freebsd-ports/Mk/Uses/alias.mk
John Marino f31e703dca Add Mk/Uses/alias.mk
When on used FreeBSD, this tool doesn't do anything.  However, when used
on DragonFly, it will define __FreeBSD__ appropriately in CFLAGS which
allows the port to build with minimal or no extra patches.

Differential Revision:	https://reviews.freebsd.org/D950
Reviewed by:		portmgr
Approved by:		bapt (portmgr)
2014-10-20 07:33:00 +00:00

31 lines
709 B
Makefile

# $FreeBSD$
#
# Add __FreeSBD__ definition to CFLAGS
# Used by DPorts when masquerading as FreeBSD allows port to build without
# additional patches
#
# Feature: alias
# Usage: USES=alias or USES=alias:ARGS
# Valid ARGS: 8, 9 (default), 10, 11
#
# MAINTAINER: marino@FreeBSD.org
.if !defined(_INCLUDE_USES_ALIAS_MK)
_INCLUDE_USES_ALIAS_MK= yes
.if ${OPSYS} == DragonFly
.if empty(alias_ARGS)
CFLAGS+= -D__FreeBSD__=9
.else
. if ${alias_ARGS} == 8 || ${alias_ARGS} == 10 \
|| ${alias_ARGS} == 9 || ${alias_ARGS} == 11
CFLAGS+= -D__FreeBSD__=${alias_ARGS}
. else
IGNORE= invalid MAJOR RELEASE argument (${alias_ARGS}) for USES=alias
. endif
.endif
.endif # OPSYS == DragonFly
.endif