diff options
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/ax_zmq.m4 | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/m4/ax_zmq.m4 b/m4/ax_zmq.m4 new file mode 100644 index 0000000..752dc54 --- /dev/null +++ b/m4/ax_zmq.m4 @@ -0,0 +1,86 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_zmq.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_ZMQ([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +# +# DESCRIPTION +# +# Test for the ZMQ libraries of a particular version (or newer). The +# default version tested for is 4.0.0. +# +# The macro tests for ZMQ libraries in the library/include path, and, when +# provided, also in the path given by --with-zmq. +# +# This macro calls: +# +# AC_SUBST(ZMQ_CPPFLAGS) / AC_SUBST(ZMQ_LDFLAGS) / AC_SUBST(ZMQ_LIBS) +# +# And sets: +# +# HAVE_ZMQ +# +# LICENSE +# +# Copyright (c) 2016 Jeroen Meijer <jjgmeijer@gmail.com> +# +# 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 + +AC_DEFUN([AX_ZMQ], [ + AC_ARG_WITH([zmq], [AS_HELP_STRING([--with-zmq=<prefix>],[ZMQ prefix directory])], [ + ZMQ_LDFLAGS="-L${with_zmq}/lib" + ZMQ_CPPFLAGS="-I${with_zmq}/include" + ]) + + HAVE_ZMQ=0 + if test "$with_zmq" != "no"; then + + LD_FLAGS="$LDFLAGS $ZMQ_LDFLAGS" + CPPFLAGS="$CPPFLAGS $ZMQ_CPPFLAGS" + + AC_LANG_SAVE + AC_LANG_C + AC_CHECK_HEADER(zmq.h, [zmq_h=yes], [zmq_h=no]) + AC_LANG_RESTORE + + if test "$zmq_h" = "yes"; then + version=ifelse([$1], ,4.0.0,$1) + AC_MSG_CHECKING([for ZMQ version >= $version]) + version=$(echo $version | tr '.' ',') + AC_EGREP_CPP([version_ok], [ +#include <zmq.h> +#if defined(ZMQ_VERSION) && ZMQ_VERSION >= ZMQ_MAKE_VERSION($version) + version_ok +#endif + ],[ + AC_MSG_RESULT(yes) + HAVE_ZMQ=1 + ZMQ_LIBS="-lzmq" + AC_SUBST(ZMQ_LDFLAGS) + AC_SUBST(ZMQ_CPPFLAGS) + AC_SUBST(ZMQ_LIBS) + ], AC_MSG_RESULT([no valid ZMQ version was found])) + else + AC_MSG_WARN([no valid ZMQ installation was found]) + fi + + if test $HAVE_ZMQ = 1; then + # execute ACTION-IF-FOUND (if present): + ifelse([$2], , :, [$2]) + else + # execute ACTION-IF-NOT-FOUND (if present): + ifelse([$3], , :, [$3]) + fi + else + AC_MSG_NOTICE([not checking for ZMQ]) + fi + + AC_DEFINE(HAVE_ZMQ,,[define if the ZMQ library is available]) +]) |