Create cargotmp command, add more flags to makepkg.

cargotmp: builds rust packages inside /tmp -> SSD savings

makepkg: defines CC and CXX for clang, for build systems that support it

fish/.config/fish/conf.d/developer.fish

@@ -4,6 +4,8 @@ alias cformat='clang-format -i -style=webkit'
 
 alias maketmp='make BUILD_DIR=/tmp/(basename (pwd))'
 
+alias cargotmp='env CARGO_TARGET_DIR=/tmp/cargo/(basename (pwd)) cargo'
+
 function statusgit --argument show
     if test -z $show
         set show_status false

script/.local/bin/makepkg

@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 
-RUSTFLAGS="-Clink-arg=-fuse-ld=lld" /usr/bin/makepkg "$@"
+RUSTFLAGS="-Clink-arg=-fuse-ld=lld" CC="clang" CXX="clang++" /usr/bin/makepkg "$@"