[RFC] Build on OSX

[RFC] Build on OSX

[Masaki Muranaka]

Hello,

I've trying to build cross-gdb on OSX host from CVS head.
And the build was failed with following message:

/usr/bin/ld: warning multiple definitions of symbol _locale_charset
./../intl/libintl.a(localcharset.o) definition of _locale_charset in  
section (__TEXT,__text)
/usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libiconv.dylib 
(localcharset.o) definition of _locale_charset


It is well known issue. OSX (maybe also Darwin) hosts
need to link 'resolv' library beforge libintl.a.

Here is a brute-forced patch. But I don't think this is
the good solution.

Any comments appreciated.

- - - - - - -
Index: configure.ac
===================================================================
RCS file: /cvs/src/src/gdb/configure.ac,v
retrieving revision 1.42
diff -u -p -r1.42 configure.ac
--- configure.ac        2 Feb 2007 22:54:09 -0000       1.42
+++ configure.ac        12 Feb 2007 08:55:46 -0000
@@ -1591,6 +1591,13 @@ AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "ISO
AM_ICONV
+# Darwin (MacOSX Tiger) needs -lresolv before libintl.a.
+if test x"$LIBINTL" != x; then
+  case ${host} in
+    *darwin*) LIBINTL="-lresolv $LIBINTL";
+  esac
+fi
+
AC_OUTPUT(Makefile .gdbinit:gdbinit.in,
[
dnl Autoconf doesn't provide a mechanism for modifying definitions

--
Masaki Muranaka
Monami software

Re: [RFC] Build on OSX

[Daniel Jacobowitz]

On Mon, Feb 12, 2007 at 06:19:26PM +0900, Masaki Muranaka wrote:
> Hello,
> 
> I've trying to build cross-gdb on OSX host from CVS head.
> And the build was failed with following message:
> 
> /usr/bin/ld: warning multiple definitions of symbol _locale_charset
> ./../intl/libintl.a(localcharset.o) definition of _locale_charset in  
> section (__TEXT,__text)
> /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libiconv.dylib 
> (localcharset.o) definition of _locale_charset
> 
> 
> It is well known issue. OSX (maybe also Darwin) hosts
> need to link 'resolv' library beforge libintl.a.
> 
> Here is a brute-forced patch. But I don't think this is
> the good solution.

I know that people built GCC on this platform all the time.  GCC
doesn't explicitly do this, so why does it work for GCC but not for
GDB?  I would recommend building GCC and trying to figure out what's
different.

(You can build just a C compiler with --enable-languages=c, that's
much quicker.)

-- 
Daniel Jacobowitz
CodeSourcery

Re: [RFC] Build on OSX

[Masaki Muranaka]

On 2007/02/28, at 1:56, Daniel Jacobowitz wrote:
>> /usr/bin/ld: warning multiple definitions of symbol _locale_charset
>> ./../intl/libintl.a(localcharset.o) definition of _locale_charset in
>> section (__TEXT,__text)
>> /usr/lib/gcc/powerpc-apple-darwin8/4.0.1/../../../libiconv.dylib
>> (localcharset.o) definition of _locale_charset
>>
>>
>> It is well known issue. OSX (maybe also Darwin) hosts
>> need to link 'resolv' library beforge libintl.a.
>>
>> Here is a brute-forced patch. But I don't think this is
>> the good solution.
>
> I know that people built GCC on this platform all the time.  GCC
> doesn't explicitly do this, so why does it work for GCC but not for
> GDB?  I would recommend building GCC and trying to figure out what's
> different.

I have an mistake. In fact, there is warning already shown, but
binaries (gdb, gdbtui) are generated successfully.

> (You can build just a C compiler with --enable-languages=c, that's
> much quicker.)

I can't build GCC immediately because I don't have darwin version of
GMP/MPFR. So I'm not sure, but it is posible that GCC developers
regard this issue as harmless.

--
Masaki Muranaka
Monami software