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-rw-r--r--libc-top-half/musl/include/pthread.h2
-rw-r--r--libc-top-half/musl/include/unistd.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/libc-top-half/musl/include/pthread.h b/libc-top-half/musl/include/pthread.h
index 01fe5f2..b14fe82 100644
--- a/libc-top-half/musl/include/pthread.h
+++ b/libc-top-half/musl/include/pthread.h
@@ -85,7 +85,9 @@ extern "C" {
int pthread_create(pthread_t *__restrict, const pthread_attr_t *__restrict, void *(*)(void *), void *__restrict);
int pthread_detach(pthread_t);
+#ifdef __wasilibc_unmodified_upstream
_Noreturn void pthread_exit(void *);
+#endif
int pthread_join(pthread_t, void **);
#ifdef __GNUC__
diff --git a/libc-top-half/musl/include/unistd.h b/libc-top-half/musl/include/unistd.h
index b5cb5c6..0be83e3 100644
--- a/libc-top-half/musl/include/unistd.h
+++ b/libc-top-half/musl/include/unistd.h
@@ -336,7 +336,9 @@ pid_t gettid(void);
#endif
#define _POSIX_VDISABLE 0
+#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
#define _POSIX_THREADS _POSIX_VERSION
+#endif
#define _POSIX_THREAD_PROCESS_SHARED _POSIX_VERSION
#define _POSIX_THREAD_SAFE_FUNCTIONS _POSIX_VERSION
#define _POSIX_THREAD_ATTR_STACKADDR _POSIX_VERSION