Fix terminfo support for extended capabilities

To make sure all extended capabilities can be queried correctly, it is
necessary to compile the terminfo file using the `-x` flag.

Since Alacritty specified support for the XTerm mouse mode (XM/xm),
using the `-x` flag was not possible until now without breaking programs
like `htop`. By removing this flag, these issues should be resolved.

This fixes https://github.com/jwilm/alacritty/issues/2131.

CHANGELOG.md

@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Resetting the terminal while in the alt screen will no longer disable scrollback
 - Cursor jumping around when leaving alt screen while not in the alt screen
 - Text lingering around when resetting while scrolled up in the history
+- Terminfo support for extended capabilities
 
 ## Version 0.2.9
 

INSTALL.md

@@ -307,5 +307,5 @@ instead.
 To install alacritty's terminfo entry globally:
 
 ```sh
-sudo tic -e alacritty,alacritty-direct alacritty.info
+sudo tic -xe alacritty,alacritty-direct alacritty.info
 ```

alacritty.info

@@ -64,8 +64,6 @@ alacritty+common|base fragment for alacritty,
     rin=\E[%p1%dT,
     rep=%p1%c\E[%p2%{1}%-%db,
     rmxx=\E[29m, smxx=\E[9m,
-    XM=\E[?1006;1000%?%p1%{1}%=%th%el%;,
-    xm=\E[<%p1%d;%p2%d;%p3%d;%?%p4%tM%em%;,
     kcub1=\EOD, kcud1=\EOB, kcuf1=\EOC, kcuu1=\EOA, kend=\EOF,
     khome=\EOH,
     kf1=\EOP, kf10=\E[21~, kf11=\E[23~, kf12=\E[24~,