ATTRIBUTE_HIDDEN for libbfd.h

	* libbfd-in.h (ATTRIBUTE_HIDDEN): Define and use throughout.
	* configure.ac (HAVE_HIDDEN): Check compiler support for hidden
	visibility.
	* libbfd.h: Regenerate.
	* configure: Regenerate.
	* config.in: Regenerate.

1 files changed, 33 insertions, 0 deletions

diff --git a/bfd/configure b/bfd/configure
index eb415423ef0..edc1de9bced 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -14043,6 +14043,39 @@ fi
 
 
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking compiler support for hidden visibility" >&5
+$as_echo_n "checking compiler support for hidden visibility... " >&6; }
+if test "${bfd_cv_hidden+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+const char hw[] __attribute__ ((__visibility__ ("hidden"))) = "Hello, World\n";
+extern void print (const char *) __attribute__ ((__visibility__ ("hidden")));
+int
+main ()
+{
+print (hw);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  bfd_cv_hidden=yes
+else
+  bfd_cv_hidden=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $bfd_cv_hidden" >&5
+$as_echo "$bfd_cv_hidden" >&6; }
+if test $bfd_cv_hidden = yes; then
+
+$as_echo "#define HAVE_HIDDEN 1" >>confdefs.h
+
+fi
+
 # Check if linker supports --as-needed and --no-as-needed options
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker --as-needed support" >&5
 $as_echo_n "checking linker --as-needed support... " >&6; }