GCC 5.1 changed the std::string ABI in order to properly support C++11. For compatibility with libraries compiled with the older ABI, that is, linking between old-abi.so and new-abi.bin, both ABIs are enabled. In terms of OpenWrt, all packages are compiled with the same toolchain, which means these issues do not need to be handled.
Most importantly, this results in a significant size reduction of libstdpp: Before: 450794 bytes After: 327752 bytes Tested with all OpenWrt packages. Signed-off-by: Rosen Penev <[email protected]> --- toolchain/gcc/common.mk | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk index aaddb74642..55fad1fcc4 100644 --- a/toolchain/gcc/common.mk +++ b/toolchain/gcc/common.mk @@ -117,7 +117,9 @@ GCC_CONFIGURE:= \ --with-mpc=$(TOPDIR)/staging_dir/host \ --disable-decimal-float \ --with-diagnostics-color=auto-if-env \ - --enable-__cxa_atexit + --enable-__cxa_atexit \ + --disable-libstdcxx-dual-abi \ + --with-default-libstdcxx-abi=new ifneq ($(CONFIG_mips)$(CONFIG_mipsel),) GCC_CONFIGURE += --with-mips-plt endif -- 2.29.2 _______________________________________________ openwrt-devel mailing list [email protected] https://lists.openwrt.org/mailman/listinfo/openwrt-devel
