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With an older cmake version, like the 3.25.1 as available in the docker
reference image, mosquitto fails to build when ccache is enabled:
[ 98%] Building CXX object lib/cpp/CMakeFiles/mosquittopp.dir/mosquittopp.cpp.o
In file included from [...]/buildroot/output/build/mosquitto-2.1.2/lib/cpp/mosquittopp.cpp:17:
[...]/buildroot/output/host/opt/ext-toolchain/i686-buildroot-linux-gnu/include/c++/15.1.0/cstdlib:83:15: fatal error: stdlib.h: No such file or directory
83 | #include_next <stdlib.h>
| ^~~~~~~~~~
compilation terminated.
Officially, mosquitto only requires cmake 3.18, but that proves to not
be enough, in fact...
We workaround that by requiring cmake 4.3, which is the one version that
could be tested with our host-cmake.
Signed-off-by: Yann E. MORIN <yann.morin@orange.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Cc: Titouan Christophe <titouan.christophe@mind.be>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
(cherry picked from commit da9dcddff1)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>
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 https://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