[qemu-xen staging] configure: do not clobber CFLAGS with --enable-fuzzing

[patchbot@xxxxxxx]

commit 0ab6c2384ccae8968517f6883897509cd5f51a40
Author:     Alexander Bulekov <alxndr@xxxxxx>
AuthorDate: Wed Jul 8 16:01:03 2020 -0400
Commit:     Thomas Huth <thuth@xxxxxxxxxx>
CommitDate: Mon Jul 13 11:40:52 2020 +0200

    configure: do not clobber CFLAGS with --enable-fuzzing
    
    When configuring with --enable-fuzzing, we overwrote the CFLAGS
    added by all the preceding checks. Instead of overwriting CFLAGS, append
    the ones we need.
    
    Fixes: adc28027ff ("fuzz: add configure flag --enable-fuzzing")
    Reported-by: Li Qiang <liq3ea@xxxxxxx>
    Signed-off-by: Alexander Bulekov <alxndr@xxxxxx>
    Message-Id: <20200708200104.21978-2-alxndr@xxxxxx>
    Tested-by: Li Qiang <liq3ea@xxxxxxxxx>
    Reviewed-by: Li Qiang <liq3ea@xxxxxxxxx>
    Reviewed-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
    Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx>
---
 configure | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure b/configure
index f59418f6de..69a89113f7 100755
--- a/configure
+++ b/configure
@@ -7926,7 +7926,7 @@ if test "$fuzzing" = "yes" ; then
   if test "$have_fuzzer" = "yes"; then
     FUZZ_LDFLAGS=" -fsanitize=address,fuzzer"
     FUZZ_CFLAGS=" -fsanitize=address,fuzzer"
-    CFLAGS=" -fsanitize=address,fuzzer-no-link"
+    CFLAGS="$CFLAGS -fsanitize=address,fuzzer-no-link"
   else
     error_exit "Your compiler doesn't support -fsanitize=address,fuzzer"
     exit 1
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#staging