even the hidden version of the weaks in libc (as strong in libpthread) have to be weaks

libc/misc/internals/__errno_location.c

@@ -8,5 +8,5 @@ int * weak_const_function __errno_location (void)
     return &errno;
 }
 #ifdef IS_IN_libc /* not really need, only to keep in sync w/ libc_hidden_proto */
-libc_hidden_def(__errno_location)
+libc_hidden_weak(__errno_location)
 #endif

libc/misc/internals/__h_errno_location.c

@@ -10,4 +10,4 @@ int * weak_const_function __h_errno_location (void)
 {
     return &h_errno;
 }
-libc_hidden_def(__h_errno_location)
+libc_hidden_weak(__h_errno_location)

libc/signal/sigaction.c

@@ -111,5 +111,5 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
 #ifndef LIBC_SIGACTION
 libc_hidden_proto(sigaction)
 weak_alias(__libc_sigaction,sigaction)
-libc_hidden_def(sigaction)
+libc_hidden_weak(sigaction)
 #endif

libc/sysdeps/linux/arm/sigaction.c

@@ -130,5 +130,5 @@ int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oa
 #ifndef LIBC_SIGACTION
 libc_hidden_proto(sigaction)
 weak_alias(__libc_sigaction,sigaction)
-libc_hidden_def(sigaction)
+libc_hidden_weak(sigaction)
 #endif

libc/sysdeps/linux/common/nanosleep.c

@@ -16,4 +16,4 @@ _syscall2(int, __libc_nanosleep, const struct timespec *, req,
 		  struct timespec *, rem);
 libc_hidden_proto(nanosleep)
 weak_alias(__libc_nanosleep,nanosleep)
-libc_hidden_def(nanosleep)
+libc_hidden_weak(nanosleep)

libc/sysdeps/linux/common/waitpid.c

@@ -19,4 +19,4 @@ __pid_t __libc_waitpid(__pid_t pid, int *wait_stat, int options)
 }
 libc_hidden_proto(waitpid)
 weak_alias(__libc_waitpid,waitpid)
-libc_hidden_def(waitpid)
+libc_hidden_weak(waitpid)

libc/sysdeps/linux/i386/sigaction.c

@@ -126,7 +126,7 @@ int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oa
 #ifndef LIBC_SIGACTION
 libc_hidden_proto(sigaction)
 weak_alias(__libc_sigaction,sigaction)
-libc_hidden_def(sigaction)
+libc_hidden_weak(sigaction)
 #endif
 
 

libc/sysdeps/linux/mips/sigaction.c

@@ -117,5 +117,5 @@ int __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oa
 #ifndef LIBC_SIGACTION
 libc_hidden_proto(sigaction)
 weak_alias(__libc_sigaction,sigaction)
-libc_hidden_def(sigaction)
+libc_hidden_weak(sigaction)
 #endif

libc/sysdeps/linux/x86_64/sigaction.c

@@ -122,7 +122,7 @@ __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
 #ifndef LIBC_SIGACTION
 libc_hidden_proto(sigaction)
 weak_alias(__libc_sigaction,sigaction)
-libc_hidden_def(sigaction)
+libc_hidden_weak(sigaction)
 #endif
 
 /* NOTE: Please think twice before making any changes to the bits of