# $BSDSUniX$

.if !target(__<bsd.symcompat.mk>__)
__<bsd.symcompat.mk>__:

.include <bsd.init.mk>

. if ${MK_FBSD_COMPAT} != "no"
# Find the version map given the version definitions
# and symbol maps then generate a header for aliasing symbols.
.  if ${MK_SYMVER} == "yes" && !empty(VERSION_DEF) && !empty(SYMBOL_MAPS)
# Find the awk script that generates the version map.
SYM_VERSION_GEN?=	version_gen.awk
SYM_VERSION_MAP?=	Version.map
FBSD_COMPAT_MAP?=	freebsd_sym_compat_map.c

CLEANFILES+=	${FBSD_COMPAT_MAP}
SRCS+=		${FBSD_COMPAT_MAP}

# Compute the make's -m path.
_mpath=
_oarg=
.   for _arg in ${.MAKEFLAGS}
.    if ${_oarg} == "-m"
_mpath+= ${_arg}
.    endif
_oarg=  ${_arg}
.   endfor
_mpath+= /usr/share/mk

# Look up ${SYM_VERSION_GEN} in ${_mpath}.
_vgen=
.   for path in ${_mpath}
.    if empty(_vgen)
.     if exists(${path}/${SYM_VERSION_GEN})
_vgen=  ${path}/${SYM_VERSION_GEN}
.     endif
.    endif
.   endfor
.   if empty(_vgen)
.error ${SYM_VERSION_GEN} not found in the search path.
.   endif


${FBSD_COMPAT_MAP}: ${VERSION_DEF} ${_vgen} ${SYMBOL_MAPS}
	cat ${SYMBOL_MAPS} | ${CPP} - - \
	    | awk -v vfile=${VERSION_DEF} -f ${_vgen} compat=1 > ${.TARGET}

.  endif  # ${MK_SYMVER} == "yes" && !empty(SYM_VERSION_DEF) && !empty(SYMBOL_MAPS)
. endif  # ${MK_FBSD_COMPAT} != "no"
.endif  # !target(__<bsd.symcompat.mk>__)