Bruno Haible <bruno@clisp.org> writes:

> Hi David,
>
>> the default, distributed libintl library will not allow GCC to be built
>> with NLS enabled.
>
> The problem is this configure test from gettext.m4
>
>   checking for GNU gettext in libintl... no
>
> It should say
>
>   checking for GNU gettext in libintl... yes
>
> I reproduce it with simple hello-world package, outside GCC.
>
> It tests whether a program that uses gettext() can be linked with
>   -lintl -liconv
> But now, on AIX, it needs to test whether such a program can be linked with
>   -lintl -liconv -lpthread
>
>> Were you suggesting that --enable-threads=isoc would work now or that it
>> would require further changes for a future release?
>
> It requires a change, effectively to do as if HAVE_PTHREAD_API is undefined
> if --enable-threads=isoc was provided.
>
> I can prepare a new gettext release that has both issues fixed:
>   - gettext.m4 that fixes the configure test and sets the variable LIBINTL
>     to "-Lsome/libdir -lintl -liconv -lpthread",
>   - mbrtowc.o and setlocale*.o that use mtx_* locks instead of pthread_*
>     mutexes when requested.
>
> But you then need to make up your mind w.r.t. what I wrote in the earlier
> mail.
>
>   * GCC can pass --enable-threads=isoc, to avoid the libpthread dependency
>     on AIX ≥ 7.2.

Hmm, would that option work everywhere, though?  Or would we have to
wire up configury to detect which flag to use?  If so, what would it
look like.

>   * Or GCC can (continue to?) use the variable LIBINTL. This will work on

If you mean the one generated by gettext.m4/uninstalled-config.sh, it is
utilized today:

LIBS = @LIBS@ libcommon.a $(CPPLIB) $(LIBINTL) $(LIBICONV) $(LIBBACKTRACE) \
	$(LIBIBERTY) $(LIBDECNUMBER) $(HOST_LIBS)

(from gcc/Makefile.in)


>     AIX 7.1 as well but the programs will then be linked against libpthread.
>     One additional library.
>     $ ldd gcc
>     /opt/freeware/bin/gcc needs:
>          /usr/lib/libc.a(shr.o)
>          /opt/freeware/lib/libiconv.a(libiconv.so.2)
>          /usr/lib/libc.a(_shr.o)
>          /unix
>          /usr/lib/libcrypt.a(shr.o)
>          /opt/freeware/lib/libgcc_s.a(shr.o)
>     libpthread.a will be added to this list.
>
>     ibm-clang links against libpthread.a as well:
>     $ ldd /opt/IBM/openxlC/17.1.1/bin/.ibm-clang.orig
>     /opt/IBM/openxlC/17.1.1/bin/.ibm-clang.orig needs:
>          /usr/lib/libpthreads.a(shr_xpg5_64.o)
>          /usr/opt/zlibNX/lib/libz.a(libz.so.1)
>          /usr/lib/libcurses.a(shr42_64.o)
>          /usr/lib/libiconv.a(shr4_64.o)
>          /usr/lib/libc++.a(shr_64.o)
>          /usr/lib/libc++abi.a(libc++abi.so.1)
>          /usr/lib/libc.a(shr_64.o)
>          /usr/lib/libpthreads.a(_shr_xpg5_64.o)
>          /usr/lib/libc++.a(libc++.so.1)
>          /usr/lib/libunwind.a(libunwind.so.1)
>          /usr/lib/libc.a(_shr_64.o)
>          /unix
>          /usr/lib/libcrypt.a(shr_64.o)

David, I'll leave that decision up to you.

> Bruno


-- 
Arsen Arsenović