[Buildroot] [PATCH 05/10] toolchain/crosstool-NG: add C library config munging
Yann E. MORIN
yann.morin.1998 at anciens.enib.fr
Sat Nov 27 20:50:45 UTC 2010
For some C libraries, it can be necessary to push the BR settings
down to the libc configuration file. Prepare the infrastructure.
(Note: it will apply only to uClibc for now, and although eglibc
can also be configured, it is not currently supported)
Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at anciens.enib.fr>
---
toolchain/toolchain-crosstool-ng/crosstool-ng.mk | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/toolchain/toolchain-crosstool-ng/crosstool-ng.mk b/toolchain/toolchain-crosstool-ng/crosstool-ng.mk
index 48116af..25e12d2 100644
--- a/toolchain/toolchain-crosstool-ng/crosstool-ng.mk
+++ b/toolchain/toolchain-crosstool-ng/crosstool-ng.mk
@@ -93,8 +93,10 @@ $(STAMP_DIR)/ct-ng-toolchain-built: $(CTNG_DIR)/.config
# - first one for non-path options
# - second for path options (because they have no prompt, they
# always get set to the default value)
+# - third for C library .config (if it has one, eg. uClibc)
CTNG_FIX_DOT_CONFIG_SED :=
CTNG_FIX_DOT_CONFIG_PATHS_SED :=
+CTNG_FIX_DOT_CONFIG_LIBC_SED :=
#--------------
# A few generic functions
@@ -228,8 +230,12 @@ CTNG_FIX_DOT_CONFIG_PATHS_SED += s:^(CT_LIBC_UCLIBC_CONFIG_FILE)=.*:\1="$(CTNG_D
$(STAMP_DIR)/ct-ng-toolchain-built: $(CTNG_DIR)/libc.config
# And here is how we get this uClibc's .config
-$(CTNG_DIR)/libc.config: $(CTNG_UCLIBC_CONFIG_FILE)
+$(CTNG_DIR)/libc.config: $(CTNG_UCLIBC_CONFIG_FILE) $(CONFIG_DIR)/.config
+ -$(Q)cp -a $@ $@.timestamp
$(Q)cp -f $< $@
+ $(call ctng-fix-dot-config,$@,$(CTNG_FIX_DOT_CONFIG_LIBC_SED))
+ $(call ctng-check-config-changed,$@,$@.timestamp)
+ $(Q)rm -f $@.timestamp
endif # LIBC is uClibc
--
1.7.1
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