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gawk has an optional dependency on mpfr (and thus gmp) and readline, and will probe for them. If they are present, they are used; if they are missing, that's not an error. mpfr (and gmp) is used for "BIGNUM" support on gawk; readline is used by the gawk debugger. However, mpfr (bringing gmp) are also host-packages in Buildroot, but in the standard build order (i.e. a plain 'make'), they are built after gawk. Ditto readline (from ncurses). If the user has the development files for gmp and mpfr, then gawk is linked to them. Ditto readline. Now, further on in the build, we build gmp and mpfr (for gcci or guile), so we install them in the host dir. Ditto readline (for gdb, ncurses itself and a few other packages...) But because we forcibly set an RPATH tag on all our host binaries, our host gawk will now dynamically link with our versions, when it was in fact built against the host ones. This did not seem to cause any harm so far, but is far from ideal. Since we do not really need BIGNUM or the debugger in our host gawk, we just forcibly disable them and configure gawk without readline or mpfr (there's no switch for gmp, but it's not a direct dependency, it comes just with mpfr). [Adjust comment as suggested by Thomas/Yann] Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Peter Korsgaard <jacmet@uclibc.org> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> |
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| configs | ||
| docs | ||
| fs | ||
| linux | ||
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| system | ||
| toolchain | ||
| .defconfig | ||
| .gitignore | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| Makefile | ||
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| README | ||
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.