jpollock@graceland:/opt/local/src/php-5.0.3$ make
gcc  -Iext/sybase/ -I/opt/local/src/php-5.0.3/ext/sybase/ -DPHP_ATOM_INC -I/opt/local/src/php-5.0.3/include -I/opt/local/src/php-5.0.3/main -I/opt/local/src/php-5.0.3 -I/opt/local/src/php-5.0.3/Zend -I/usr/local/gnome2/include/libxml2 -I/netopt/Sybase/clients/current/include  -I/opt/local/src/php-5.0.3/TSRM  -g -O2  -c /opt/local/src/php-5.0.3/ext/sybase/php_sybase_db.c -o ext/sybase/php_sybase_db.o  && echo > ext/sybase/php_sybase_db.lo
/opt/local/src/php-5.0.3/ext/sybase/php_sybase_db.c: In function `zif_sybase_fetch_object':
/opt/local/src/php-5.0.3/ext/sybase/php_sybase_db.c:1112: error: invalid lvalue in assignment
/opt/local/src/php-5.0.3/ext/sybase/php_sybase_db.c:1113: error: invalid lvalue in assignment
make: *** [ext/sybase/php_sybase_db.lo] Error 1
jpollock@graceland:/opt/local/src/php-5.0.3$

A traceback of the nested macros:

jpollock@graceland:/opt/local/src/php-5.0.3$ grep -ri Z_OBJPROP_P . | grep define
./ext/soap/soap.c:#define FIND_SDL_PROPERTY(ss,tmp) zend_hash_find(Z_OBJPROP_P(ss), "sdl", sizeof("sdl"), (void **)&tmp)
./Zend/zend_operators.h:#define Z_OBJPROP_P(zval_p)             Z_OBJPROP(*zval_p)
./Zend/zend_operators.h:#define Z_OBJPROP_PP(zval_pp)   Z_OBJPROP(**zval_pp)
jpollock@graceland:/opt/local/src/php-5.0.3$ grep -ri Z_OBJPROP\( . | grep define
./Zend/zend_operators.h:#define Z_OBJPROP(zval)                 Z_OBJ_HT((zval))->get_properties(&(zval) TSRMLS_CC)
./Zend/zend_operators.h:#define Z_OBJPROP_P(zval_p)             Z_OBJPROP(*zval_p)
./Zend/zend_operators.h:#define Z_OBJPROP_PP(zval_pp)   Z_OBJPROP(**zval_pp)
jpollock@graceland:/opt/local/src/php-5.0.3$ grep -ri Z_OBJ_HT\( . | grep define
./Zend/zend_operators.h:#define Z_OBJ_HT(zval)                  (zval).value.obj.handlers
./Zend/zend_operators.h:#define Z_OBJPROP(zval)                 Z_OBJ_HT((zval))->get_properties(&(zval) TSRMLS_CC)
./Zend/zend_operators.h:#define Z_OBJ_HANDLER(zval, hf) Z_OBJ_HT((zval))->hf
./Zend/zend_operators.h:#define Z_OBJ_HT_P(zval_p)      Z_OBJ_HT(*zval_p)
./Zend/zend_operators.h:#define Z_OBJ_HT_PP(zval_p)     Z_OBJ_HT(**zval_p)
./Zend/zend_object_handlers.h:#define IS_ZEND_STD_OBJECT(z)  ((z).type == IS_OBJECT && (Z_OBJ_HT((z))->get_class_entry != NULL))
./Zend/zend_object_handlers.h:#define HAS_CLASS_ENTRY(z) (Z_OBJ_HT(z)->get_class_entry != NULL)
jpollock@graceland:/opt/local/src/php-5.0.3$

This alswo occurs with PHP 5.0.3 on Fedora Core 3 with Sybase 11.1.1 and 12.5.

SOLUTION!

In ext/sybase/php_sybase_db.c around line 1112 change the lines:

PHP_FUNCTION(sybase_fetch_object)
{
  php_sybase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU);
  if (Z_TYPE_P(return_value)==IS_ARRAY) {
    Z_TYPE_P(return_value)=IS_OBJECT;
    Z_OBJPROP_P(return_value) = Z_ARRVAL_P(return_value);
    Z_OBJCE_P(return_value) = ZEND_STANDARD_CLASS_DEF_PTR;
  }
}

to:

PHP_FUNCTION(sybase_fetch_object)
{
  php_sybase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU);
  if (Z_TYPE_P(return_value)==IS_ARRAY) {
    object_and_properties_init(
      return_value,
      ZEND_STANDARD_CLASS_DEF_PTR,
      Z_ARRVAL_P(return_value)
    );
  }
}

I've tested this on Fedora Core 3 and Solaris 8. Both with gcc 3.4.2. Works great.

This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.