php5 can't seem to use libxml2

[jhi]

$ sudo port -v install ph5p
...
checking for atoll... yes
checking for strftime... (cached) yes
checking which regex library to use... php
checking whether to enable LIBXML support... yes
checking libxml2 install dir... /opt/local
checking for xml2-config path... /opt/local/bin/xml2-config
checking whether libxml build works... no
configure: error: build test failed.  Please check the config.log for details.

Warning: the following items did not execute (for php5): org.macports.activate org.macports.configure org.macports.build org.macports.destroot org.macports.install
Error: Status 1 encountered during processing.

The libxml is happily installed, I checked with "sudo port install libxml", which ends up not installing it because the latest libxml already installed. If I look at the config.log (/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_lang_php5/work/php-5.3.0/config.log), I see at the end:

...
configure:20354: /usr/bin/gcc-4.0 -o conftest -O2 -gstabs -fvisibility=hidden -I/opt/local/include -no-cpp-precomp -L/opt/local/lib -Wl,-rpath,/opt/local/lib -L/opt/local/lib conftest.c 
          
         -lm  -lxml2 -lz -liconv -lm 1>&5
configure: failed program was:
#line 20343 "configure"
#include "confdefs.h"

    
    char xmlInitParser();
    int main() {
      xmlInitParser();
      return 0;
    }

Which will not work since the compile command is missing -lxml. If I create conftest.c with the above content, and copy the confdefs.h from the directory of config.log, AND add the -lxml, the test compiles and links. If I leave out the -lxml, I get this error:

Undefined symbols:
  "_xmlInitParser", referenced from:
      _main in ccGooSIo.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

So the configure test is missing -lxml?

[blb@…]

Actually not using -lxml is correct, it should be using -lxml2 (and appears to be doing so). Odd that it isn't finding that symbol, what is the output from running the following?

nm /opt/local/lib/libxml2.2.dylib |grep xmlInitParser

[jhi]

$ nm /opt/local/lib/libxml2.2.dylib |grep xmlInitParser
0000c4f0 T _xmlInitParser
000081b0 T _xmlInitParserCtxt
$ 

[jhi]

Replying to blb@…:

Actually not using -lxml is correct, it should be using -lxml2 (and appears to be doing so). Odd that it isn't finding that symbol, what is the output from running the following?

It is not using -lxml2, I think. As I said, from the config.log:

configure:20354: /usr/bin/gcc-4.0 -o conftest -O2 -gstabs -fvisibility=hidden -I/opt/local/include -no-cpp-precomp -L/opt/local/lib -Wl,-rpath,/opt/local/lib -L/opt/local/lib conftest.c

nm /opt/local/lib/libxml2.2.dylib |grep xmlInitParser

[jhi]

The gzipped /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_lang_php5/work/php-5.3.0/config.log

[ryandesign (Ryan Carsten Schmidt)]

Replying to jhi@…:

It is not using -lxml2, I think. As I said, from the config.log:

configure:20354: /usr/bin/gcc-4.0 -o conftest -O2 -gstabs -fvisibility=hidden -I/opt/local/include -no-cpp-precomp -L/opt/local/lib -Wl,-rpath,/opt/local/lib -L/opt/local/lib conftest.c

The command continues on the next line with "-lm -lxml2 -lz -liconv -lm".

php5 builds fine for me on my Mac OS X 10.5.7 Intel system so something must be different about yours.

Running blb's nm command on my system I get:

         U _xmlInitParser
000091cd T _xmlInitParserCtxt
00020379 T _xmlInitParser
         U _xmlInitParser
         U _xmlInitParser
         U _xmlInitParser
         U _xmlInitParser

Since that's different than what you got, could you please try rebuilding your libxml2, after you sync and update outdated ports to make sure you have the latest software?

sudo port sync
port outdated
sudo port upgrade outdated

If that did not already upgrade libxml2, then force it like this:

sudo port -nf upgrade libxml2

[blb@…]

FWIW, mine is similar to jhi@:

00022550 T _xmlInitParser
00009b30 T _xmlInitParserCtxt

Ryan, not sure why you're seeing the undefined references as well...though PHP5 5.3.0 works fine here too.

One other thing, make sure there are no libxml2* files in /usr/local/lib.

[jhi]

Now it worked, thanks!

The libxml2 situation was:

libxml2 2.6.31_0 < 2.7.3_0

The outdated updating didn't upgrade the libxml2, but the forced updating did. And after that php5 configured, built, and installed fine.

No /usr/local/lib/libxml* files.

[ryandesign (Ryan Carsten Schmidt)]

I'm glad you got it working by upgrading to the current libxml2, though I'm distressed that MacPorts did not upgrade you to the latest version without forcing.