bug#36280: 26.2.90; 'emacs -Q' receives SIGSEGV, Segmentation fault

[Robert Pluim]

>>>>> On Thu, 20 Jun 2019 23:07:05 +1000, VanL <van@scratch.space> said:

    >> On 20 Jun 2019, at 21:06, Robert Pluim <rpluim@gmail.com> wrote:
    >> 
    >>>>>>> On Thu, 20 Jun 2019 19:28:35 +1000, VanL <van@scratch.space> said:
    >> 
    >>>> On 20 Jun 2019, at 00:32, Robert Pluim <rpluim@gmail.com> wrote:
    >>>> 
    >>>> Strange. Iʼve just built from the tarball both in-tree and out-of tree
    >>>> without any issues (but Iʼm not targeting X11/GTK), so I donʼt
    >>>> understand why building from git makes any difference for you.
    >> 
    VanL> Maybe, your macOS has the 'macuvs.h' in the environment for the 
out-of tree case.
    >> 
    >> Itʼs part of the emacs source code, so thatʼs highly unlikely.

    VanL> There was a line about a missing 'macuvs.h' file and switching from 
out to in-tree build located it for me.

    VanL> I take out-of tree to mean the downloaded distribution without any 
git stuff that was announced on gmane.

Say your emacs source code is in 'emacs-26'.

An in-tree build is: 
cd emacs-26; configure; make

An out-of tree build is 

mkdir emacs-26-build; cd emacs-26-build; ../emacs-26/configure; make

Both should work, especially from release tarballs.

Robert