gdal build fails when qhull port is active

[gnw3]

On both El Capitan and Snow Leopard, "upgrade gdal" fails if the variants require a local build.

With an active qhull port, the build fails to find libqhull.h, although

$ port installed qhull
The following ports are currently installed:
qhull @2012.1_3 (active)

$ locate libqhull.h
/opt/local/include/libqhull/libqhull.h

From config.log:

configure:29172: checking libqhull/libqhull.h usability
configure:29172: /usr/bin/clang -c -pipe -DGDAL_COMPILATION -arch x86_64 -I/opt/local/include -I/opt/local/include conftest.c >&5
configure:29172: $? = 0
configure:29172: result: yes
configure:29172: checking libqhull/libqhull.h presence
configure:29172: /usr/bin/clang -E -I/opt/local/include -I/opt/local/include conftest.c
configure:29172: $? = 0
configure:29172: result: yes

and config.status has:

S["EXTRA_INCLUDES"]="-I/usr/local/include/qhull -I/usr/local/include/qhull -I/opt/local/include -I/opt/local -I/opt/local/include -I/opt/local -I/opt/local/include -I/op"\
"t/local/include -I/opt/local/include -I/opt/local -I/opt/local/include -I/opt/local -I/opt/local/include "

This matches what is installed

$ cd /opt/local/include
$ ls -ld qhull libqhull
drwxr-xr-x  25 root  admin  850 23 Mar 13:38 libqhull
lrwxr-xr-x   1 root  admin   27 30 Jan 00:18 qhull -> /opt/local/include/libqhull

Gdal provides libqhull:

$ cd $(port dir gdal)/work/gdal-2.1.0
$ find . -name libqhull.h
./alg/libqhull/libqhull.h

A workaround is to deactivate qhull port, build gdal, activate qhull, then upgrade outdated.

[Veence (Vincent)]

Thanks for reporting. I'm going to look into this.

[mndavidoff (Monte Davidoff)]

Cc Me!

[Veence (Vincent)]

Should be fixed in r148372. In the first place, I updated qhull to 2015.2, the current version. Next, I altered gdal’s Portfile to make qhull a mandatory dependency. This way, all should work nicely. Please tell me.

[mndavidoff (Monte Davidoff)]

Replying to vince@…:

Should be fixed in r148372. ... Please tell me.

sudo port -vs install gdal completed successfully for me. Thanks!

[Veence (Vincent)]

Fine! Thanks for giving it a stab.

[gnw3]

Replying to vince@…:

Should be fixed in r148372. In the first place, I updated qhull to 2015.2, the current version. Next, I altered gdal’s Portfile to make qhull a mandatory dependency. This way, all should work nicely. Please tell me.

Thanks. With the changes, gdal builds for me on El Capitan and simple tests using gdal_grid (with options to trigger Delauney triangulation) work, but the new qhull fails to build on Snow Leopard with gcc-4.2. It does build using:

sudo port -s upgrade qhull configure.compiler=macports-clang-3.6

so you may want to blacklist older gcc-4.2 (the gcc5 Portfile can provide some examples)