Add explicit instantiations for build_compressed_section_map().

gold/
	PR gold/20996
	* object.cc (build_compressed_section_map): Add explicit instantiations.

gold/ChangeLog

@@ -1,3 +1,8 @@
+2016-12-28  Cary Coutant  <ccoutant@gmail.com>
+
+	PR gold/20996
+	* object.cc (build_compressed_section_map): Add explicit instantiations.
+
 2016-12-27  Cary Coutant  <ccoutant@gmail.com>
 
 	PR ld/20995

gold/object.cc

@@ -3457,4 +3457,36 @@ Xindex::read_symtab_xindex<64, true>(Object*, unsigned int,
 				     const unsigned char*);
 #endif
 
+#ifdef HAVE_TARGET_32_LITTLE
+template
+Compressed_section_map*
+build_compressed_section_map<32, false>(const unsigned char*, unsigned int,
+					const char*, section_size_type, 
+					Object*, bool);
+#endif
+
+#ifdef HAVE_TARGET_32_BIG
+template
+Compressed_section_map*
+build_compressed_section_map<32, true>(const unsigned char*, unsigned int,
+					const char*, section_size_type, 
+					Object*, bool);
+#endif
+
+#ifdef HAVE_TARGET_64_LITTLE
+template
+Compressed_section_map*
+build_compressed_section_map<64, false>(const unsigned char*, unsigned int,
+					const char*, section_size_type, 
+					Object*, bool);
+#endif
+
+#ifdef HAVE_TARGET_64_BIG
+template
+Compressed_section_map*
+build_compressed_section_map<64, true>(const unsigned char*, unsigned int,
+					const char*, section_size_type, 
+					Object*, bool);
+#endif
+
 } // End namespace gold.