[Qemu-devel] [PATCH 07/11] configure: Fix compile warning in PNG test

[Peter Maydell <peter.maydell@linaro.org>]

Fix compile warning (variable 'png_ptr' set but not used) in the
PNG detection test code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 configure |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/configure b/configure
index aced52e..784325a 100755
--- a/configure
+++ b/configure
@@ -1727,7 +1727,7 @@ cat > $TMPC <<EOF
 int main(void) {
     png_structp png_ptr;
     png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
-    return 0;
+    return png_ptr != 0;
 }
 EOF
   if $pkg_config libpng --modversion >/dev/null 2>&1; then
-- 
1.7.5.4