2021-11-15 17:37:51 +01:00
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# ===========================================================================
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# https://www.gnu.org/software/autoconf-archive/ax_zmq.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_ZMQ([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
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#
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# DESCRIPTION
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#
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# Test for the ZMQ libraries of a particular version (or newer). The
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# default version tested for is 4.0.0.
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#
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# The macro tests for ZMQ libraries in the library/include path, and, when
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# provided, also in the path given by --with-zmq.
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#
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# This macro calls:
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#
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# AC_SUBST(ZMQ_CPPFLAGS) / AC_SUBST(ZMQ_LDFLAGS) / AC_SUBST(ZMQ_LIBS)
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#
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# And sets:
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#
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# HAVE_ZMQ
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#
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# LICENSE
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#
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# Copyright (c) 2016 Jeroen Meijer <jjgmeijer@gmail.com>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 3
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AC_DEFUN([AX_ZMQ], [
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AC_ARG_WITH([zmq], [AS_HELP_STRING([--with-zmq=<prefix>],[ZMQ prefix directory])], [
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ZMQ_LDFLAGS="-L${with_zmq}/lib"
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ZMQ_CPPFLAGS="-I${with_zmq}/include"
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])
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HAVE_ZMQ=0
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if test "$with_zmq" != "no"; then
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LD_FLAGS="$LDFLAGS $ZMQ_LDFLAGS"
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CPPFLAGS="$CPPFLAGS $ZMQ_CPPFLAGS"
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AC_LANG_PUSH([C])
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AC_CHECK_HEADER(zmq.h, [zmq_h=yes], [zmq_h=no])
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AC_LANG_POP([C])
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if test "$zmq_h" = "yes"; then
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version=ifelse([$1], ,4.0.0,$1)
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AC_MSG_CHECKING([for ZMQ version >= $version])
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version=$(echo $version | tr '.' ',')
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AC_EGREP_CPP([version_ok], [
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#include <zmq.h>
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#if defined(ZMQ_VERSION) && ZMQ_VERSION >= ZMQ_MAKE_VERSION($version)
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version_ok
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#endif
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],[
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AC_MSG_RESULT(yes)
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2022-01-03 13:18:45 +01:00
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AC_CHECK_LIB([zmq],[zmq_send],[
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HAVE_ZMQ=1
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ZMQ_LIBS="-lzmq"
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],[
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AC_MSG_ERROR([libzmq.so not in LIBRARY_PATH])
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])
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2021-11-15 17:37:51 +01:00
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AC_SUBST(ZMQ_LDFLAGS)
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AC_SUBST(ZMQ_CPPFLAGS)
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AC_SUBST(ZMQ_LIBS)
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], AC_MSG_RESULT([no valid ZMQ version was found]))
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else
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AC_MSG_WARN([no valid ZMQ installation was found])
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fi
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if test $HAVE_ZMQ = 1; then
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# execute ACTION-IF-FOUND (if present):
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ifelse([$2], , :, [$2])
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else
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# execute ACTION-IF-NOT-FOUND (if present):
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ifelse([$3], , :, [$3])
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fi
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else
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AC_MSG_NOTICE([not checking for ZMQ])
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fi
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AC_DEFINE(HAVE_ZMQ,,[define if the ZMQ library is available])
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])
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