Added patch fix detection of case-insensitive systems in MSYS2.

README.md

@@ -39,10 +39,11 @@ Wine. All those differences are also documented on the
 Included bug fixes and improvements
 -----------------------------------
 
-**Bug fixes and features included in the next upcoming release [11]:**
+**Bug fixes and features included in the next upcoming release [12]:**
 
 * Add IDragSourceHelper stub interface ([Wine Bug #24699](https://bugs.winehq.org/show_bug.cgi?id=24699))
 * Catch invalid memory accesses in imagehlp.CheckSumMappedFile
+* Fix detection of case-insensitive systems in MSYS2
 * Fix implementation of ntdll.MapViewOfSection
 * Implement enumeration of sound devices and basic properties to dxdiagn ([Wine Bug #32613](https://bugs.winehq.org/show_bug.cgi?id=32613))
 * Implement shell32 NewMenu class with new folder item ([Wine Bug #24812](https://bugs.winehq.org/show_bug.cgi?id=24812))

debian/changelog

@@ -14,6 +14,7 @@ wine-staging (1.7.50) UNRELEASED; urgency=low
   * Added patch to implement shell32 NewMenu class with new folder item.
   * Added patch to report correct ObjectName for NamedPipe wineserver objects
     (fixes Wine Staging Bug #363).
+  * Added patch fix detection of case-insensitive systems in MSYS2.
   * Removed patch to move security cookie initialization from memory management
     to loader.
  -- Sebastian Lackner <sebastian@fds-team.de>  Tue, 11 Aug 2015 06:12:14 +0200

patches/ntdll-SystemRoot_Symlink/0001-ntdll-Add-special-handling-for-SystemRoot-to-satisfy.patch

@@ -0,0 +1,52 @@
+From 09014908dd815df48eb47e792fa5ad44ba34f5f2 Mon Sep 17 00:00:00 2001
+From: Sebastian Lackner <sebastian@fds-team.de>
+Date: Mon, 17 Aug 2015 06:17:33 +0200
+Subject: ntdll: Add special handling for \SystemRoot to satisfy MSYS2
+ case-insensitive system check.
+
+---
+ dlls/ntdll/om.c | 13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+diff --git a/dlls/ntdll/om.c b/dlls/ntdll/om.c
+index 6527501..566169a 100644
+--- a/dlls/ntdll/om.c
++++ b/dlls/ntdll/om.c
+@@ -39,6 +39,7 @@
+ #include "ntdll_misc.h"
+ #include "wine/server.h"
+ #include "wine/exception.h"
++#include "wine/unicode.h"
+ 
+ WINE_DEFAULT_DEBUG_CHANNEL(ntdll);
+ 
+@@ -614,7 +615,9 @@ NTSTATUS WINAPI NtQueryDirectoryObject(HANDLE handle, PDIRECTORY_BASIC_INFORMATI
+ NTSTATUS WINAPI NtOpenSymbolicLinkObject(OUT PHANDLE LinkHandle, IN ACCESS_MASK DesiredAccess,
+                                          IN POBJECT_ATTRIBUTES ObjectAttributes)
+ {
++    static const WCHAR SystemRootW[] = {'\\','S','y','s','t','e','m','R','o','o','t'};
+     NTSTATUS ret;
++
+     TRACE("(%p,0x%08x,%s)\n",LinkHandle, DesiredAccess, debugstr_ObjectAttributes(ObjectAttributes));
+ 
+     if (!LinkHandle) return STATUS_ACCESS_VIOLATION;
+@@ -629,6 +632,16 @@ NTSTATUS WINAPI NtOpenSymbolicLinkObject(OUT PHANDLE LinkHandle, IN ACCESS_MASK
+             return STATUS_OBJECT_PATH_SYNTAX_BAD;
+     }
+ 
++    /* MSYS2 tries to open \\SYSTEMROOT to check for case-insensitive systems */
++    if (!DesiredAccess && !ObjectAttributes->RootDirectory &&
++        ObjectAttributes->ObjectName->Length == sizeof(SystemRootW) &&
++        !memicmpW( ObjectAttributes->ObjectName->Buffer, SystemRootW,
++                   sizeof(SystemRootW)/sizeof(WCHAR) ))
++    {
++        TRACE( "returning STATUS_ACCESS_DENIED\n" );
++        return STATUS_ACCESS_DENIED;
++    }
++
+     SERVER_START_REQ(open_symlink)
+     {
+         req->access = DesiredAccess;
+-- 
+2.5.0
+

patches/ntdll-SystemRoot_Symlink/definition

@@ -0,0 +1,2 @@
+Fixes: Fix detection of case-insensitive systems in MSYS2
+Depends: ntdll-Exception

patches/patchinstall.sh

@@ -182,6 +182,7 @@ patch_enable_all ()
 	enable_ntdll_NtSetLdtEntries="$1"
 	enable_ntdll_Pipe_SpecialCharacters="$1"
 	enable_ntdll_RtlIpStringToAddress="$1"
+	enable_ntdll_SystemRoot_Symlink="$1"
 	enable_ntdll_ThreadTime="$1"
 	enable_ntdll_Threading="$1"
 	enable_ntdll_User_Shared_Data="$1"
@@ -638,6 +639,9 @@ patch_enable ()
 		ntdll-RtlIpStringToAddress)
 			enable_ntdll_RtlIpStringToAddress="$2"
 			;;
+		ntdll-SystemRoot_Symlink)
+			enable_ntdll_SystemRoot_Symlink="$2"
+			;;
 		ntdll-ThreadTime)
 			enable_ntdll_ThreadTime="$2"
 			;;
@@ -1792,6 +1796,13 @@ if test "$enable_ntdll_WriteWatches" -eq 1; then
 	enable_ws2_32_WriteWatches=1
 fi
 
+if test "$enable_ntdll_SystemRoot_Symlink" -eq 1; then
+	if test "$enable_ntdll_Exception" -gt 1; then
+		abort "Patchset ntdll-Exception disabled, but ntdll-SystemRoot_Symlink depends on that."
+	fi
+	enable_ntdll_Exception=1
+fi
+
 if test "$enable_ntdll_Junction_Points" -eq 1; then
 	if test "$enable_ntdll_Fix_Free" -gt 1; then
 		abort "Patchset ntdll-Fix_Free disabled, but ntdll-Junction_Points depends on that."
@@ -3964,6 +3975,21 @@ if test "$enable_ntdll_RtlIpStringToAddress" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset ntdll-SystemRoot_Symlink
+# |
+# | This patchset has the following dependencies:
+# |   *	ntdll-Exception
+# |
+# | Modified files:
+# |   *	dlls/ntdll/om.c
+# |
+if test "$enable_ntdll_SystemRoot_Symlink" -eq 1; then
+	patch_apply ntdll-SystemRoot_Symlink/0001-ntdll-Add-special-handling-for-SystemRoot-to-satisfy.patch
+	(
+		echo '+    { "Sebastian Lackner", "ntdll: Add special handling for \\\\SystemRoot to satisfy MSYS2 case-insensitive system check.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset ntdll-ThreadTime
 # |
 # | This patchset fixes the following Wine bugs: