Use our own handle for EXPORT macro

FCITXCORE_EXPORT & FCITXUTILS_EXPORT will be different when other library reference it.
Should handle it ourselves to support windows.

Author: wengxt

src/lib/fcitx/addoninstance.h

@@ -163,6 +163,12 @@ class FCITXCORE_EXPORT AddonInstance {
 };
 } // namespace fcitx
 
+#if defined(_WIN32)
+#define FCITX_ADDON_EXPORT __declspec(dllexport)
+#else
+#define FCITX_ADDON_EXPORT __attribute__((visibility("default")))
+#endif
+
 #define FCITX_ADDON_DECLARE_FUNCTION(NAME, FUNCTION, SIGNATURE...)             \
     namespace fcitx {                                                          \
     template <>                                                                \
@@ -194,15 +200,15 @@ class FCITXCORE_EXPORT AddonInstance {
 
 #define FCITX_ADDON_FACTORY(ClassName)                                         \
     extern "C" {                                                               \
-    FCITXCORE_EXPORT ::fcitx::AddonFactory *fcitx_addon_factory_instance() {   \
+    FCITX_ADDON_EXPORT ::fcitx::AddonFactory *fcitx_addon_factory_instance() { \
         static ClassName factory;                                              \
         return &factory;                                                       \
     }                                                                          \
     }
 
 #define FCITX_ADDON_FACTORY_V2(AddonName, ClassName)                           \
     extern "C" {                                                               \
-    FCITXCORE_EXPORT ::fcitx::AddonFactory *                                   \
+    FCITX_ADDON_EXPORT ::fcitx::AddonFactory *                                 \
         fcitx_addon_factory_instance_##AddonName() {                           \
         static ClassName factory;                                              \
         return &factory;                                                       \

test/testemoji.cpp

@@ -37,7 +37,7 @@ int main() {
                                        pathfilter::extension(".dict"));
     // Check if all languages are loadable.
     for (const auto &[name, __] : files) {
-        std::string lang = name.stem();
+        std::string lang = name.stem().string();
         FCITX_ASSERT(emoji->call<IEmoji::check>(lang, false))
             << "Failed to load " << lang;
     }

test/testlibrary.cpp

@@ -6,17 +6,22 @@
  */
 
 #include <string.h>
-#include "fcitx-utils/fcitxutils_export.h"
 #include "fcitx-utils/library.h"
 #include "fcitx-utils/log.h"
 
 #define DATA "AAAAAAAAA"
 #define MAGIC "MAGIC_TEST_DATA"
 
+#if defined(_WIN32)
+#define MY_EXPORT __declspec(dllexport)
+#else
+#define MY_EXPORT __attribute__((visibility("default")))
+#endif
+
 extern "C" {
-FCITXUTILS_EXPORT char magic_test[] = MAGIC DATA;
+MY_EXPORT char magic_test[] = MAGIC DATA;
 
-FCITXUTILS_EXPORT int func() { return 0; }
+MY_EXPORT int func() { return 0; }
 }
 
 void parser(const char *data) { FCITX_ASSERT(strcmp(data, DATA) == 0); }