linux: components support for base/

base/logging.h

Index: base/logging.h
diff --git a/base/logging.h b/base/logging.h
index 1d094e3cbdd04327ac500e5bf530ff2b25b42d2d..54d6dfd00a329e52b721bb3aeea88d78de8dc83d 100644
--- a/base/logging.h
+++ b/base/logging.h
@@ -468,7 +468,7 @@ std::string* MakeCheckOpString(const t1& v1, const t2& v2, const char* names) {
 }
 
 // MSVC doesn't like complex extern templates and DLLs.
-#if !defined(COMPILER_MSVC)
+#if !defined(COMPILER_MSVC) && defined(BASE_DLL)
 // Commonly used instantiations of MakeCheckOpString<>. Explicitly instantiated
 // in logging.cc.
 extern template std::string* MakeCheckOpString<int, int>(
@@ -842,7 +842,7 @@ class BASE_API Win32ErrorLogMessage {
 };
 #elif defined(OS_POSIX)
 // Appends a formatted system message of the errno type
-class ErrnoLogMessage {
+class BASE_API ErrnoLogMessage {
  public:
   ErrnoLogMessage(const char* file,
                   int line,