- Convert NO_INSTALLLIB option to a new syntax: makefiles should

test MK_INSTALLLIB, users can set WITHOUT_INSTALLLIB.  The old
  NO_INSTALLLIB is still supported as several makefiles set it.

- While here, fix an install when instructed not to install libs
  (usr.bin/lex/lib/Makefile).

PR:		bin/114200
Submitted by:	Henrik Brix Andersen

lib/libpam/modules/pam_unix/Makefile

@@ -35,6 +35,7 @@
 # $FreeBSD$
 
 NO_PROFILE=
+NO_INSTALLLIB=
 .include <bsd.own.mk>
 
 LIB=	pam_unix

lib/ncurses/ncurses/Makefile

@@ -280,7 +280,7 @@ INCS=		${HEADERS} ${SRCHDRS}
 INCSLINKS=	curses.h ${INCLUDEDIR}/ncurses.h
 .endif
 
-.if !defined(NO_INSTALLLIB)
+.if ${MK_INSTALLLIB} != "no"
 SYMLINKS+=	libncurses${LIB_SUFFIX}.a ${LIBDIR}/libcurses${LIB_SUFFIX}.a
 SYMLINKS+=	libncurses${LIB_SUFFIX}.a ${LIBDIR}/libtermcap${LIB_SUFFIX}.a
 SYMLINKS+=	libncurses${LIB_SUFFIX}.a ${LIBDIR}/libtermlib${LIB_SUFFIX}.a

share/mk/bsd.lib.mk

@@ -235,7 +235,7 @@ _SHLINSTALLFLAGS:=	${_SHLINSTALLFLAGS${ie}}
 realinstall: _libinstall
 .ORDER: beforeinstall _libinstall
 _libinstall:
-.if defined(LIB) && !empty(LIB) && !defined(NO_INSTALLLIB)
+.if defined(LIB) && !empty(LIB) && ${MK_INSTALLLIB} != "no"
 	${INSTALL} -C -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
 	    ${_INSTALLFLAGS} lib${LIB}.a ${DESTDIR}${LIBDIR}
 .endif

share/mk/bsd.own.mk

@@ -188,6 +188,7 @@ COMPRESS_EXT?=	.gz
 # regardless of user's setting).
 #
 .for var in \
+    INSTALLLIB \
     MAN \
     PROFILE
 .if defined(NO_${var})
@@ -322,6 +323,7 @@ WITH_IDEA=
     I4B \
     INET6 \
     INFO \
+    INSTALLLIB \
     IPFILTER \
     IPX \
     KERBEROS \

usr.bin/lex/lib/Makefile

@@ -6,8 +6,10 @@ LIB=    ln
 SRCS=   libmain.c libyywrap.c
 NO_PIC=
 
+.if ${MK_INSTALLLIB} != "no"
 LINKS=  ${LIBDIR}/libln.a ${LIBDIR}/libl.a
 LINKS+=	${LIBDIR}/libln.a ${LIBDIR}/libfl.a
+.endif
 
 .if ${MK_PROFILE} != "no"
 LINKS+= ${LIBDIR}/libln_p.a ${LIBDIR}/libl_p.a