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

AC_PREREQ([2.68])
AC_INIT([powertop], [2.2], [powertop@lists.01.org])
AM_INIT_AUTOMAKE([-Wall foreign ])
AC_LANG([C++])
AC_CONFIG_FILES([Makefile src/Makefile traceevent/Makefile po/Makefile.in doc/Makefile])
AC_CONFIG_SRCDIR([src/main.cpp])
AC_CONFIG_MACRO_DIR([m4])
AC_CONFIG_HEADERS([config.h])
GETTEXT_PACKAGE=powertop
AC_SUBST(GETTEXT_PACKAGE)
AM_SILENT_RULES([yes])
AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.18])

m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
# Checks for programs.
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_LIBTOOL
AC_PROG_CC
AC_PROG_INSTALL
AM_PROG_CC_C_O

# Checks for libraries.
# Checks for header files.
AC_CHECK_HEADERS([fcntl.h libintl.h limits.h locale.h malloc.h stdint.h stdlib.h string.h sys/ioctl.h sys/socket.h sys/statfs.h sys/time.h termios.h unistd.h ncurses.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_INLINE
AC_TYPE_INT64_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T

# Checks for library functions.
AC_FUNC_MALLOC
AC_FUNC_MMAP
AC_FUNC_REALLOC
AC_FUNC_STRTOD
AC_CHECK_FUNCS([fdatasync getpagesize gettimeofday memmove memset mkdir munmap pow realpath regcomp select setlocale socket sqrt strcasecmp strchr strdup strerror strncasecmp strstr strtoul strtoull])

AC_SEARCH_LIBS([delwin], [ncursesw ncurses], [], AC_MSG_ERROR([ncurses is required but was not found]), [])

has_libpci=0
PKG_CHECK_MODULES([PCIUTILS], [libpci],[has_libpci=1],[
	AC_SEARCH_LIBS([pci_get_dev], [pci],[has_libpci=1], [has_libpci=0] )])
 

has_libnl_ver=0
# libnl-2 provides only libnl-2.0.pc file, so we check for separate libnl-genl-3.0.pc
# pkg-config file just for libnl-3.0 case.
#
PKG_CHECK_MODULES([LIBNL], [libnl-3.0 >= 3.0 libnl-genl-3.0 >= 3.0], [has_libnl_ver=3], [
	PKG_CHECK_MODULES([LIBNL], [libnl-2.0 >= 2.0], [has_libnl_ver=2], [
		PKG_CHECK_MODULES([LIBNL], [libnl-1], [has_libnl_ver=1], [has_libnl_ver=0])])])
if (test "$has_libnl_ver" -eq 0); then
	AC_MSG_ERROR(libnl and libnl-genl are required but were not found)
fi
if (test "$has_libnl_ver" -gt 1); then
	AC_DEFINE([HAVE_LIBNL20], [1], [Define if you have libnl-2.0 or higher])
fi

if (test "$has_libpci" -eq 0); then 
	AC_DEFINE([HAVE_NO_PCI],[1],[Define if pci is not supported])
        AC_MSG_WARN([
			************* LIBPCI SUPPORT NOT CONFIGURED**************
			If you need or want pci support, please install libpci 
			and re-configure PowerTOP. 
			*********************************************************
	])
fi

AC_SEARCH_LIBS([pthread_create], [pthread], [], AC_MSG_ERROR([libpthread is required but was not found]), [])
AC_SEARCH_LIBS([inet_aton], [resolv], [], AC_MSG_ERROR([libresolv is required but was not found]), [])

AC_OUTPUT