Joubert Nel wrote:
Hi,

The code comments for this code revision 
(http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/head/execinfo.h?r=3988)
 indicate this header file is for glibc backtrace compatibility.

On Solaris 10 I used to compile a system (SBCL) with gcc 4.0.2, gmake 3.81, and 
gas 2.17 (GNU tools all from Blastwave).

Now, on Solars 11 (Express, Developer 5/07 - i.e. Nevada 64a) x86-74, I get an 
error message as follows:

gmake: Entering directory `/tank/downloads/sbcl-1.0.6/src/runtime'
gcc -g -O2 -Wall -D__EXTENSIONS__ -D_POSIX_C_SOURCE=199506L -DSVR4
-D_REENTRANT -I.  -c -o alloc.o alloc.c
gcc -g -O2 -Wall -D__EXTENSIONS__ -D_POSIX_C_SOURCE=199506L -DSVR4
-D_REENTRANT -I.  -c -o backtrace.o backtrace.c
backtrace.c: In function 'altstack_pointer_p':
backtrace.c:293: warning: comparison of distinct pointer types lacks a
cast
backtrace.c:293: warning: comparison of distinct pointer types lacks a
cast
backtrace.c: At top level:
backtrace.c:579: error: conflicting types for 'backtrace'
/usr/include/execinfo.h:41: error: previous declaration of 'backtrace'
was here
backtrace.c: In function 'backtrace':
backtrace.c:581: warning: unused variable 'i'
gmake: *** [backtrace.o] Error 1
gmake: Leaving directory `/tank/downloads/sbcl-1.0.6/src/runtime'

Of course, when I rename "backtrace" in the code that I'm trying to compile all 
works, but I'm wondering why this is now happening in Solaris 11 and whether it is 
perhaps a config issue on my part.

In short - for this code to compile, do I *have* to rename "backtrace"?


Someone else ran into a similar problem with Ruby after my putback to
introduce backtrace() into Solaris.

I filed
6549846 backtrace() visibility after including ucontext.h breaks ruby
build

I fixed it in build 67.

The fix was simply to remove the include of execinfo.h from ucontext.h.
You may wish to do that manually until you install 67.

- Bart


--
Bart Smaalders                  Solaris Kernel Performance
[EMAIL PROTECTED]               http://blogs.sun.com/barts
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