49 lines
1.9 KiB
Makefile
49 lines
1.9 KiB
Makefile
################################################################################
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#
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# ccache
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#
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################################################################################
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CCACHE_VERSION = 3.1.8
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CCACHE_SITE = http://samba.org/ftp/ccache
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CCACHE_SOURCE = ccache-$(CCACHE_VERSION).tar.xz
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CCACHE_LICENSE = GPLv3+, others
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CCACHE_LICENSE_FILES = LICENSE.txt GPL-3.0.txt
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# Force ccache to use its internal zlib. The problem is that without
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# this, ccache would link against the zlib of the build system, but we
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# might build and install a different version of zlib in $(O)/host
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# afterwards, which ccache will pick up. This might break if there is
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# a version mismatch. A solution would be to add host-zlib has a
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# dependency of ccache, but it would require tuning the zlib .mk file
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# to use HOSTCC_NOCCACHE as the compiler. Instead, we take the easy
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# path: tell ccache to use its internal copy of zlib, so that ccache
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# has zero dependency besides the C library.
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HOST_CCACHE_CONF_OPT += ccache_cv_zlib_1_2_3=no
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# Patch host-ccache as follows:
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# - Use BUILDROOT_CACHE_DIR instead of CCACHE_DIR, because CCACHE_DIR
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# is already used by autotargets for the ccache package.
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# BUILDROOT_CACHE_DIR is exported by Makefile based on config option
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# BR2_CCACHE_DIR.
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# - ccache shouldn't use the compiler binary mtime to detect a change in
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# the compiler, because in the context of Buildroot, that completely
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# defeats the purpose of ccache. Of course, that leaves the user
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# responsible for purging its cache when the compiler changes.
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define HOST_CCACHE_PATCH_CONFIGURATION
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sed -i 's,getenv("CCACHE_DIR"),getenv("BUILDROOT_CACHE_DIR"),' $(@D)/ccache.c
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sed -i 's,getenv("CCACHE_COMPILERCHECK"),"none",' $(@D)/ccache.c
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endef
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HOST_CCACHE_POST_CONFIGURE_HOOKS += \
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HOST_CCACHE_PATCH_CONFIGURATION
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$(eval $(autotools-package))
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$(eval $(host-autotools-package))
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ifeq ($(BR2_CCACHE),y)
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ccache-stats: host-ccache
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$(Q)$(CCACHE) -s
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endif
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