$NetBSD$

portability

--- configure.orig	2022-09-16 13:39:33.834688191 +0000
+++ configure
@@ -14592,7 +14592,7 @@ printf %s "checking whether double-preci
 
   $CC $CFLAGS -c $srcdir/src/elpa2/kernels/asm_x86_64_double_precision.s -o conftest.o 2>&5
 
-  if test "$?" == 0; then
+  if test "$?" = 0; then
     can_compile_sse_asm_double=yes
   else
     can_compile_sse_asm_double=no
@@ -14610,7 +14610,7 @@ printf %s "checking whether single-preci
 
     $CC $CFLAGS -c $srcdir/src/elpa2/kernels/asm_x86_64_single_precision.s -o conftest.o 2>&5
 
-    if test "$?" == 0; then
+    if test "$?" = 0; then
       can_compile_sse_asm_single=yes
     else
       can_compile_sse_asm_single=no