--- lodepng.h	2020-09-11 08:41:22.280259945 +0000
+++ lodepng2.h	2020-09-11 08:45:17.134266042 +0000
@@ -89,6 +89,8 @@
 #endif
 #endif
 
+
+
 #ifdef LODEPNG_COMPILE_CPP
 #include <vector>
 #include <string>
@@ -126,6 +128,9 @@
 bitdepth: the desired bit depth for the raw output image. See explanation on PNG color types.
 Return value: LodePNG error code (0 means no error).
 */
+
+extern "C" {
+
 unsigned lodepng_decode_memory(unsigned char** out, unsigned* w, unsigned* h,
                                const unsigned char* in, size_t insize,
                                LodePNGColorType colortype, unsigned bitdepth);
@@ -154,10 +159,12 @@
 /*Same as lodepng_decode_file, but always decodes to 24-bit RGB raw image.*/
 unsigned lodepng_decode24_file(unsigned char** out, unsigned* w, unsigned* h,
                                const char* filename);
+
 #endif /*LODEPNG_COMPILE_DISK*/
 #endif /*LODEPNG_COMPILE_DECODER*/
 
 
+
 #ifdef LODEPNG_COMPILE_ENCODER
 /*
 Converts raw pixel data into a PNG image in memory. The colortype and bitdepth
@@ -204,6 +211,9 @@
 /*Same as lodepng_encode_file, but always encodes from 24-bit RGB raw image.*/
 unsigned lodepng_encode24_file(const char* filename,
                                const unsigned char* image, unsigned w, unsigned h);
+
+}
+
 #endif /*LODEPNG_COMPILE_DISK*/
 #endif /*LODEPNG_COMPILE_ENCODER*/
 
@@ -219,6 +229,8 @@
 unsigned decode(std::vector<unsigned char>& out, unsigned& w, unsigned& h,
                 const std::vector<unsigned char>& in,
                 LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+
+
 #ifdef LODEPNG_COMPILE_DISK
 /*
 Converts PNG file from disk to raw pixel data in memory.
@@ -251,6 +263,7 @@
 unsigned encode(const std::string& filename,
                 const std::vector<unsigned char>& in, unsigned w, unsigned h,
                 LodePNGColorType colortype = LCT_RGBA, unsigned bitdepth = 8);
+
 #endif /* LODEPNG_COMPILE_DISK */
 #endif /* LODEPNG_COMPILE_ENCODER */
 } /* namespace lodepng */
@@ -318,6 +331,7 @@
 
 extern const LodePNGCompressSettings lodepng_default_compress_settings;
 void lodepng_compress_settings_init(LodePNGCompressSettings* settings);
+
 #endif /*LODEPNG_COMPILE_ENCODER*/
 
 #ifdef LODEPNG_COMPILE_PNG
@@ -943,6 +957,8 @@
 #endif /*LODEPNG_COMPILE_ZLIB*/
 
 #ifdef LODEPNG_COMPILE_DISK
+
+extern "C" {
 /*
 Load a file from disk into buffer. The function allocates the out buffer, and
 after usage you should free it.
@@ -962,6 +978,7 @@
 return value: error code (0 means ok)
 */
 unsigned lodepng_save_file(const unsigned char* buffer, size_t buffersize, const char* filename);
+}
 #endif /*LODEPNG_COMPILE_DISK*/
 
 #ifdef LODEPNG_COMPILE_CPP