[Mingw-w64-public] Regarding mingw_getsp error

Dear Team, I have created libpng using x86_64-w64-mingw32-gcc compiler and I created a wrapper static library for that libpng using visual c++ for 64 bit windows 7 platform . while I try to run that library I got the following error's "error LNK2019: unresolved external symbol

[Mingw-w64-public] Regarding mingw_getsp error

Dear Team, I have created libpng using x86_64-w64-mingw32-gcc compiler and I created a wrapper static library for that libpng using visual c++ for 64 bit windows 7 platform . while I try to run that library I got the following error's "error LNK2019: unresolved external symbol