add clean_core target

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5788 d0543943-73ff-0310-b7d9-9358b9ac24b2

Makefile.am

@@ -60,6 +60,7 @@ libs/libteletone/src/libteletone_detect.c\
 libs/libteletone/src/libteletone_generate.c
 
 
+
 library_includedir      = $(PREFIX)/include
 
 library_include_HEADERS = \
@@ -139,6 +140,8 @@ libfreeswitch_la_LDFLAGS     += -lodbc
 endif
 
 
+
+
 libs/libedit/Makefile:
 	cd libs/libedit && ./configure CFLAGS="-D_XOPEN_SOURCE=600 -D_BSD_SOURCE=1" --disable-shared --with-pic
 libs/libedit/src/.libs/libedit.a: libs/libedit/Makefile
@@ -224,6 +227,8 @@ endif
 core:
 	$(MAKE) $(AM_MAKEFLAGS) libfreeswitch.la
 
+clean_core: clean-libLTLIBRARIES
+
 install_core: install-libLTLIBRARIES
 
 core_install: install_core