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A problem with Cygwin malloc & friends?

I flag the following for the sake of completeness.

I have the habit to build Emacs from CVS almost weekly, without big problems.

Recently the unicode branch of Emacs was merged to trunk. Since then,
the build fails as described here [1].

I have tried with: GCC-3.4.4, 4.0.4, 4.1.2, 4.2.2, 4.2.3; with
Cygwin-1.5.25-7, 1.5.25-5, 1.5.24-2 (Jan. 2007) and the snapshot 20080129.

In all cases it fails in the same manner [1]!

I have posted this on emacs-devel and the conclusion seems that,
perhaps, the problem is in malloc & friends [2].

The following steps should reproduce the failure (until the unicode
branch was merged, I never met it):

cd /tmp
cvs -z3 co -P emacs
mkdir -p /tmp/build
cd /tmp/build
/tmp/emacs/configure --with-x-toolkit=lucid
make bootstrap

If I remember correctly, malloc and/or gmalloc had caused problems in the build of Emacs with the GTK support (and this forced us to configure --with-x-toolkit=lucid). The thing was discussed for a while on this list.

Cheers, Angelo.

---- [1] [2]

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