[Buildroot] [PATCH 14/20] Introduce support for host config cache
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Wed Jul 7 06:21:07 UTC 2010
We now have for quite some time a configuration cache used to speed-up
the execution of ./configure scripts when compiling programs for the
target. This commit introduces a similar concept when Buildroot
compiles programs for the host.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
Makefile | 8 ++++----
package/Makefile.autotools.in | 1 +
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/Makefile b/Makefile
index df276c1..d6bcb36 100644
--- a/Makefile
+++ b/Makefile
@@ -441,12 +441,12 @@ show-targets:
@echo $(TARGETS)
ifeq ($(BR2_CONFIG_CACHE),y)
-# drop configure cache if configuration is changed
-$(BUILD_DIR)/tgt-config.cache: $(CONFIG_DIR)/.config
+# drop configure caches if configuration is changed
+$(BUILD_DIR)/tgt-config.cache $(BUILD_DIR)/host-config.cache: $(CONFIG_DIR)/.config
rm -f $@
touch $@
-$(BASE_TARGETS): | $(BUILD_DIR)/tgt-config.cache
+$(BASE_TARGETS): | $(BUILD_DIR)/tgt-config.cache $(BUILD_DIR)/host-config.cache
endif
else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
@@ -580,7 +580,7 @@ endif
rm -rf $(CONFIG_DIR)/.config $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/.config.cmd $(CONFIG_DIR)/.auto.deps
flush:
- rm -f $(BUILD_DIR)/tgt-config.cache
+ rm -f $(BUILD_DIR)/tgt-config.cache $(BUILD_DIR)/host-config.cache
%_defconfig: $(TOPDIR)/configs/%_defconfig
cp $^ $(CONFIG_DIR)/.config
diff --git a/package/Makefile.autotools.in b/package/Makefile.autotools.in
index 318bd71..337aee4 100644
--- a/package/Makefile.autotools.in
+++ b/package/Makefile.autotools.in
@@ -117,6 +117,7 @@ define $(2)_CONFIGURE_CMDS
LDFLAGS="$$(HOST_LDFLAGS)" \
$$($$(PKG)_CONF_ENV) \
./configure \
+ $$(if $$(filter YES,$$($$(PKG)_USE_CONFIG_CACHE)),--cache-file="$(BUILD_DIR)/host-config.cache",) \
--prefix="$$(HOST_DIR)/usr" \
--sysconfdir="$$(HOST_DIR)/etc" \
$$($$(PKG)_CONF_OPT) \
--
1.7.0.4
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