| # |
| config BR2_LARGEFILE |
| bool "Enable large file (files > 2 GB) support?" |
| depends on !BR2_cris |
| help |
| If you are building your own toolchain and you want to |
| support files larger than 2GB then enable this option. |
| If you have an external binary toolchain that has been |
| built with large file support (files > 2GB) then enable |
| this option. |
| |
| config BR2_INET_IPV6 |
| bool "Enable IPv6" |
| help |
| If you are building your own toolchain and you want to |
| enable IPV6 support then enable this option. |
| If you have an external binary toolchain that has been |
| built with IPV6 support then enable this option. |
| |
| config BR2_INET_RPC |
| bool "Enable RPC" |
| help |
| Enable RPC. RPC support is needed for nfs. |
| If you are building your own toolchain and you want to |
| enable RPC support then enable this option. |
| If you have an external binary toolchain that has been |
| built with RPC support then enable this option. |
| |
| config BR2_ENABLE_LOCALE |
| bool "Enable toolchain locale/i18n support?" |
| select BR2_USE_WCHAR |
| help |
| If you are building your own toolchain and you want to |
| enable locale/i18n support then enable this option. |
| If you have an external binary toolchain that has been |
| built with locale/i18n support then enable this option. |
| |
| config BR2_ENABLE_LOCALE_PREGENERATED |
| bool "Use pregenerated locale data?" |
| depends on BR2_ENABLE_LOCALE && BR2_TOOLCHAIN_BUILDROOT && BROKEN # tarball missing |
| help |
| Instead of generating the locale data locally you can optionally |
| download a pregenerated set of locales. |
| |
| Say N here unless your buildhost lacks locale support and you |
| desparately want to use internationalization on your target. |
| |
| config BR2_ENABLE_LOCALE_PURGE |
| bool "Purge unwanted locales" |
| help |
| Explicitly specify what locales to install on target. If N |
| then all locales supported by packages are installed. |
| |
| config BR2_ENABLE_LOCALE_WHITELIST |
| string "Locales to keep" |
| default "C en_US de fr" |
| depends on BR2_ENABLE_LOCALE_PURGE |
| help |
| Whitespace seperated list of locales to allow on target. |
| Locales not listed here will be removed from the target. |
| See 'locale -a' on your host for a list of locales available |
| on your build host, or have a look in /usr/share/locale in |
| the target file system for available locales. |
| |
| Notice that listing a locale here doesn't guarantee that it |
| will be available on the target - That purely depends on the |
| support for that locale in the selected packages. |
| |
| config BR2_USE_WCHAR |
| bool "Enable WCHAR support" |
| help |
| If you are building your own toolchain and you want to |
| enable WCHAR support then enable this option. |
| If you have an external binary toolchain that has been built |
| with WCHAR support then enable this option. |
| |
| config BR2_PREFER_SOFT_FLOAT |
| bool |
| default y if BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel |
| |
| config BR2_SOFT_FLOAT |
| bool "Use software floating point by default" |
| depends on BR2_arm || BR2_armeb || BR2_avr32 || BR2_mips || BR2_mipsel || BR2_powerpc |
| default $(BR2_PREFER_SOFT_FLOAT) |
| 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). |
| |
| config BR2_USE_SSP |
| bool "Enable stack protection support" |
| help |
| Enable stack smashing protection support using GCCs |
| -fstack-protector[-all] option. |
| |
| See http://www.linuxfromscratch.org/hints/downloads/files/ssp.txt |
| for details. |
| |
| choice |
| prompt "Thread library implementation" |
| default BR2_PTHREADS_OLD |
| help |
| If you are building your own toolchain then select the type of |
| libpthreads you want to use. |
| Not all thread variants work with all versions of uClibc, |
| the "linuxthreads (stable/old)" may be a working fallback |
| if you need threading at all. |
| If you have an external binary toolchain then select the type |
| of libpthreads it was built with. |
| |
| config BR2_PTHREADS_NONE |
| bool "none" |
| |
| config BR2_PTHREADS |
| bool "linuxthreads" |
| |
| config BR2_PTHREADS_OLD |
| bool "linuxthreads (stable/old)" |
| |
| config BR2_PTHREADS_NATIVE |
| bool "Native POSIX Threading (NPTL)" |
| depends on BR2_UCLIBC_VERSION_SNAPSHOT |
| endchoice |
| |
| config BR2_PROGRAM_INVOCATION |
| bool "Enable 'program invocation name'" |
| help |
| Support for the GNU-specific program_invocation_name and |
| program_invocation_short_name strings. Some GNU packages |
| (like tar and coreutils) utilize these for extra useful |
| output, but in general are not required. |
| If you have an external binary toolchain that has been built |
| with program invocation support then enable this option. |
| |
| config BR2_GCC_CROSS_CXX |
| bool |
| help |
| If you are building your own toolchain and want to build |
| a C++ cross-compiler this needs to be enabled. |
| If you have an external binary toolchain that has a C++ compiler |
| and you want to use it then you need to enable this option. |
| |
| config BR2_INSTALL_LIBSTDCPP |
| bool "Build/install c++ compiler and libstdc++?" |
| select BR2_LARGEFILE if (!BR2_GCC_SUPPORTS_SYSROOT && BR2_TOOLCHAIN_BUILDROOT) |
| select BR2_GCC_CROSS_CXX |
| help |
| If you are building your own toolchain and want to build and install |
| the C++ compiler and library then you need to enable this option. |
| If you have an external toolchain that has been built with C++ |
| support and you want to use the compiler / library then you need |
| to select this option. |
| |
| config BR2_TARGET_OPTIMIZATION |
| string "Target Optimizations" |
| default "-Os -pipe" |
| help |
| Optimizations to use when building for the target host. |
| |
| if BR2_TOOLCHAIN_BUILDROOT |
| source "toolchain/elf2flt/Config.in" |
| source "toolchain/mklibs/Config.in" |
| source "toolchain/sstrip/Config.in" |
| |
| config BR2_ENABLE_MULTILIB |
| bool "Enable multilib support?" |
| help |
| Build libraries to support different ABIs. |
| |
| config BR2_VFP_FLOAT |
| bool "Use ARM Vector Floating Point unit" |
| depends on !BR2_SOFT_FLOAT |
| depends on BR2_arm || BR2_armeb |
| help |
| Setting this option will enable the "-mfpu=vfp" option. |
| If your ARM CPU has a Vector Floating Point Unit (VFP) |
| and the toolchain supports the option, then the |
| code can be optimized. |
| |
| Most people will answer N. |
| |
| config BR2_CROSS_TOOLCHAIN_TARGET_UTILS |
| bool "Include target utils in cross toolchain" |
| default y |
| help |
| When using buildroot to build a deployable cross toolchain, |
| it is handy to include certain target apps with that toolchain |
| as a convenience. |
| Examples include ldd, gdbserver, and strace. |
| |
| Answer Y if you want these apps (if built) copied into the |
| cross toolchain dir under <arch>-linux-uclibc/target_utils/. |
| |
| endif |
