make -k check complains autogen: symbol lookup error: autogen: undefined symbol: gh_enter

make -k check complains autogen: symbol lookup error: autogen: undefined symbol: gh_enter

[Patrick Horgan]

Linux dell 2.6.31-19-generic #56-Ubuntu SMP Thu Jan 28 01:26:53 UTC 2010 
i686 GNU/Linux
gcc (GCC) 4.5.0 20100228 (experimental)

Someone recently suggested I might be able to help in libstdc++, and I'm 
reading the contribution guide and trying things out while I think about 
it.  After a fresh svn update and a make bootstrap I try to do a make -k 
check from the root and almost immediately get an autogen error:

make -k check 2>&1 | tee logit
make[1]: Entering directory `/usr/local/gccbuild'
make[2]: Entering directory `/usr/local/gccbuild/fixincludes'
autogen -T ../../gcc/fixincludes/check.tpl 
../../gcc/fixincludes/inclhack.def
autogen: symbol lookup error: autogen: undefined symbol: gh_enter
make[2]: *** [check] Error 127
make[2]: Leaving directory `/usr/local/gccbuild/fixincludes'
make[1]: *** [check-fixincludes] Error 2

Is this something to be concerned about?  A search of the mailing list 
archives for gcc, gcc-help and libstdc++ for gh_enter returned no 
results, though a google search found an old resolved fortran bug 
(http://www.mail-archive.com/gcc-bugs@gcc.gnu.org/msg199805.html) with 
the same symptoms????  Although this is an autogen bug there's an entry 
point for guile gh_enter()--must be related.  Is there something I just 
don't have installed?

The tests then continue then eventually fail:

make[4]: Leaving directory `/usr/local/gccbuild/i686-pc-linux-gnu/libgomp'
make[3]: Leaving directory `/usr/local/gccbuild/i686-pc-linux-gnu/libgomp'
make[2]: Leaving directory `/usr/local/gccbuild/i686-pc-linux-gnu/libgomp'
make[1]: Target `check-target' not remade because of errors.
make[1]: Leaving directory `/usr/local/gccbuild'
make: *** [do-check] Error 2
make: Target `check' not remade because of errors.