to add /usr/include/FTGL to its include paths.
if fink would install the the FTGL-headers to /sw/include/FTGL, then
there is no need to add /sw/include to the include-paths of Gem and no
conflict would arise with the quicktime-headers.
- if (and only if) the libquicktime headers are really
"quicktime/quicktime.h" (note the case!), then it might help to have
/sw/ be on a case-sensitive filesystem (but i don't know whether the
libquicktime-headers are really all lowercase, and even if so, whether
this would really help at all)
- delete /sw/include/quicktime, since it is there for legacy reasons
only; as the warning says, people using libquicktime should use
lqt/quicktime.h anyhow.


mfga.sdr
IOhannes