--- pygtk-2.24.0/configure.ac~	2011-04-01 03:37:44.000000000 -0700
+++ pygtk-2.24.0/configure.ac	2019-08-30 11:39:24.238636644 -0700
@@ -77,7 +77,7 @@
 
 AM_PATH_PYTHON(2.3.5)
 
-AM_CHECK_PYTHON_HEADERS(,[AC_MSG_ERROR(could not find Python headers)])
+AM_CHECK_PYTHON_HEADERS(,AC_MSG_ERROR(could not find Python headers))
 
 AC_MSG_CHECKING([for PySignal_SetWakeupFd in Python.h])
 py_prefix=`$PYTHON -c "import sys; print sys.prefix"`