win32: add (some) long path supportlong_paths

Use the longPathAware manifest entry to handle path lengths above
260.  This requires the LongPathsEnabled registry key to be set
at run-time.

Modify (some) WIN32 API calls to use the wide-character variant.

These features are controlled by the build-time configuration
option FEATURE_LONG_PATHS, which is not enabled by default.

1 files changed, 9 insertions, 0 deletions

diff --git a/Config.in b/Config.in
index 51de85284..39d9b0589 100644
--- a/Config.in
+++ b/Config.in
@@ -494,6 +494,15 @@ config FEATURE_PNG_ALL
 
 endchoice
 
+config FEATURE_LONG_PATHS
+        bool "Support for long paths"
+        default n
+        depends on FEATURE_RESOURCES
+        help
+        Allow paths longer than 260 characters. This is only supported
+        on Windows 10+. The registry key LongPathsEnabled must be set
+        to 1.
+
 config FEATURE_EURO
         bool "Support the euro currency symbol"
         default y