From 442dada22d3b6e511d30b05a80bab153619e52a7 Mon Sep 17 00:00:00 2001
From: Pat Thoyts <patthoyts@users.sourceforge.net>
Date: Thu, 18 Mar 2010 21:45:19 +0000
Subject: MinGW: Report errors when failing to launch the html browser.

The mingw function to launch the system html browser is silent if the
target file does not exist leaving the user confused. Make it display
something.

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com>

diff --git a/compat/mingw.c b/compat/mingw.c
index ee8f3be..431e322 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1417,6 +1417,7 @@ void mingw_open_html(const char *unixpath)
 			const char *, const char *, const char *, INT);
 	T ShellExecute;
 	HMODULE shell32;
+	int r;
 
 	shell32 = LoadLibrary("shell32.dll");
 	if (!shell32)
@@ -1426,9 +1427,12 @@ void mingw_open_html(const char *unixpath)
 		die("cannot run browser");
 
 	printf("Launching default browser to display HTML ...\n");
-	ShellExecute(NULL, "open", htmlpath, NULL, "\\", 0);
-
+	r = (int)ShellExecute(NULL, "open", htmlpath, NULL, "\\", SW_SHOWNORMAL);
 	FreeLibrary(shell32);
+	/* see the MSDN documentation referring to the result codes here */
+	if (r <= 32) {
+		die("failed to launch browser for %.*s", MAX_PATH, unixpath);
+	}
 }
 
 int link(const char *oldpath, const char *newpath)
-- 
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