[Bug analyzer/102233] LTO with -fanalyzer on a smallish binary causes very very long compile times

[rjones at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102233

--- Comment #5 from Richard W.M. Jones <rjones at redhat dot com> ---
(In reply to David Malcolm from comment #4)
> (In reply to Richard W.M. Jones from comment #2)
> > I think since this seems to be LTO-related, you probably do need
> > to use LTO CFLAGS in the initial ./configure step.  My actual CFLAGS
> > were:
> > 
> > export CFLAGS="$(rpm --eval '%{optflags}')"
> > export CXXFLAGS="$(rpm --eval '%{optflags}')"
> > export LDFLAGS="$(rpm --eval '%{__global_ldflags}')"
> 
> For reference, what were the flags, specifically?  Thanks.

$ echo $CFLAGS 
-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe
-Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection

$ echo $CXXFLAGS 
-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe
-Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
-specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
-fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection

$ echo $LDFLAGS 
-Wl,-z,relro -Wl,--as-needed -Wl,-z,now
-specs=/usr/lib/rpm/redhat/redhat-hardened-ld