Port to x86 architecture #3278

Job	Run time
Compile sysdeps (dripos)	2m 24s
Build mlibc (x86_64, mlibc)	3m 42s
Compile sysdeps (lemon)	2m 16s
Build mlibc (x86_64, mlibc-static)	1m 46s
Compile sysdeps (aero)	2m 24s
Compile sysdeps (ironclad)	2m 24s
Build mlibc (x86_64, mlibc-shared)	2m 10s
Build mlibc (x86_64, mlibc-ansi-only)	2m 57s
Compile sysdeps (lyre)	2m 14s
Build mlibc (x86_64, mlibc-headers-only)	1m 57s
Compile sysdeps (keyronex)	2m 14s
Build mlibc (riscv64, mlibc)	3m 36s
Build mlibc (riscv64, mlibc-static)	3m 54s
Build mlibc (riscv64, mlibc-shared)	2m 59s
Build mlibc (riscv64, mlibc-ansi-only)	2m 53s
Build mlibc (riscv64, mlibc-headers-only)	1m 56s
Build mlibc (aarch64, mlibc)	3m 54s
Build mlibc (aarch64, mlibc-static)	3m 14s
Build mlibc (aarch64, mlibc-shared)	3m 14s
Build mlibc (aarch64, mlibc-ansi-only)	2m 56s
Build mlibc (aarch64, mlibc-headers-only)	1m 45s
Build mlibc (x86, mlibc)	1m 50s
Build mlibc (x86, mlibc-static)	1m 39s
Build mlibc (x86, mlibc-shared)	1m 30s
Build mlibc (x86, mlibc-ansi-only)	1m 43s
Build mlibc (x86, mlibc-headers-only)	1m 42s
	1h 5m 13s

Provide feedback