winsdk: Fix releases showing as older than alphas

1 files changed, 9 insertions, 0 deletions

diff --git a/windowsRuntimeInstaller/configure_runtime.c b/windowsRuntimeInstaller/configure_runtime.c
index bc5a6b04..a8460a16 100644
--- a/windowsRuntimeInstaller/configure_runtime.c
+++ b/windowsRuntimeInstaller/configure_runtime.c
@@ -270,6 +270,7 @@ int add_explicit_layers(FILE* log, const char* install_path, enum Platform platf
 

 int compare_versions(const struct SDKVersion* a, const struct SDKVersion* b)

 {

+    // Compare numerical versions

     for(int i = 0; i < 4; ++i) {

         long* a_current = ((long*) a) + i;

         long* b_current = ((long*) b) + i;

@@ -281,6 +282,14 @@ int compare_versions(const struct SDKVersion* a, const struct SDKVersion* b)
         }

     }

     

+    // An empty string should be considered greater (and therefore more recent) than one with test

+    if(a->extended[0] == '\0' && b->extended[0] != '\0') {

+        return 1;

+    } else if(b->extended[0] == '\0' && a->extended[0] != '\0') {

+        return -1;

+    }

+

+    // Otherwise, just do a strncmp

     return strncmp(a->extended, b->extended, SDK_VERSION_BUFFER_SIZE);

 }