[Axl] Exarg / problems building Axl

[Francis Brosnan Blazquez]

> ¡Hola!

Hola Joel!

> I have two quick questions, and would be grateful for any help.
> 
> First, is there any documentation (anything online, or a README) on  
> the Axl dependency exarg?

Ops! The intention wasn't to release axl with a hard dependency to
exarg. I've just release a fix that removes such problem. axl-knife will
still use exarg, but inline integrated. Thanks for reporting Joel.

> Second, I can build Axl on Linux/x86, but not on Mac OS X (10.4.11,  
> both Xcode 2.2 and 2.5). On OS X, ld fails during make:
> 
> ...
> generating symbol list for `libaxl-ns.la'
> /usr/bin/nm -p  .libs/axl_ns_doc.o .libs/axl_ns_node.o  | sed -n -e  
> 's/^.*[    ]\([BCDEGRST][BCDEGRST]*\)[      ][      ]*_
> \([_A-Za-z][_A- 
> Za-z0-9]*\)$/\1 _\2 \2/p' | /usr/bin/sed 's/.* //' | sort | uniq  
>  > .libs/libaxl-ns.exp
> /usr/bin/grep -E -e "^(axl|__axl).*" ".libs/libaxl-ns.exp" > ".libs/ 
> libaxl-ns.expT"
> mv -f ".libs/libaxl-ns.expT" ".libs/libaxl-ns.exp"
> sed -e "s,#.*,," -e "s,^[ ]*,," -e "s,^\(..*\),_&," < .libs/libaxl- 
> ns.exp > .libs/libaxl-ns-symbols.expsym
> gcc -dynamiclib  -o .libs/libaxl-ns.0.0.0.dylib  .libs/ 
> axl_ns_doc.o .libs/axl_ns_node.o   -install_name  /usr/local/lib/ 
> libaxl-ns.0.dylib -compatibility_version 1 -current_version 1.0
> ld: Undefined symbols:
> _axl_cmp
> _axl_doc_get_root
> _axl_error_new
> _axl_free
> _axl_hash_equal_string
> _axl_hash_exists
> _axl_hash_free
> _axl_hash_get
> _axl_hash_insert
> _axl_hash_new_full
> _axl_hash_string
> _axl_log
> _axl_memcmp
> _axl_node_annotate_data_full
> _axl_node_annotate_get
> _axl_node_attr_cursor_first
> _axl_node_attr_cursor_free
> _axl_node_attr_cursor_get_key
> _axl_node_attr_cursor_get_value
> _axl_node_attr_cursor_has_item
> _axl_node_attr_cursor_new
> _axl_node_attr_cursor_next
> _axl_node_get_first_child
> _axl_node_get_name
> _axl_node_get_next
> _axl_node_get_parent
> _axl_node_has_attributes
> _axl_node_get_previous
> /usr/bin/libtool: internal link edit command failed
> make[2]: *** [libaxl-ns.la] Error 1
> make[1]: *** [all-recursive] Error 1
> make: *** [all] Error 2
> 
> Any ideas? 

:-? At first no idea. 

I would suggest to do the following:

1) Try to update your autoconf installation, especially the libtool
command. It is likely the problem is located here because the symbols
reported as missing do not exist (they are available by removing the
preceding "_").

2) Try to modify src/Makefile.am and ns/Makefile.am files to make the
following line:

libaxl_la_LDFLAGS = -no-undefined -export-symbols-regex '^(axl|__axl).*'

Making the regular expression to look: '^(axl|_axl|__axl).*'

Let us to know if this works.

> I'm planning to use Vortex, and not get too hot and heavy  
> with Axl. 

Nice.

> Thanks for any help,

Cheers!

> joel
-- 
Francis Brosnan Blazquez <francis at aspl.es>
Advanced Software Production Line, S.L.