FTBFS on natty: SASL LDAP check fails (and other DSO problems)

[Clint Byrum]

Binary package hint: php5

php5 fails to build from source on natty right now, needs several patches to build linking system to get it building.

checking for sasl_version in -lldap... no
configure: error: LDAP SASL check failed. Please check config.log for more information.
make: *** [configure-apache2-stamp] Error 1
dpkg-buildpackage: error: debian/rules build gave error exit status 2

ext/zip/lib/.libs/zip_dirent.o: In function `_zip_dirent_read':
/home/clint/pkg/php5/bzr/build-area/php5-5.3.3/ext/zip/lib/zip_dirent.c:478: warning: memset used with constant zero length parameter; this could be due to transposed parameters
/home/clint/pkg/php5/bzr/build-area/php5-5.3.3/ext/zip/lib/zip_dirent.c:478: warning: memset used with constant zero length parameter; this could be due to transposed parameters
/usr/bin/ld.bfd.real: ext/openssl/.libs/openssl.o: undefined reference to symbol 'X509_free@@OPENSSL_0.9.8'
/usr/bin/ld.bfd.real: note: 'X509_free@@OPENSSL_0.9.8' is defined in DSO /lib64/libcrypto.so.0.9.8 so try adding it to the linker command line
/lib64/libcrypto.so.0.9.8: could not read symbols: Invalid operation
collect2: ld returned 1 exit status

[Clint Byrum (clint-fewbar)]

Submitted upstream

http://bugs.php.net/bug.php?id=53339

[Matthias Klose (doko)]

the patch may be wrong.

the original problem is:

configure:56654: checking for sasl_version in -lldap
configure:56679: powerpc64-linux-gnu-gcc -o conftest -I/usr/include -g -O2 -O2 -Wall -fsigned-char -fno-strict-aliasing -g -fvisibility=hidden -I/usr/include -L/usr/lib -Wl,-Bsymbolic-functions -lldap -llber -lsasl2 conftest.c -lldap -lssl -ldb -lbz2 -lz -lpcre -lssl -lm -ldl -lnsl -lxml2 -lgssapi_krb5 -lkrb5 -lk5crypto -lcom_err -lxml2 -lldap -llber >&5
/tmp/ccN9qAWO.o: In function `main':
/home/doko/packages/php5-5.3.3/apache2-build/conftest.c:332: undefined reference to `sasl_version'
collect2: ld returned 1 exit status

here "-lldap -llber -lsasl2" are added *before* the object. There seems to be something wrong with the configure macro(s).

[Clint Byrum (clint-fewbar)]

Right, that was the original fail message. The problem is the ldap module's configuration checks for sasl_version *in libldap* but it is a function that should only be in libsasl2. Right after that, the extension adds sasl2, not ldap:

  PHP_CHECK_LIBRARY(ldap, sasl_version,
  [
    PHP_ADD_INCLUDE($LDAP_SASL_INCDIR)
    PHP_ADD_LIBRARY_WITH_PATH(sasl2, $LDAP_SASL_LIBDIR, LDAP_SHARED_LIBADD)
    AC_DEFINE(HAVE_LDAP_SASL, 1, [LDAP SASL support])
  ], [
    AC_MSG_ERROR([LDAP SASL check failed. Please check config.log for more information.])

Hence changing it to check against libsasl2... before adding.. libsasl2.