GNU bug report logs - #14923
24.3.50; Emacs compilation broken on FreeBSD SPARC/ARM platforms

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From: ashish.is <at> lostca.se (Ashish SHUKLA)
To: 14923 <at> debbugs.gnu.org
Subject: bug#14923: 24.3.50; Emacs compilation broken on FreeBSD SPARC/ARM platforms
Date: Sun, 21 Jul 2013 18:24:32 +0530

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Hi,

Following compiler error is observed on SPARC platform when compiling Emacs 24.3:

#v+
cc -std=gnu99 -c -I/usr/local/include -Demacs  -I. -I/home/ashish/emacs-nox11/work/emacs-24.3/src -I../lib -I/home/ashish/emacs-nox11/work/emacs-24.3/src/../lib               -MMD -MF deps/sysdep.d -MP     -O2 -pipe -fno-strict-aliasing sysdep.c
In file included from lisp.h:25,
                 from sysdep.c:39:
../lib/stdalign.h:51:1: warning: "_Alignof" redefined
In file included from /usr/include/string.h:36,
                 from ./conf_post.h:189,
                 from ./config.h:1671,
                 from sysdep.c:20:
/usr/include/sys/cdefs.h:240:1: warning: this is the location of the previous definition
In file included from lisp.h:25,
                 from sysdep.c:39:
../lib/stdalign.h:82:1: warning: "_Alignas" redefined
In file included from /usr/include/string.h:36,
                 from ./conf_post.h:189,
                 from ./config.h:1671,
                 from sysdep.c:20:
/usr/include/sys/cdefs.h:239:1: warning: this is the location of the previous definition
In file included from sysdep.c:89:
frame.h:86: error: redefinition of 'struct frame'
sysdep.c: In function 'list_system_processes':
sysdep.c:2684: warning: comparison is always true due to limited range of data type
sysdep.c:2684: warning: comparison is always true due to limited range of data type
sysdep.c: In function 'system_process_attributes':
sysdep.c:3264: warning: comparison is always true due to limited range of data type
sysdep.c:3264: warning: comparison is always true due to limited range of data type
sysdep.c:3272: warning: comparison is always true due to limited range of data type
sysdep.c:3272: warning: comparison is always true due to limited range of data type
sysdep.c:3312: warning: comparison is always true due to limited range of data type
sysdep.c:3312: warning: comparison is always true due to limited range of data type
sysdep.c:3313: warning: comparison is always true due to limited range of data type
sysdep.c:3313: warning: comparison is always true due to limited range of data type
sysdep.c:3314: warning: comparison is always true due to limited range of data type
sysdep.c:3314: warning: comparison is always true due to limited range of data type
sysdep.c:3322: warning: comparison is always true due to limited range of data type
sysdep.c:3322: warning: comparison is always true due to limited range of data type
sysdep.c:3346: warning: comparison is always true due to limited range of data type
sysdep.c:3346: warning: comparison is always true due to limited range of data type
gmake[1]: *** [sysdep.o] Error 1
#v-

This happens because Emacs' and FreeBSD's system header files define a type
`struct frame` which causes conflict. The attached diff file fixes this issue
by renaming the FreeBSD's type before it gets defined.

Following is the output of `uname -a`:

#v+
FreeBSD magnus 9.1-STABLE FreeBSD 9.1-STABLE #4 r252102: Sun Jun 23 10:25:50 EDT 2013     root <at> magnus:/usr/obj/usr/src/sys/GENERIC  sparc64
=v-


Thanks
-- 
Ashish SHUKLA

“Censorship is telling a man he can't have a steak just because a baby can't
chew it.” (patcito, identi.ca #62762642)

Sent from my Emacs

[patch-src_sysdep.c (text/plain, attachment)]

[signature.asc (application/pgp-signature, inline)]

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