AC_PREREQ(2.52)

AC_INIT(udev-extras, 0.1, dcbw@redhat.com, udev-extras)
AM_INIT_AUTOMAKE([1.9 subdir-objects tar-ustar])
AM_MAINTAINER_MODE

AC_CONFIG_HEADERS(config.h)

dnl
dnl Require programs
dnl
AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_INSTALL
AC_PROG_LIBTOOL

dnl ensure that when the Automake generated makefile calls aclocal,
dnl it honours the $ACLOCAL_FLAGS environment variable
ACLOCAL_AMFLAGS="\${ACLOCAL_FLAGS}"
if test -n "$ac_macro_dir"; then
    ACLOCAL_AMFLAGS="-I $ac_macro_dir $ACLOCAL_AMFLAGS"
fi
AC_SUBST([ACLOCAL_AMFLAGS])

dnl maintainer mode stuff
if test $USE_MAINTAINER_MODE = yes; then
	DISABLE_DEPRECATED="-DG_DISABLE_DEPRECATED"
else
	DISABLE_DEPRECATED=""
fi
AC_SUBST(DISABLE_DEPRECATED)

dnl
dnl Required headers
dnl
AC_HEADER_STDC
AC_CHECK_HEADERS(fcntl.h paths.h sys/ioctl.h sys/time.h syslog.h unistd.h)

dnl
dnl Checks for typedefs, structures, and compiler characteristics.
dnl
AC_TYPE_MODE_T
AC_TYPE_PID_T
AC_HEADER_TIME

dnl
dnl Checks for library functions.
dnl
AC_PROG_GCC_TRADITIONAL
AC_FUNC_MEMCMP
AC_CHECK_FUNCS(select socket uname)

dnl
dnl Make sha1.c happy on big endian systems
dnl
AC_C_BIGENDIAN

PKG_CHECK_MODULES(GLIB, glib-2 >= 2.12)
AC_SUBST(GLIB_CFLAGS)
AC_SUBST(GLIB_LIBS)

AC_ARG_ENABLE(more-warnings,
AS_HELP_STRING([--enable-more-warnings], [Maximum compiler warnings]), set_more_warnings="$enableval",set_more_warnings=yes)
AC_MSG_CHECKING(for more warnings, including -Werror)
if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
	AC_MSG_RESULT(yes)
	CFLAGS="-Wall -Werror -std=gnu89 $CFLAGS"

	for option in -Wshadow -Wmissing-declarations -Wmissing-prototypes \
		      -Wdeclaration-after-statement -Wstrict-prototypes \
		      -Wfloat-equal -Wno-unused-parameter -Wno-sign-compare \
		      -fno-strict-aliasing; do
		SAVE_CFLAGS="$CFLAGS"
		CFLAGS="$CFLAGS $option"
		AC_MSG_CHECKING([whether gcc understands $option])
		AC_TRY_COMPILE([], [],
			has_option=yes,
			has_option=no,)
		if test $has_option = no; then
			CFLAGS="$SAVE_CFLAGS"
		fi
		AC_MSG_RESULT($has_option)
		unset has_option
		unset SAVE_CFLAGS
	done
	unset option
else
	AC_MSG_RESULT(no)
fi

AC_CONFIG_FILES([
Makefile
probe-modem/Makefile
])
AC_OUTPUT