configure.ac

# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.69])
AC_INIT([USTB-CLOCK], [v0.9], [https://github.com/jason23347/ustb-clock])
AC_CONFIG_SRCDIR([src/main.c])
AC_CONFIG_HEADERS([config.h])

AM_INIT_AUTOMAKE([subdir-objects])

# debug mode
AC_ARG_ENABLE(debug,
    AS_HELP_STRING([--enable-debug], [enable debugging, default: no]))
AS_IF([! test "x$enable_debug" = xyes ], [
    AC_DEFINE([NDEBUG], [1], [disable debugging code])
])

# detect window size
AC_ARG_ENABLE(detect_winsize,
    AS_HELP_STRING([--enable-winsize-detection],
    [detect winsize, default: no]))
AS_IF([ test "x$enable_detect_winsize" = xyes ], [
    AC_DEFINE([ALWAYS_DETECT_WINSIZE], [1], [always detect winsize and redraw])
])

# colorfulization
AC_ARG_ENABLE(colorful_output,
    AS_HELP_STRING([--enable-colorful-output],
    [print info colorfully, default: yes]))
AS_IF([ test "x$enable_colorful_output" != xno ], [
    AC_DEFINE([COLORFUL_OUTPUT], [1], [print info colorfully])
])

# Clock type: "digits" or "randmap"
AC_ARG_ENABLE(clock_type,
    AS_HELP_STRING([--enable-clock-type],
    [specify clock type, default: digits]))
AS_CASE(["$enable_clock_type"],
  [randmap], [
    AC_DEFINE([CLOCK_TYPE], [CLOCK_TYPE_RANDMAP], [clock type])
  ]
  [*], [
    AC_DEFINE([CLOCK_TYPE], [CLOCK_TYPE_DIGITS], [clock type])
  ]
)

# Checks for programs.
AC_PROG_CC
AC_PROG_CC_C99

# Checks for libraries.

# Checks for header files.
AC_CHECK_HEADERS([ \
    arpa/inet.h \
    netinet/in.h \
    stddef.h \
    stdlib.h \
    string.h \
    sys/socket.h \
    sys/time.h \
    unistd.h \
])

# Checks for typedefs, structures, and compiler characteristics.
AC_C_INLINE
AC_TYPE_SIZE_T

# POSIX types
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T

# Checks for library functions.
AX_PTHREAD()
AC_CHECK_FUNCS([ \
    clock_gettime \
    gettimeofday \
    memset \
    socket \
    strchr \
    strerror \
    strstr \
])

LIBS="$LIBS -lpthread"

AC_CONFIG_FILES([Makefile])
AC_OUTPUT