[vlc-devel] [PATCH] configure: do not sanitize vptr

[Rémi Denis-Courmont]

This is notoriously broken in UBSan, causing a lot of false positives
with TagLib.
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index acbee6c0b1..57c2f091f3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1037,6 +1037,9 @@ AS_VAR_IF(with_sanitizer, no, [], [
         AX_APPEND_COMPILE_FLAGS([-fPIE -pie])
         AX_APPEND_COMPILE_FLAGS([-fPIE -pie], [CXXFLAGS])
     ])
+    AS_IF([test -z "${with_sanitizer##*undefined*}" ], [
+        AX_APPEND_COMPILE_FLAGS([-fno-sanitize=vptr], [CXXFLAGS])
+    ])
 ])
 
 dnl
-- 
2.15.1