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- Add support to turn off hasing the compiler size and mtime via a

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enviroment variable, this aids in 'buildworld' and 'buildkernel'.

 CCACHE_NOHASH_SIZE_MTIME
    This tells ccache to not hash the real compiler's size and modi-
    fication time. Normally this is the mechanism to detect compiler
    upgrades.  There are situations however, where even  though  the
    compiler's  size or modification time has changed you can safely
    use the cached objects (e.g. if as part of your build system the
    compiler  is  built  as  well  and the compiler's source has not
    changed; or if the compiler has only changes that do not  affect
    code generation). Use this feature only if you know what you are
    doing.

Submitted by:	schweikh
This commit is contained in:
Michael Johnson 2005-11-15 20:03:33 +00:00
parent 4aace936b4
commit c7897d0359
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=148396
3 changed files with 35 additions and 1 deletions
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2
devel/ccache/Makefile
View file

@ -7,7 +7,7 @@
PORTNAME= ccache
PORTVERSION= 2.4
PORTREVISION= 1
PORTREVISION= 2
CATEGORIES= devel
MASTER_SITES= http://ccache.samba.org/ftp/ccache/

19
devel/ccache/files/patch-ccache.1 Normal file
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@ -0,0 +1,19 @@
--- ccache.1.orig Mon Sep 13 06:38:30 2004
+++ ccache.1 Tue Nov 15 14:59:46 2005
@@ -234,6 +234,16 @@
incorrect setting of this debug info rarely causes problems\&. If you
strike problems with gdb not using the correct directory then enable
this option\&.
+.IP
+.IP "\fBCCACHE_NOHASH_SIZE_MTIME\fP"
+This tells ccache to not hash the real compiler's size and modification
+time. Normally this is the mechanism to detect compiler upgrades.
+There are situations however, where even though the compiler's size or
+modification time has changed you can safely use the cached objects
+(e.g. if as part of your build system the compiler is built as well
+and the compiler's source has not changed; or if the compiler has only
+changes that do not affect code generation). Use this feature only if
+you know what you are doing.
.IP
.IP "\fBCCACHE_UNIFY\fP"
If you set the environment variable CCACHE_UNIFY

15
devel/ccache/files/patch-ccache.c Normal file
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@ -0,0 +1,15 @@
--- ccache.c.orig Mon Sep 13 06:38:30 2004
+++ ccache.c Tue Nov 15 14:59:46 2005
@@ -331,8 +331,10 @@
hash_string(str_basename(args->argv[0]));
}
- hash_int(st.st_size);
- hash_int(st.st_mtime);
+ if (!getenv("CCACHE_NOHASH_SIZE_MTIME")) {
+ hash_int(st.st_size);
+ hash_int(st.st_mtime);
+ }
/* possibly hash the current working directory */
if (getenv("CCACHE_HASHDIR")) {