6c25dec844
This is based on the decision The NetBSD Foundation made in 2008 to do so, which was already applied to src. This change has been applied to code which is likely not in other repositories. ok board@, reviewed by riastradh@
99 lines
3.6 KiB
Makefile
99 lines
3.6 KiB
Makefile
# $NetBSD: find-headers.mk,v 1.3 2018/08/22 20:48:36 maya Exp $
|
|
#
|
|
# Copyright (c) 2005 The NetBSD Foundation, Inc.
|
|
# All rights reserved.
|
|
#
|
|
# This code is derived from software contributed to The NetBSD Foundation
|
|
# by Johnny C. Lam.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions
|
|
# are met:
|
|
# 1. Redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer.
|
|
# 2. Redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
#
|
|
|
|
#
|
|
# This is a "subroutine" that can be included to detect the presence of
|
|
# header files in the base system.
|
|
#
|
|
# The following variables must be defined before including this file:
|
|
#
|
|
# BUILTIN_FIND_HEADERS_VAR is a list of variables to define. These
|
|
# variables take the value of the path to the file that is
|
|
# "found".
|
|
#
|
|
# BUILTIN_FIND_HEADERS.<var> is the list of header files to find, in
|
|
# order, on the ${BUILTIN_INCLUDE_DIRS}. The variable <var> is set
|
|
# to the first path "found" on the filesystem.
|
|
#
|
|
# Optionally, the following variables may also be defined:
|
|
#
|
|
# BUILTIN_FIND_GREP.<var> is a regular expression that must be
|
|
# matched within a file in order for the file to be considered
|
|
# "found". If it isn't defined, then we simply check for the
|
|
# existence of the file.
|
|
#
|
|
# After including this file, the following variables are defined:
|
|
#
|
|
# <var> is the first of the header file listed in
|
|
# ${BUILTIN_FIND_HEADERS.<var>} that is "found" in
|
|
# ${BUILTIN_INCLUDE_DIRS}, or else it is "__nonexistent__".
|
|
#
|
|
# An example use is:
|
|
#
|
|
# BUILTIN_FIND_HEADERS_VAR:= FOO BAR
|
|
#
|
|
# BUILTIN_FIND_HEADERS.FOO= header1.h header2.h
|
|
# BUILTIN_FIND_GREP.FOO= \#define.*FOO
|
|
#
|
|
# BUILTIN_FIND_HEADERS.BAR= header3.h heaer/4.h
|
|
# .include "../../mk/buildlink3/builtin-files.mk"
|
|
#
|
|
|
|
.if empty(USE_TOOLS:Mecho)
|
|
USE_TOOLS+= echo
|
|
.endif
|
|
.if empty(USE_TOOLS:Mgrep)
|
|
USE_TOOLS+= grep
|
|
.endif
|
|
|
|
BUILTIN_INCLUDE_DIRS?= ${COMPILER_INCLUDE_DIRS} ${"${X11_TYPE:Mnative}":?${X11BASE}/include:}
|
|
|
|
.for _var_ in ${BUILTIN_FIND_HEADERS_VAR}
|
|
. if !defined(${_var_})
|
|
${_var_}= __nonexistent__
|
|
. for _file_ in ${BUILTIN_FIND_HEADERS.${_var_}}
|
|
. for _dir_ in ${BUILTIN_INCLUDE_DIRS}
|
|
. if !empty(${_var_}:M__nonexistent__) && exists(${_dir_}/${_file_})
|
|
. if !defined(BUILTIN_FIND_GREP.${_var_})
|
|
${_var_}= ${_dir_}/${_file_}
|
|
. else
|
|
${_var_}!= \
|
|
if ${GREP} -q ${BUILTIN_FIND_GREP.${_var_}:Q} ${_dir_:Q}/${_file_:Q}; then \
|
|
${ECHO} ${_dir_:Q}/${_file_:Q}; \
|
|
else \
|
|
${ECHO} __nonexistent__; \
|
|
fi
|
|
. endif
|
|
. endif
|
|
. endfor
|
|
. endfor
|
|
. endif
|
|
MAKEVARS+= ${_var_}
|
|
.endfor
|