[Qemu-devel] [Bug 1008136] Re: Cannot compile 1.1.0

[Stefan Weil]

I just compiled QEMU 1.1.0 on a fresh i386 installation of Debian Sid with the 
same configuration
which you used (well, nearly the same - I did not build the documentation).

Compilation of fsdev/virtfs-proxy-helper.c works without any error
message.

/usr/include/i386-linux-gnu/asm/sigcontext.h uses __u32 and __u64, but you got 
only error messages
for __u64. That indicates that __u32 was defined. If you want to see were it 
was defined, you can
modify /usr/include/i386-linux-gnu/asm/sigcontext.h (after making a backup 
copy):

* Add wrong typedefs for __u32 and __u64 starting in line 23:
  typedef int __u32;
  typedef int __u64;

* Run gcc with fsdev/virtfs-proxy-helper.c (see your previous mail).

Here is what I get:


# gcc -I/usr/local/src/qemu/qemu-1.1.0/slirp -I. 
-I/usr/local/src/qemu/qemu-1.1.0 -I/usr/local/src/qemu/qemu-1.1.0/fpu -Werror 
-fPIE -DPIE -m32 -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 
-D_LARGEFILE_SOURCE -Wstrict-prototypes -Wredundant-decls -Wall -Wundef 
-Wwrite-strings -Wmissing-prototypes -fno-strict-aliasing  
-fstack-protector-all -Wendif-labels -Wmissing-include-dirs -Wempty-body 
-Wnested-externs -Wformat-security -Wformat-y2k -Winit-self 
-Wignored-qualifiers -Wold-style-declaration -Wold-style-definition 
-Wtype-limits -I/usr/include/libpng12   -pthread -I/usr/include/glib-2.0 
-I/usr/lib/i386-linux-gnu/glib-2.0/include    
-I/usr/local/src/qemu/qemu-1.1.0/include -MMD -MP -MT 
fsdev/virtfs-proxy-helper.o -MF fsdev/virtfs-proxy-helper.d -O2 -g  -c -o 
fsdev/virtfs-proxy-helper.o fsdev/virtfs-proxy-helper.c 
In file included from /usr/include/i386-linux-gnu/bits/sigcontext.h:28:0,
                 from /usr/include/signal.h:339,
                 from ./qemu-common.h:38,
                 from fsdev/virtfs-proxy-helper.c:23:
/usr/include/i386-linux-gnu/asm/sigcontext.h:23:13: error: conflicting types 
for '__u32'
In file included from /usr/include/asm-generic/types.h:7:0,
                 from /usr/include/i386-linux-gnu/asm/types.h:4,
                 from /usr/include/linux/types.h:4,
                 from /usr/include/sys/capability.h:24,
                 from fsdev/virtfs-proxy-helper.c:15:
/usr/include/asm-generic/int-ll64.h:26:22: note: previous declaration of 
'__u32' was here
In file included from /usr/include/i386-linux-gnu/bits/sigcontext.h:28:0,
                 from /usr/include/signal.h:339,
                 from ./qemu-common.h:38,
                 from fsdev/virtfs-proxy-helper.c:23:
/usr/include/i386-linux-gnu/asm/sigcontext.h:24:13: error: conflicting types 
for '__u64'
In file included from /usr/include/asm-generic/types.h:7:0,
                 from /usr/include/i386-linux-gnu/asm/types.h:4,
                 from /usr/include/linux/types.h:4,
                 from /usr/include/sys/capability.h:24,
                 from fsdev/virtfs-proxy-helper.c:15:
/usr/include/asm-generic/int-ll64.h:30:42: note: previous declaration of 
'__u64' was here


Of course there are errors now (there should be conflicting types for __u32 and 
__u64, but I guess you will
get only one of those). The error messages also tell the source of the original 
(correct) definition.
In my case, it was /usr/include/asm-generic/int-ll64.h:26:22 and 
/usr/include/asm-generic/int-ll64.h:30:42.

Please try these instructions and compare your with my compiler output.

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https://bugs.launchpad.net/bugs/1008136

Title:
  Cannot compile 1.1.0

Status in QEMU:
  New

Bug description:
  Howdy,

  Testing QEMU 1.1.0 but doesn't compile:

  
    CC    fsdev/virtfs-proxy-helper.o
  In file included from /usr/include/i386-linux-gnu/bits/sigcontext.h:28:0,
                   from /usr/include/signal.h:339,
                   from ./qemu-common.h:38,
                   from fsdev/virtfs-proxy-helper.c:23:
  /usr/include/i386-linux-gnu/asm/sigcontext.h:28:2: error: unknown type name 
'__u64'
  /usr/include/i386-linux-gnu/asm/sigcontext.h:191:2: error: unknown type name 
'__u64'
  /usr/include/i386-linux-gnu/asm/sigcontext.h:192:2: error: unknown type name 
'__u64'
  /usr/include/i386-linux-gnu/asm/sigcontext.h:193:2: error: unknown type name 
'__u64'
  make: *** [fsdev/virtfs-proxy-helper.o] Error 1

  
  Ideas?
  GCC 4.7, kernel 3.2x

  Thanks in advanced,
  Jorge,

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