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Instead of defaulting to OpenSSL, allow selection of package to use through a choice in libcurl's config. The default will be to select the first enabled TLS provider in the same preference order as is used now, i.e. no change from current behavior. Some of the alternative libraries have advantages over OpenSSL in certain areas. For example, gnutls has vastly superior PKCS11 support. One can use client TLS private keys by supplying a PKCS11 URI instead of a private key file name. The TLS server cert trust store can be a PKCS11 URI, e.g. configure libcurl with a ca-bundle of "pkcs11:model=p11-kit-trust". Now server certs can be stored in a software and/or hardware HSM(s). This doesn't work with OpenSSL. However, some software only supports OpenSSL for TLS or other crypto functions. So it might be necessary to enable OpenSSL for that reason. Signed-off-by: Trent Piepho <tpiepho@impinj.com> [Peter: add BR2_PACKAGE_LIBCURL_TLS_SUPPORT and use it to hide choice & comment, explitly pass --without-foo if option is not enabled, only do .pc fixup if BR2_PACKAGE_LIBCURL_OPENSSL is enabled] Signed-off-by: Peter Korsgaard <peter@korsgaard.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. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches