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-rw-r--r--usrp2/firmware/config/grc_usrp2_firmware.m46
1 files changed, 6 insertions, 0 deletions
diff --git a/usrp2/firmware/config/grc_usrp2_firmware.m4 b/usrp2/firmware/config/grc_usrp2_firmware.m4
index 7f1f9a796..53ff03ce4 100644
--- a/usrp2/firmware/config/grc_usrp2_firmware.m4
+++ b/usrp2/firmware/config/grc_usrp2_firmware.m4
@@ -17,6 +17,12 @@ dnl along with GNU Radio; see the file COPYING. If not, write to
dnl the Free Software Foundation, Inc., 51 Franklin Street,
dnl Boston, MA 02110-1301, USA.
+dnl Fix 2.64 cross compile detection for AVR and RTEMS
+dnl by not trying to compile fopen.
+m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64],
+ [m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77],
+ [m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)], m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])])
+
AC_DEFUN([GRC_USRP2_FIRMWARE],[
dnl we use --enable-usrp2-firmware to enable this
GRC_ENABLE(usrp2-firmware)