jit/cache tests: Fix for powerpc64le CPUs

[Bruno Haible]

This patch fixes a test failure on Linux/powerpc64le.


2024-01-10  Bruno Haible  <bruno@clisp.org>

        jit/cache tests: Fix for powerpc64le CPUs.
        * tests/jit/test-cache.c: Treat Linux/powerpc64le *not* like AIX.

diff --git a/tests/jit/test-cache.c b/tests/jit/test-cache.c
index 18416f8f51..d19c720eb9 100644
--- a/tests/jit/test-cache.c
+++ b/tests/jit/test-cache.c
@@ -44,7 +44,7 @@
     however, is not universally true, see:
     
https://git.savannah.gnu.org/gitweb/?p=libffcall.git;a=blob;f=porting-tools/abis/function-pointer.txt.
  */
 
-#if ((defined __powerpc__ || defined __powerpc64__) && defined _AIX) || 
(defined __powerpc64__ && defined __linux__)
+#if ((defined __powerpc__ || defined __powerpc64__) && defined _AIX) || 
(defined __powerpc64__ && !defined __powerpc64_elfv2__ && defined __linux__)
 struct func
 {
   void *code_address;