RE: configure with --enable-malloc-debugging fails to compile

["Dave Korn" <dave dot korn at artimi dot com>]

On 13 February 2008 22:41, Dave Korn wrote:

> On 13 February 2008 21:20, Christopher Faylor wrote:
> 
>> On Wed, Feb 13, 2008 at 12:16:44PM -0800, Jim Kleckner wrote:
>>> FYI, the --enable-malloc-debugging option fails to compile with current
>>> CVS sources. 
>>> 
>>> (/oss/src/configure --prefix=/oss/mdebug.install --enable-debugging
>>> --enable-malloc-debugging -v; make) >& make.out
>> 
>> And your proposal for fixing this is...?
>> 
>> cgf

>   I don't interpret "FYI" as indicating a proposal, just a heads-up.  I
> often find them useful even without patches attached because they direct my
> attention to things I might not have been conscious of myself.

... or amusing, as it turns out!  :)

  Here's the context, from cygmalloc.h:

    10
    11  #ifdef __cplusplus
    12  extern "C" {
    13  #endif
    14  void dlfree (void *p) __attribute__ ((regparm (1)));
    15  void *dlmalloc (unsigned size) __attribute__ ((regparm (1)));

  Here's what I see in the .ii file I got from --save-temps:

# 12 "/usr/build/src-winsup/winsup/cygwin/cygmalloc.h"
extern "C" {

void free_dbg(void *p, "/usr/build/src-winsup/winsup/cygwin/cygmalloc.h", 14)
__attribute__ ((regparm (1)));
void *malloc_dbg(unsigned size,
"/usr/build/src-winsup/winsup/cygwin/cygmalloc.h", 15) __attribute__ ((regparm
(1)));


  I'm guessing that a macro substitution that is supposed only to be applied
to calls to dlfree has been applied to the declaration.  More later.


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....