Revert "python3: build against internal zlib when that is requested"

Internal zlib is not really supported anyway on any platform that uses
setup.py.

This reverts commit 6afe0e58.

Change-Id: Icf94a85c4baf00df54ee5dcca5fe3ca4a63a54a8

python3/UnpackedTarball_python3.mk

@@ -34,14 +34,6 @@ $(eval $(call gb_UnpackedTarball_add_patches,python3,\
 	python3/python-3.3.0-pythreadstate.patch.1 \
 ))
 
-ifneq ($(COM),MSC)
-ifeq ($(SYSTEM_ZLIB),NO)
-$(eval $(call gb_UnpackedTarball_add_patches,python3,\
-	python3/python-3.3.0-zlib.patch.1 \
-))
-endif
-endif
-
 ifneq ($(OS),WNT)
 $(eval $(call gb_UnpackedTarball_add_patches,python3,\
 	python3/python-3.3.0-15833.patch.1 \

python3/python-3.3.0-zlib.patch.1

-sadly python's build system is so awful it needs patching to find internal zlib
-
---- python3/setup.py	2013-05-08 13:42:03.826304937 +0200
-+++ python3/setup.py	2013-05-08 13:57:53.027231320 +0200
-@@ -1332,7 +1332,11 @@
-         #
-         # You can upgrade zlib to version 1.1.4 yourself by going to
-         # http://www.gzip.org/zlib/
--        zlib_inc = find_file('zlib.h', [], inc_dirs)
-+        if os.environ.get('SYSTEM_ZLIB') == 'NO':
-+            zlib_incdir = os.environ.get('WORKDIR') + '/' + '/UnpackedTarball/zlib/'
-+            zlib_inc = find_file('zlib.h', inc_dirs, [zlib_incdir])
-+        else:
-+            zlib_inc = find_file('zlib.h', [], inc_dirs)
-         have_zlib = False
-         if zlib_inc is not None:
-             zlib_h = zlib_inc[0] + '/zlib.h'
-@@ -1347,13 +1351,23 @@
-                         version = line.split()[2]
-                         break
-             if version >= version_req:
--                if (self.compiler.find_library_file(lib_dirs, 'z')):
-+                if os.environ.get('SYSTEM_ZLIB') == 'NO':
-+                    zlib_lib = 'zlib'
-+                    zlib_libdir = os.environ.get('OUTDIR') + '/' + 'lib'
-+#                    zlib_found = find_library_file(self.compiler, zlib_lib, lib_dirs, [zlib_libdir])
-+                    zlib_found = [zlib_libdir]
-+                else:
-+                    zlib_lib = 'z'
-+                    zlib_found = self.compiler.find_library_file(lib_dirs, zlib_lib)
-+                if zlib_found:
-                     if host_platform == "darwin":
-                         zlib_extra_link_args = ('-Wl,-search_paths_first',)
-                     else:
-                         zlib_extra_link_args = ()
-                     exts.append( Extension('zlib', ['zlibmodule.c'],
--                                           libraries = ['z'],
-+                                           libraries = [zlib_lib],
-+                                           include_dirs = zlib_inc,
-+                                           library_dirs = zlib_found,
-                                            extra_link_args = zlib_extra_link_args))
-                     have_zlib = True
-                 else: