mingw: really handle SIGINT

Previously, we did not install any handler for Ctrl+C, but now we really want to because the MSYS2 runtime learned the trick to call the ConsoleCtrlHandler when Ctrl+C was pressed. With this, hitting Ctrl+C while `git log` is running will only terminate the Git process, but not the pager. This finally matches the behavior on Linux and on macOS. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Johannes Schindelin committed Jun 4, 2026 at 16:24 UTC 363f1d8b3a9c90f13ca6fd9ab0dc47e483e3cc9c
1 file changed +9
compat/mingw.c
+9
@@ -3623,7 +3623,14 @@ static void adjust_symlink_flags(void)
3623 symlink_file_flags |= 2;
3624 symlink_directory_flags |= 2;
3625 }
3626 +}
3627
3628 +static BOOL WINAPI handle_ctrl_c(DWORD ctrl_type)
3629 +{
3630 + if (ctrl_type != CTRL_C_EVENT)
3631 + return FALSE; /* we did not handle this */
3632 + mingw_raise(SIGINT);
3633 + return TRUE; /* we did handle this */
3634 }
3635
3636 #ifdef _MSC_VER
@@ -3660,6 +3667,8 @@ int wmain(int argc, const wchar_t **wargv)
3667 #endif
3668 #endif
3669
3670 + SetConsoleCtrlHandler(handle_ctrl_c, TRUE);
3671 +
3672 maybe_redirect_std_handles();
3673 adjust_symlink_flags();
3674