- centralize WARNS=4, no need for WARNS=0 for the linker errors

(linking against) dummy idea
- add MKCRYPTO_IDEA support. Alas the code does not seem work accept my
  passphrase on the idea key. A bug?

libmj/Makefile

@@ -7,7 +7,6 @@ USE_FORT?= yes
 LIB= mj
 SRCS= mj.c
 MAN= libmj.3
-WARNS=4
 
 EXTDIST=${.CURDIR}/../dist
 

libpaa/Makefile

@@ -16,7 +16,6 @@ LIBDPLIBS+=	z	${NETBSDSRCDIR}/lib/libz
 LIBDPLIBS+=	bz2	${NETBSDSRCDIR}/lib/libbz2
 
 MAN=		libpaa.3
-WARNS=		4
 
 .PATH: ${.CURDIR}/../dist/src/pgp2ssh ${.CURDIR}/../dist/src/libpaa
 

pgp2ssh/Makefile

@@ -20,7 +20,6 @@ LDADD+=		-lcrypto -lz -lbz2
 DPADD+=		${LIBCRYPTO} ${LIBZ} ${LIBBZ2}
 
 MAN=		pgp2ssh.1
-WARNS=		0
 
 .PATH: ${.CURDIR}/../dist/src/pgp2ssh ${.CURDIR}/../dist/src/hkpclient