GCC 3.0 20010614 bootstrap failure due to locale collation problems

[Phil Richards]

Summary: if LC_COLLATE is honoured by sed, and LC_COLLATE is set to a non-"C"
	value when LC_ALL isn't set, then "make bootstrap" of 3.0 fails

My platform: Mandrake GNU/Linux 8.0

Did "configure --prefix=$HOME/gcc3 --enable-threads", and "make bootstrap"
(in separate build directory).  Bootstrap build failed during build of
libstdc++-v3/libsupc++ directory with:

In file included from ../../../../gcc-3.0-20010614/libstdc++-v3/libsupc++/eh_alloc.cc:39:
../include/bits/gthr.h:29:2: invalid preprocessing directive #_GLIBCPP_ifndef
[...lots of similar...]

Had a dig around, and discovered that the gthr.h file was generated by
gcc-3.0-20010614/libstdc++-v3/configure using the line:

sed '/^#/s/\([A-Z_][A-Z_]*\)/_GLIBCPP_\1/g' <$d/gthr.h-in >$d/gthr.h

Problem is that these character patterns are locale-sensitive (Mandrake
sets my LC_COLLATE to en_GB, but doesn't set LC_ALL), so that when applied
to:

#define ABC 1

the result is:

#_GLIBCPP_define _GLIBCPP_ABC 1

(sed is GNU sed 3.02, GLIBC 2.2.2)

Setting LC_COLLATE (or LC_ALL) to "C" makes things work correctly again.
Configure checks (and fixes) only if LC_ALL is set (plus some others),
not LC_COLLATE.  (This has to be done for the "make bootstrap", not just the
configure.)

(Note: Also tried without --enable-threads, same problem. This didn't [seem]
to occur on the previous tarball 20010527, which was configured the same way.)

Phil, pgr at derived-software dot demon dot co dot uk