Re: link error with gettext 0.18.1.1 on cygwin

[Bruno Haible]

Hi Eric,

Eric Blake wrote:
> I'm failing to build gettext out of the box on cygwin:
> ...
> Creating library file: .libs/libgettextlib.dll.a
> ./.libs/libcroco_rpl.a(libcroco_rpl_la-cr-sel-eng.o): In function
> `lang_pseudo_class_handler':
> /home/eblake/gettext-0.18.1.1/gettext-tools/gnulib-lib/libcroco/cr-sel-eng.c:144:
> undefined reference to `_xmlFree'

Hmm, I haven't seen this error, because I never had libxml2 preinstalled
when building gettext on Cygwin.

> Notice that /usr/lib/libxml2.dll.a is listed on the link line, and it
> occurs after ./.libs/libcroco_rpl.a, so the only thing I can think of is
> that libcroco/cr-sel-eng.c is missing a #include, or that cygwin's
> libxml2.dll.a is incomplete.  cr-sel-eng.h includes the lines:
> 
> #ifdef CROCO_HAVE_LIBXML2
>  #include <libxml/tree.h>
> #endif
> 
> I also see #define CROCO_HAVE_LIBXML2 1 in
> gnulib-lib/libcroco/libcroco-config.h.  So I can't figure out why xmlFree
> is not being properly declared, or what missing #include to add.

With the information that you gave, I cannot guess it either.

> Any suggestions on what to try next?

You can try configuring with --without-libxml2-prefix. Then the installed
libxml2 will not be used, leading to a bigger libgettextlib, but hopefully
no link error.

Bruno