From: Joel Rosdahl <joel@rosdahl.net>
Date: Wed, 16 Jun 2010 19:11:33 +0000 (+0200)
Subject: Add recommendation to not use "ccache distcc compiler" as the compiler
X-Git-Tag: v3.0~15
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e7ce8336ea58a81af6013b1e9b21f7e0075c43d0;p=thirdparty%2Fccache.git

Add recommendation to not use "ccache distcc compiler" as the compiler
---

diff --git a/manual.txt b/manual.txt
index 52cd144a6..1af3ce54a 100644
--- a/manual.txt
+++ b/manual.txt
@@ -536,6 +536,12 @@ The recommended way of combining distcc and ccache is by using the
 *CCACHE_PREFIX* to *distcc* and ccache will prefix the command line used with
 the compiler with the command ``distcc''.
 
+It is not recommended to use the form *ccache distcc compiler args* as the
+compilation command, because ccache will in that case hash the mtime of distcc
+instead of the compiler (see the *CCACHE_COMPILERCHECK* option), which means
+that compiler upgrades will not be detected properly and that the cached
+results will not be shared between compilations with and without distcc.
+
 
 BUGS
 ----