seamonkey port compiling error

[Erdos New]

i tried to install 'seamonkey' to my freebsd10.1 32-bit system.  however, encountered errors:
root at oblivion:/usr/ports/www/seamonkey # make install 


install seamonky:
llvm[6]: Compiling IndexBody.cpp for Release build (PIC)
llvm[6]: Compiling IndexDecl.cpp for Release build (PIC)
llvm[6]: Compiling IndexTypeSourceInfo.cpp for Release build (PIC)
llvm[6]: Compiling Indexing.cpp for Release build (PIC)
llvm[6]: Compiling IndexingContext.cpp for Release build (PIC)
llvm[6]: Linking Release Shared Library libclang.so
llvm[6]: Building Release Archive Library libclang.a
gmake[6]: Leaving directory '/usr/ports/lang/clang36/work/llvm-3.6.2.src/tools/clang/tools/libclang'
gmake[6]: Entering directory '/usr/ports/lang/clang36/work/llvm-3.6.2.src/tools/clang/tools/c-index-test'
llvm[6]: Compiling c-index-test.c for Release build
llvm[6]: Linking Release executable c-index-test (without symbols)
/usr/ports/lang/clang36/work/llvm-3.6.2.src/Release/lib/libLLVM-3.6.so: undefined reference to `futimens at FBSD_1.4'
c++: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[6]: *** [/usr/ports/lang/clang36/work/llvm-3.6.2.src/Makefile.rules:1428: /usr/ports/lang/clang36/work/llvm-3.6.2.src/Release/bin/c-index-test] Error 1
gmake[6]: Leaving directory '/usr/ports/lang/clang36/work/llvm-3.6.2.src/tools/clang/tools/c-index-test'
gmake[5]: *** [/usr/ports/lang/clang36/work/llvm-3.6.2.src/Makefile.rules:883: all] Error 1
gmake[5]: Leaving directory '/usr/ports/lang/clang36/work/llvm-3.6.2.src/tools/clang/tools'
gmake[4]: *** [/usr/ports/lang/clang36/work/llvm-3.6.2.src/Makefile.rules:883: all] Error 1
gmake[4]: Leaving directory '/usr/ports/lang/clang36/work/llvm-3.6.2.src/tools/clang'
===> Compilation failed unexpectedly.
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to
the maintainer.
*** Error code 1

Stop.
make[3]: stopped in /usr/ports/lang/clang36
*** Error code 1

Stop.
make[2]: stopped in /usr/ports/lang/clang36
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/www/seamonkey
*** Error code 1

Stop.
make: stopped in /usr/ports/www/seamonkey