Hello Richard, On Wed, May 1, 2024 at 3:31 PM Richard Henderson <richard.hender...@linaro.org> wrote: > > On 5/1/24 05:18, Dario Binacchi wrote: > > Hello Richard, > > > > On Tue, Apr 30, 2024 at 8:15 PM Richard Henderson > > <richard.hender...@linaro.org> wrote: > >> > >> On 4/30/24 09:47, Dario Binacchi wrote: > >>> The fp-bench test (i. e. tests/fp/fp-bench.c) use fenv.h that is not > >>> always provided by the libc (uClibc). The patch disables its compilation > >>> in case the header is not available. > >> > >> Since uclibc has had fenv.h since 2008, are you sure this isn't simply a > >> case of a corrupt > >> installation? > > > >> > >> > >> r~ > > > > It's not an issue of corrupted installation but rather of compilation: > > Installation of your cross-compiler or buildroot, I mean. > > > > > ../tests/fp/fp-bench.c:15:10: fatal error: fenv.h: No such file or directory > > 15 | #include <fenv.h> > > | ^~~~~~~~ > > compilation terminated. > > Yes, yes. However, <fenv.h> is present in uclibc-ng, and has been since 2008. > So *why* is fenv.h not present?
I found the fenv.h files here: out/emulator/host/opt/ext-toolchain/i686-buildroot-linux-uclibc/include/c++/11.3.0/tr1/fenv.h out/emulator/host/opt/ext-toolchain/i686-buildroot-linux-uclibc/include/c++/11.3.0/fenv.h But the compiler expects them in: out/emulator/host/i686-buildroot-linux-uclibc/sysroot/usr/include/ So, I think that the fenv support has not been enabled in uClibc configuration of Buildroot. Thanks and regards, Dario > > > r~ -- Dario Binacchi Senior Embedded Linux Developer dario.binac...@amarulasolutions.com __________________________________ Amarula Solutions SRL Via Le Canevare 30, 31100 Treviso, Veneto, IT T. +39 042 243 5310 i...@amarulasolutions.com www.amarulasolutions.com
