From 222b3861024fbe1d40e3c97cfa65b5ce3243ba3d Mon Sep 17 00:00:00 2001
From: Philippe Antoine <contact@catenacyber.fr>
Date: Wed, 9 Sep 2020 16:05:56 +0200
Subject: [PATCH] rust: rebuilds std when building fuzzers

so as to have MSAN working
---
 configure.ac     | 1 +
 rust/Makefile.am | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 363fba5181..e9f4f91ad7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -475,6 +475,7 @@
     AC_ARG_ENABLE(fuzztargets,
         AS_HELP_STRING([--enable-fuzztargets], [Enable fuzz targets]),[enable_fuzztargets=$enableval],[enable_fuzztargets=no])
     AM_CONDITIONAL([BUILD_FUZZTARGETS], [test "x$enable_fuzztargets" = "xyes"])
+    AM_CONDITIONAL([RUST_BUILD_STD], [test "x$enable_fuzztargets" = "xyes" && echo $rust_compiler_version | grep -q nightly])
     AC_PROG_CXX
     AS_IF([test "x$enable_fuzztargets" = "xyes"], [
         AC_DEFINE([FUZZ], [1], [Fuzz targets are enabled])
diff --git a/rust/Makefile.am b/rust/Makefile.am
index 843cac5c79..446a898131 100644
--- a/rust/Makefile.am
+++ b/rust/Makefile.am
@@ -7,9 +7,13 @@ if HAVE_CARGO_VENDOR
 EXTRA_DIST +=	vendor
 endif
 
+if RUST_BUILD_STD
+RELEASE = -Z build-std
+else
 if !DEBUG
 RELEASE = --release
 endif
+endif
 
 if HAVE_LUA
 RUST_FEATURES +=	lua $(LUA_INT8)
-- 
2.47.2