diff --git a/.gitignore b/.gitignore
index 46ce559..2c81960 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,9 @@
 # idea
 .idea/
-cmake-build-debug/
-cmake-build-release/
-cmake-build-minsizerel/
+cmake-build-*/
+
+# build
+build/
 
 # vs
 .vs/
diff --git a/expkg/src/BinaryOPT/BinaryReader.cpp b/expkg/src/BinaryOPT/BinaryReader.cpp
index 513d76b..09c2c33 100644
--- a/expkg/src/BinaryOPT/BinaryReader.cpp
+++ b/expkg/src/BinaryOPT/BinaryReader.cpp
@@ -43,10 +43,10 @@ namespace PKG
         return result;
     }
 
-    float_t BinaryReader::ReadSingle()
+    float BinaryReader::ReadSingle()
     {
-        float_t result = 0;
-        m_File.read(reinterpret_cast<char*>(&result), sizeof(float_t));
+        float result = 0;
+        m_File.read(reinterpret_cast<char*>(&result), sizeof(float));
         return result;
     }
 
diff --git a/expkg/src/BinaryOPT/BinaryReader.h b/expkg/src/BinaryOPT/BinaryReader.h
index 63d76b1..4246111 100644
--- a/expkg/src/BinaryOPT/BinaryReader.h
+++ b/expkg/src/BinaryOPT/BinaryReader.h
@@ -25,7 +25,7 @@ namespace PKG
 
         int32_t ReadInt32();
         uint32_t ReadUInt32();
-        float_t ReadSingle();
+        float ReadSingle();
         char ReadChar();
         std::string ReadString(uint32_t length);
         std::string ReadNString(int32_t maxLength = -1);
diff --git a/expkg/src/BinaryOPT/ImageReader.cpp b/expkg/src/BinaryOPT/ImageReader.cpp
index c628447..9704343 100644
--- a/expkg/src/BinaryOPT/ImageReader.cpp
+++ b/expkg/src/BinaryOPT/ImageReader.cpp
@@ -51,7 +51,7 @@ namespace PKG
 
             TexMipMap mipmap;
 
-            switch (container.ImageContainerVersion)
+            switch (container.imageContainerVersion)
             {
             case ImageContainerVersion::VERSION1:
                 mipmap = ReadMipMapV1(reader); break;
@@ -114,11 +114,11 @@ namespace PKG
 
         int version = std::stoi(container.Magic.substr(4, 4));
 
-        container.ImageContainerVersion = (ImageContainerVersion)version;
+        container.imageContainerVersion = (ImageContainerVersion)version;
 
-        if (container.ImageContainerVersion == ImageContainerVersion::VERSION4 && container.ImageFormat != FreeImageFormat::FIF_MP4)
+        if (container.imageContainerVersion == ImageContainerVersion::VERSION4 && container.ImageFormat != FreeImageFormat::FIF_MP4)
         {
-            container.ImageContainerVersion = ImageContainerVersion::VERSION3;
+            container.imageContainerVersion = ImageContainerVersion::VERSION3;
         }
 
         for (int i = 0; i < imageCount; i++)
diff --git a/expkg/src/Core.h b/expkg/src/Core.h
index ebcf5ae..d605110 100644
--- a/expkg/src/Core.h
+++ b/expkg/src/Core.h
@@ -6,10 +6,14 @@
 #define CORE_H
 
 #ifdef PKG_SHARED
-    #ifdef PKG_BUILD_DLL
-        #define PKG_API __declspec(dllexport)
+    #ifdef __WIN32__
+        #ifdef PKG_BUILD_DLL
+            #define PKG_API __declspec(dllexport)
+        #else
+            #define PKG_API __declspec(dllimport)
+        #endif
     #else
-        #define PKG_API __declspec(dllimport)
+        #define PKG_API
     #endif
 #else
     #define PKG_API
diff --git a/expkg/src/Tex/TexImageContainer.h b/expkg/src/Tex/TexImageContainer.h
index 548e8c2..d9245ae 100644
--- a/expkg/src/Tex/TexImageContainer.h
+++ b/expkg/src/Tex/TexImageContainer.h
@@ -22,7 +22,8 @@ namespace PKG
     public:
         std::string Magic;
         FreeImageFormat ImageFormat{};
-        ImageContainerVersion ImageContainerVersion;
+        // name conflict
+        ImageContainerVersion imageContainerVersion;
 
         std::vector<TexImage> Images;
     };