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

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Revision 1.1 - (hide annotations)
Mon Oct 21 18:46:25 2002 UTC (19 years, 1 month 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 nmav 1.1 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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