Seg fault in home-built mutt

[news@garydjones.mailshell.com]

I managed to get mutt built at the weekend such that
the dotlock stuff was external. The build I made was
as follows:
Mutt 1.4i (2002-05-29)
[snip]
System: CYGWIN_98-4.10 1.3.20(0.73/3/2) (i686) [using ncurses 5.2]
Compile options:
-DOMAIN
-DEBUG
-HOMESPOOL  -USE_SETGID  -USE_DOTLOCK  +DL_STANDALONE
+USE_FCNTL  -USE_FLOCK
-USE_POP  -USE_IMAP  -USE_GSS  -USE_SSL  -USE_SASL
+HAVE_REGCOMP  -USE_GNU_REGEX
+HAVE_COLOR  +HAVE_START_COLOR  +HAVE_TYPEAHEAD  +HAVE_BKGDSET
+HAVE_CURS_SET  +HAVE_META  +HAVE_RESIZETERM
+HAVE_PGP  +BUFFY_SIZE -EXACT_ADDRESS  -SUN_ATTACHMENT
+ENABLE_NLS  +LOCALES_HACK  -HAVE_WC_FUNCS  +HAVE_LANGINFO_CODESET  +HAVE_LANGINFO_YESEXPR
+HAVE_ICONV  -ICONV_NONTRANS  +HAVE_GETSID  -HAVE_GETADDRINFO
ISPELL="/usr/local/bin/ispell"
SENDMAIL="/usr/lib/sendmail"
MAILPATH="/var/spool/mail"
PKGDATADIR="/usr/local/share/mutt"
SYSCONFDIR="/usr/local/etc"
EXECSHELL="/bin/sh"
-MIXMASTER

which compares with the std build:
Mutt 1.4i (2002-05-29)
[snip]
System: CYGWIN_98-4.10 1.3.20(0.73/3/2) (i686) [using ncurses 5.2]
Compile options:
-DOMAIN
-DEBUG
-HOMESPOOL  -USE_SETGID  +USE_DOTLOCK  -DL_STANDALONE
+USE_FCNTL  -USE_FLOCK
+USE_POP  +USE_IMAP  -USE_GSS  +USE_SSL  -USE_SASL
-HAVE_REGCOMP  +USE_GNU_REGEX
+HAVE_COLOR  +HAVE_START_COLOR  +HAVE_TYPEAHEAD  +HAVE_BKGDSET
+HAVE_CURS_SET  +HAVE_META  +HAVE_RESIZETERM
+HAVE_PGP  +BUFFY_SIZE -EXACT_ADDRESS  -SUN_ATTACHMENT
+ENABLE_NLS  +LOCALES_HACK  -HAVE_WC_FUNCS  -HAVE_LANGINFO_CODESET  -HAVE_LANGINFO_YESEXPR
+HAVE_ICONV  -ICONV_NONTRANS  -HAVE_GETSID  -HAVE_GETADDRINFO
-ISPELL
SENDMAIL="/usr/sbin/sendmail"
MAILPATH="/var/spool/mail"
PKGDATADIR="/usr/share/mutt"
SYSCONFDIR="/etc"
EXECSHELL="/bin/sh"
-MIXMASTER

Everything seemed to be fine until I got an email
with some attachments, which caused a segmentation
fault. Curious, I switched to the standard build,
which did not give me the same problem. I'm
reluctant to post the email which it borks on for
obviosu reasons, and I can't reproduce it with
fake data. Apart from that everything's just dandy.
Has anyone else seen anything like this? Have an
idea about what might cause it or how I can go
about getting some more info?

BTW, Gary, I tried to get my build to be
+USE_GNU_REGEX as yours but couldn't get it (I
forget now exactly what the problem was). What
are the exact ./configure options that you use,
please?

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