nettle

USE flags

• abi_mips_n32 - 64-bit (32-bit pointer) libraries
• abi_mips_n64 - 64-bit libraries
• abi_mips_o32 - 32-bit libraries
• abi_s390_32 - 32-bit (s390) libraries
• abi_s390_64 - 64-bit (s390x) libraries
• abi_x86_32 - 32-bit (x86) libraries
• abi_x86_64 - 64-bit (amd64) libraries
• abi_x86_x32 - x32 ABI libraries
• cpu_flags_arm_aes - Use the AES cryptography instruction set
• cpu_flags_arm_neon - Use the NEON (ASIMD) instruction set
• cpu_flags_arm_sha1 - Use the SHA-1 cryptography instruction set
• cpu_flags_arm_sha2 - Use the SHA-2 cryptography instruction set
• cpu_flags_ppc_altivec - Use the AltiVec/VMX instruction set
• cpu_flags_ppc_vsx2 - Use the Vector Scalar Extension v.2 instruction set (POWER8 and later)
• cpu_flags_ppc_vsx3 - Use the Vector Scalar Extension v.3 instruction set (POWER9 and later)
• cpu_flags_x86_aes - Enable support for Intel's AES instruction set (AES-NI)
• cpu_flags_x86_pclmul - Use Carry-less Multiplication instructions ([pclmulqdq] in cpuinfo)
• cpu_flags_x86_sha - Use the SHA-NI instruction set
• doc - Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally
• gmp - Add support for dev-libs/gmp (GNU MP library)
• static-libs - Build static versions of dynamic libraries as well
• verify-sig - Verify upstream signatures on distfiles

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