issue with coreutils?

check passes, then dies on install with complaint from `/usr/local/bin/ginstall`

```
Starting iteration 9
Starting iteration 10
The test appears to have succeeded.
PASS: test_cpp
===================
All 10 tests passed
===================
==> make install
make install 
test -z "/usr/local/Cellar/bdw-gc/7.2alpha6/lib" || /usr/local/bin/gmkdir -p "/usr/local/Cellar/bdw-gc/7.2alpha6/lib"
test -z "/usr/local/Cellar/bdw-gc/7.2alpha6/share/gc" || /usr/local/bin/gmkdir -p "/usr/local/Cellar/bdw-gc/7.2alpha6/share/gc"
 /bin/sh ./libtool   --mode=install /usr/local/bin/ginstall -c   libgc.la libgccpp.la libcord.la '/usr/local/Cellar/bdw-gc/7.2alpha6/lib'
 /usr/local/bin/ginstall -c -m 644 doc/barrett_diagram doc/debugging.html doc/gc.man doc/gcdescr.html doc/README doc/README.amiga doc/README.arm.cross doc/README.autoconf doc/README.changes doc/README.cmake doc/README.contributors doc/README.cords doc/README.DGUX386 doc/README.dj doc/README.environment doc/README.ews4800 doc/README.hp doc/README.linux doc/README.Mac doc/README.MacOSX doc/README.macros doc/README.OS2 doc/README.rs6000 doc/README.sgi doc/README.solaris2 doc/README.uts doc/README.win32 doc/README.win64 doc/overview.html doc/tree.html doc/leak.html doc/gcinterface.html doc/scale.html doc/README.darwin doc/simple_example.html doc/porting.html '/usr/local/Cellar/bdw-gc/7.2alpha6/share/gc'
test -z "/usr/local/Cellar/bdw-gc/7.2alpha6/include" || /usr/local/bin/gmkdir -p "/usr/local/Cellar/bdw-gc/7.2alpha6/include"
libtool: install: /usr/local/bin/ginstall -c .libs/libgc.1.dylib /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgc.1.dylib
libtool: install: (cd /usr/local/Cellar/bdw-gc/7.2alpha6/lib && { ln -s -f libgc.1.dylib libgc.dylib || { rm -f libgc.dylib && ln -s libgc.1.dylib libgc.dylib; }; })
libtool: install: /usr/local/bin/ginstall -c .libs/libgc.lai /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgc.la
 /usr/local/bin/ginstall -c -m 644 include/extra/gc.h include/extra/gc_cpp.h '/usr/local/Cellar/bdw-gc/7.2alpha6/include'
test -z "/usr/local/Cellar/bdw-gc/7.2alpha6/lib/pkgconfig" || /usr/local/bin/gmkdir -p "/usr/local/Cellar/bdw-gc/7.2alpha6/lib/pkgconfig"
libtool: install: /usr/local/bin/ginstall -c .libs/libgccpp.1.dylib /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgccpp.1.dylib
 /usr/local/bin/ginstall -c -m 644 bdw-gc.pc '/usr/local/Cellar/bdw-gc/7.2alpha6/lib/pkgconfig'
test -z "/usr/local/Cellar/bdw-gc/7.2alpha6/include/gc" || /usr/local/bin/gmkdir -p "/usr/local/Cellar/bdw-gc/7.2alpha6/include/gc"
libtool: install: (cd /usr/local/Cellar/bdw-gc/7.2alpha6/lib && { ln -s -f libgccpp.1.dylib libgccpp.dylib || { rm -f libgccpp.dylib && ln -s libgccpp.1.dylib libgccpp.dylib; }; })
libtool: install: /usr/local/bin/ginstall -c .libs/libgccpp.lai /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgccpp.la
libtool: install: /usr/local/bin/ginstall -c .libs/libcord.1.dylib /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libcord.1.dylib
 /usr/local/bin/ginstall -c -m 644 include/gc_cpp.h include/gc_allocator.h include/gc.h include/gc_typed.h include/gc_inline.h include/gc_mark.h include/gc_cpp.h include/weakpointer.h include/new_gc_alloc.h include/gc_allocator.h include/gc_backptr.h include/gc_gcj.h include/leak_detector.h include/gc_amiga_redirects.h include/gc_pthread_redirects.h include/gc_config_macros.h include/gc_tiny_fl.h include/gc_version.h include/cord.h '/usr/local/Cellar/bdw-gc/7.2alpha6/include/gc'
libtool: install: (cd /usr/local/Cellar/bdw-gc/7.2alpha6/lib && { ln -s -f libcord.1.dylib libcord.dylib || { rm -f libcord.dylib && ln -s libcord.1.dylib libcord.dylib; }; })
/usr/local/bin/ginstall: will not overwrite just-created `/usr/local/Cellar/bdw-gc/7.2alpha6/include/gc/gc_cpp.h' with `include/gc_cpp.h'
/usr/local/bin/ginstall: will not overwrite just-created `/usr/local/Cellar/bdw-gc/7.2alpha6/include/gc/gc_allocator.h' with `include/gc_allocator.h'
make[2]: *** [install-pkgincludeHEADERS] Error 1
make[2]: *** Waiting for unfinished jobs....
libtool: install: /usr/local/bin/ginstall -c .libs/libcord.lai /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libcord.la
libtool: install: /usr/local/bin/ginstall -c .libs/libgc.a /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgc.a
libtool: install: chmod 644 /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgc.a
libtool: install: ranlib /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgc.a
ranlib: file: /usr/local/Cellar/bdw-gc/7.2alpha6/lib/libgc.a(checksums.o) has no symbols
```