librsvg: use suppressions file instead of disabling all leak checks

Author: correctmost

projects/librsvg/build.sh

@@ -93,6 +93,9 @@ cp target/x86_64-unknown-linux-gnu/release/render_document "$OUT/"
 # Copy options files for fuzz targets
 cp "$SRC"/*.options "$OUT/"
 
+# Create suppressions file for fuzz targets
+echo "leak:FcPatternObjectInsertElt" > "$OUT/lsan.supp"
+
 # Build a seed corpus consisting of all the SVGs from the librsvg repo
 CORPUS_DIR="$WORK/corpus"
 mkdir -p "$CORPUS_DIR"

projects/librsvg/render_document.options

@@ -1,8 +1,4 @@
+[lsan]
 # Suppress spurious leak reports:
 # https://gnome.pages.gitlab.gnome.org/librsvg/devel-docs/memory_leaks.html
-
-[asan]
-detect_leaks = 0
-
-[libfuzzer]
-detect_leaks = 0
+suppressions = lsan.supp