On Sun, 5 May 2013, Schrober wrote:
Hi,
I wanted to use link-time optimization (LTO/-flto) of GCC with libtool. I
thought I only have to add "-flto" to CFLAGS and LDFLAGS and then I am
finished. But it seems that this is not enough because some CFLAGS aren't
copied to the linker command (e.g. -g). This results in a binary with missing
information. Is there a differrent "correct" way to use libtool (through
automake) with LTO?
Have you tried configuring with something like 'CC=gcc -flto -g'?
While being evil, this seems likely to work if CC is used as the
linker.
I would agree that -flto is often not easy to use. While libtool does
not block use of -flto, I don't think it provides any special support
for it.
Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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