On Sat, Aug 6, 2011 at 12:08 AM, Alex Villacís Lasso < a_villacis@palosanto.com> wrote:
El 02/08/11 17:38, Octavian Voicu escribió:
When building a 32-bit wine in a 64-bit build environment with
default glib headers (gstreamer uses glib.h), glib 64-bit types (such as gint64 and guint64) are not properly defined, causing many compiler warnings and most likely a broken winegstreamer.dll.
Although both gstreamer and glib are included in the ia32-libs package (on Ubuntu, and possibly others), the lack of a proper glibconfig.h makes the gstreamer headers unusable for 32-bit builds.
My build system is a Fedora 14 x86_64, and I am affected by this.
What is really happening is that, on my 64-bit system, both glib2-devel.i686 and glib2-devel.x86_64 are installed:
[alex@srv64 wine-build]$ rpm -qf /usr/lib64/glib-2.0/include/** glibconfig.h glib2-devel-2.26.0-2.fc14.x86_**64 [alex@srv64 wine-build]$ rpm -qf /usr/lib/glib-2.0/include/**glibconfig.h glib2-devel-2.26.0-2.fc14.i686 [alex@srv64 wine-build]$
Instead of shipping a single header file that uses compiler or preprocessor defines, like /usr/include/stdint.h, glib2 ships two include files, one for each architecture. The pkg-config --cflags option does not handle the concept of an architecture-dependent include file correctly (or at all), so it ends up reporting the 64-bit header even for the 32-bit build. The 32-bit header defined gint64 as signed long long, but it is defined as signed long in the 64 bit header. Therefore the bug.
Hello,
Ubuntu also has multiarch support, but it's not enabled by default so I guess it's not that widespread yet (and the legacy ia32-libs is still a dependency in many places). But this would be the proper way, having separate architecture-dependent include files like you have. I guess that can be made to work on latest Ubuntu also, but it's not that easy as an `apt-get install`.
Problem is, like you noticed, tools like pkg-config don't have proper support for multiarch yet.
A workaround I am testing is to force PKG_CONFIG_PATH to the 32-bit directory for the configure and make steps:
[alex@srv64 wine-build]$ pkg-config --cflags gstreamer-app-0.10 -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include -I/usr/include/libxml2 [alex@srv64 wine-build]$ PKG_CONFIG_PATH=/usr/lib/**pkgconfig pkg-config --cflags gstreamer-app-0.10 -pthread -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/libxml2 [alex@srv64 wine-build]$
Is there any standard/known way of automating this?
I guess you could specify your own PKG_CONFIG_PATH when running configure, like this (which is probably what you do already):
PKG_CONFIG_PATH=/usr/lib/**pkgconfig ./configure
A proper fix would be a patch to configure.ac to detect the correct PKG_CONFIG_PATH for the target architecture. There is also a proposed change [1] to pkgconfig to allow you to specify the host system type for cross-compiles, but I'm not sure what the status of that is.
Octavian