mail/mutt-devel fails to compile with slang option

[Guillaume Lasmayous <netbsd-lists%guigui2.net@localhost>]

Hi,

I enable slang option for compiling mail/mutt-devel, and it fails with:

ranlib libimap.a
cc -DPKGDATADIR=\"/usr/pkg/share/mutt\" -DSYSCONFDIR=\"/usr/pkg/etc\"
-DBINDIR=\"/usr/pkg/bin\" -DMUTTLOCALEDIR=\"/usr/pkg/share/locale\"
-DHAVE_CONFIG_H=1 -I.  -I. -I. -I./imap  -Iintl  -I/usr/pkg/include
-I/usr/include -I/usr/pkg/include -I/usr/include -I./intl  -Wall
-pedantic -Wno-long-long -O2 -I/usr/pkg/include -I/usr/include -MT
mvchgat.o -MD -MP -MF .deps/mvchgat.Tpo -c -o mvchgat.o mvchgat.c
mvchgat.c:10: error: expected declaration specifiers or '...' before
'attr_t'
mvchgat.c: In function 'mvwchgat':
mvchgat.c:14: warning: implicit declaration of function 'wattr_set'
mvchgat.c:14: error: 'attr' undeclared (first use in this function)
mvchgat.c:14: error: (Each undeclared identifier is reported only once
mvchgat.c:14: error: for each function it appears in.)
mvchgat.c: At top level:
mvchgat.c:20: error: expected declaration specifiers or '...' before
'attr_t'
mvchgat.c: In function 'mvchgat':
mvchgat.c:23: error: 'attr' undeclared (first use in this function)
mvchgat.c:23: warning: passing argument 6 of 'mvwchgat' makes pointer
from integer without a cast
mvchgat.c:23: error: too many arguments to function 'mvwchgat'
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/mail/mutt-devel/work/mutt-1.5.20
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/mail/mutt-devel/work/mutt-1.5.20
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/mail/mutt-devel/work/mutt-1.5.20
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/mail/mutt-devel
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/mail/mutt-devel




I tested with this only option enabled, same result. Works perfectly
with *curses* option.

Can you help ?
Thanks,
Guillaume.