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This commit wires up the gcc version dependency mechanism in the external toolchain backend. To do so, it: * Changes the definition of all pre-defined external toolchain profiles to select the appropriate BR2_TOOLCHAIN_GCC_AT_LEAST_* option. * For custom external toolchains, provides a visible Config.in "choice" to select the gcc version used in the external toolchain. * Adds a new check_gcc_version function, that verifies that the real gcc version found in the external toolchain matches the one declared in the Buildroot configuration. [Thomas: use better sed expression proposed by Yann E. Morin, which works with more cases.] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC.