[Qemu-devel] [PATCH qemu] configure/fdt: Use more strict test for libfdt version

[Alexey Kardashevskiy <aik@ozlabs.ru>]

The libfdt installed in the system is preferred to the dtc submodule by
default. The recent libfdt update added a new symbol - fdt_check_full -
and this breaks compile if there is an older libfdt installed in
the system.

This changes the test to force ./configure into using newer libfdt.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index 74e313a..7e16a6c 100755
--- a/configure
+++ b/configure
@@ -3826,7 +3826,7 @@ if test "$fdt" != "no" ; then
   cat > $TMPC << EOF
 #include <libfdt.h>
 #include <libfdt_env.h>
-int main(void) { fdt_first_subnode(0, 0); return 0; }
+int main(void) { fdt_check_full(NULL, 0); return 0; }
 EOF
   if compile_prog "" "$fdt_libs" ; then
     # system DTC is good - use it
-- 
2.17.1