These are all in air.c! I didn't modify any source. I use code::blocks The errors were: C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b 3 735bb\src\air.c|2|error: air.h: No such file or directory| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|3|error: powder.h: No such file or directory| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|4|error: defines.h: No such file or directory| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|7|error: 'YRES' undeclared here (not in a function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|7|error: 'CELL' undeclared here (not in a function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|7|error: 'XRES' undeclared here (not in a function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c||In function 'update_air':| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|44|error: 'TSTEPP' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|44|error: (Each undeclared identifier is reported only once| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|44|error: for each function it appears in.)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|53|error: 'VLOSS' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|55|error: 'TSTEPV' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|57|error: 'bmap' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|57|error: 'WL_WALL' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|58|error: 'WL_WALLELEC' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|59|error: 'WL_EWALL' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|59|error: 'emap' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|105|error: 'VADV' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|121|error: 'WL_FAN' undeclared (first use in this function)| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|138|warning: implicit declaration of function 'memcpy'| C:\Users\***\Downloads\FacialTurd-The-Powder-Toy-b3735bb\FacialTurd-The-Powder-Toy-b3 735bb\src\air.c|138|warning: incompatible implicit declaration of built-in function 'memcpy'| ||=== Build finished: 18 errors, 2 warnings ===|
Now go to Search directories ->' Compiler, still in Build Options. Add the following: The includes folder of the source C:\MinGW\include\SDL C:\MinGW\include\