diff --git a/pypy.spec b/pypy.spec
index cd225b9..cfb219f 100644
--- a/pypy.spec
+++ b/pypy.spec
@@ -181,6 +181,10 @@ BuildRequires: python-devel
 %endif
 
 BuildRequires:  libffi-devel
+BuildRequires:  tcl-devel
+BuildRequires:  tk-devel
+
+BuildRequires:  sqlite-devel
 
 BuildRequires:  zlib-devel
 BuildRequires:  bzip2-devel
@@ -577,6 +581,10 @@ mkdir -p %{buildroot}/%{pypyprefix}/site-packages
   %{buildroot}/%{_bindir}/pypy \
   0
 
+%{goal_dir}/pypy -c 'import _tkinter'
+%{goal_dir}/pypy -c 'import _sqlite3'
+%{goal_dir}/pypy -c 'import _curses'
+%{goal_dir}/pypy -c 'import syslog'
 
 # Header files for C extension modules.
 # Upstream's packaging process (pypy/tool/release/package.py)