Bug 69798

Summary: libXext is not compiled when cross-compiling
Product: xorg Reporter: Sergey <kulya.xtp>
Component: Lib/XextAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED WORKSFORME QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: git   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
config.log of libXext none

Description Sergey 2013-09-25 09:00:12 UTC 
I'm trying to cross-compile libXext from git. The host system architecture is i686-pc-linux-gnu. The target system architecture is i586-pc-linux-uclibc. The target directory is /mnt/clfs/sources/xorg-build/. I build packages with build.sh from util-macros. I pass to build.sh with the following arguments: --clone /mnt/clfs/sources/xorg-build, CONFFLAGS= --build i686-pc-linux-gnu --host i586-pc-linux-uclibc --enable-malloc0returnsnull, PKG_CONFIG_PATH=/mnt/clfs/sources/xorg-build/lib/pkgconfig:/mnt/clfs/sources/xorg-build/share/pkgconfig. I get the following error message:

make[2]: Entering directory `/mnt/clfs/sources/xorg-src/lib/libXext/src'
  CC       XEVI.lo
In file included from XEVI.c:34:0:
eat.h:32:20: error: static declaration of '_XEatDataWords' follows non-static declaration
In file included from XEVI.c:27:0:
/mnt/clfs/sources/xorg-build/include/X11/Xlibint.h:840:13: note: previous declaration of '_XEatDataWords' was here
make[2]: *** [XEVI.lo] Error 1

All sources from git.
Comment 1 Sergey 2013-09-25 09:40:22 UTC 
Created attachment 86540 [details]
config.log of libXext
Comment 2 Garry Iglesias 2013-10-03 07:21:36 UTC 
Well I have a similar problem. That's it I got the same error message but in a different situation:

In file included from XEVI.c:34:0:
eat.h:32:20: error: static declaration of '_XEatDataWords' follows non-static declaration
In file included from XEVI.c:27:0:
/someplace/sandbox/build/include/X11/Xlibint.h:840:13: note: previous declaration of '_XEatDataWords' was here


My case is I'm building static libraries only to link with a redistributable standalone executable. So all my X11/Xcb/Xlib dependencies are "--enable-static" and "--disable-shared" in this sandbox.

I don't know since when this problem occurs, I just upgraded all libraries to last versions, last time it was "years" ago (2011... :) ).

Thanks.
Comment 3 Alan Coopersmith 2013-10-03 13:52:12 UTC 
You get this error message when you configure the libXext build to use headers
from a different version of libX11 than you link with.

It indicates that this test in configure.ac failed to find the _XEatDataWords
function in libX11:

# Obtain compiler/linker options for depedencies
PKG_CHECK_MODULES(XEXT, [xproto >= 7.0.13] [x11 >= 1.1.99.1] [xextproto >= 7.1.99])

# Check for _XEatDataWords function that may be patched into older Xlib releases
SAVE_LIBS="$LIBS"
LIBS="$XEXT_LIBS"
AC_CHECK_FUNCS([_XEatDataWords])
LIBS="$SAVE_LIBS"

but when you build it's defined in libX11.

Don't do that.  Use matching library & headers.

It'll get resolved in the future as we drop support for patching this into
Xlib and change the above to simply require Xlib 1.6 or newer.
Comment 4 Alan Coopersmith 2013-10-03 13:54:00 UTC 
Not enough caffiene yet this morning, change "but when you build it's defined
in libX11." to "but when you build it's defined in <X11/Xlibint.h>" (a header
from the libX11 package).

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