> From: [email protected]
> [mailto:[email protected]]
> Sent: Tuesday, March 07, 2017 10:49
> To: Michael Wojcik
> Subject: Re: undefined symbol fabs in file test/ct_test.o in openssl 1.1.0e on
> solaris
For threads that originated on openssl-users, please send messages to the list,
rather than to me directly.
> <quote author='Michael Wojcik'>
>
>> For the record, we've always just changed the Solaris configuration we use
>> in Configure to add -lm.
>
> I am not an experienced C developer so please can you tell me where in the
> Configure file I have to add -lm.
This has nothing to do with C development. The OpenSSL Configure process, while
conceptually related to that used by some other packages, is an OpenSSL
invention. And the use of -lm is an artifact of the toolchain (common to many
toolchains for UNIX-like systems); it too has nothing to do with the C language.
Also, I've just looked at our Configure and apparently I misremembered; we do
not add -lm for the Solaris builds. (We make a number of other changes for that
platform, though.) It seems it's not needed for the version of OpenSSL we're
currently building.
Where you would add -lm depends on what configuration you're using, which in
turn depends on which system architecture and toolchain you're using. It also
may depend on what version of OpenSSL you're building. I don't have that
information, obviously.
In OpensSSL 1.0.2j's Configure (and generally for all the 1.0.2 releases, I
believe), all the Solaris configure entries have -ldl in their library list. So
you can search Configure for "solaris (with the double-quote) at the beginning
of a line, then add -lm (with a space) after -ldl on each such line. For
example, in vi:
:%s/^"solaris.* -ldl/& -lm
Whether this also applies to OpenSSL 1.1.0 or whatever you're building, I can't
say.
Michael Wojcik
Distinguished Engineer, Micro Focus
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