[RFC PATCH glibc 13/34] x86-64: Disable prefer_map_32bit_exec tunable on non-Linux

[Sergey Bugaev]

While we could/should implement MAP_32BIT for the Hurd port by setting
all the high bits of mask in a vm_map () call, neither MAP_32BIT nor
glibc.cpu.prefer_map_32bit_exec exist on the Hurd as of now. Compile
this code out to fix build failures.

Signed-off-by: Sergey Bugaev <buga...@gmail.com>
---
 sysdeps/x86/cpu-features.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
index 822688e2..78631d7a 100644
--- a/sysdeps/x86/cpu-features.c
+++ b/sysdeps/x86/cpu-features.c
@@ -27,7 +27,7 @@
 extern void TUNABLE_CALLBACK (set_hwcaps) (tunable_val_t *)
   attribute_hidden;
 
-# ifdef __LP64__
+# if defined (__LP64__) && defined (__linux__)
 static void
 TUNABLE_CALLBACK (set_prefer_map_32bit_exec) (tunable_val_t *valp)
 {
@@ -715,7 +715,7 @@ no_cpuid:
 #if HAVE_TUNABLES
   TUNABLE_GET (hwcaps, tunable_val_t *, TUNABLE_CALLBACK (set_hwcaps));
 
-# ifdef __LP64__
+# if defined (__LP64__) && defined (__linux__)
   TUNABLE_GET (prefer_map_32bit_exec, tunable_val_t *,
               TUNABLE_CALLBACK (set_prefer_map_32bit_exec));
 # endif
-- 
2.39.2