Relocate alpha from ports to libc

Also fixed the following whitespace nits to satisfy the push:

sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent.
sysdeps/alpha/configure:1: new blank line at EOF.
sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent.
sysdeps/alpha/preconfigure:1: new blank line at EOF.
sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.

1 files changed, 17 insertions, 0 deletions

diff --git a/sysdeps/alpha/Versions b/sysdeps/alpha/Versions
new file mode 100644
index 0000000000..ae8fde7b23
--- /dev/null
+++ b/sysdeps/alpha/Versions
@@ -0,0 +1,17 @@
+libc {
+  GLIBC_2.0 {
+    # functions with special/multiple interfaces
+    __divqu; __remqu; __divqs; __remqs; __divlu; __remlu; __divls;
+    __remls; __divl; __reml; __divq; __remq; __divqu; __remqu;
+  }
+}
+libm {
+  GLIBC_2.0 {
+    # used in inline functions.
+    __atan2;
+  }
+  GLIBC_2.18 {
+    # forgotten when the symbols were added to glibc 2.15 for other targets
+    __sqrt_finite; __sqrtf_finite; __sqrtl_finite;
+  }
+}