str[n]casecmp => OPENSSL_strncasecmp

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18069)
diff --git a/test/evp_extra_test.c b/test/evp_extra_test.c
index d8dafef..6db12e6 100644
--- a/test/evp_extra_test.c
+++ b/test/evp_extra_test.c
@@ -35,7 +35,6 @@
 #include "internal/nelem.h"
 #include "internal/sizes.h"
 #include "crypto/evp.h"
-#include "internal/e_os.h" /* strcasecmp */
 
 static OSSL_LIB_CTX *testctx = NULL;
 static char *testpropq = NULL;
@@ -1739,7 +1738,7 @@
         return 0;
 
     for (i = 0; i < OSSL_NELEM(ec_encodings); i++) {
-        if (strcasecmp(enc_name, ec_encodings[i].encoding_name) == 0) {
+        if (OPENSSL_strcasecmp(enc_name, ec_encodings[i].encoding_name) == 0) {
             *enc = ec_encodings[i].encoding;
             break;
         }