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bug#40205: closed (28.0.50; 32bit or LTO movemail build fails on macOS)


From: GNU bug Tracking System
Subject: bug#40205: closed (28.0.50; 32bit or LTO movemail build fails on macOS)
Date: Wed, 25 Mar 2020 20:44:01 +0000

Your message dated Wed, 25 Mar 2020 13:43:01 -0700
with message-id <address@hidden>
and subject line Re: 32bit or LTO movemail build fails on macOS
has caused the debbugs.gnu.org bug report #40205,
regarding 28.0.50; 32bit or LTO movemail build fails on macOS
to be marked as done.

(If you believe you have received this mail in error, please contact
address@hidden.)


-- 
40205: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=40205
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 28.0.50; 32bit or LTO movemail build fails on macOS Date: Tue, 24 Mar 2020 12:14:11 +0900 User-agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM/1.14.9 (Goj┼Ź) APEL/10.8 EasyPG/1.0.0 Emacs/26 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO)
On macOS, movemail cannot be built with CC='cc -arch i386':

    CCLD     movemail
  Undefined symbols for architecture i386:
    "_rpl_getopt$UNIX2003", referenced from:
        _main in movemail-1f1ea0.o
  ld: symbol(s) not found for architecture i386
  clang: error: linker command failed with exit code 1 (use -v to see 
invocation)
  make[1]: *** [movemail] Error 1
  make: *** [lib-src] Error 2

This is due to the following part in the system getopt.h:

  #ifndef _GETOPT
  #define       _GETOPT
  int    getopt(int, char * const [], const char *) __DARWIN_ALIAS(getopt);

  extern char *optarg;                  /* getopt(3) external variables */
  extern int optind, opterr, optopt;
  #endif

which is expanded to:

  int rpl_getopt(int, char * const [], const char *) __asm("_" "rpl_getopt" 
"$UNIX2003");

  extern char *rpl_optarg;
  extern int rpl_optind, rpl_opterr, rpl_optopt;

I think the Gnulib getopt does not expect the __asm line above.

64-bit LTO build with CC='cc -flto' fails, too.

    CCLD     movemail
  ld: reference to symbol (which has not been assigned an address) _rpl_getopt 
in '_main' from /var/folders/69/m7h39yv92g70qy7p3xdlghdm0000gn/T/cc-907a5d.o 
for architecture x86_64
  clang: error: linker command failed with exit code 1 (use -v to see 
invocation)
  make[1]: *** [movemail] Error 1
  make: *** [lib-src] Error 2

                                     YAMAMOTO Mitsuharu
                                address@hidden



--- End Message ---
--- Begin Message --- Subject: Re: 32bit or LTO movemail build fails on macOS Date: Wed, 25 Mar 2020 13:43:01 -0700 User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1
On 3/24/20 9:07 PM, YAMAMOTO Mitsuharu wrote:

Yes, this works for both -arch i386 and -flto cases.

Thanks for checking. I installed the patch into Gnulib and propagated the fix into Emacs master, and am marking this Emacs bug as done.


--- End Message ---

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