Cannot build on Centos-7

[etheory]

Hi there! I've been following the instructions found here:

building/centos7_build.md

and when it gets to the boost section, I get the following error:

[  9%] Performing build step for 'Boost'
error: Configuration file 'python-config.jam' not found in '/scratch/dev/openmoonray/build/Boost-prefix/src/Boost'.

gmake[2]: *** [CMakeFiles/Boost.dir/build.make:89: Boost-prefix/src/Boost-stamp/Boost-build] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:143: CMakeFiles/Boost.dir/all] Error 2
gmake: *** [Makefile:91: all] Error 2

I've tried what seem like all the obvious things, but I cannot figure out how to resolve this problem. Thanks!

[rgwilson68]

Hi!

In step 2 of centos7_build.md the last 2 lines are:
cd /
ln -s source/openmoonray/building .

This creates a symlink from /building to the 'building' subdirectory of the cloned source (assuming you cloned to "/source"). So "/building/python-config.jam" should exist as a file after this step.

CMakeLists.txt relies on this at line 30, in the Boost section, where it says "--user-config=/building/python-config.jam". I assume the error message you are getting means that the file isn't there...

If you can't (or don't want to) create a symlink at "/building", you can edit this line in CMakeLists.txt to specify the location directly (e.g. "/source/building/python-config.jam", or wherever you have the openmoonray repo cloned).

The same thing applies to line 154 of CMakeLists.txt, where the embree build uses "/building/embree_missing_type.patch"

In the next release, this issue will be addressed : these files are specified relative to CMakeLists.txt instead of using an absolute path.

[etheory]

That didn't help sorry, I still get the same error:

error: Configuration file 'python-config.jam' not found in '/building'.

Even though the file does now exist.

I also followed all of the linking stuff in the guide.

[etheory]

I got it working by changing:

BUILD_COMMAND ./b2 install -j64 --user-config=/building/python-config.jam --with_python variant=release toolset=gcc link=shared threading=multi

to an absolute path:
BUILD_COMMAND ./b2 install -j64 --user-config=FULL_PATH_TO/python-config.jam --with_python variant=release toolset=gcc link=shared threading=multi

But it still doesn't build, now I just get a huge number of boost errors. Still looking,

[rgwilson68]

Check that the contents of python-config.jam match your python install : the default is python 3.6 with executable in /usr/bin/python3, includes in /usr/include/python3.6m and library in /usr/lib64

[etheory]

Thanks @rgwilson68, I managed to get past that and am still grappling with other dependency issues, but I have a path through now I think thank you! Looks like I'm slowly getting there.