+# Configure options (5.9.20150530)
+# --disable-getcap --disable-leaks --disable-root-environ --disable-termcap --enable-getcap --enable-getcap-cache --enable-hard-tabs --enable-termcap --with-termlib --with-trace
+# --disable-getcap --disable-leaks --disable-root-environ --disable-termcap --enable-hard-tabs --enable-interop --with-termlib --with-trace
+# --disable-getcap --disable-leaks --disable-root-environ --disable-termcap --enable-hard-tabs --enable-sp-funcs --with-broken_linker --with-hashed-db --with-termlib --with-trace
+# --disable-getcap --disable-leaks --disable-root-environ --disable-termcap --enable-hard-tabs --enable-sp-funcs --with-termlib --with-trace
+# --disable-getcap --disable-leaks --disable-root-environ --disable-termcap --enable-hard-tabs --enable-wgetch-events --with-hashed-db --with-termlib --with-ticlib --with-trace
+# --disable-getcap --disable-leaks --disable-root-environ --disable-termcap --enable-hard-tabs --with-broken_linker --with-termlib --with-ticlib --with-trace
+# Configure options (6.0.20161029)