[glibc/azanella/clang] elf: Disable unload4 test on clang

[Adhemerval Zanella]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6f15936b29e841899de2f64cf19416b652e33ace

commit 6f15936b29e841899de2f64cf19416b652e33ace
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Fri Aug 26 09:24:25 2022 -0300

    elf: Disable unload4 test on clang
    
    It triggers and infintie loop.

Diff:
---
 elf/unload4.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/elf/unload4.c b/elf/unload4.c
index 6e171a22e0..97ab6dafcc 100644
--- a/elf/unload4.c
+++ b/elf/unload4.c
@@ -5,6 +5,10 @@
 int
 main (void)
 {
+#ifdef __clang__
+  /* It triggers an infinite loop on clang.  */
+  return 77;
+#else
 #ifdef M_PERTURB
   mallopt (M_PERTURB, 0xaa);
 #endif
@@ -45,4 +49,5 @@ main (void)
     }
   dlclose (h);
   return 0;
+#endif
 }