Some ports (devel/freeocl for instance) won't compile easily with CLANG. I fugured out that sometimes CLANG is not by default including /usr/local/include into the CPP search path - obviously gcc/gcc46 does!
Compiling port devel/freeocl with CLANG on FreeBSD 10 ends up in this
error (after I fixed a casting issue in src/parser/parser.h):
[...]
[ 87%] Building CXX object src/CMakeFiles/FreeOCL.dir/utils/thread.cpp.o
[ 88%] Building CXX object src/CMakeFiles/FreeOCL.dir/utils/time.cpp.o
[ 90%] Building CXX object src/CMakeFiles/FreeOCL.dir/utils/threadpool.cpp.o
/usr/ports/devel/freeocl/work/FreeOCL-0.3.6-Source/src/utils/threadpool.cpp:21:10:
fatal error: 'atomic_ops.h' file not found
#include <atomic_ops.h>
^
1 error generated.
*** [src/CMakeFiles/FreeOCL.dir/utils/threadpool.cpp.o] Error code 1
Stop in /usr/ports/devel/freeocl/work/FreeOCL-0.3.6-Source.
*** [src/CMakeFiles/FreeOCL.dir/all] Error code 1
Stop in /usr/ports/devel/freeocl/work/FreeOCL-0.3.6-Source.
*** [all] Error code 1
Stop in /usr/ports/devel/freeocl/work/FreeOCL-0.3.6-Source.
*** [do-build] Error code 1
Stop in /usr/ports/devel/freeocl.
The header file in question is maintained by port devel/libatomic_ops,
which is cleanly installed.
Well, I feel a bit confused, since I do not know how to manage the
intransparent port framework (intransparent to me) to force the port's
Makefile to include via "-I/usr/local/include" the path in question.
Any suggestions?
By the way, the build backend is cmake which I'm completely unfamiliar
with. Can someone give a hint?
Thanks,
Oliver
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