dnl Process this file with autoconf to produce a configure script.
  AC_INIT(test_unit.cpp)
  
  dnl Checks for programs.
  AC_PROG_CXX
  dnl AC_PROG_INSTALL
  AC_PROG_MAKE_SET
  
  dnl Checks for libraries.
  dnl Replace `main' with a function in -lm:
  AC_CHECK_LIB(m, main)
  
  dnl Checks for header files.
  AC_HEADER_STDC
  AC_CHECK_HEADERS(unistd.h)
  
  dnl Checks for typedefs, structures, and compiler characteristics.
  AC_C_CONST
  AC_TYPE_SIZE_T
  
  dnl Checks for library functions.
  dnl AC_FUNC_VPRINTF
  
  AC_PATH_PROGS(INSTALL, install cp copy)
  
  AC_OUTPUT(Makefile)