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Bug#314905: marked as done (xfree86: FTBFS with gcc-4.0: Invalid lvalue in assignment)

Your message dated Sun, 21 Jan 2007 03:11:05 +0100
with message-id <45B2CBB9.30903@ens-lyon.org>
and subject line Bug#314905: xfree86: FTBFS with gcc-4.0: Invalid lvalue in assignment
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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Debian bug tracking system administrator
(administrator, Debian Bugs database)
--- Begin Message --- 
Package: xfree86
Severity: normal
Version: 4.3.0.dfsg.1-14
Tags: patch

When I try to build xfree86 with gcc-4.0 (on amd64), I get:

...
rm -f tdfx_span.o
gcc -c -O2 -g -ansi -pedantic -Wall -Wpointer-arith -Wstrict-prototypes          -Wmissing-prototypes -Wmissing-declarations                      -Wredundant-decls -Wnested-externs -Wundef  -I../../../../../../exports/include/X11 -I../../../../../../include/extensions -I../../../../../../extras/Mesa/src               -I../../../../../../lib/GL/mesa/src/drv/common           -I../../../../../../lib/GL/mesa/src/drv/tdfx -I../../../../../../lib/GL/dri             -I../../../../../../lib/GL/glx          -I../../../../../../exports/include             -I../../../../../../exports/include/GL          -I../../../../../../programs/Xserver/GL/dri             -I../../../../../../programs/Xserver/hw/xfree86/os-support     -I../../../../../../programs/Xserver/hw/xfree86/drivers/tdfx             -I../../../../../../programs/Xserver/hw/xfree86/common          -I../../../../../../lib/GL/dri/drm              -I../../../../../../lib/GL/include  -I../../../../../.. -I../../../../../../exports/include    -Dlinux -D__x86_64__ -D_POSIX_C_SOURCE=199309L                           -D_POSIX_SOURCE -D_XOPEN_SOURCE                -D_BSD_SOURCE -D_SVID_SOURCE                              -D_GNU_SOURCE           -DFUNCPROTO=15 -DNARROWPROTO -DXTHREADS  -D_REENTRANT -DXUSE_MTSAFE_API    -DMALLOC_0_RETURNS_NULL -DGLXEXT -DXF86DRI -DGLX_DIRECT_RENDERING -DGLX_USE_DLOPEN -DGLX_USE_MESA -D__GLX_ALIGN64 -DX_BYTE_ORDER=X_LITTLE_ENDIAN      -fPIC tdfx_span.c
tdfx_span.c: In function 'tdfxDDWriteDepthPixels':
tdfx_span.c:976: error: invalid lvalue in assignment
tdfx_span.c:1008: error: invalid lvalue in assignment
tdfx_span.c: In function 'write_stencil_pixels':
tdfx_span.c:1242: error: invalid lvalue in assignment
make[7]: *** [tdfx_span.o] Error 1
make[7]: Leaving directory `/tmp/buildd/xfree86-4.3.0.dfsg.1/build-tree/xc/lib/GL/mesa/src/drv/tdfx'
make[6]: *** [all] Error 2
make[6]: Leaving directory `/tmp/buildd/xfree86-4.3.0.dfsg.1/build-tree/xc/lib/GL/mesa/src/drv'
make[5]: *** [all] Error 2
make[5]: Leaving directory `/tmp/buildd/xfree86-4.3.0.dfsg.1/build-tree/xc/lib/GL'
make[4]: *** [all] Error 2
make[4]: Leaving directory `/tmp/buildd/xfree86-4.3.0.dfsg.1/build-tree/xc/lib'
make[3]: *** [all] Error 2
make[3]: Leaving directory `/tmp/buildd/xfree86-4.3.0.dfsg.1/build-tree/xc'
make[2]: *** [World] Error 2
make[2]: Leaving directory `/tmp/buildd/xfree86-4.3.0.dfsg.1/build-tree/xc'
make[1]: *** [World] Error 2
make[1]: Leaving directory `/tmp/buildd/xfree86-4.3.0.dfsg.1/build-tree/xc'
make: *** [stampdir/build] Error 2

I've attached a patch which makes xfree86 build with gcc-4.0.

-- System Information:
Debian Release: testing/unstable
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.11-9-amd64-k8
Locale: LANG=en, LC_CTYPE=en (charmap=UTF-8) (ignored: LC_ALL set to en_US.UTF-8)

-- 
Daniel Schepler              "Please don't disillusion me.  I
schepler@math.berkeley.edu    haven't had breakfast yet."
                                 -- Orson Scott Card

diff -urN xfree86-4.3.0.dfsg.1.old/debian/patches/099za_gcc_4.0_compilation_fix.diff xfree86-4.3.0.dfsg.1/debian/patches/099za_gcc_4.0_compilation_fix.diff
--- xfree86-4.3.0.dfsg.1.old/debian/patches/099za_gcc_4.0_compilation_fix.diff	1970-01-01 00:00:00.000000000 +0000
+++ xfree86-4.3.0.dfsg.1/debian/patches/099za_gcc_4.0_compilation_fix.diff	2005-06-19 03:48:14.000000000 +0000
@@ -0,0 +1,30 @@
+--- xc/lib/GL/mesa/src/drv/tdfx/tdfx_span.c~	2005-06-19 03:20:47.000000000 +0000
++++ xc/lib/GL/mesa/src/drv/tdfx/tdfx_span.c	2005-06-19 03:24:00.000000000 +0000
+@@ -588,12 +588,14 @@
+     (((type *)((ReadParamsp)->lfbWrapPtr))                          \
+                  [((y)) * ((ReadParamsp)->LFBStrideInElts)          \
+                    + ((x) - (ReadParamsp)->firstWrappedX)])
+-#define PUT_FB_DATA(ReadParamsp, type, x, y, value)                        \
+-    (GET_FB_DATA(ReadParamsp, type, x, y) = (type)(value))
+ #define PUT_ORDINARY_FB_DATA(ReadParamsp, type, x, y, value)              \
+     (GET_ORDINARY_FB_DATA(ReadParamsp, type, x, y) = (type)(value))
+ #define PUT_WRAPPED_FB_DATA(ReadParamsp, type, x, y, value)                \
+     (GET_WRAPPED_FB_DATA(ReadParamsp, type, x, y) = (type)(value))
++#define PUT_FB_DATA(ReadParamsp, type, x, y, value) \
++    (((x) < (ReadParamsp)->firstWrappedX) \
++        ? PUT_ORDINARY_FB_DATA(ReadParamsp, type, x, y, value) \
++        : PUT_WRAPPED_FB_DATA(ReadParamsp, type, x, y, value))
+ 
+ static void
+ tdfxDDWriteDepthSpan(GLcontext * ctx,
+--- xc/programs/Xserver/hw/xfree86/xf86cfg/loader.h~	2005-06-19 03:37:30.000000000 +0000
++++ xc/programs/Xserver/hw/xfree86/xf86cfg/loader.h	2005-06-19 03:37:50.000000000 +0000
+@@ -75,7 +75,7 @@
+     unsigned long       num;
+     char *              str;
+     double              realnum;
+-    Bool		bool;
++    Bool		boolval;
+     OptFrequency	freq;
+ } ValueUnion;
+

--- End Message ---
--- Begin Message --- 
XFree86/Sarge won't get fixed for gcc-4.0 since the default compiler for
Sarge is gcc 3.3. But, Xorg/Etch compiles fine with gcc 4. So closing.

Brice

--- End Message ---
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