From a2ebc97169fae2c5e19a5cedf4f8a5dbba51e7e5 Mon Sep 17 00:00:00 2001
From: Vincent Rabaud <vrabaud@google.com>
Date: Thu, 29 Feb 2024 15:47:21 +0100
Subject: [PATCH] Apend to variables

---
 tests/oss-fuzz/build.sh | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tests/oss-fuzz/build.sh b/tests/oss-fuzz/build.sh
index 984436afb3..7af3cc01e6 100755
--- a/tests/oss-fuzz/build.sh
+++ b/tests/oss-fuzz/build.sh
@@ -43,7 +43,7 @@ set -eu
 DAV1D_EXTRA_FLAGS=""
 if [ "$SANITIZER" != "coverage" ] && [ "$SANITIZER" != "introspector" ]
 then
-  DAV1D_EXTRA_FLAGS="-Db_sanitize=$SANITIZER -Db_lundef=false"
+  DAV1D_EXTRA_FLAGS="${DAV1D_EXTRA_FLAGS} -Db_sanitize=$SANITIZER -Db_lundef=false"
 fi
 if [ "$SANITIZER" == "memory" ]
 then
@@ -72,12 +72,11 @@ cd ext && bash aom.cmd && bash dav1d.cmd && bash fuzztest.cmd && bash libjpeg.cm
 # build libavif
 mkdir build
 cd build
+EXTRA_CMAKE_FLAGS=""
 if [ "$FUZZING_ENGINE" == "libfuzzer" ]
 then
   CXXFLAGS="${CXXFLAGS} -DFUZZTEST_COMPATIBILITY_MODE"
-  EXTRA_CMAKE_FLAGS="-DAVIF_ENABLE_FUZZTEST=ON -DFUZZTEST_COMPATIBILITY_MODE=libfuzzer"
-else
-  EXTRA_CMAKE_FLAGS=""
+  EXTRA_CMAKE_FLAGS="${EXTRA_CMAKE_FLAGS} -DAVIF_ENABLE_FUZZTEST=ON -DFUZZTEST_COMPATIBILITY_MODE=libfuzzer"
 fi
 cmake .. -G Ninja -DBUILD_SHARED_LIBS=OFF -DAVIF_CODEC_AOM=LOCAL -DAVIF_CODEC_DAV1D=LOCAL \
       -DAVIF_CODEC_AOM_DECODE=ON -DAVIF_CODEC_AOM_ENCODE=ON \