survex: use proj_7

It is incompatible with PROJ 8.

+2 -2
+2 -2
pkgs/applications/misc/survex/default.nix
··· 6 6 , wxGTK30-gtk3 7 7 , wxmac 8 8 , ffmpeg 9 - , proj 9 + , proj_7 10 10 , perl532 11 11 , unscii 12 12 , python ··· 29 29 nativeBuildInputs = [ docbook5 docbook2x autoreconfHook pkg-config perlenv python ]; 30 30 31 31 buildInputs = [ 32 - libGL libGLU ffmpeg proj 32 + libGL libGLU ffmpeg proj_7 33 33 ] ++ lib.optionals stdenv.hostPlatform.isDarwin [ 34 34 wxmac Carbon Cocoa 35 35 ] ++ lib.optionals stdenv.hostPlatform.isLinux [