GNU bug report logs - #17294
Bug - nm_test_func check is confused with -flto

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Martin Liška <mliska <at> suse.cz>
To: bug-libtool <at> gnu.org
Subject: Bug - nm_test_func check is confused with -flto
Date: Fri, 18 Apr 2014 15:01:51 +0200

Hello,
    starting with GCC 4.9.0, compiler will use just slim objects files 
during LTO compilation. That means, no assembly output is put to object 
files. I noticed that libtool uses nm tools to extract symbol from 
object file: http://pastebin.com/RF1VubdR. Would it be possible to add 
-fno-lto for this check?

I think there should be added '-fno-lto' at line 14:
  (eval $ac_compile -fno-lto) 2>&5

What do you think about that?

Thank you,
Martin

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