libfyaml @0.9.6: needs clock_gettime and MAP_ANONYMOUS

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/319251/steps/install-port/logs/stdio

/opt/local/var/macports/build/libfyaml-12e0b87e/work/libfyaml-0.9.6/src/internal/fy-thread.c:196:2: error: call to undeclared function 'clock_gettime'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
        clock_gettime(CLOCK_MONOTONIC, &s->execute);
        ^
/opt/local/var/macports/build/libfyaml-12e0b87e/work/libfyaml-0.9.6/src/internal/fy-thread.c:196:16: error: use of undeclared identifier 'CLOCK_MONOTONIC'
        clock_gettime(CLOCK_MONOTONIC, &s->execute);
                      ^

​https://build.macports.org/builders/ports-10.8_x86_64-builder/builds/235887/steps/install-port/logs/stdio

/opt/local/var/macports/build/libfyaml-12e0b87e/work/libfyaml-0.9.6/src/allocator/fy-allocator-mremap.c:122:68: error: use of undeclared identifier 'MAP_ANONYMOUS'
                mem = mmap(NULL, balloon_size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
                                                                                 ^
/opt/local/var/macports/build/libfyaml-12e0b87e/work/libfyaml-0.9.6/src/allocator/fy-allocator-mremap.c:125:73: error: use of undeclared identifier 'MAP_ANONYMOUS'
                        mran = mmap(NULL, size_page_align, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
                                                                                             ^
/opt/local/var/macports/build/libfyaml-12e0b87e/work/libfyaml-0.9.6/src/allocator/fy-allocator-mremap.c:235:87: error: use of undeclared identifier 'MAP_ANONYMOUS'
                mem = mmap((char *)mran + mran->size, mran->size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
                                                                                                    ^
3 errors generated.

The legacysupport portgroup can help with both.

[brunvonlope (Bruno)]

​https://github.com/macports/macports-ports/pull/32245 should take care of the build failures

[brunvonlope (Bruno)]

In 007f19b26d881317b2540ad88ecd7103bfcf8454/macports-ports (master):

libfyaml: Use legacysupport for clock_gettime

Closes: #73857