nix-2.17.0-zilched

• 03fbb50 FORK: Make a README note that this is a fork
• 36b3912 Revive release tarball in a limited form
• 8ed893e Make gtest optional by skipping tests in case of --disable-gtest
• 645f667 Make libmain explicitly depend on libdl
• 71e9da9 Use libsodium for SHA-2 instead of openssl, vendor MD5/SHA1
• ebc3094 Do not fail with inaccessible /proc/self/exe
• b990225 Respect NIX_FORCE_BUILD_PATH to set the path w/o sandboxing

nix-2.5.1-zilched

Use libsodium for SHA-2 instead of openssl, vendor MD5/SHA1

This commit partially reverts a6ca68a70c3bc0b2e6abad70346c99642a896f9f,
reviving in-tree implementations of MD5 and SHA-1, but not SHA-256.
For SHA-256 and SHA-512, libsodium implementations are used.

nix-2.5pre20211204_a8a9ba7-zilched

Use libsodium for SHA-2 instead of openssl, vendor MD5/SHA1

This commit partially reverts a6ca68a70c3bc0b2e6abad70346c99642a896f9f,
reviving in-tree implementations of MD5 and SHA-1, but not SHA-256.
For SHA-256 and SHA-512, libsodium implementations are used.

nix-2.5-pre20211129_48104dd-zilched

Make gtest optional by skipping tests in case of --disable-gtest