[Geotiff] AC_CHECK_HEADERS(geotiff/geotiff.h) fails for libgeotiff 1.4.2

[Even Rouault]

Charles,

Could you confirm if reverting back to #include "geo_config.h" in geotiff.h and 
cpl_serv.h cause issues on Windows ? I think you suggested using <> instead of 
"" to avoid including the wrong geo_config.h in case there would have been one 
in the source tree, but I've also fixed that issue by not including the 
generated geo_config.h with "make dist".

Even

> Between RC2 and 1.4.2 final geotiff.h was changed to include
> <geo_config.h> instead of "geo_config.h".
> 
> This causes the librasterlite2 configure to fail because it cannot find
> geo_config.h any more, because the Debian package installs the geotiff
> headers in /usr/include/geotiff instead of /usr/include.
> 
> I think the change should be reverted at least for geotiff.h, I'm not
> sure if the change in cpl_serv.h should be reverted too.
> 
> These changes were committed in r2736 to fix build issues on Windows,
> will reverting to #include "geo_config.h" reintroduce the build failures
> on Windows? If so, we should probably deal with this in Debian by
> specifying the custom include path used by the libgeotiff package.
> 
> Kind Regards,
> 
> Bas

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