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-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index a8145e1590..0796a8a1fd 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -214,6 +214,11 @@
# define __ASSUME_SET_THREAD_AREA_SYSCALL 1
#endif
+/* The vfork syscall on x86 was definitely available in 2.4. */
+#if __LINUX_KERNEL_VERSION >= 132097 && defined __i386__
+# define __ASSUME_VFORK_SYSCALL 1
+#endif
+
/* There are an infinite number of PA-RISC kernel versions numbered
2.4.0. But they've not really been released as such. We require
and expect the final version here. */