INSTALL.m4: Add note about autogen.sh

Based on patch by Fritz Zaucker

diff --git a/INSTALL.md b/INSTALL.md
index 1e397d8f7fb9ffe0485e76337ea5ef459e811939..08615ff370205b234288a3eb3ae053f80c630231 100644 (file)
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -10,6 +10,7 @@ sudo make install
 ```
 
 is enough. This installs Dovecot under /usr/local.
+When building from git, you need to run `./autogen.sh` first.
 
 If you have installed some libraries into locations which require special include or library paths, you can give them in CPPFLAGS and LDFLAGS environment variables. For example: