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-rw-r--r--erts/emulator/sys/common/erl_osenv.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/erts/emulator/sys/common/erl_osenv.c b/erts/emulator/sys/common/erl_osenv.c
index 9f54d1dff0..487ff87116 100644
--- a/erts/emulator/sys/common/erl_osenv.c
+++ b/erts/emulator/sys/common/erl_osenv.c
@@ -75,7 +75,15 @@ static int compare_env_keys(const erts_osenv_data_t a, const erts_osenv_data_t b
#include "erl_rbtree.h"
static int compare_env_keys(const erts_osenv_data_t a, const erts_osenv_data_t b) {
- int relation = sys_memcmp(a.data, b.data, MIN(a.length, b.length));
+ int relation;
+
+#ifdef __WIN32__
+ /* Environment variables are case-insensitive on Windows. */
+ relation = _wcsnicmp((const WCHAR*)a.data, (const WCHAR*)b.data,
+ MIN(a.length, b.length) / sizeof(WCHAR));
+#else
+ relation = sys_memcmp(a.data, b.data, MIN(a.length, b.length));
+#endif
if(relation != 0) {
return relation;