cygwin: Link many libraries with -no-undefined to create a dll
Only the Gb library relies on having undefined references to a
symbol that needs to be provided by the host application. For
all other libraries we can link with -no-undefined.
diff --git a/src/codec/Makefile.am b/src/codec/Makefile.am
index 6110cbf..f4dec62 100644
--- a/src/codec/Makefile.am
+++ b/src/codec/Makefile.am
@@ -7,4 +7,4 @@
lib_LTLIBRARIES = libosmocodec.la
libosmocodec_la_SOURCES = gsm610.c gsm620.c gsm660.c gsm690.c
-libosmocodec_la_LDFLAGS = -version-info $(LIBVERSION)
+libosmocodec_la_LDFLAGS = -version-info $(LIBVERSION) -no-undefined