(darwin-legacy pretest) about 5% slow-down of \edef in etex

[jfbu]

Hi Mojca again

> 
> first with :
> 
> $ ../configure --disable-all-pkgs --enable-pdftex -C >&outc
> 
> later with
> 
> $ ../configure --disable-all-pkgs --enable-pdftex -C CFLAGS=-Os CXXFLAGS=-Os >&outc
> 
> but do I get that right?

Probably not I did it again using this

$ rm -fr Work
$ cd Work
$ ../configure --disable-all-pkgs --enable-pdftex -C CFLAGS="-O2" CXXFLAGS="-O2" >&outc

(I think I had forgotten next step last time:)
$ make
$ cd texk/web2c
$ make pdftex

And now I get

$ time etex testspeedbinaries
This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020) (preloaded format=etex)
 restricted \write18 enabled.
entering extended mode
(./testspeedbinaries.tex . . . . . . . . . . )
No pages of output.
Transcript written on testspeedbinaries.log.

real	0m1.522s
user	0m1.505s
sys	0m0.015s

To be compared to

1.6s with TeXLive 2019
1.7s with pretest 2020

and 

1.45s with self-build binaries from TeXLive 2018
as reported in previous message.

Best

Jean-François