Specify _FORTIFY_SOURCE=3 (#2168)

This can find more kinds of buffer overflows: https://developers.redhat.com/articles/2022/09/17/gccs-new-fortification-level
s3fs-fuse · May 27, 2023 · e7a364d · e7a364d
1 parent 161be3f
commit e7a364d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/configure.ac b/configure.ac
@@ -34,7 +34,7 @@ AC_CHECK_HEADERS([attr/xattr.h])
 AC_CHECK_HEADERS([sys/extattr.h])
 AC_CHECK_FUNCS([fallocate])
 
-CXXFLAGS="$CXXFLAGS -Wall -fno-exceptions -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2"
+CXXFLAGS="$CXXFLAGS -Wall -fno-exceptions -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=3"
 
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