diff --git a/debian/qualify-clang.sh b/debian/qualify-clang.sh
index edd73be4..f8de5e60 100755
--- a/debian/qualify-clang.sh
+++ b/debian/qualify-clang.sh
@@ -11,7 +11,7 @@ DEB_HOST_ARCH=$(dpkg-architecture -qDEB_HOST_ARCH)
 
 LIST="libomp5-${VERSION}_${DETAILED_VERSION}_amd64.deb libomp-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb lldb-${VERSION}_${DETAILED_VERSION}_amd64.deb python3-lldb-${VERSION}_${DETAILED_VERSION}_amd64.deb libllvm${VERSION}_${DETAILED_VERSION}_amd64.deb llvm-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb liblldb-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb  libclang1-${VERSION}_${DETAILED_VERSION}_amd64.deb  libclang-common-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb  llvm-${VERSION}_${DETAILED_VERSION}_amd64.deb  liblldb-${VERSION}_${DETAILED_VERSION}_amd64.deb  llvm-${VERSION}-runtime_${DETAILED_VERSION}_amd64.deb lld-${VERSION}_${DETAILED_VERSION}_amd64.deb libfuzzer-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb libclang-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb libc++-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb libc++abi-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb libc++1-${VERSION}_${DETAILED_VERSION}_amd64.deb libc++abi1-${VERSION}_${DETAILED_VERSION}_amd64.deb clang-${VERSION}_${DETAILED_VERSION}_amd64.deb llvm-${VERSION}-tools_${DETAILED_VERSION}_amd64.deb clang-tools-${VERSION}_${DETAILED_VERSION}_amd64.deb clangd-${VERSION}_${DETAILED_VERSION}_amd64.deb libclang-cpp${VERSION}_${DETAILED_VERSION}_amd64.deb clang-tidy-${VERSION}_${DETAILED_VERSION}_amd64.deb libclang-cpp${VERSION}-dev_${DETAILED_VERSION}_amd64.deb libclc-${VERSION}_${DETAILED_VERSION}_all.deb libclc-${VERSION}-dev_${DETAILED_VERSION}_all.deb llvm-${VERSION}-linker-tools_${DETAILED_VERSION}_amd64.deb libunwind-${VERSION}_${DETAILED_VERSION}_amd64.deb libunwind-${VERSION}-dev_${DETAILED_VERSION}_amd64.deb"
 echo "To install everything:"
-echo "sudo apt --purge remove 'libomp5-*' 'libc++*dev' 'libc++*' 'python3-lldb-*'"
+echo "sudo apt --purge remove 'libomp5-*' 'libc++*dev' 'libc++*' 'python3-lldb-*' 'libunwind-*dev' 'libclc-*dev'"
 echo "sudo dpkg -i $LIST"
 L=""
 for f in $LIST; do
@@ -947,13 +947,13 @@ int main() {
 }
 EOF
 clang++-$VERSION -stdlib=libc++ -unwindlib=libunwind -rtlib=compiler-rt -static-libstdc++ -static-libgcc test.cpp  -lpthread -ldl -o test
-./test
+./test > /dev/null
 
 clang++-$VERSION -stdlib=libc++ -static-libstdc++ -fuse-ld=lld -l:libc++abi.a test.cpp -o test
-./test
+./test > /dev/null
 
 clang++-$VERSION -stdlib=libc++ -nostdlib++ test.cpp -l:libc++.a -l:libc++abi.a -pthread -o test
-./test
+./test > /dev/null
 
 # Bug 889832
 echo '#include <iostream>
@@ -1334,6 +1334,16 @@ if grep "LLVM IR bitcode" foo.log; then
     exit -2
 fi
 
+echo "
+from ctypes import *
+libclang='/usr/lib/llvm-$VERSION/lib/libclang-$VERSION.so.1'
+lib = CDLL(libclang)
+fun = lib.clang_getAddressSpace
+print(fun)
+" > foo.py
+python3 foo.py|grep _FuncPtr
+rm foo.py
+
 echo "Testing cmake build ..."
 
 if grep -q lit-cpuid /usr/lib/llvm-$VERSION/lib/cmake/llvm/LLVMExports*.cmake; then