On 11/4/20 3:57 PM, Jakub Jelinek wrote:
On Wed, Nov 04, 2020 at 03:51:40PM -0500, Neal Gompa wrote:
Well, gcc really should have either weak or strong dependency on make too
given that -flto is now used everywhere.
The goal of this change seems to include removal of Make as a
dependency for the LTO wrapper used by GCC.
That is definitely not something that really happened in GCC, the only
change that has been done is to make sure that gcc -flto doesn't fail
because of missing make, but missing make will just mean that the
compilation will be significantly slower.
My understanding was that the performance of gcc -flto when using
something other than make (e.g. ninja) to build was the same whether or
not you have make installed[1]. Is this correct?
I thought you had to be using make to get the parallelization benefits
of -flto=auto.
-Tom
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97524#c7
Jakub
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