/[hydra]/hydra/extra_macros.m4
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Contents of /hydra/extra_macros.m4

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Revision 1.1 - (show annotations)
Mon Oct 21 18:46:25 2002 UTC (17 years, 11 months ago) by nmav
Branch: MAIN
CVS Tags: hydra_0_1_6_without_hic, hydra_0_0_8, hydra_0_0_9, hydra_0_1_3, hydra_0_1_2, hydra_0_1_1, hydra_0_1_0, hydra_0_1_7, hydra_0_1_6, hydra_0_1_4, hydra_0_1_8, hydra_0_0_10, HEAD
Branch point for: hydra_0_1_0_patches
Added several stuff from Boa 0.94.14rc1

1 dnl The following macros courtesy of:
2 dnl http://www.gnu.org/software/ac-archive/Installed_Packages/check_gnu_make.html
3 dnl
4 dnl Copyrights are by the individual authors, as listed.
5 dnl License: GPL
6 dnl
7
8
9 dnl CHECK_GNU_MAKE()
10 dnl
11 dnl This macro searches for a GNU version of make. If a match is found, the
12 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
13 dnl set to "#". This is useful for including a special features in a Makefile,
14 dnl which cannot be handled by other versions of make. The variable
15 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
16 dnl the empty string otherwise.
17 dnl
18 dnl Here is an example of its use:
19 dnl
20 dnl Makefile.in might contain:
21 dnl
22 dnl # A failsafe way of putting a dependency rule into a makefile
23 dnl $(DEPEND):
24 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
25 dnl
26 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
27 dnl @ifGNUmake@ include $(DEPEND)
28 dnl @ifGNUmake@ endif
29 dnl
30 dnl Then configure.in would normally contain:
31 dnl
32 dnl CHECK_GNU_MAKE()
33 dnl AC_OUTPUT(Makefile)
34 dnl
35 dnl Then perhaps to cause gnu make to override any other make, we could do
36 dnl something like this (note that GNU make always looks for GNUmakefile first):
37 dnl
38 dnl if ! test x$_cv_gnu_make_command = x ; then
39 dnl mv Makefile GNUmakefile
40 dnl echo .DEFAULT: > Makefile ;
41 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
42 dnl fi
43 dnl
44 dnl Then, if any (well almost any) other make is called, and GNU make also exists,
45 dnl then the other make wraps the GNU make.
46 dnl
47 dnl John Darrington <j.darrington@elvis.murdoch.edu.au>
48 dnl 1.3 (2002/01/04)
49 dnl
50 dnl Modified 18 Sep 2002 by Jon Nelson <jnelson@boa.org>
51
52 AC_DEFUN([CHECK_GNU_MAKE],
53 [ AC_CACHE_CHECK( for GNU make, _cv_gnu_make_command,
54 [_cv_gnu_make_command=''
55 dnl Search all the common names for GNU make
56 for a in "$MAKE" make gmake gnumake ; do
57 if test -z "$a" ; then continue ; fi
58 if ( sh -c "$a --version" 2> /dev/null | grep GNU 2>&1 > /dev/null ); then
59 _cv_gnu_make_command=$a
60 break;
61 fi
62 done
63 if test "x$_cv_gnu_make_command" = "x"; then
64 _cv_gnu_make_command="Not found"
65 fi
66 ])
67 dnl If there was a GNU version, then set @ifGNUmake@ to the empty string, '#' otherwise
68 if test "$_cv_gnu_make_command" != "Not found"; then
69 ifGNUmake='';
70 else
71 ifGNUmake='#';
72 _cv_gnu_make_command='';
73 fi
74 AC_SUBST(ifGNUmake)
75 ])
76
77 dnl AC_CHECK_STRUCT_FOR(INCLUDES,STRUCT,MEMBER,DEFINE,[no])
78 dnl 1.1 (2000/09/19)
79 dnl Wes Hardaker <wjhardaker@ucdavis.edu>
80
81 dnl ----------------------------------------------------------
82
83 AC_DEFUN([AC_CHECK_STRUCT_FOR],[
84 ac_safe_struct=`echo "$2" | sed 'y%./+-%__p_%'`
85 ac_safe_member=`echo "$3" | sed 'y%./+-%__p_%'`
86 ac_safe_all="ac_cv_struct_${ac_safe_struct}_has_${ac_safe_member}"
87 changequote(, )dnl
88 ac_uc_define=STRUCT_`echo "${ac_safe_struct}_HAS_${ac_safe_member}" | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
89 changequote([, ])dnl
90
91 AC_MSG_CHECKING([for $2.$3])
92 AC_CACHE_VAL($ac_safe_all,
93 [
94 if test "x$4" = "x"; then
95 defineit="= 0"
96 elif test "x$4" = "xno"; then
97 defineit=""
98 else
99 defineit="$4"
100 fi
101 AC_TRY_COMPILE([
102 $1
103 ],[
104 struct $2 testit;
105 testit.$3 $defineit;
106 ], eval "${ac_safe_all}=yes", eval "${ac_safe_all}=no" )
107 ])
108
109 if eval "test \"x$`echo ${ac_safe_all}`\" = \"xyes\""; then
110 AC_MSG_RESULT(yes)
111 AC_DEFINE_UNQUOTED($ac_uc_define)
112 else
113 AC_MSG_RESULT(no)
114 fi
115 ])
116

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