Made ExifTags::tagTitle not inlined, based on strange link error reported

src/tags.cpp

@@ -408,6 +408,11 @@ namespace Exiv2 {
         return os.str();
     } // ExifTags::tagName
 
+    const char* ExifTags::tagTitle(uint16_t tag, IfdId ifdId)
+    {
+        return tagLabel(tag, ifdId); 
+    } // ExifTags::tagTitle
+
     const char* ExifTags::tagLabel(uint16_t tag, IfdId ifdId)
     {
         if (isExifIfd(ifdId)) {

src/tags.hpp

@@ -194,8 +194,7 @@ namespace Exiv2 {
           @param ifdId IFD id
           @return The title (label) of the tag.
          */
-        static const char* tagTitle(uint16_t tag, IfdId ifdId)
-            { return tagLabel(tag, ifdId); }
+        static const char* tagTitle(uint16_t tag, IfdId ifdId);
         /*!
           @brief Return the title (label) of the tag.