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| author | Peter Korsgaard <jacmet@sunsite.dk> | 2009-01-19 09:18:46 +0000 |
|---|---|---|
| committer | Peter Korsgaard <jacmet@sunsite.dk> | 2009-01-19 09:18:46 +0000 |
| commit | bc65432230a5fd858b4a158dd7b7650e82ca374e (patch) | |
| tree | 9d8086d1e9a3347fdeed53c934427e992eaf203a /toolchain/gcc | |
| parent | 4bcbf87c99589433bfc0d39ad4e1b4b28bc8a15d (diff) | |
| download | buildroot-novena-bc65432230a5fd858b4a158dd7b7650e82ca374e.tar.gz buildroot-novena-bc65432230a5fd858b4a158dd7b7650e82ca374e.zip | |
toolchain: introduce HOSTCC_VERSION and fix gcc-4.3.x build with old host CCs
gcc < 4.2.0 doesn't support -Wno-overlength-stings, but gcc-4.3.x configure
fails to detect that, breaking the build.
Work around it by detecting the host gcc version (and store in HOSTCC_VERSION)
and set the proper configure variables for gcc < 4.2.0.
Diffstat (limited to 'toolchain/gcc')
| -rw-r--r-- | toolchain/gcc/gcc-uclibc-4.x.mk | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/toolchain/gcc/gcc-uclibc-4.x.mk b/toolchain/gcc/gcc-uclibc-4.x.mk index 2bc25583f..fdc2fa4a3 100644 --- a/toolchain/gcc/gcc-uclibc-4.x.mk +++ b/toolchain/gcc/gcc-uclibc-4.x.mk @@ -145,6 +145,13 @@ ifeq ($(BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE),y) GCC_DECIMAL_FLOAT:=--disable-decimal-float endif +# gcc version < 4.2.0 don't have -Wno-overlength-strings and the configure +# script has problems detecting it, so help it +ifeq ($(shell test $(HOSTCC_VERSION) -lt 420 && echo OLD),OLD) +GCC_CONF_ENV:=acx_cv_prog_cc_pedantic__Wno_long_long__Wno_variadic_macros_____________Wno_overlength_strings=no \ + acx_cv_prog_cc_warning__Wno_overlength_strings=no +endif + HOST_SOURCE+=gcc-source $(DL_DIR)/$(GCC_SOURCE): @@ -227,7 +234,7 @@ $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched $(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured # gcc >= 4.3.0 have to also build all-target-libgcc ifeq ($(BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE),y) - $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc all-target-libgcc + $(GCC_CONF_ENV) $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc all-target-libgcc else $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc endif @@ -301,7 +308,7 @@ $(GCC_BUILD_DIR2)/.configured: $(GCC_SRC_DIR)/.patched $(GCC_STAGING_PREREQ) touch $@ $(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured - $(MAKE) -C $(GCC_BUILD_DIR2) all + $(GCC_CONF_ENV) $(MAKE) -C $(GCC_BUILD_DIR2) all touch $@ $(GCC_BUILD_DIR2)/.installed: $(GCC_BUILD_DIR2)/.compiled |