That's enough config.m4 for OSX, at least...

config.m4

@@ -14,14 +14,15 @@ if test "$PHP_LIBMOSQUITTO" != "no"; then
 
  # --with-libmosquitto -> check with-path
  SEARCH_PATH="/usr/local /usr" # you might want to change this
- SEARCH_FOR="/include/libmosquitto.h" # you most likely want to change this
+ SEARCH_FOR="/include/mosquitto.h" # you most likely want to change this
  if test -r $PHP_LIBMOSQUITTO/$SEARCH_FOR; then # path given as parameter
  LIBMOSQUITTO_DIR=$PHP_LIBMOSQUITTO
  else # search default path list
  AC_MSG_CHECKING([for libmosquitto files in default path])
  for i in $SEARCH_PATH ; do
  if test -r $i/$SEARCH_FOR; then
  LIBMOSQUITTO_DIR=$i
+ AC_MSG_CHECKING($LIBMOSQUITTO_DIR)
  AC_MSG_RESULT(found in $i)
  fi
  done
@@ -36,18 +37,9 @@ if test "$PHP_LIBMOSQUITTO" != "no"; then
  PHP_ADD_INCLUDE($LIBMOSQUITTO_DIR/include)
 
  # --with-libmosquitto -> check for lib and symbol presence
- LIBNAME=libmosquitto # you may want to change this
- LIBSYMBOL=mosquitto_init # you most likely want to change this 
-
- PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,
- [
- PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $LIBMOSQUITTO_DIR/lib, LIBMOSQUITTO_SHARED_LIBADD)
- AC_DEFINE(HAVE_LIBMOSQUITTOLIB,1,[ ])
- ],[
- AC_MSG_ERROR([wrong libmosquitto lib version or lib not found])
- ],[
- -L$LIBMOSQUITTO_DIR/lib -lm
- ])
+ LIBNAME=mosquitto # you may want to change this
+
+ PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $LIBMOSQUITTO_DIR/lib, LIBMOSQUITTO_SHARED_LIBADD)
 
  PHP_SUBST(LIBMOSQUITTO_SHARED_LIBADD)