Ungetlib libmemcached

Tested with several libmemcached versions between 0.31 and
1.0.18. Unfortunately the API is extremely volatile and awkward to
use. Packaging scripts still need addressing.

FS-353

src/mod/applications/mod_memcache/Makefile.am

@@ -1,30 +1,17 @@
 include $(top_srcdir)/build/modmake.rulesam
 MODNAME=mod_memcache
-MEMCACHED=libmemcached-0.32
-MEMCACHED_DIR=$(switch_srcdir)/libs/$(MEMCACHED)
-MEMCACHED_BUILDDIR=$(switch_builddir)/libs/$(MEMCACHED)
 
-MEMCACHEDLA=$(MEMCACHED_BUILDDIR)/libmemcached/libmemcached.la
+if HAVE_MEMCACHED
 
 mod_LTLIBRARIES = mod_memcache.la
 mod_memcache_la_SOURCES  = mod_memcache.c
-mod_memcache_la_CFLAGS   = $(AM_CFLAGS) -I$(MEMCACHED_DIR) -I$(MEMCACHED_BUILDDIR)
-mod_memcache_la_LIBADD   = $(switch_builddir)/libfreeswitch.la $(MEMCACHEDLA)
+mod_memcache_la_CFLAGS   = $(AM_CFLAGS) $(MEMCACHED_CFLAGS)
+mod_memcache_la_LIBADD   = $(switch_builddir)/libfreeswitch.la $(MEMCACHED_LIBS)
 mod_memcache_la_LDFLAGS  = -avoid-version -module -no-undefined -shared
 
-MY_DEFAULT_ARGS=--build=$(build) --host=$(host) --target=$(target) --disable-shared --with-pic
-
-BUILT_SOURCES=$(MEMCACHEDLA)
-
-$(MEMCACHED_DIR):
-	$(GETLIB) $(MEMCACHED).tar.gz
-
-$(MEMCACHED_BUILDDIR)/Makefile: $(MEMCACHED_DIR)
-	mkdir -p $(MEMCACHED_BUILDDIR)
-	echo $(MY_DEFAULT_ARGS)
-	cd $(MEMCACHED_BUILDDIR) && $(DEFAULT_VARS) $(MEMCACHED_DIR)/configure $(MY_DEFAULT_ARGS) --with-memcached=no --srcdir=$(MEMCACHED_DIR) CPPFLAGS= LDFLAGS=
-	$(TOUCH_TARGET)
-
-$(MEMCACHEDLA): $(MEMCACHED_BUILDDIR)/Makefile
-	cd $(MEMCACHED_BUILDDIR) && $(MAKE)
-	$(TOUCH_TARGET)
+else
+install: error
+all: error
+error:
+	$(error You must install libmemcached-dev to build mod_memcache)
+endif