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| -rw-r--r-- | package/ccache/ccache.mk | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/package/ccache/ccache.mk b/package/ccache/ccache.mk index 915544108..393989f54 100644 --- a/package/ccache/ccache.mk +++ b/package/ccache/ccache.mk @@ -14,6 +14,17 @@ CCACHE_SOURCE = ccache-$(CCACHE_VERSION).tar.bz2 HOST_CCACHE_CONF_ENV = \ CC="$(HOSTCC_NOCCACHE)" +# Force ccache to use its internal zlib. The problem is that without +# this, ccache would link against the zlib of the build system, but we +# might build and install a different version of zlib in $(O)/host +# afterwards, which ccache will pick up. This might break if there is +# a version mismatch. A solution would be to add host-zlib has a +# dependency of ccache, but it would require tuning the zlib .mk file +# to use HOSTCC_NOCCACHE as the compiler. Instead, we take the easy +# path: tell ccache to use its internal copy of zlib, so that ccache +# has zero dependency besides the C library. +HOST_CCACHE_CONF_OPT += ccache_cv_zlib_1_2_3=no + # We directly hardcode the cache location into the binary, as it is # much easier to handle than passing an environment variable. define HOST_CCACHE_FIX_CCACHE_DIR |