LANG variable on RS/6000
AIX on the RS/6000 provides National Language Support
(NLS) for environments outside of the United States. Compilers and
assemblers use NLS to support locale-specific representations of
various objects including floating-point numbers (`.' vs `,'
for separating decimal fractions). There have been problems reported
where the library linked with GCC does not produce the same
floating-point formats that the assembler accepts. If you have this
problem, set the LANG environment variable to either `C'
(the C language locale) or `En_US' (the American English locale);
either value should work.