2 files changed, 61 insertions, 0 deletions
diff --git a/sysdeps/alpha/elf/configure b/sysdeps/alpha/elf/configure
index 3346b8e48d..ab3c0932aa 100755
--- a/sysdeps/alpha/elf/configure
+++ b/sysdeps/alpha/elf/configure
@@ -58,3 +58,38 @@ EOF
 
 fi
 fi
+
+echo $ac_n "checking for GP relative module local relocs""... $ac_c" 1>&6
+echo "configure:20: checking for GP relative module local relocs" >&5
+if eval "test \"`echo '$''{'libc_cv_alpha_hidden_gprel'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.c <<\EOF
+static int bar;
+int baz __attribute__((visibility("hidden")));
+
+int foo (void)
+{
+  return bar + baz;
+}
+EOF
+
+libc_cv_alpha_hidden_gprel=no
+if { ac_try='${CC-cc} -S $CFLAGS -O2 -fpic conftest.c 1>&5'; { (eval echo configure:35: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+  if grep -q 'bar.*!gprel' conftest.s \
+     && grep -q 'baz.*!gprel' conftest.s \
+     && ! grep -q 'bar.*!literal' conftest.s \
+     && ! grep -q 'baz.*!literal' conftest.s; then
+    libc_cv_alpha_hidden_gprel=yes
+  fi
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$libc_cv_alpha_hidden_gprel" 1>&6
+if test $libc_cv_alpha_hidden_gprel = yes; then
+  cat >> confdefs.h <<\EOF
+#define PI_STATIC_AND_HIDDEN 1
+EOF
+
+fi
diff --git a/sysdeps/alpha/elf/configure.in b/sysdeps/alpha/elf/configure.in
index 7548046f50..29daf4fc9c 100644
--- a/sysdeps/alpha/elf/configure.in
+++ b/sysdeps/alpha/elf/configure.in
@@ -51,3 +51,29 @@ if test $libc_cv_alpha_tls = yes; then
   AC_DEFINE(HAVE_TLS_SUPPORT)
 fi
 fi
+
+AC_CACHE_CHECK(for GP relative module local relocs, libc_cv_alpha_hidden_gprel, [dnl
+cat > conftest.c <<\EOF
+static int bar;
+int baz __attribute__((visibility("hidden")));
+
+int foo (void)
+{
+  return bar + baz;
+}
+EOF
+dnl
+
+libc_cv_alpha_hidden_gprel=no
+if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fpic conftest.c 1>&AC_FD_CC); then
+  if grep -q 'bar.*!gprel' conftest.s \
+     && grep -q 'baz.*!gprel' conftest.s \
+     && ! grep -q 'bar.*!literal' conftest.s \
+     && ! grep -q 'baz.*!literal' conftest.s; then
+    libc_cv_alpha_hidden_gprel=yes
+  fi
+fi
+rm -f conftest*])
+if test $libc_cv_alpha_hidden_gprel = yes; then
+  AC_DEFINE(PI_STATIC_AND_HIDDEN)
+fi