libtool: invalid tag name: CC

[Leonard den Ottolander]

Hi,

Building gettext-0.14.5 on Minix-3.1.2 aborts with a "libtool: invalid
tag name: CC" when building gettext-runtime. I would think 'CC' is a
valid tag name. Causing this is the regular expression at (around?) line
750 in (gettext-runtime/)libtool which comes from build-aux/ltmain.sh
(line 400).

Attached patch fixes the build on Minix (and probably other systems
where gcc is not the default compiler). It should be checked for
correctness as I do not know the definition for correct tag names
(although I assume any combination of the mentioned characters should
do).

Leonard.

-- 
mount -t life -o ro /dev/dna /genetic/research

ltmain.sh.diff
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