buildroot/package/jemalloc/Config.in

config BR2_PACKAGE_JEMALLOC_ARCH_SUPPORTS
	bool
	# see include/jemalloc/internal/quantum.h
	default y if BR2_arm || BR2_armeb
	default y if BR2_aarch64 || BR2_aarch64_be
	default y if BR2_i386 || BR2_x86_64
	default y if BR2_m68k
	default y if BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
	default y if BR2_nios2
	default y if BR2_or1k
	default y if BR2_powerpc
	default y if BR2_riscv
	default y if BR2_sh4 || BR2sh4eb || BR2_sh4a || BR2_sh4aeb
	default y if BR2_sparc64

config BR2_PACKAGE_JEMALLOC
	bool "jemalloc"
	depends on BR2_PACKAGE_JEMALLOC_ARCH_SUPPORTS
	depends on BR2_TOOLCHAIN_HAS_THREADS
	help
	  This library providing a malloc(3) implementation that
	  emphasizes fragmentation avoidance and scalable concurrency
	  support.

	  http://jemalloc.net/

comment "jemalloc needs a toolchain w/ threads"
	depends on BR2_PACKAGE_JEMALLOC_ARCH_SUPPORTS
	depends on !BR2_TOOLCHAIN_HAS_THREADS