bug#11379: emacs 24; compilation fails in debug mode

bug#11379: emacs 24; compilation fails in debug mode

[Dov Grobgeld]

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Chucking out git head (git commit e3e392d from git://repo.or.cz/emacs.git)
and doing a debug build as described below
fails. The compilation looks for the non-existing file "chkmalloc.h".

Here are the steps that I performed:

  ./autogen.sh
  ./configure --prefix=/usr/local/public-dev/ CPPFLAGS=-DDEBUG CFLAGS="-g
-O0"
  make

which fails as follows:

gcc -std=gnu99     -DHAVE_CONFIG_H -I. -I../src -I../lib
-I/space/pub-repos/emacs.git/lib-src
-I/space/pub-repos/emacs.git/lib-src/../src
-I/space/pub-repos/emacs.git/lib-src/../lib  -Wl,-znocombreloc  -DDEBUG -g
-O0 -DEMACS_NAME="\"GNU Emacs\"" \
  -DVERSION="\"24.1.50\"" /space/pub-repos/emacs.git/lib-src/etags.c \
  regex.o ../lib/libgnu.a  -o etags
/space/pub-repos/emacs.git/lib-src/etags.c:233:24: fatal error:
chkmalloc.h: No such file or directory

System is: Linux grower 3.3.2-6.fc16.i686 #1 SMP Sat Apr 21 13:23:12 UTC
2012 i686 i686 i386 GNU/Linux

Regards,
Dov

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bug#11379: emacs 24; compilation fails in debug mode

[Glenn Morris]

Dov Grobgeld wrote:

>   ./configure --prefix=/usr/local/public-dev/ CPPFLAGS=-DDEBUG CFLAGS="-g
> -O0"

FYI, there is no "debug mode" for compiling Emacs.
Or rather, if there is, it is to configure with --enable-checking or
something similar.

-DDEBUG appears to be something that the authors of a few specialized
files have used for their own convenience; or was inherited from files
that also lived outside Emacs at one time. So I wouldn't expect to get
much out of trying to compile all of Emacs with it (why did you try?).

In the particular case of etags, it may well be referring to some
external .h file that the maintainer wrote for his own use.
(maybe http://fly.isti.cnr.it/pub/software/C/chkmalloc.h ?)

bug#11379: emacs 24; compilation fails in debug mode

[Francesco Potortì]

>Dov Grobgeld wrote:
>
>>   ./configure --prefix=/usr/local/public-dev/ CPPFLAGS=-DDEBUG CFLAGS="-g
>> -O0"
>
>FYI, there is no "debug mode" for compiling Emacs.
>Or rather, if there is, it is to configure with --enable-checking or
>something similar.
>
>-DDEBUG appears to be something that the authors of a few specialized
>files have used for their own convenience; or was inherited from files
>that also lived outside Emacs at one time. So I wouldn't expect to get
>much out of trying to compile all of Emacs with it (why did you try?).
>
>In the particular case of etags, it may well be referring to some
>external .h file that the maintainer wrote for his own use.
>(maybe http://fly.isti.cnr.it/pub/software/C/chkmalloc.h ?)

Yes, that's it.  It makes no sense using -DDEBUG while compiling etags
outside of the development environment I use to maintain etags.