libkml @1.3.0: fails to build due to a conflict with minizip headers: error: redefinition of typedef ‘open_file_func’

[barracuda156]

In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/unzip.c:44:
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/iomem_simple.h:38: error: redefinition of typedef ‘open_file_func’
/opt/local/include/minizip/ioapi.h:137: error: previous declaration of ‘open_file_func’ was here
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/iomem_simple.h:39: error: redefinition of typedef ‘read_file_func’
/opt/local/include/minizip/ioapi.h:138: error: previous declaration of ‘read_file_func’ was here
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/iomem_simple.h:40: error: redefinition of typedef ‘write_file_func’
/opt/local/include/minizip/ioapi.h:139: error: previous declaration of ‘write_file_func’ was here
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/iomem_simple.h:41: error: redefinition of typedef ‘tell_file_func’
/opt/local/include/minizip/ioapi.h:143: error: previous declaration of ‘tell_file_func’ was here
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/iomem_simple.h:42: error: redefinition of typedef ‘seek_file_func’
/opt/local/include/minizip/ioapi.h:144: error: previous declaration of ‘seek_file_func’ was here
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/iomem_simple.h:43: error: redefinition of typedef ‘close_file_func’
/opt/local/include/minizip/ioapi.h:140: error: previous declaration of ‘close_file_func’ was here
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gis_libkml/libkml/work/libkml-1.3.0/src/kml/base/contrib/minizip/iomem_simple.h:44: error: redefinition of typedef ‘testerror_file_func’
/opt/local/include/minizip/ioapi.h:141: error: previous declaration of ‘testerror_file_func’ was here

[barracuda156]

Oh, it requires minizip, but uses bundled headers instead.

[barracuda156]

I do not know why, but it seems that sources build contrib/minizip regardless of whether it is found by configure, so we cannot avoid conflicting headers. However, build with modern gcc works fine, so we can just blacklist Xcode gcc as an easy fix.

[ryandesign (Ryan Carsten Schmidt)]

Replying to barracuda156:

iomem_simple.h:38: error: redefinition of typedef ‘open_file_func’
ioapi.h:137: error: previous declaration of ‘open_file_func’ was here

This is ​https://github.com/libkml/libkml/issues/253.

Replying to barracuda156:

Oh, it requires minizip, but uses bundled headers instead.

That is unexpected and surely not what I intended. I'm not sure what needs to be changed to make libkml use only MacPorts minizip and not its bundled headers.

[ryandesign (Ryan Carsten Schmidt)]

Replying to ryandesign:

Replying to barracuda156:

iomem_simple.h:38: error: redefinition of typedef ‘open_file_func’
ioapi.h:137: error: previous declaration of ‘open_file_func’ was here

This is ​https://github.com/libkml/libkml/issues/253.\

It might be fixed by the first chunk of this commit:

​https://github.com/libkml/libkml/commit/d4adfd8a8862ce460314e514b26cffc9815f06ea

[ryandesign (Ryan Carsten Schmidt)]

In 67f9ad1f087eae352fb54918fc21045a6d884704/macports-ports (master):

libkml: Fix typedef redefinition and some warnings

Closes: #70349