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

AC_PREREQ(2.61)
AC_INIT([multiwatch], [1.0.0], [])
AC_CONFIG_SRCDIR([multiwatch.c])
AC_CONFIG_HEADER([config.h])

AM_INIT_AUTOMAKE([-Wall -Werror foreign])

# Checks for programs.
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_INSTALL

# Checks for libraries.

# glib-2.0
PKG_CHECK_MODULES(GLIB, glib-2.0 >= 2.16.0, [
  AC_DEFINE([HAVE_GLIB_H], [1], [glib.h])
],[AC_MSG_ERROR("glib-2.0 >= 2.16.0 not found")])

# lib ev
AC_CHECK_HEADERS([ev.h], [], [AC_MSG_ERROR("ev.h not found")])
AC_CHECK_LIB([ev], [ev_time], [
  LIBS="-lev ${LIBS}"
  AC_DEFINE([HAVE_LIBEV], [1], [ev_time in -lev])
], [AC_MSG_ERROR("libev not found")])

# Checks for header files.
AC_CHECK_HEADERS([stdlib.h unistd.h], [])

# Checks for typedefs, structures, and compiler characteristics.
AC_TYPE_PID_T

# Checks for library functions.
AC_FUNC_FORK

# check for extra compiler options (warning options)
if test "${GCC}" = "yes"; then
    CFLAGS="${CFLAGS} -Wall -W -Wshadow -pedantic -std=gnu99"
fi

AC_ARG_ENABLE([extra-warnings],
 [AS_HELP_STRING([--enable-extra-warnings],[enable extra warnings (gcc specific)])],
 [case "${enableval}" in
   yes) extrawarnings=true ;;
    no) extrawarnings=false ;;
     *) AC_MSG_ERROR([bad value ${enableval} for --enable-extra-warnings]) ;;
  esac],[extrawarnings=false])

if test x$extrawarnings = xtrue; then
    CFLAGS="${CFLAGS} -g -O2 -g2 -Wall -Wmissing-declarations -Wdeclaration-after-statement -Wcast-align -Wsign-compare -Wnested-externs -Wpointer-arith -Wmissing-prototypes -Wshadow -Wno-pointer-sign -Wformat-security -Wl,--as-needed -Wl,--no-undefined"
fi

AC_CONFIG_FILES([Makefile])
AC_OUTPUT