The Intel C++ compiler »icpc« does not work after installing dev-lang/icc-10.0.026. In the ebuild only »icc« is patched in the "Fixing paths and tagging" part. Running icpc results in this error: /opt/intel/cce/10.0.026/bin/icpc: line 40: INSTALLDIR: No such file or directory The solution is simple: Just update the ebuild to also handle icpc... The second problem is that icc-10.0.026 does not work out of the box with gcc 4.2. This is the error I get: icpc -O2 bench.cpp /usr/lib/gcc/x86_64-pc-linux-gnu/4.2.1/include/g++-v4/ext/atomicity.h(51): error: identifier "__sync_fetch_and_add" is undefined { return __sync_fetch_and_add(__mem, __val); } The solution is to commend out the line: #define _GLIBCXX_ATOMIC_BUILTINS 1 in /usr/lib64/gcc/x86_64-pc-linux-gnu/4.2.1/include/g++-v4/x86_64-pc-linux-gnu/bits/c++config.h . Reproducible: Always Steps to Reproduce: 1. run icpc Actual Results: opt/intel/cce/10.0.026/bin/icpc: line 40: INSTALLDIR: No such file or directory Expected Results: Compile the C++ program.
Hi, Thanks for reporting. Just fixed the icpc issue in cvs. Concerning compatibility with gcc-4.2, it is better to file another bug, and probably toolchain will need to be CC'ed. Also the solution proposed make use of gcc-4.2.1 which is not in the official tree yet. Sébastien
