[MacPorts] #64141: gdal @3.3.1_2+postgresql13+proj8: Crash with GeoTIFF that uses JPEG compression

[MacPorts]

#64141: gdal @3.3.1_2+postgresql13+proj8: Crash with GeoTIFF that uses JPEG
compression
-------------------------------------------+--------------------
 Reporter:  bal-agates                     |      Owner:  (none)
     Type:  defect                         |     Status:  new
 Priority:  Normal                         |  Milestone:
Component:  ports                          |    Version:  2.7.1
 Keywords:  gdal GeoTIFF JPEG compression  |       Port:  gdal
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 The initial symptoms was QGIS crashing for a specific GeoTIFF file.  The
 problem appeared to be in gdal.  Reference
 [https://github.com/OSGeo/gdal/issues/4948] for details of the problem.  A
 quick summary is the MacPorts gdal project uses configuration settings:
 {{{
 --with-libtiff=internal
 --with-jpeg=internal
 --with-proj=${prefix}/lib/proj8
 }}}
 Port proj8 @8.2.0_0+tiff depends on port tiff.  libproj.22.dylib
 references libtiff.5.dylib.

 Port tiff @4.3.0_0 depends on port libjpeg_turbo.  libtiff.5.dylib
 references libjpeg.8.dylib

 Port libjpeg-turbo @2.1.2_0 provides libjpeg.8.dylib

 Apparently references to libjpeg.8.dylib anywhere in the libgdal hierarchy
 has the potential to use those rather than the built-in functions
 generated with "--with-jpeg=internal".  The built-in JPEG functions are
 version 62 and the libjpeg-turbo are version 80 and apparently they are
 completely incompatible.

 I am not certain of the best way to fix the problem.  What I did on my
 machine was modify the Portfile to use
 {{{
 --with-libtiff=/opt/local
 --with-jpeg=/opt/local
 }}}
 That would appear safe for builds with variant proj8.  Probably better to
 use ${prefix}.  Those settings could be changed just for that variant.
 One would need to check the other variants to see if the same solution
 applies.  Another solution might be to explicitly make port tiff and jpeg-
 turbo dependents of gdal and then change the above settings for all
 builds.  Maybe there is another solution I haven't thought of?

-- 
Ticket URL: <https://trac.macports.org/ticket/64141>
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