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file-5.41 uses AC_PROG_CC, and was generated with autoconf 2.69. That oldish version of autoconf does not check the C standard when AC_PROG_CC is called, and standard-specific macros must be called instead: AC_PROG_CC_C89, AC_PROG_CC_C99, or AC_PROG_CC_STDC. So we would need to patch configure.ac to call either of those options, and then we'd have to autoreocnf. However, that would autoreconf with our autoconf, version 2.71. In that version, AC_PROG_CC always check what C standards are available and sets the appropriate ac_cv_XXX variables, and the previous macros, AC_PROG_CC_C89, AC_PROG_CC_C99, and AC_PROG_CC_STDC are deprecated. So it turns out that we just need to autoreconf. Fixes: - http://autobuild.buildroot.org/results/9e7868be00f2cd18205b2ce664be95f8b9e2b063 - http://autobuild.buildroot.org/results/31cbc313fceb84c0cbb1969fca5ac44244871dbc Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> Cc: Fabrice Fontaine <fontaine.fabrice@gmail.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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches