Hello,

I recently upgraded my mac to MacOS Catalina and hcustom doesn't want to work for me.

There seems to be 2 issues.

1. clang++ does not like one of the default c flags “-arch unknown” as seen below when running “hcustom -c”

-DVERSION=\“17.5.425\” -D_GNU_SOURCE -DMBSD -DMBSD_COCOA -DMBSD_INTEL -arch unknown -DSIZEOF_VOID_P=4 -DFBX_ENABLED=1 -DOPENCL_ENABLED=1 -DOPENVDB_ENABLED=1 -DSESI_LITTLE_ENDIAN -DENABLE_THREADS -DUSE_PTHREADS -D_REENTRANT -D_FILE_OFFSET_BITS=64 -c -mmacosx-version-min=10.10 -DGCC4 -DGCC3 -Wno-deprecated -std=c++14 -isystem /Applications/Houdini/Houdini17.5.425/Frameworks/Houdini.framework/Versions/Current/Resources/toolkit/include -isystem /Applications/Houdini/Houdini17.5.425/Frameworks/Houdini.framework/Versions/Current/Resources/toolkit/include/python2.7 –sysroot='/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk' -Wall -W -Wno-parentheses -Wno-sign-compare -Wno-reorder -Wno-uninitialized -Wunused -Wno-unused-parameter -O3

When I change that flag manually to x86_64 or just remove it completely I get issue #2.

2. I get this error.

/Applications/Houdini/Houdini17.5.425/Frameworks/Houdini.framework/Versions/Current/Resources/toolkit/include/SYS/SYS_Math.h:1221:12: error:
cast from pointer to smaller type ‘uint’ (aka ‘unsigned int’) loses
information
return (uint)ptr;

Any ideas? I also tried using Houdini 17.0.416 and the brand new 18.0.287 but still get the same results.

It looks like there is an issue with $MACHTYPE being set to “unknown” for tcsh on Catalina, which causes some issues with old code in hcustom for supporting 32-bit or PPC compilation. This should be fixed soon, but you could also consider using the HDK CMake module too

For step 2 you also missed the -DAMD64 and -DSIZEOF_VOID_P=8 flags, so you're attempting to compile 32-bit code paths.

This should be fixed in tomorrow's 17.5 build, and the daily 18.0 builds once they're available

Changing those flags does the trick!

Thanks for the help!

I can confirm that the fix worked for Houdini 17.5.454!

Thanks again!