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Full Discussion: Linker errors linking to .a files on OS X
Top Forums Programming Linker errors linking to .a files on OS X Post 302928590 by Don Cragun on Saturday 13th of December 2014 03:23:07 AM
Old 12-13-2014
Did you follow the MacPorts directions for uninstalling MacPorts, or did you just "rm" it?

I don't have any experience with MacPorts, but glancing through the on-line documentation it seems that MacPorts may change the target architecture to the port you were working on. That would explain the ld diagnostic:
Code:
ld: warning: ignoring file func.a, file was built for archive which is not the architecture being linked (x86_64): func.a
Undefined symbols for architecture x86_64:
  "_func", referenced from:
      _main in main.o

but I'm afraid I don't know how to help you correct the problem.

One possibility is that MacPorts might have installed alternative versions of gcc or ar in a directory in your PATH before the standard locations for those utilities. Does type ar gcc ld indicate any directory other than /usr/bin for any of those utilities? If it is something else, try:
Code:
/usr/bin/gcc -c func.c main.c
/usr/bin/ar -src func.a func.o
/usr/bin/gcc -o test main.o func.a

This User Gave Thanks to Don Cragun For This Post:
MarshallBanana
 

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LEARN ABOUT SUNOS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The  following  default	shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh,
       /bin/tcsh,  /bin/zsh,  /sbin/jsh,  /sbin/sh,  /usr/bin/bash,  /usr/bin/csh,  /usr/bin/jsh,  /usr/bin/ksh,  /usr/bin/pfcsh,  /usr/bin/pfksh,
       /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list.

       Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)).

FILES

       /etc/shells	       lists shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.10							    4 Jun 2001								 shells(4)
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