1dnl SMB Build Environment make Checks
2dnl -------------------------------------------------------
3dnl  Copyright (C) Stefan (metze) Metzmacher 2004
4dnl  Copyright (C) Jelmer Vernooij 2005
5dnl  Released under the GNU GPL
6dnl -------------------------------------------------------
7dnl
8
9AC_PATH_PROG(MAKE,make)
10
11AC_CACHE_CHECK([whether we have GNU make], samba_cv_gnu_make, [
12if $ac_cv_path_MAKE --version | head -1 | grep GNU 2>/dev/null >/dev/null
13then
14	samba_cv_gnu_make=yes
15else
16	samba_cv_gnu_make=no
17fi
18])
19
20GNU_MAKE=$samba_cv_gnu_make
21AC_SUBST(GNU_MAKE)
22
23if test "x$GNU_MAKE" = x"yes"; then
24	AC_CACHE_CHECK([GNU make version], samba_cv_gnu_make_version,[
25		samba_cv_gnu_make_version=`$ac_cv_path_MAKE --version | head -1 | cut -d " " -f 3 2>/dev/null`
26	])
27	GNU_MAKE_VERSION=$samba_cv_gnu_make_version
28	AC_SUBST(GNU_MAKE_VERSION)
29fi
30
31
32new_make=no
33AC_MSG_CHECKING([for GNU make >= 3.81])
34if test x$GNU_MAKE = x"yes"; then
35	if $PERL -e " \$_ = '$GNU_MAKE_VERSION'; s/@<:@^\d\.@:>@.*//g; exit (\$_ < 3.81);"; then
36		new_make=yes
37	fi
38fi
39AC_MSG_RESULT($new_make)
40automatic_dependencies=no
41AX_CFLAGS_GCC_OPTION([-M -MT conftest.d -MF conftest.o], [], [ automatic_dependencies=$new_make ], [])
42AC_MSG_CHECKING([Whether to use automatic dependencies])
43AC_ARG_ENABLE(automatic-dependencies,
44[ --enable-automatic-dependencies 			Enable automatic dependencies],
45[ automatic_dependencies=$enableval ],
46[ automatic_dependencies=no ])
47AC_MSG_RESULT($automatic_dependencies)
48AC_SUBST(automatic_dependencies)
49