.gitignores: Organize and clean up.

[catacomb] / .gitignore

diff --git a/.gitignore b/.gitignore
index 9c2b37d..3a32781 100644 (file)
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,22 @@
+## Pervasive build machinery.
 Makefile.in
-/aclocal.m4
-/configure
+
+## Additional kinds of object files.
+*.sage.py
+*.t
+*.to
+
+## Other common files.
 /COPYING.LIB
+
+## Top-level generated files.
+/aclocal.m4
 /autom4te.cache/
 /config/
+/configure
 /precomp/
-*.sage.py
-*.t
-*.to
+
+## m4 configuration macros installed by `aclocal' and `libtoolize'.
+/m4/ax_*.m4
+/m4/libtool.m4
+/m4/lt*.m4