Replace dangling pointer workaround with a patch from upstream

nss-3.89-dangling.patch

@@ -0,0 +1,78 @@
+diff --git a/cmd/ecperf/ecperf.c b/cmd/ecperf/ecperf.c
+--- a/cmd/ecperf/ecperf.c
++++ b/cmd/ecperf/ecperf.c
+@@ -51,10 +51,11 @@
+     int iters = threadData->iters;
+     unsigned char sigData[256];
+     SECItem sig;
+     CK_SESSION_HANDLE session;
+     CK_RV crv;
++    void *tmp = NULL;
+ 
+     threadData->status = SECSuccess;
+     threadData->count = 0;
+ 
+     /* get our thread's session */
+@@ -66,10 +67,11 @@
+     }
+ 
+     if (threadData->isSign) {
+         sig.data = sigData;
+         sig.len = sizeof(sigData);
++        tmp = threadData->p2;
+         threadData->p2 = (void *)&sig;
+     }
+ 
+     while (iters--) {
+         threadData->status = (*op)(session, threadData->p1,
+@@ -77,27 +79,33 @@
+         if (threadData->status != SECSuccess) {
+             break;
+         }
+         threadData->count++;
+     }
++
++    if (threadData->isSign) {
++        threadData->p2 = tmp;
++    }
+     return;
+ }
+ 
+ void
+ genericThread(void *data)
+ {
+     ThreadData *threadData = (ThreadData *)data;
+     int iters = threadData->iters;
+     unsigned char sigData[256];
+     SECItem sig;
++    void *tmp = NULL;
+ 
+     threadData->status = SECSuccess;
+     threadData->count = 0;
+ 
+     if (threadData->isSign) {
+         sig.data = sigData;
+         sig.len = sizeof(sigData);
++        tmp = threadData->p2;
+         threadData->p2 = (void *)&sig;
+     }
+ 
+     while (iters--) {
+         threadData->status = (*threadData->op)(threadData->p1,
+@@ -105,10 +113,14 @@
+         if (threadData->status != SECSuccess) {
+             break;
+         }
+         threadData->count++;
+     }
++
++    if (threadData->isSign) {
++        threadData->p2 = tmp;
++    }
+     return;
+ }
+ 
+ /* Time iter repetitions of operation op. */
+ SECStatus
+
+

nss.spec

@@ -134,6 +134,11 @@ Patch40:          nss-no-dbm-man-page.patch
 # https://bugzilla.mozilla.org/show_bug.cgi?id=1774659
 Patch51:	nss-3.79-dbtool.patch
 
+# Fix build with recent GCC 13
+# https://bugzilla.mozilla.org/show_bug.cgi?id=1826650
+# https://bugzilla.mozilla.org/attachment.cgi?id=9327255
+Patch52:          nss-3.89-dangling.patch
+
 Patch100:         nspr-config-pc.patch
 Patch101:         nspr-gcc-atomics.patch
 
@@ -387,10 +392,6 @@ export XCFLAGS="$XCFLAGS -Wno-error=maybe-uninitialized"
 # Similarly, but for gcc-11
 export XCFLAGS="$XCFLAGS -Wno-array-parameter"
 
-# aaaand gcc-133:
-# https://bugzilla.mozilla.org/show_bug.cgi?id=1826650
-export XCFLAGS="$XCFLAGS -Wno-dangling-pointer"
-
 export LDFLAGS=$RPM_LD_FLAGS
 
 export DSO_LDOPTS=$RPM_LD_FLAGS