From bc65432230a5fd858b4a158dd7b7650e82ca374e Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Mon, 19 Jan 2009 09:18:46 +0000 Subject: [PATCH] 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. --- package/Makefile.in | 4 ++++ toolchain/gcc/gcc-uclibc-4.x.mk | 11 +++++++++-- 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/package/Makefile.in b/package/Makefile.in index c430f8bf3c..e9cf014f02 100644 --- a/package/Makefile.in +++ b/package/Makefile.in @@ -185,6 +185,10 @@ INSTALL=/usr/bin/install FLEX:=$(shell which flex || type -p flex) BISON:=$(shell which bison || type -p bison) +# hostcc version as an integer - E.G. 4.3.2 => 432 +HOSTCC_VERSION:=$(shell $(HOSTCC) --version | \ + sed -n 's/^.* \([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)[ ]*.*$$/\1\2\3/p') + HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \ -e 's/sparc.*/sparc/' \ -e 's/arm.*/arm/g' \ diff --git a/toolchain/gcc/gcc-uclibc-4.x.mk b/toolchain/gcc/gcc-uclibc-4.x.mk index 2bc25583fe..fdc2fa4a3e 100644 --- a/toolchain/gcc/gcc-uclibc-4.x.mk +++ b/toolchain/gcc/gcc-uclibc-4.x.mk @@ -145,6 +145,13 @@ ifeq ($(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 -- 2.30.2