gitk: use <Button-3> for ctx menus on macOS with Tcl 8.7+

Commit d277e89f87fda01daa1e1a35fc1f7118678faa1f added special handling on macOS (OS X) that makes button 2 the right mouse button. As per TIP 474 [1], Tcl 8.7 has swapped buttons 2 and 3 such that button 3 is made the right mouse button as in other platforms. Therefore, the logic should be updated to use button 3 on macOS with Tcl 8.7+. [1]: https://core.tcl-lang.org/tips/doc/main/tip/474.md Signed-off-by: Ruoyu Zhong <zhongruoyu@outlook.com>

Ruoyu Zhong committed Aug 24, 2025 at 18:07 UTC 7c06c19e66e7654031eb50b72fd79c380fa54158
1 file changed +1 -1
gitk
+1 -1
@@ -12596,7 +12596,7 @@ set foundbgcolor yellow
12596 set currentsearchhitbgcolor orange
12597
12598 # button for popping up context menus
12599 -if {[tk windowingsystem] eq "aqua"} {
12599 +if {[tk windowingsystem] eq "aqua" && [package vcompare $::tcl_version 8.7] < 0} {
12600 set ctxbut <Button-2>
12601 } else {
12602 set ctxbut <Button-3>