+# ac_cv_func_clock_gettime=no avoids having clock_gettime(CLOCK_SGI_CYCLE, &t)
+# being used. It's not supported on Android but fails at runtime and, fftw
+# does not check the return value so gets bogus values.
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="--enable-threads ac_cv_func_clock_gettime=no"