Automake includes some support for Objective C.
Any package including Objective C code must define the output variable
OBJC in configure.ac; the simplest way to do this is to use
AC_PROG_OBJC macro (see Particular
Program Checks in The Autoconf Manual).
A few additional variables are defined when an Objective C source file is seen:
The name of the Objective C compiler.
Any flags to pass to the Objective C compiler.
The maintainer’s variant of
The command used to actually compile an Objective C source file. The file name is appended to form the complete command line.
The command used to actually link an Objective C program.