g.extension: do not check make etc. for -a (backport https://trac.osgeo.org/grass/changeset/66029 and part of https://trac.osgeo.org/grass/changeset/65711)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@66030 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/g.extension/g.extension.py

@@ -115,6 +115,12 @@
 #% suppress_required: yes
 #%end
 
+#%rules
+#% required: extension, -l, -c, -g, -a
+#% exclusive: extension, -l, -c, -g, -a
+#%end
+
+
 import os
 import sys
 import re
@@ -1024,7 +1030,7 @@ def update_manual_page(module):
 
 def main():
     # check dependecies
-    if sys.platform != "win32":
+    if not flags['a'] and sys.platform != "win32":
         check_progs()
 
     # manage proxies