[PATCH v2 4/4] git-gui--askyesno (mingw): use Git for Windows' icon, if available

["Johannes Schindelin via GitGitGadget" <gitgitgadget@xxxxxxxxx>]

From: Johannes Schindelin <johannes.schindelin@xxxxxx>

This provides a unified look-and-feel in Git for Windows.

Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
 git-gui--askyesno | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/git-gui--askyesno b/git-gui--askyesno
index d0c801c42c7c..142d1bc3de22 100755
--- a/git-gui--askyesno
+++ b/git-gui--askyesno
@@ -47,5 +47,17 @@ pack .b -side bottom -fill x -ipadx 20 -ipady 15
 bind . <Key-Return> {exit 0}
 bind . <Key-Escape> {exit 1}
 
+if {$::tcl_platform(platform) eq {windows}} {
+	set icopath [file dirname [file normalize $argv0]]
+	if {[file tail $icopath] eq {git-core}} {
+		set icopath [file dirname $icopath]
+	}
+	set icopath [file dirname $icopath]
+	set icopath [file join $icopath share git git-for-windows.ico]
+	if {[file exists $icopath]} {
+		wm iconbitmap . -default $icopath
+	}
+}
+
 wm title . $title
 tk::PlaceWindow .
-- 
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