[glibc/azanella/clang] x86: Use bool for C++ on x86.h

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=250a53976c41fd52dabf56044ec4721b8ec331a5

commit 250a53976c41fd52dabf56044ec4721b8ec331a5
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Thu Mar 31 10:40:02 2022 -0300

    x86: Use bool for C++ on x86.h
    
    Not all compilers might define C99 _Bool type on C++ mode in old
    standard modes (clang does not define for -std=c++98).

Diff:
---
 misc/sys/cdefs.h                                     | 7 +++++++
 sysdeps/unix/sysv/linux/x86/bits/platform/features.h | 2 +-
 sysdeps/x86/sys/platform/x86.h                       | 4 ++--
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index d1f411a57a..e8cf1d891f 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -881,4 +881,11 @@ _Static_assert (0, "IEEE 128-bits long double requires redirection on this platf
 # define __attribute_noclone__ /* Ignore.  */
 #endif
 
+/* Not all compiles support _Bool type in C++.  */
+#ifdef	__cplusplus
+# define __BOOLEAN bool
+#else
+# define __BOOLEAN _Bool
+#endif
+
 #endif	 /* sys/cdefs.h */
diff --git a/sysdeps/unix/sysv/linux/x86/bits/platform/features.h b/sysdeps/unix/sysv/linux/x86/bits/platform/features.h
index 7704febe92..0405ac51d9 100644
--- a/sysdeps/unix/sysv/linux/x86/bits/platform/features.h
+++ b/sysdeps/unix/sysv/linux/x86/bits/platform/features.h
@@ -28,7 +28,7 @@ enum
   x86_feature_1_shstk		= 1U << 1
 };
 
-static __inline__ _Bool
+static __inline__ __BOOLEAN
 x86_cpu_cet_active (unsigned int __index)
 {
 #ifdef __x86_64__
diff --git a/sysdeps/x86/sys/platform/x86.h b/sysdeps/x86/sys/platform/x86.h
index b8066ccc9f..8fc54b9b5c 100644
--- a/sysdeps/x86/sys/platform/x86.h
+++ b/sysdeps/x86/sys/platform/x86.h
@@ -30,7 +30,7 @@ __BEGIN_DECLS
 extern const struct cpuid_feature *__x86_get_cpuid_feature_leaf (unsigned int)
      __attribute__ ((pure));
 
-static __inline__ _Bool
+static __inline__ __BOOLEAN
 x86_cpu_present (unsigned int __index)
 {
   const struct cpuid_feature *__ptr = __x86_get_cpuid_feature_leaf
@@ -43,7 +43,7 @@ x86_cpu_present (unsigned int __index)
   return __ptr->cpuid_array[__reg] & (1 << __bit);
 }
 
-static __inline__ _Bool
+static __inline__ __BOOLEAN
 x86_cpu_active (unsigned int __index)
 {
   if (__index == x86_cpu_IBT || __index == x86_cpu_SHSTK)