FS-9670: add autodetection of opencore-amrnb lib and "--disable-amr" option to configure script

configure.ac

@@ -1926,7 +1926,17 @@ AM_CONDITIONAL(ISMAC, [test `uname -s` = Darwin])
 AM_CONDITIONAL(ISFREEBSD, [test `uname -s` = FreeBSD])
 AM_CONDITIONAL(IS64BITLINUX, [test `uname -m` = x86_64])
 
-AM_CONDITIONAL(HAVE_AMR, [ test -d ${switch_srcdir}/libs/amr ])
+AC_ARG_ENABLE(amr,
+[AC_HELP_STRING([--disable-amr],[build without opencore-amrnb])],[enable_amr="$enable_amr"],[enable_amr="yes"])
+
+if test x"$enable_amr" = x"yes" ; then
+	PKG_CHECK_MODULES([AMR], [opencore-amrnb >= 0.1.0],[
+		AM_CONDITIONAL([HAVE_AMR],[true])],[
+		AC_MSG_RESULT([no]); AM_CONDITIONAL([HAVE_AMR],[false])])
+else
+	AM_CONDITIONAL([HAVE_AMR],[false])
+fi
+
 AM_CONDITIONAL(HAVE_AMRWB, [ test -d ${switch_srcdir}/libs/amrwb ])
 AM_CONDITIONAL(HAVE_G723_1, [ test -d ${switch_srcdir}/libs/libg723_1 ])
 AM_CONDITIONAL(HAVE_G729, [ test -d ${switch_srcdir}/libs/libg729 ])

src/mod/codecs/mod_amr/Makefile.am

 include $(top_srcdir)/build/modmake.rulesam
 MODNAME=mod_amr
-AMR_DIR=$(switch_srcdir)/libs/amr
-AMR_BUILDDIR=$(switch_builddir)/libs/amr
-AMR_A=$(AMR_BUILDDIR)/libamr.a
 
 mod_LTLIBRARIES = mod_amr.la
 if HAVE_AMR
@@ -10,15 +7,15 @@ mod_amr_la_SOURCES  = mod_amr.c bitshift.c amr_be.c
 else
 mod_amr_la_SOURCES  = mod_amr.c 
 endif
+
 mod_amr_la_CFLAGS   = $(AM_CFLAGS)
 mod_amr_la_LIBADD   = $(switch_builddir)/libfreeswitch.la
 mod_amr_la_LDFLAGS  = -avoid-version -module -no-undefined -shared
 
 if HAVE_AMR
 # install AMR library opencore-amrnb (check README)
-mod_amr_la_CFLAGS += -I/usr/include/opencore-amrnb
-mod_amr_la_LIBADD += -lopencore-amrnb
-mod_amr_la_CFLAGS += 
+mod_amr_la_CFLAGS += $(AMR_CFLAGS) 
+mod_amr_la_LIBADD += $(AMR_LIBS) 
 else
 mod_amr_la_CFLAGS += -DAMR_PASSTHROUGH
 endif

src/mod/codecs/mod_amr/mod_amr.c

@@ -27,6 +27,7 @@
  * Brian K. West <brian@freeswitch.org>
  * Dragos Oancea <dragos.oancea@athonet.com>
  * Federico Favaro <federico.favaro@athonet.com>
+ * Marco Sinibaldi <marco.sinibaldi@athonet.com>
  *
  * The amr codec itself is not distributed with this module.
  *
@@ -40,8 +41,8 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_amr_load);
 SWITCH_MODULE_DEFINITION(mod_amr, mod_amr_load, NULL, NULL);
 
 #ifndef AMR_PASSTHROUGH
-#include "interf_enc.h"
-#include "interf_dec.h"
+#include "opencore-amrnb/interf_enc.h"
+#include "opencore-amrnb/interf_dec.h"
 
 #include "bitshift.h"
 #include "amr_be.h"