codec/fr: Add support for encoding/decoding using libgsm
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/configure.ac b/configure.ac
index c09b27f..43e13ba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,8 +20,19 @@
AC_PROG_CC
# Checks for libraries.
+ # libosmocore (codec module)
PKG_CHECK_MODULES(LIBOSMOCODEC, libosmocodec >= 0.1.25)
+ # libgsm for FR decoding
+found_libgsm=yes
+AC_CHECK_HEADERS(gsm/gsm.h, ,
+ [AC_CHECK_HEADERS(gsm.h, ,found_libgsm=no)])
+ AC_CHECK_LIB(gsm, gsm_create, LIBGSM_LIBS="-lgsm", found_libgsm=no)
+if test "$found_libgsm" = yes; then
+ AC_DEFINE(HAVE_LIBGSM, 1, [Define to 1 if libgsm is available])
+fi
+AC_SUBST(LIBGSM_LIBS)
+
# Checks for header files.
AC_CHECK_HEADERS([stdint.h stdlib.h string.h unistd.h])