This fixes a couple of problems:
* Lua 5.1 doesn't have SYSLIBS, so wasn't being linked with any
libraries.
* SYSLIBS doesn't include -lm, so we had to add that manually to
pkgconfig. LIBS includes -lm, so we don't need that hack any more.
We do this same patch in three different ways for four different Lua
versions, even though the structure of the Makefile barely changes
between releases. We can easily consolidate this by just modifying
the Makefile ourselves instead of using patches (Makefiles are very
amenable to this).
This is supposed to be automatically set by Lua's Makefile if PLAT is
set appropriately, but it was being overridden by us overridding
CFLAGS. Setting it manually was a hack. The correct thing to do was
to make sure SYSCFLAGS (where Lua's Makefile puts LUA_USE_LINUX) was
still included in our custom CFLAGS.
This creates a symlink to lua.pc for every name of the file used by Arch:
For a version of Lua (for example, 5.4) we now have:
- lib/pkgconfig/lua.pc
- lib/pkgconfig/lua-5.4.pc
- lib/pkgconfig/lua5.4.pc
- lib/pkgconfig/lua54.pc
The 672c3c1d2a refactor accidentally
dropped the last version component from the source URLs. This change
puts its back.
$ for lua in lua5_{1,2,3};do nix-instantiate --json --eval . -A $lua.src.urls | jq -r '.[]' | xargs nix-prefetch-url; done
Before this change:
lua-5.1.tar.gz 1hbjhh211p82vhwqhx4mmhmvhv56060acnka80gbmfdk3q3bjnvz (wrong hash because this is lua 5.1.0. We want 5.1.5 )
lua-5.2.tar.gz HTTP error 404
lua-5.3.tar.gz HTTP error 404
After this change:
lua-5.1.5.tar.gz 0cskd4w0g6rdm2q8q3i4n1h3j8kylhs3rq8mxwl9vwlmlxbgqh16
lua-5.2.4.tar.gz 0jwznq0l8qg9wh5grwg07b5cy3lzngvl5m2nl1ikp6vqssmf9qmr <-- Desired hash
lua-5.3.5.tar.gz 1b2qn2rv96nmbm6zab4l877bd4zq7wpwm8drwjiy2ih4jqzysbhc
Converted to base16 with `nix-hash --type sha256 --to-base16`:
lua-5.1.5.tar.gz 2640fc56a795f29d28ef15e13c34a47e223960b0240e8cb0a82d9b0738695333 <-- Desired hash
lua-5.2.4.tar.gz b9e2e4aad6789b3b63a056d442f7b39f0ecfca3ae0f1fc0ae4e9614401b69f4b
lua-5.3.5.tar.gz 0c2eed3f960446e1a3e4b9a1ca2f3ff893b6ce41942cf54d5dd59ab4b3b058ac <-- Desired hash
