win32: add env var to control error dialogs

If the environment variable BB_CRITICAL_ERROR_DIALOGS is set to
1 critical error dialogs are enabled.  If unset or set to any
other value they aren't.  In either case the error messages
introduced by commit 790e37727 (win32: revert 'don't set error
mode') are issued.

The shell exports BB_CRITICAL_ERROR_DIALOGS to the environment
immediately on any change so the setting takes effect at once.

Adds 104-160 bytes.

(GitHub issue #423)

1 files changed, 1 insertions, 1 deletions

diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index c90285ae9..121959376 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -1352,7 +1352,7 @@ int main(int argc UNUSED_PARAM, char **argv)
 
         /* Have this process handle critical errors itself:  the default
          * system-generated error dialogs may be inconvenient. */
-        SetErrorMode(SEM_FAILCRITICALERRORS);
+        change_critical_error_dialogs(getenv(BB_CRITICAL_ERROR_DIALOGS) ?: "");
 #endif
 
 #if defined(__MINGW64_VERSION_MAJOR)