1 files changed, 39 insertions, 0 deletions
diff --git a/doc/tools/coqrst/checkdeps.py b/doc/tools/coqrst/checkdeps.py
new file mode 100644
index 00000000..11f95c4e
--- /dev/null
+++ b/doc/tools/coqrst/checkdeps.py
@@ -0,0 +1,39 @@
+##########################################################################
+##         #   The Coq Proof Assistant / The Coq Development Team       ##
+##  v      #   INRIA, CNRS and contributors - Copyright 1999-2018       ##
+## <O___,, #       (see CREDITS file for the list of authors)           ##
+##   \VV/  ###############################################################
+##    //   #    This file is distributed under the terms of the         ##
+##         #     GNU Lesser General Public License Version 2.1          ##
+##         #     (see LICENSE file for the text of the license)         ##
+##########################################################################
+from __future__ import print_function
+import sys
+
+def eprint(*args, **kwargs):
+    print(*args, file=sys.stderr, **kwargs)
+
+def missing_dep(dep):
+    eprint('Cannot find %s (needed to build documentation)' % dep)
+    eprint('You can run `pip3 install %s` to install it.' % dep)
+    sys.exit(1)
+
+try:
+    import sphinx_rtd_theme
+except:
+    missing_dep('sphinx_rtd_theme')
+
+try:
+    import pexpect
+except:
+    missing_dep('pexpect')
+
+try:
+    import antlr4
+except:
+    missing_dep('antlr4-python3-runtime')
+
+try:
+    import bs4
+except:
+    missing_dep('beautifulsoup4')