# if BR2_TOOLCHAIN_EXTERNAL comment "External Toolchain Options" config BR2_TOOLCHAIN_EXTERNAL_LIB_C string "The core C library from the external toolchain" default "libc.so.0" help Specify the core C shared library found in the external toolchain. This is required in addition to any other libraries to be copied. config BR2_TOOLCHAIN_EXTERNAL_LIBS string "Libraries to copy from the external toolchain" default "ld-uClibc.so.0 libcrypt.so.0 libdl.so.0 libgcc_s.so libm.so.0 libnsl.so.0 libpthread.so.0 libresolv.so.0 librt.so.0 libutil.so.0" help A space separated list of the shared libraries to be copied from the external toolchain into the root filesystem. Only the top-level name is needed, i.e. libc.so, libpthread.so as the actual shared library symlinked to will be copied also. config BR2_TOOLCHAIN_EXTERNAL_STRIP bool default y prompt "Strip shared libraries" help Strip shared libraries copied from the external toolchain. comment "Common Toolchain Options" source "toolchain/gdb/Config.in.2" config BR2_TOOLCHAIN_EXTERNAL_PATH string "External toolchain path" default "/path/to/staging_dir/usr" help Path to where the external toolchain is installed. config BR2_TOOLCHAIN_EXTERNAL_PREFIX string "External toolchain prefix" default "$(ARCH)-linux" help This the the external toolchain prefix. For example: armeb-unknown-linux-gnu, mipsel-unknown-linux-gnu, etc. choice prompt "Thread library implementation" default BR2_EXT_PTHREADS_OLD help Select the version of libpthreads used in the external toolchain. config BR2_EXT_PTHREADS_NONE bool prompt "none" config BR2_EXT_PTHREADS bool prompt "linuxthreads" config BR2_EXT_PTHREADS_OLD bool prompt "linuxthreads (stable/old)" config BR2_EXT_PTHREADS_NATIVE bool prompt "Native POSIX Threading (NPTL)" endchoice config BR2_LARGEFILE bool "Enable large file (files > 2 GB) support?" depends on !BR2_cris default y help Enable large file (files > 2 GB) support config BR2_INET_IPV6 bool "Enable IPv6" help Enable IPv6. config BR2_INET_RPC bool "Enable RPC" help Enable RPC. RPC support is needed for nfs. config BR2_SOFT_FLOAT bool "Use software floating point by default" depends on BR2_arm || BR2_armeb || BR2_mips || BR2_mipsel || BR2_powerpc help If your target CPU does not have a Floating Point Unit (FPU) or a kernel FPU emulator, but you still wish to support floating point functions, then everything will need to be compiled with soft floating point support (-msoft-float). Most people will answer N. config BR2_TARGET_OPTIMIZATION string "Target Optimizations" default "-Os -pipe" help Optimizations to use when building for the target host. endif