mosquitto plugin: fixup flag handling

Split build flags in _LDFLAGS and _LIBS
Keep existing CPPFLAGS and LDFLAGS set from the command line.

This ensures we will pick up libmosquitto when running
./configure CPPFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib",
just like we do for other plugins.

diff --git a/configure.ac b/configure.ac
index 2a9b84a..0328b3b 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2668,13 +2668,13 @@ AM_CONDITIONAL(BUILD_WITH_LIBMONGOC, test "x$with_libmongoc" = "xyes")
 
 # --with-libmosquitto {{{
 with_libmosquitto_cppflags=""
-with_libmosquitto_libs="-lmosquitto"
+with_libmosquitto_ldflags=""
 AC_ARG_WITH(libmosquitto, [AS_HELP_STRING([--with-libmosquitto@<:@=PREFIX@:>@], [Path to libmosquitto.])],
 [
        if test "x$withval" != "xno" && test "x$withval" != "xyes"
        then
                with_libmosquitto_cppflags="-I$withval/include"
-               with_libmosquitto_libs="-L$withval/lib -lmosquitto"
+               with_libmosquitto_ldflags="-L$withval/lib"
                with_libmosquitto="yes"
        else
                with_libmosquitto="$withval"
@@ -2686,7 +2686,7 @@ AC_ARG_WITH(libmosquitto, [AS_HELP_STRING([--with-libmosquitto@<:@=PREFIX@:>@],
 if test "x$with_libmosquitto" = "xyes"
 then
        SAVE_CPPFLAGS="$CPPFLAGS"
-       CPPFLAGS="$with_libmosquitto_cppflags"
+       CPPFLAGS="$CPPFLAGS $with_libmosquitto_cppflags"
 
        AC_CHECK_HEADERS(mosquitto.h, [with_libmosquitto="yes"], [with_libmosquitto="no (mosquitto.h not found)"])
 
@@ -2696,8 +2696,8 @@ if test "x$with_libmosquitto" = "xyes"
 then
        SAVE_LDFLAGS="$LDFLAGS"
        SAVE_CPPFLAGS="$CPPFLAGS"
-       LDFLAGS="$with_libmosquitto_libs"
-       CPPFLAGS="$with_libmosquitto_cppflags"
+       LDFLAGS="$LDFLAGS $with_libmosquitto_ldflags"
+       CPPFLAGS="$CPPFLAGS $with_libmosquitto_cppflags"
 
        AC_CHECK_LIB(mosquitto, mosquitto_connect, [with_libmosquitto="yes"], [with_libmosquitto="no (libmosquitto not found)"])
 
@@ -2707,8 +2707,10 @@ fi
 if test "x$with_libmosquitto" = "xyes"
 then
        BUILD_WITH_LIBMOSQUITTO_CPPFLAGS="$with_libmosquitto_cppflags"
-       BUILD_WITH_LIBMOSQUITTO_LIBS="$with_libmosquitto_libs"
+       BUILD_WITH_LIBMOSQUITTO_LDFLAGS="$with_libmosquitto_ldflags"
+       BUILD_WITH_LIBMOSQUITTO_LIBS="-lmosquitto"
        AC_SUBST(BUILD_WITH_LIBMOSQUITTO_CPPFLAGS)
+       AC_SUBST(BUILD_WITH_LIBMOSQUITTO_LDFLAGS)
        AC_SUBST(BUILD_WITH_LIBMOSQUITTO_LIBS)
 fi
 # }}}

diff --git a/src/Makefile.am b/src/Makefile.am
index 6267a31..9c1e32f 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -643,8 +643,8 @@ endif
 if BUILD_PLUGIN_MQTT
 pkglib_LTLIBRARIES += mqtt.la
 mqtt_la_SOURCES = mqtt.c
-mqtt_la_LDFLAGS = $(PLUGIN_LDFLAGS)
 mqtt_la_CPPFLAGS = $(AM_CPPFLAGS) $(BUILD_WITH_LIBMOSQUITTO_CPPFLAGS)
+mqtt_la_LDFLAGS = $(PLUGIN_LDFLAGS) $(BUILD_WITH_LIBMOSQUITTO_LDFLAGS)
 mqtt_la_LIBADD = $(BUILD_WITH_LIBMOSQUITTO_LIBS)
 endif