1>------ Build started: Project: OpenGL, Configuration: Debug Win32 ------ 1>SOIL.lib(stb_image_aug.o) : error LNK2019: unresolved external symbol __alloca referenced in function _stbi_zlib_decode_noheader_buffer 1>SOIL.lib(image_helper.o) : error LNK2019: unresolved external symbol _sqrtf referenced in function _RGBE_to_RGBdivA2 1>C:\Users\Pc\Documents\Visual Studio 2010\Projects\Project\Debug\OpenGL.exe : fatal error LNK1120: 2 unresolved externals ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
SOLVED:
Needed to rebuild the lib.
Used the vc8 project.