Explicitly qualify specializations of elfutils::to_stringdwarflint

I attempted to build the "dwarflint" branch with gcc 7.3.1 , but ran
into various problems of the form:

c++/known.cc:220:1: error: explicit specialization of ‘template<class type> std::__cxx11::string elfutils::to_string(const type&)’ outside its namespace must use a nested-name-specifier [-fpermissive]
 to_string<dwarf::dwarf_enum> (const dwarf::dwarf_enum &value)
 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

The fix appears to be trivial.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>

5 files changed, 21 insertions, 8 deletions

diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index e6e7f3be..9696d4d7 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,3 +1,16 @@
+2018-02-26  David Malcolm  <dmalcolm@redhat.com>
+
+	* c++/edit-values.cc (to_string<dwarf_edit::attribute>):
+	Explicitly qualify with "elfutils::".
+	* c++/known.cc (to_string<dwarf::dwarf_enum>): Likewise.
+	(to_string<dwarf_data::dwarf_enum>): Likewise.
+	* c++/output-values.cc (to_string<dwarf_output::attribute>):
+	Likewise.
+	* c++/values.cc (to_string<dwarf::attribute>): Likewise.
+	(to_string<dwarf::attr_value>): Likewise.
+	(to_string<dwarf_edit::attr_value>): Likewise.
+	(to_string<dwarf_output::attr_value>): Likewise.
+
 2017-10-03  Mark Wielaard  <mark@klomp.org>
 
 	* libdw.h: Define LIBDW_CIE_ID and use it in dwarf_cfi_cie_p.
diff --git a/libdw/c++/edit-values.cc b/libdw/c++/edit-values.cc
index aefb5fd1..ca83a967 100644
--- a/libdw/c++/edit-values.cc
+++ b/libdw/c++/edit-values.cc
@@ -41,7 +41,7 @@ template class dwarf_data::value<dwarf_edit>;
 
 template<>
 std::string
-to_string<dwarf_edit::attribute> (const dwarf_edit::attribute &attr)
+elfutils::to_string<dwarf_edit::attribute> (const dwarf_edit::attribute &attr)
 {
   return attribute_string (attr);
 }
diff --git a/libdw/c++/known.cc b/libdw/c++/known.cc
index bd84f52c..cb5fe693 100644
--- a/libdw/c++/known.cc
+++ b/libdw/c++/known.cc
@@ -217,14 +217,14 @@ enum_string (const value_type &value)
 
 template<>
 string
-to_string<dwarf::dwarf_enum> (const dwarf::dwarf_enum &value)
+elfutils::to_string<dwarf::dwarf_enum> (const dwarf::dwarf_enum &value)
 {
   return enum_string (value);
 }
 
 template<>
 string
-to_string<dwarf_data::dwarf_enum> (const dwarf_data::dwarf_enum &value)
+elfutils::to_string<dwarf_data::dwarf_enum> (const dwarf_data::dwarf_enum &value)
 {
   return enum_string (value);
 }
diff --git a/libdw/c++/output-values.cc b/libdw/c++/output-values.cc
index 199c72bd..60abc0b5 100644
--- a/libdw/c++/output-values.cc
+++ b/libdw/c++/output-values.cc
@@ -46,7 +46,7 @@ template class dwarf_output::copier<dwarf_edit>;
 
 template<>
 std::string
-to_string<dwarf_output::attribute> (const dwarf_output::attribute &attr)
+elfutils::to_string<dwarf_output::attribute> (const dwarf_output::attribute &attr)
 {
   return attribute_string (attr);
 }
diff --git a/libdw/c++/values.cc b/libdw/c++/values.cc
index 335074fb..c70d793f 100644
--- a/libdw/c++/values.cc
+++ b/libdw/c++/values.cc
@@ -227,28 +227,28 @@ value_string (const value_type &value)
 
 template<>
 string
-to_string<dwarf::attribute> (const dwarf::attribute &attr)
+elfutils::to_string<dwarf::attribute> (const dwarf::attribute &attr)
 {
   return attribute_string (attr);
 }
 
 template<>
 string
-to_string<dwarf::attr_value> (const dwarf::attr_value &value)
+elfutils::to_string<dwarf::attr_value> (const dwarf::attr_value &value)
 {
   return value_string (value);
 }
 
 template<>
 string
-to_string<dwarf_edit::attr_value> (const dwarf_edit::attr_value &value)
+elfutils::to_string<dwarf_edit::attr_value> (const dwarf_edit::attr_value &value)
 {
   return value_string (value);
 }
 
 template<>
 string
-to_string<dwarf_output::attr_value> (const dwarf_output::attr_value &value)
+elfutils::to_string<dwarf_output::attr_value> (const dwarf_output::attr_value &value)
 {
   return value_string (value);
 }