clock_gettime not found on macOS

I'm trying to build on macOS, but since the latest librt changes (39dba4cd) I'm not able to.

Checking for function "clock_gettime" : NO
Library rt found: NO
Checking for function "clock_gettime" with dependency -lrt: NO

tools/meson.build:39:12: ERROR: Problem encountered: clock_gettime not found

I'm targeting OS X 10.10, where I don't believe clock_gettime() is available.

mentioned in merge request !724 (merged)

Please try !724 (merged)

assigned to @janne

Made it passed meson this time, but during compilation I get:

[71/106] Compiling C object 'tools/f9d35d4@@dav1d@exe/dav1d.c.o'.
FAILED: tools/f9d35d4@@dav1d@exe/dav1d.c.o
cc -Itools/f9d35d4@@dav1d@exe -Itools -I../src/dav1d-git/tools -I. -I../src/dav1d-git/ -Iinclude/dav1d -I../src/dav1d-git/include/dav1d -Iinclude -I../src/dav1d-git/include -Xclang -fcolor-diagnostics -DNDEBUG -pipe -Wall -Winvalid-pch -Wextra -std=c99 -O3 -D_POSIX_C_SOURCE=200112L -fvisibility=hidden -Wundef -Werror=vla -Wno-missing-field-initializers -Wno-unused-parameter -Werror=missing-prototypes -Wshorten-64-to-32 -fomit-frame-pointer -ffast-math -MD -MQ 'tools/f9d35d4@@dav1d@exe/dav1d.c.o' -MF 'tools/f9d35d4@@dav1d@exe/dav1d.c.o.d' -o 'tools/f9d35d4@@dav1d@exe/dav1d.c.o' -c ../src/dav1d-git/tools/dav1d.c
../src/dav1d-git/tools/dav1d.c:69:12: error: unknown type name 'mach_timebase_info_data_t'
    static mach_timebase_info_data_t info;
           ^
../src/dav1d-git/tools/dav1d.c:71:9: warning: implicit declaration of function 'mach_timebase_info' is invalid in C99 [-Wimplicit-function-declaration]
        mach_timebase_info(&info);
        ^
../src/dav1d-git/tools/dav1d.c:73:12: warning: implicit declaration of function 'mach_absolute_time' is invalid in C99 [-Wimplicit-function-declaration]
    return mach_absolute_time() * info.numer / info.denom;
           ^

Without looking through the code or the build files, I'd say #include <mach/mach_time.h> is missing.

closed via merge request !724 (merged)

closed via commit 79e4a5f7

mentioned in merge request !755 (merged)

changed milestone to %0.4.0 - Cheetah

This seems to have reappeared, as I'm no longer able to compile on macOS with clang 11.

This looks related to a52459b3

The error is during cmake this time:

Checking for function "clock_gettime" : NO
Library rt found: NO
Checking for function "clock_gettime" with dependency -lrt: NO (cached)
meson.build:128:12: ERROR: Problem encountered: clock_gettime not found

I guess the clock_gettime checks at https://code.videolan.org/videolan/dav1d/blob/master/meson.build#L123 should be placed inside an if host_machine.system() != 'darwin' block.

@Zeranoe can you confirm if !853 (closed) (patch) fixes it?

It does, thank you for the quick assistance.

reopened

mentioned in merge request !853 (closed)

mentioned in merge request !854 (merged)

closed via merge request !854 (merged)