util: clixon_util_stream requires libcurl

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

configure

@@ -643,6 +643,7 @@ HAVE_HTTP1
 HAVE_LIBNGHTTP2
 enable_netsnmp
 with_restconf
+with_curl
 LINKAGE
 LIBSTATIC_SUFFIX
 SH_SUFFIX
@@ -5040,6 +5041,9 @@ fi
 
 $as_echo "#define CLIXON_PUBLISH_STREAMS 1" >>confdefs.h
 
+   with_curl=yes
+else
+   with_curl=''
 fi
 
 for ac_header in cligen/cligen.h

configure.ac

@@ -114,6 +114,7 @@ AC_SUBST(LIBS)
 AC_SUBST(SH_SUFFIX)
 AC_SUBST(LIBSTATIC_SUFFIX)
 AC_SUBST(LINKAGE)
+AC_SUBST(with_curl)
 AC_SUBST(with_restconf)  # Set to native or fcgi -> compile apps/restconf
 AC_SUBST(enable_netsnmp) # Enable build of apps/snmp
 AC_SUBST(HAVE_LIBNGHTTP2,false) # consider using neutral constant such as with-http2
@@ -228,6 +229,9 @@ if test "$ac_enable_publish" = "yes"; then
    AC_CHECK_HEADERS(curl.h,[], AC_MSG_ERROR([curl missing]))	
    AC_CHECK_LIB(curl, curl_global_init,, AC_MSG_ERROR([libcurl missing]))
    AC_DEFINE(CLIXON_PUBLISH_STREAMS, 1, [Enable publish of notification streams using SSE and curl])
+   with_curl=yes
+else
+   with_curl=''
 fi
 
 AC_CHECK_HEADERS(cligen/cligen.h,, AC_MSG_ERROR([CLIgen missing. Try: git clone https://github.com/clicon/cligen.git]))

util/Makefile.in

@@ -104,7 +104,9 @@ APPSRC   += clixon_util_dispatcher.c
 APPSRC   += clixon_netconf_ssh_callhome.c
 APPSRC   += clixon_netconf_ssh_callhome_client.c
 ifdef with_restconf
-APPSRC   += clixon_util_stream.c # Needs curl
+ifdef with_libcurl
+APPSRC   += clixon_util_stream.c
+endif
 ifeq ($(with_restconf), native)
 APPSRC   += clixon_restconf_callhome_client.c
 endif