fix makefile syntax errors

src/mod/codecs/mod_g729/Makefile.am

@@ -3,7 +3,7 @@ MODNAME=mod_g729
 
 G729_DIR=$(switch_srcdir)/libs/libg729
 G729_BUILDDIR=$(switch_builddir)/libs/libg729
-G729_A=$(BUILDDIR)/.libs/libg729.a
+G729_A=$(G729_BUILDDIR)/.libs/libg729.a
 
 mod_LTLIBRARIES = mod_g729.la
 mod_g729_la_SOURCES  = mod_g729.c
@@ -13,7 +13,7 @@ mod_g729_la_LDFLAGS  = -avoid-version -module -no-undefined -shared
 
 if HAVE_G729
 mod_g729_la_CFLAGS += -I$(G729_DIR)/src/include
-mod_g729_la_LIBADD +- $(G729_A)
+mod_g729_la_LIBADD += $(G729_A)
 else
 mod_g729_la_CFLAGS += -DG729_PASSTHROUGH
 endif