From: Joel Rosdahl <joel@rosdahl.net>
Date: Sun, 30 May 2010 09:38:02 +0000 (+0200)
Subject: Add another reason for direct mode miss but preprocessor mode hit
X-Git-Tag: v3.0~90
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=816ec0053a83f68444d797b173a1318ddfa9ef36;p=thirdparty%2Fccache.git

Add another reason for direct mode miss but preprocessor mode hit
---

diff --git a/manual.txt b/manual.txt
index 77c68eed0..ad419b227 100644
--- a/manual.txt
+++ b/manual.txt
@@ -581,6 +581,9 @@ problems and what may be done to increase the hit rate:
 * If ``cache hit (preprocessed)'' has been incremented instead of ``cache hit
   (direct)'', ccache has fallen back to preprocessor mode, which is generally
   slower. Some possible reasons are:
+** Compiler arguments that are hashed in the direct mode but not in the
+   preprocessor mode have changed (*-I*, *-include*, *-D*, etc) and they didn't
+   affect the preprocessor output.
 ** The compiler option *-Xpreprocessor* or *-Wp,_X_* (except *-Wp,-MD,_path_*
    and *Wp,-MMD,_path_*) is used.
 ** This was the first compilation with a new value of *CCACHE_BASEDIR*.