## To compile asn1c compiler itself A 64-bit build system is strongly recommended for asn1c operation. A working C99 compiler is required to compile asn1c itself, such as gcc-4.x or clang-3.4. The asn1c compiler produces C90-compatible code, which is also upward compatible with C++. ### Packages This notation specifies a minimum required package version (-ver) or an exact version (=ver). For example, bison=2.x requires the 2.x branch of bison, not 3.x. * automake-1.15 * libtool * bison=2.x * flex ## To compile asn1c-generated code C: As a minimum, a compiler supporting the C90. Pretty much any modern C compiler will do, but gcc or clang is recommended. Note that MSVC++ is not a C compiler. C++: A C++11 compliant compiler is recommended.