Enable use of libtool 1.5: always build all objects using the libtool
wrapper script, don't try and build some directly.

--- php-4.3.2/acinclude.m4.libtool15
+++ php-4.3.2/acinclude.m4
@@ -821,12 +821,12 @@
 dnl
 AC_DEFUN([PHP_BUILD_PROGRAM],[
   OVERALL_TARGET=[]ifelse($1,,php,$1)
-  php_c_pre='$(CC)'
-  php_c_meta='$(COMMON_FLAGS) $(CFLAGS_CLEAN) $(EXTRA_CFLAGS)'
-  php_c_post=' && echo > $[@]'
-  php_cxx_pre='$(CXX)'
-  php_cxx_meta='$(COMMON_FLAGS) $(CXXFLAGS_CLEAN) $(EXTRA_CXXFLAGS)'
-  php_cxx_post=' && echo > $[@]'
+  php_c_pre='$(LIBTOOL) --mode=compile $(CC)'
+  php_c_meta='$(COMMON_FLAGS) $(CFLAGS_CLEAN) $(EXTRA_CFLAGS) -prefer-non-pic'
+  php_c_post=
+  php_cxx_pre='$(LIBTOOL) --mode=compile $(CXX)'
+  php_cxx_meta='$(COMMON_FLAGS) $(CXXFLAGS_CLEAN) $(EXTRA_CXXFLAGS) -prefer-non-pic'
+  php_cxx_post=
   php_lo=o
   
   shared_c_pre='$(LIBTOOL) --mode=compile $(CC)'