* A C99 compiler (gcc and icc are known to work).
* pkg-config (recommended)
-* libFirm-1.20 or later
+* libFirm-1.21 or later
Make sure you have installed libFirm and pkg-config can find the libfirm.pc
files ("pkg-config --modversion libfirm" should work). Use (GNU)-make to build