Fix enable-asan with C++ buildtest

the following config:

./config no-shared enable-asan enable-buildtest-c++ enable-external-tests

fails to build with unresolved asan symbols when linking
test/ossl_shim/ossl_shim

Fixed by passing all sanitizer-flags to cxxflags.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16434)

1 files changed, 3 insertions, 0 deletions

diff --git a/Configure b/Configure
index b286dd0678..faf57b155a 100755
--- a/Configure
+++ b/Configure
@@ -1304,16 +1304,19 @@ if ($disabled{"dynamic-engine"}) {
 
 unless ($disabled{asan}) {
     push @{$config{cflags}}, "-fsanitize=address";
+    push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
 }
 
 unless ($disabled{ubsan}) {
     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
     # platforms.
     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
+    push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all" if $config{CXX};
 }
 
 unless ($disabled{msan}) {
   push @{$config{cflags}}, "-fsanitize=memory";
+  push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
 }
 
 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}