target/5505: Doubts about a patch for OSF

[Rainer Orth]

Richard B. Kreckel writes:

> Err, while trying to debug into the problem I discovered something
> that had escaped my attantion until now: compiling CLN and an example
> (examples/e, or tests/tests or whatever, never mind) with either -O1, -O2
> or -O1 -g resulted in a working test (the linker warnings are of course
> still present) while -O2 -fno-exceptions produced a crashing program.
> Also, these funny warnings:
>  as1: Warning: /tmp/ccb8ZbYD.s, line 6: macro instruction used $at
> appear only when I disable exceptions.  I hadn't noticed it so far because
> I *always* export CXXFLAGS="-O2 -fno-exceptions" prior to building
> CLN.  May I ask you how you configured and tested CLN?  You did not
> specify -fno-exceptions, did you?  Does it work when you do so?

I get those warnings and crashing test programs only when configuring with

CXXFLAGS='-fno-exceptions' CPPFLAGS="-DNO_ASM -DNO_PROVIDE_REQUIRE" \
	./configure --disable-shared --without-gmp 

CXXFLAGS=-fno-exceptions alone still works.

> Anyways, here is a g++ -v output as you requested:

Thanks, nothing unusual here.

	Rainer