diff --git a/CMakeLists.txt b/CMakeLists.txt
index 84db4c84..89129617 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -176,17 +176,17 @@ target_include_directories(fmt PUBLIC
   
 set(FMT_DEBUG_POSTFIX d)
 
+set(FMT_DEBUG_POSTFIX d)
+
 set_target_properties(fmt PROPERTIES
-  OUTPUT_NAME fmt
-  VERSION ${FMT_VERSION}
-  SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
+  VERSION ${FMT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
   DEBUG_POSTFIX ${FMT_DEBUG_POSTFIX})
 
-# Configure pkg-config fmt.pc properly
+# Set FMT_LIB_NAME for pkg-config fmt.pc.
 get_target_property(FMT_LIB_NAME fmt OUTPUT_NAME)
-if(CMAKE_BUILD_TYPE STREQUAL "Debug")
+if (CMAKE_BUILD_TYPE STREQUAL "Debug")
   set(FMT_LIB_NAME ${FMT_LIB_NAME}${FMT_DEBUG_POSTFIX})
-endif()
+endif ()
 
 if (BUILD_SHARED_LIBS)
   if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
diff --git a/README.rst b/README.rst
index 34427826..af9f9252 100644
--- a/README.rst
+++ b/README.rst
@@ -33,7 +33,7 @@ Features
 * Safe `printf implementation
   <https://fmt.dev/latest/api.html#printf-formatting>`_ including
   the POSIX extension for positional arguments.
-* Implementation of `C++20 std::format <https://fmt.dev/Text%20Formatting.html>`__.
+* Implementation of `C++20 std::format <https://en.cppreference.com/w/cpp/utility/format>`__.
 * Support for user-defined types.
 * High performance: faster than common standard library implementations of
   `printf <https://en.cppreference.com/w/cpp/io/c/fprintf>`_ and
diff --git a/include/fmt/chrono.h b/include/fmt/chrono.h
index 80cbe697..421d464a 100644
--- a/include/fmt/chrono.h
+++ b/include/fmt/chrono.h
@@ -495,12 +495,12 @@ FMT_CONSTEXPR const Char* parse_chrono_format(const Char* begin,
       handler.on_text(ptr - 1, ptr);
       break;
     case 'n': {
-      const Char newline[]{'\n', 0};
+      const Char newline[] = {'\n'};
       handler.on_text(newline, newline + 1);
       break;
     }
     case 't': {
-      const Char tab[]{'\t', 0};
+      const Char tab[] = {'\t'};
       handler.on_text(tab, tab + 1);
       break;
     }
@@ -761,10 +761,10 @@ inline std::chrono::duration<Rep, std::milli> get_milliseconds(
 
 template <typename Char, typename Rep, typename OutputIt>
 OutputIt format_duration_value(OutputIt out, Rep val, int precision) {
-  const Char pr_f[]{'{', ':', '.', '{', '}', 'f', '}', 0};
+  const Char pr_f[] = {'{', ':', '.', '{', '}', 'f', '}', 0};
   if (precision >= 0) return format_to(out, pr_f, val, precision);
-  const Char fp_f[]{'{', ':', 'g', '}', 0};
-  const Char format[]{'{', '}', 0};
+  const Char fp_f[] = {'{', ':', 'g', '}', 0};
+  const Char format[] = {'{', '}', 0};
   return format_to(out, std::is_floating_point<Rep>::value ? fp_f : format,
                    val);
 }
@@ -779,9 +779,9 @@ OutputIt format_duration_unit(OutputIt out) {
     }
     return std::copy(s.begin(), s.end(), out);
   }
-  const Char num_f[]{'[', '{', '}', ']', 's', 0};
+  const Char num_f[] = {'[', '{', '}', ']', 's', 0};
   if (Period::den == 1) return format_to(out, num_f, Period::num);
-  const Char num_def_f[]{'[', '{', '}', '/', '{', '}', ']', 's', 0};
+  const Char num_def_f[] = {'[', '{', '}', '/', '{', '}', ']', 's', 0};
   return format_to(out, num_def_f, Period::num, Period::den);
 }
 
diff --git a/include/fmt/core.h b/include/fmt/core.h
index 5aefcc14..6824c125 100644
--- a/include/fmt/core.h
+++ b/include/fmt/core.h
@@ -185,11 +185,20 @@
 #  define FMT_CLASS_API
 #endif
 #ifndef FMT_API
-#  define FMT_API
+#  if FMT_GCC_VERSION || FMT_CLANG_VERSION
+#    define FMT_API __attribute__((visibility("default")))
+#    define FMT_EXTERN_TEMPLATE_API FMT_API
+#    define FMT_INSTANTIATION_DEF_API
+#  else
+#    define FMT_API
+#  endif
 #endif
 #ifndef FMT_EXTERN_TEMPLATE_API
 #  define FMT_EXTERN_TEMPLATE_API
 #endif
+#ifndef FMT_INSTANTIATION_DEF_API
+#  define FMT_INSTANTIATION_DEF_API FMT_API
+#endif
 
 #ifndef FMT_HEADER_ONLY
 #  define FMT_EXTERN extern
@@ -304,7 +313,8 @@ template <typename Char> class basic_string_view {
   size_t size_;
 
  public:
-  using char_type = Char;
+  using char_type FMT_DEPRECATED_ALIAS = Char;
+  using value_type = Char;
   using iterator = const Char*;
 
   FMT_CONSTEXPR basic_string_view() FMT_NOEXCEPT : data_(nullptr), size_(0) {}
@@ -462,7 +472,7 @@ struct is_string : std::is_class<decltype(to_string_view(std::declval<S>()))> {
 template <typename S, typename = void> struct char_t_impl {};
 template <typename S> struct char_t_impl<S, enable_if_t<is_string<S>::value>> {
   using result = decltype(to_string_view(std::declval<S>()));
-  using type = typename result::char_type;
+  using type = typename result::value_type;
 };
 
 struct error_handler {
diff --git a/src/format.cc b/src/format.cc
index e6fde7c3..9a9abf8d 100644
--- a/src/format.cc
+++ b/src/format.cc
@@ -121,7 +121,7 @@ template FMT_API char* internal::sprintf_format(long double,
                                                 internal::buffer<char>&,
                                                 sprintf_specs);
 
-template struct FMT_API internal::basic_data<void>;
+template struct FMT_INSTANTIATION_DEF_API internal::basic_data<void>;
 
 // Workaround a bug in MSVC2013 that prevents instantiation of format_float.
 int (*instantiate_format_float)(double, int, internal::float_specs,
diff --git a/test/core-test.cc b/test/core-test.cc
index 08f27024..8f233ece 100644
--- a/test/core-test.cc
+++ b/test/core-test.cc
@@ -402,8 +402,12 @@ TEST(ArgTest, VisitInvalidArg) {
   fmt::visit_format_arg(visitor, arg);
 }
 
+TEST(StringViewTest, ValueType) {
+  static_assert(std::is_same<string_view::value_type, char>::value, "");
+}
+
 TEST(StringViewTest, Length) {
-  // Test that StringRef::size() returns string length, not buffer size.
+  // Test that string_view::size() returns string length, not buffer size.
   char str[100] = "some string";
   EXPECT_EQ(std::strlen(str), string_view(str).size());
   EXPECT_LT(std::strlen(str), sizeof(str));