Gerrit P. Haase wrote:With GNU as PIC is not an noop, when -DPIC is used to invoke gas the generated assembly is broken. I saw this problem with a reautoconfiscated version of GMP. This may be unusual, but there was libtool used to invoke gas.
While -DPIC is a noop for usual compilation, it is harmful when used as gas flag to compile assembly, I suggest to remove it entirely when target is cygwin. Change would be in libtool.m4 line 4971 ff in libtool-1.5.10.
Alternative: don't pass flag through when gas is called.
I don't see anywhere that "-DPIC" is ever invoked on cygwin. Please send a patch to libtool.m4 that fixes the problem for you.
The problem is when a user (or makefile) adds this -DPIC, which does no harm usually. Gerrit thought that it might be clever to strip it on cygwin when gas is involved, since this does harm.
Or maybe emit a warning to fix the makefile for cygwin.
(Gerrit: Really -DPIC, not -fPIC?)
BTW, somebody mentioned libtool CVS branch-2.0 as being too "cutting edge" for cygwin use...FYI, libtool-cvs-branch2.0 passes ALL regression tests which is better than libtool has EVER done on our platform. I'm thinking of releasing a test version of the next beta...
Ah! Cannot wait for that. I couldn't find a fix for my -o <noext> => exe problem so far. And libtool --debug is soo huge. -- Reini Urban http://xarch.tu-graz.ac.at/home/rurban/
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