sis/lib directory:libsis32.a – 32-bit Linux build, gcc -m32 toolchainlibsis32osx.a – 32-bit Mac OS X build, mp-gcc5 -m32 toolchainlibsis32win.a - 32-bit Windows build, i686-w64-mingw32-gcc toolchainMakefile:OS = win – WindowsOS = osx – Mac OS XOS =  – Linuxmake clean # optional make
While 64-bit versions of Petrify can also be built, only the Linux 64-bit version is stable. If you decide to build a 64-bit version, then put libsis64.a of SIS library in sis directory and set ARCH=64 variable in the Makefile.