76 lines
2.8 KiB
Makefile
76 lines
2.8 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_OPTS += ccache_cv_zlib_1_2_3=no
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# Patch host-ccache as follows:
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# - Use BR_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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# BR_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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# - Change hard-coded last-ditch default to match path in .config, to avoid
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# the need to specify BR_CACHE_DIR when invoking ccache directly.
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define HOST_CCACHE_PATCH_CONFIGURATION
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sed -i 's,getenv("CCACHE_DIR"),getenv("BR_CACHE_DIR"),' $(@D)/ccache.c
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sed -i 's,getenv("CCACHE_COMPILERCHECK"),"none",' $(@D)/ccache.c
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sed -i 's,"%s/.ccache","$(BR_CACHE_DIR)",' $(@D)/ccache.c
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endef
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HOST_CCACHE_POST_CONFIGURE_HOOKS += HOST_CCACHE_PATCH_CONFIGURATION
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define HOST_CCACHE_MAKE_CACHE_DIR
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mkdir -p $(BR_CACHE_DIR)
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endef
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HOST_CCACHE_POST_INSTALL_HOOKS += HOST_CCACHE_MAKE_CACHE_DIR
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# Provide capability to do initial ccache setup (e.g. increase default size)
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BR_CCACHE_INITIAL_SETUP = $(call qstrip,$(BR2_CCACHE_INITIAL_SETUP))
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ifneq ($(BR_CCACHE_INITIAL_SETUP),)
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define HOST_CCACHE_DO_INITIAL_SETUP
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@$(call MESSAGE,"Applying initial settings")
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$(CCACHE) $(BR_CCACHE_INITIAL_SETUP)
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$(CCACHE) -s
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endef
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HOST_CCACHE_POST_INSTALL_HOOKS += HOST_CCACHE_DO_INITIAL_SETUP
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endif
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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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ccache-options: host-ccache
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ifeq ($(CCACHE_OPTIONS),)
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$(Q)echo "Usage: make ccache-options CCACHE_OPTIONS=\"opts\""
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$(Q)echo "where 'opts' corresponds to one or more valid ccache options" \
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"(see ccache help text below)"
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$(Q)echo
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endif
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$(Q)$(CCACHE) $(CCACHE_OPTIONS)
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endif
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