Bug ID: 85413
           Summary: "./configure --with-build-config=bootstrap-lto " !=
                    "BOOT_CFLAGS +=-flto "
           Product: gcc
           Version: 7.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot
          Reporter: dilyan.palauzov at aegee dot org
  Target Milestone: ---;a=blob;f=gcc/doc/install.texi;h=64ad2445a335f270200e359812bc9d2213bd2405;hb=HEAD#l2457

./configure --with-build-config=bootstrap-lto is the same as adding -flto to
BOOT_CFLAGS, but providing that config/ contains more code than
just adding -flto, this seems not to be correct.  Moreover the text in
gcc/doc/instal.texi concerning the equivalence originates from 2010, but
config/ was last modified in 2014.  In 2010 bootstrap-lto.m4
indeed only added -flto, not it appends also =jobserver.

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