bug#24460: a workaround for Emacs-25.1.1 configure error on Mac 10.11.6 :AppKit.h usability no bur presence yes with gcc

bug#24460: a workaround for Emacs-25.1.1 configure error on Mac 10.11.6 :AppKit.h usability no bur presence yes with gcc

[fu7mu4]

[-- Attachment #1: Type: text/plain, Size: 1705 bytes --]

Hello emacs developers.
I'm fu7m4, one of Emacs user.

A configure Warning asks me to report this to all.

  ## Report this to bug-gnu-emacs@gnu.org ##

This warning/error's workaround may be wrong.
But my emacs 25.1 seems to be work well.

Thanks.

# Short Description

installing emacs 25.1 on Mac from source (nextstep build), the configure
script with "--without-x" argument says that AppKit.h is found but not
unusable ;

./configure --without-x

....snip....

checking AppKit/AppKit.h usability... no
checking AppKit/AppKit.h presence... yes
configure: WARNING: AppKit/AppKit.h: present but cannot be compiled
configure: WARNING: AppKit/AppKit.h:     check for missing prerequisite
headers?
configure: WARNING: AppKit/AppKit.h: see the Autoconf documentation
configure: WARNING: AppKit/AppKit.h:     section "Present But Cannot Be
Compiled"
configure: WARNING: AppKit/AppKit.h: proceeding with the compiler's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to bug-gnu-emacs@gnu.org ##
configure: WARNING:     ## ------------------------------------ ##
checking for AppKit/AppKit.h... no
configure: error: The include files (AppKit/AppKit.h etc) that
are required for a Nextstep build are missing or cannot be compiled.
Either fix this, or re-configure with the option '--without-ns'.

#Environment

Mac :10.11.6
default compiler: gcc (MacPorts gcc5 5.4.0_0) 5.4.0

#Source
ftp mirror's source

#Steps for reproduce

curl -OL http://ftp.jaist.ac.jp/pub/GNU/emacs/emacs-25.1.tar.xz
tar Jxvf emacs-25.1.tar.xz
cd emacs-25.1
./configure --without-x

#Workaround

use clang instead of gcc, like:

CC=/usr/bin/clang ./configure --without-x

[-- Attachment #2: Type: text/html, Size: 2551 bytes --]

bug#24460: a workaround for Emacs-25.1.1 configure error on Mac 10.11.6 :AppKit.h usability no bur presence yes with gcc

[Alan Third]

On Mon, Sep 19, 2016 at 12:40:31AM +0900, fu7mu4 wrote:
> Hello emacs developers.
> I'm fu7m4, one of Emacs user.
<snip>
> installing emacs 25.1 on Mac from source (nextstep build), the configure
> script with "--without-x" argument says that AppKit.h is found but not
> unusable ;
> 
> ./configure --without-x
> 
> ....snip....
> 
> checking AppKit/AppKit.h usability... no
> checking AppKit/AppKit.h presence... yes
> configure: WARNING: AppKit/AppKit.h: present but cannot be compiled
> configure: WARNING: AppKit/AppKit.h:     check for missing prerequisite
> headers?
> configure: WARNING: AppKit/AppKit.h: see the Autoconf documentation
> configure: WARNING: AppKit/AppKit.h:     section "Present But Cannot Be
> Compiled"
> configure: WARNING: AppKit/AppKit.h: proceeding with the compiler's result
> configure: WARNING:     ## ------------------------------------ ##
> configure: WARNING:     ## Report this to bug-gnu-emacs@gnu.org ##
> configure: WARNING:     ## ------------------------------------ ##
> checking for AppKit/AppKit.h... no
> configure: error: The include files (AppKit/AppKit.h etc) that
> are required for a Nextstep build are missing or cannot be compiled.
> Either fix this, or re-configure with the option '--without-ns'.

I have to admit I’ve never tried building Emacs on macOS using gcc, I
always just use clang. I have built the NS port against GNUStep using
gcc, though.

Searching on Google doesn’t give any real clues beyond perhaps
reinstalling XCode.
-- 
Alan Third

bug#24460: a workaround for Emacs-25.1.1 configure error on Mac 10.11.6 :AppKit.h usability no bur presence yes with gcc

[Paul Eggert]

In the failed 'configure', what does 'config.log' say afterwards? Can you attach 
a gzipped copy of that file?

bug#24460: a workaround for Emacs-25.1.1 configure error on Mac 10.11.6 :AppKit.h usability no bur presence yes with gcc

[Lambda Coder]

[-- Attachment #1.1: Type: text/plain, Size: 545 bytes --]

On Thu, 22 Sep 2016 02:11:44 -0700 Paul Eggert wrote:

>In the failed 'configure', what does 'config.log' say afterwards? Can you
attach a gzipped copy of that file?

Since I have not seen config.log, I'm attaching a copy of the same error I
got. I'm using Sierra with Xcode v7.3 compiling against the latest trunk.

If I use ./configure --without-x, then I get another set of errors about
missing jpg, png, and such libraries. I know I have them all. I can compile
other apps. I even have the AppKit.h file.

Thanks for helping,

Lambda Coder.

[-- Attachment #1.2: Type: text/html, Size: 1125 bytes --]

[-- Attachment #2: config.log.gz --]
[-- Type: application/x-gzip, Size: 16451 bytes --]

bug#24460: a workaround for Emacs-25.1.1 configure error on Mac 10.11.6 :AppKit.h usability no bur presence yes with gcc

[Lambda Coder]

[-- Attachment #1: Type: text/plain, Size: 786 bytes --]

Update Xcode to version 8.0 on macOS Sierra (10.12) to fix this error.
Software update will not offer Xcode update to 8.0 from Xcode 7.3. It has
be done specifically from the app store. Hope this helps.

configure: WARNING: AppKit/AppKit.h: present but cannot be compiled

configure: WARNING: AppKit/AppKit.h:     check for missing prerequisite
headers?

configure: WARNING: AppKit/AppKit.h: see the Autoconf documentation

configure: WARNING: AppKit/AppKit.h:     section "Present But Cannot Be
Compiled"

configure: WARNING: AppKit/AppKit.h: proceeding with the compiler's result

configure: WARNING:     ## ------------------------------------ ##

configure: WARNING:     ## Report this to bug-gnu-emacs@gnu.org ##

configure: WARNING:     ## ------------------------------------ ##

[-- Attachment #2: Type: text/html, Size: 2515 bytes --]