git-gui: Add a special diff popup menu for submodules

diff --git a/lib/commit.tcl b/lib/commit.tcl
index 17aba914af701349da900deb908af9117c580672..7f459cd5647f690a5e48ed7c29fc0d75eef89d0c 100644 (file)
--- a/lib/commit.tcl
+++ b/lib/commit.tcl
@@ -407,8 +407,8 @@ A rescan will be automatically started now.
        #
        set fd_ph [githook_read post-commit]
        if {$fd_ph ne {}} {
-               upvar #0 pch_error$cmt_id pc_err
-               set pc_err {}
+               global pch_error
+               set pch_error {}
                fconfigure $fd_ph -blocking 0 -translation binary -eofchar {}
                fileevent $fd_ph readable \
                        [list commit_postcommit_wait $fd_ph $cmt_id]
@@ -470,7 +470,7 @@ A rescan will be automatically started now.
 }
 
 proc commit_postcommit_wait {fd_ph cmt_id} {
-       upvar #0 pch_error$cmt_id pch_error
+       global pch_error
 
        append pch_error [read $fd_ph]
        fconfigure $fd_ph -blocking 1