win32: fix BB_OVERRIDE_APPLETS

Now that BB_OVERRIDE_APPLETS can affect how the shell searches
PATH it may be necessary to invalidate the command table when it
changes.  It's probably not worth being clever about this:  just
invalidate the cache on every change.

Adds 40-80 bytes

(GitHub issue #329)

1 files changed, 8 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index fda4541b4..07319dbdf 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -2350,6 +2350,13 @@ change_terminal_mode(const char *newval UNUSED_PARAM)
         terminal_mode(TRUE);
 }
 
+static void clearcmdentry(void);
+static void FAST_FUNC
+change_override_applets(const char *newval UNUSED_PARAM)
+{
+        clearcmdentry();
+}
+
 # define LINENO_INDEX (5 + 2 * ENABLE_ASH_MAIL + ENABLE_ASH_GETOPTS)
 # define FUNCNAME_INDEX (LINENO_INDEX + 1)
 #endif
@@ -2394,6 +2401,7 @@ static const struct {
 #if ENABLE_PLATFORM_MINGW32
         { VSTRFIXED|VTEXTFIXED|VUNSET, BB_SKIP_ANSI_EMULATION, change_terminal_mode },
         { VSTRFIXED|VTEXTFIXED|VUNSET, BB_TERMINAL_MODE, change_terminal_mode },
+        { VSTRFIXED|VTEXTFIXED|VUNSET, BB_OVERRIDE_APPLETS, change_override_applets },
 #endif
 };