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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_open62541_check_lib.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_OPEN62541_CHECK_LIB([STATIC-FIRST = `no'], [ACTION-IF-FOUND],
# [ACTION-IF-NOT-FOUND])
#
# DESCRIPTION
#
# Searches for the library file of the open62541 library [1].
#
# The open62541 library is a cmake-based project, that supplies both a
# shared and a static library (with different names). The
# AX_OPEN62541_CHECK_LIB macro can search for both and adds the first one
# found to the LIBS Makefile variable. The search can be in either order
# (shared first or static first), which is selectable on macro invocation
# with the STATIC-FIRST parameter. The user can change this default by
# invoking configure with either the --with-open62541-shared or
# --with-open62541-static option (the named one is checked first).
#
# Either shared or static library can be excluded from checking completely
# with the options --without-open62541-shared and
# --without-open62541-static.
#
# If the with_open62541 shell variable is set to "no" (e.g. from running
# the AX_OPEN62541_PATH macro and the user giving configure the option
# "--without-open62541"), then expands ACTION-IF-NOT-FOUND without any
# checks. The same is true if both --without-open62541-shared and
# --without-open62541-static are given.
#
# [1]: <http://open62541.org/>
#
# LICENSE
#
# Copyright (c) 2016 Olaf Mandel <olaf@mandel.name>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 2
# _AX_OPEN62541_CHECK_LIB_arg(THIS, OTHER)
# ----------------------------------------
# Define the option --with-open62541-THIS, including checking that no
# unknown argument is given or that both --with-open62541-THIS and
# --with-open62541-OTHER are called.
m4_define([_AX_OPEN62541_CHECK_LIB_arg],
[AC_ARG_WITH([open62541-$1],
[AS_HELP_STRING([--with-open62541-$1],
[search for the $1 open62541 library first])],
[], [])dnl
AS_IF([test x${with_open62541_$1:+set} == xset]dnl
[ -a "x$with_open62541_$1" != xno -a "x$with_open62541_$1" != xyes],
[AC_MSG_FAILURE([--with-open62541-$1 does not take an argument])],
[test x${with_open62541_$1:+set} == xset]dnl
[ -a "x$with_open62541_$1" == xyes -a x${with_open62541_$2:+set} == xset]dnl
[ -a "x$with_open62541_$2" == xyes],
[AC_MSG_FAILURE([--with-open62541-$1 and --with-open62541-$2 are]dnl
[ mutually exclusive])])
])# _AX_OPEN62541_CHECK_LIB_arg
# _AX_OPEN62541_CHECK_LIB_1(SHARED-STATIC, ACTION-IF-FOUND,
# ACTION-IF-NOT-FOUND)
# ---------------------------------------------------------
# Checks for the desired library if not forbidden by
# with_open62541_(shared|static) shell variables.
m4_define([_AX_OPEN62541_CHECK_LIB_1],
[m4_pushdef([lib], m4_if([$1], [shared], [open62541],
[$1], [static], [open62541-static]))dnl
AS_IF([test "x$with_open62541_$1" != xno],
[AC_CHECK_LIB(m4_defn([lib]), [UA_Server_new], [$2], [$3])],
[$3])
m4_popdef([lib])dnl
])# _AX_OPEN62541_CHECK_LIB_1
# AX_OPEN62541_CHECK_LIB([STATIC-FIRST], [ACTION-IF-FOUND],
# [ACTION-IF-NOT-FOUND])
# ---------------------------------------------------------
AC_DEFUN([AX_OPEN62541_CHECK_LIB],
[m4_pushdef([staticfirst], m4_normalize([$1]))dnl
m4_bmatch(m4_defn([staticfirst]),
[^\([Nn][Oo]?\|0\)$], [m4_define([staticfirst], [])])dnl
m4_pushdef([first], m4_ifblank(m4_defn([staticfirst]), [shared], [static]))dnl
m4_pushdef([secnd], m4_ifblank(m4_defn([staticfirst]), [static], [shared]))dnl
dnl
_AX_OPEN62541_CHECK_LIB_arg([shared], [static])dnl
_AX_OPEN62541_CHECK_LIB_arg([static], [shared])dnl
AS_IF([test x${with_open62541:+set} == xset -a "x$with_open62541" == xno],
[$3],
[test "x$with_open62541_]m4_defn([secnd])[" != xyes],
[_AX_OPEN62541_CHECK_LIB_1(m4_defn([first]), [$2],
[_AX_OPEN62541_CHECK_LIB_1(m4_defn([secnd]), [$2], [$3])])],
[_AX_OPEN62541_CHECK_LIB_1(m4_defn([secnd]), [$2],
[_AX_OPEN62541_CHECK_LIB_1(m4_defn([first]), [$2], [$3])])])dnl
m4_popdef([staticfirst], [first], [secnd])dnl
])# AX_OPEN62541_CHECK_LIB
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