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| author | Luboš Luňák <l.lunak@collabora.com> | 2019-05-21 22:41:13 +0200 |
|---|---|---|
| committer | Luboš Luňák <l.lunak@collabora.com> | 2019-05-22 14:20:19 +0200 |
| commit | fd59a10734b1f7cc58579898be83644f5a747457 (patch) | |
| tree | 32353f8b427639c3edb0706ba73eaf4e5aa5cfab /configure.ac | |
| parent | use full path for -include .gch (diff) | |
| download | core-fd59a10734b1f7cc58579898be83644f5a747457.tar.gz core-fd59a10734b1f7cc58579898be83644f5a747457.zip | |
current ccache does not correctly handle PCH in depend mode
It doesn't correctly make a dependency on the .gch or anything
the .gch is made from, so there would be stale cache hits even
if anything included from the .gch changed. Disable CCACHE_DEPEND.
https://github.com/ccache/ccache/pull/427
Change-Id: I6929ff6ec1f1e50498033cdf95b56c94522166eb
Reviewed-on: https://gerrit.libreoffice.org/72704
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 89bb6abaa324..fbd3a4237f3e 100644 --- a/configure.ac +++ b/configure.ac @@ -5088,6 +5088,23 @@ else AC_MSG_ERROR([Unknown value for --enable-pch]) fi AC_SUBST(ENABLE_PCH) +# ccache 3.7.1 and older do not properly detect/handle -include .gch in CCACHE_DEPEND mode +if test -n "$ENABLE_PCH" -a -n "$CCACHE_DEPEND_MODE" -a "$GCC" = "yes" -a "$COM_IS_CLANG" != "TRUE"; then + AC_PATH_PROG([CCACHE_BIN],[ccache],[not found]) + if test "$CCACHE_BIN" != "not found"; then + AC_MSG_CHECKING([ccache version]) + CCACHE_VERSION=`"$CCACHE_BIN" -V | "$AWK" '/^ccache version/{print $3}'` + CCACHE_NUMVER=`echo $CCACHE_VERSION | $AWK -F. '{ print \$1*10000+\$2*100+\$3 }'` + AC_MSG_RESULT([$CCACHE_VERSION]) + AC_MSG_CHECKING([whether ccache depend mode works properly with GCC PCH]) + if test "$CCACHE_NUMVER" -gt "030701"; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no (not newer than 3.7.1)]) + CCACHE_DEPEND_MODE= + fi + fi +fi TAB=`printf '\t'` |