[Bug 214258] devel/openmp: spurious libm dependency

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214258

            Bug ID: 214258
           Summary: devel/openmp: spurious libm dependency
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Keywords: needs-patch
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: bapt at FreeBSD.org
          Reporter: jbeich at FreeBSD.org
                CC: freebsd-toolchain at FreeBSD.org
             Flags: maintainer-feedback?(bapt at FreeBSD.org)
          Assignee: bapt at FreeBSD.org

LLVM openmp picks up math symbols despite not using them in any of its object
files.

$ cd /usr/ports/devel/openmp
$ make install
$ cd $(make -V WRKSRC)

$ fgrep -lr scalbnl .
./runtime/src/libgomp.so
./runtime/src/libiomp5.so
./runtime/src/libomp.so
./runtime/exports/lin_32e/lib/libomp.so

$ echo 'int main() { }' | cc ./runtime/src/libomp.so -xc -
./runtime/src/libomp.so: undefined reference to `scalbnl'
./runtime/src/libomp.so: undefined reference to `fmaxl'
./runtime/src/libomp.so: undefined reference to `logbl'
./runtime/src/libomp.so: undefined reference to `scalbnf'
./runtime/src/libomp.so: undefined reference to `logb'
./runtime/src/libomp.so: undefined reference to `logbf'
./runtime/src/libomp.so: undefined reference to `scalbn'
cc: error: linker command failed with exit code 1 (use -v to see invocation)

$ echo 'int main() { }' | cc -fopenmp -L/usr/local/lib -xc -
/usr/local/lib/libomp.so: undefined reference to `scalbnl'
/usr/local/lib/libomp.so: undefined reference to `fmaxl'
/usr/local/lib/libomp.so: undefined reference to `logbl'
/usr/local/lib/libomp.so: undefined reference to `scalbnf'
/usr/local/lib/libomp.so: undefined reference to `logb'
/usr/local/lib/libomp.so: undefined reference to `logbf'
/usr/local/lib/libomp.so: undefined reference to `scalbn'
cc: error: linker command failed with exit code 1 (use -v to see invocation)

-- 
You are receiving this mail because:
You are the assignee for the bug.