On 2/8/22 16:16, Simon Glass wrote: > On Sat, 29 Jan 2022 at 07:17, Heinrich Schuchardt > <heinrich.schucha...@canonical.com> wrote: >> >> >> >> On 1/28/22 10:08, Heinrich Schuchardt wrote: >>> sdl.c is compiled against the SDL library. >>> >>> Trying to redefine wchar_t with -fshort-wchar is not necessary >>> and leads to build failures when compiling against musl. >>> >>> Cc: Milan P. Stanić <m...@arvanta.net> >>> Signed-off-by: Heinrich Schuchardt <heinrich.schucha...@canonical.com> >>> --- > > Reviewed-by: Simon Glass <s...@chromium.org> > > How do I compile against musl?
On Ubuntu install the musl-tools package and use musl-gcc as your compiler. You can add a new alternative for cc with sudo update-alternatives --install /usr/bin/cc cc /usr/bin/x86_64-linux-musl-gcc 10 and choose the active alternative with sudo update-alternatives --config cc But this will give you problems with the include paths for libraries like openssl. A better choice is using a distro like Alpine which defaults to musl. You can easily test it in docker. Best regards Heinrich > > Regards, > Simon > >>> v2: >>> fix a build error with clang by adding -fno-lto for building sdl.o >>> >>> A better longterm solution will be to eliminate -fshort-wchar completely. >>> This will require replacing %ls printf() codes by something that gcc does >>> not check, e.g. %pS. Further all L"" strings must be replaced by u"" >>> strings. >> >> %p will not work as a replacement for %ls: >> >> warning: precision used with ‘%p’ gnu_printf format [-Wformat=] >> 298 | s += sprintf(s, "%-.*ps", slen, fp->str); >> | ^ >> >> Best regards >> >> Heinrich Applied to u-boot-dm, thanks!
