options/glibc: Define struct timeb #989

Job	Run time
Build mlibc (x86_64, mlibc, gcc)	3m 56s
Compile sysdeps (dripos)	2m 27s
Build mlibc (x86_64, mlibc-static, gcc)	3m 56s
Compile sysdeps (lemon)	2m 8s
Build mlibc (x86_64, mlibc-shared, gcc)	3m 15s
Compile sysdeps (aero)	2m 10s
Build mlibc (x86_64, mlibc-ansi-only, gcc)	18m 45s
Compile sysdeps (ironclad)	2m 8s
Compile sysdeps (lyre)	2m 23s
Build mlibc (x86_64, mlibc-headers-only, gcc)	2m 10s
Build mlibc (riscv64, mlibc, gcc)	14m 19s
Compile sysdeps (keyronex)	12m 8s
Build mlibc (riscv64, mlibc-static, gcc)	4m 41s
Build mlibc (riscv64, mlibc-shared, gcc)	3m 17s
Build mlibc (riscv64, mlibc-ansi-only, gcc)	3m 5s
Build mlibc (riscv64, mlibc-headers-only, gcc)	2m 12s
Compile sysdeps (managarm)	2m 41s
Build mlibc (aarch64, mlibc, gcc)	19m 24s
Build mlibc (aarch64, mlibc-static, gcc)	19m 12s
Compile sysdeps (vinix)	2m 23s
Build mlibc (aarch64, mlibc-shared, gcc)	3m 24s
Build mlibc (aarch64, mlibc-ansi-only, gcc)	5m 59s
Build mlibc (aarch64, mlibc-headers-only, gcc)	2m 17s
Build mlibc (x86, mlibc, gcc)	3m 59s
Build mlibc (x86, mlibc-static, gcc)	3m 12s
Build mlibc (x86, mlibc-shared, gcc)	3m 4s
Build mlibc (x86, mlibc-ansi-only, gcc)	2m 52s
Build mlibc (x86, mlibc-headers-only, gcc)	2m 9s
Build mlibc (x86_64, mlibc, clang)	3m 29s
	2h 37m 5s

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