Bug 19502 - Sparse warning cleanups
[platform/upstream/dbus.git] / acinclude.m4
1
2 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
3 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
4 dnl also defines GSTUFF_PKG_ERRORS on error
5 AC_DEFUN([PKG_CHECK_MODULES], [
6   succeeded=no
7
8   if test -z "$PKG_CONFIG"; then
9     AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
10   fi
11
12   if test "$PKG_CONFIG" = "no" ; then
13      echo "*** The pkg-config script could not be found. Make sure it is"
14      echo "*** in your path, or set the PKG_CONFIG environment variable"
15      echo "*** to the full path to pkg-config."
16      echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
17   else
18      PKG_CONFIG_MIN_VERSION=0.9.0
19      if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
20         AC_MSG_CHECKING(for $2)
21
22         if $PKG_CONFIG --exists "$2" ; then
23             AC_MSG_RESULT(yes)
24             succeeded=yes
25
26             AC_MSG_CHECKING($1_CFLAGS)
27             $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
28             AC_MSG_RESULT($$1_CFLAGS)
29
30             AC_MSG_CHECKING($1_LIBS)
31             $1_LIBS=`$PKG_CONFIG --libs "$2"`
32             AC_MSG_RESULT($$1_LIBS)
33         else
34             $1_CFLAGS=""
35             $1_LIBS=""
36             ## If we have a custom action on failure, don't print errors, but 
37             ## do set a variable so people can do so.
38             $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
39             ifelse([$4], ,echo $$1_PKG_ERRORS,)
40         fi
41
42         AC_SUBST($1_CFLAGS)
43         AC_SUBST($1_LIBS)
44      else
45         echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
46         echo "*** See http://www.freedesktop.org/software/pkgconfig"
47      fi
48   fi
49
50   if test $succeeded = yes; then
51      ifelse([$3], , :, [$3])
52   else
53      ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
54   fi
55 ])
56
57
58
59 dnl a macro to check for ability to create python extensions
60 dnl  AM_CHECK_PYTHON_HEADERS([ACTION-IF-POSSIBLE], [ACTION-IF-NOT-POSSIBLE])
61 dnl function also defines PYTHON_INCLUDES
62 AC_DEFUN([AM_CHECK_PYTHON_HEADERS],
63 [AC_REQUIRE([AM_PATH_PYTHON])
64 AC_MSG_CHECKING(for headers required to compile python extensions)
65 dnl deduce PYTHON_INCLUDES
66 py_prefix=`$PYTHON -c "import sys; print sys.prefix"`
67 py_exec_prefix=`$PYTHON -c "import sys; print sys.exec_prefix"`
68 PYTHON_INCLUDES="-I${py_prefix}/include/python${PYTHON_VERSION}"
69 if test "$py_prefix" != "$py_exec_prefix"; then
70   PYTHON_INCLUDES="$PYTHON_INCLUDES -I${py_exec_prefix}/include/python${PYTHON_VERSION}"
71 fi
72 AC_SUBST(PYTHON_INCLUDES)
73 dnl check if the headers exist:
74 save_CPPFLAGS="$CPPFLAGS"
75 CPPFLAGS="$CPPFLAGS $PYTHON_INCLUDES"
76 AC_TRY_CPP([#include <Python.h>],dnl
77 [AC_MSG_RESULT(found)
78 $1],dnl
79 [AC_MSG_RESULT(not found)
80 $2])
81 CPPFLAGS="$save_CPPFLAGS"
82 ])
83
84
85 dnl as-ac-expand.m4 0.2.0                                   -*- autoconf -*-
86 dnl autostars m4 macro for expanding directories using configure's prefix
87
88 dnl (C) 2003, 2004, 2005 Thomas Vander Stichele <thomas at apestaart dot org>
89
90 dnl Copying and distribution of this file, with or without modification,
91 dnl are permitted in any medium without royalty provided the copyright
92 dnl notice and this notice are preserved.
93
94 dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
95
96 dnl example:
97 dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
98 dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
99
100 AC_DEFUN([AS_AC_EXPAND],
101 [
102   EXP_VAR=[$1]
103   FROM_VAR=[$2]
104
105   dnl first expand prefix and exec_prefix if necessary
106   prefix_save=$prefix
107   exec_prefix_save=$exec_prefix
108
109   dnl if no prefix given, then use /usr/local, the default prefix
110   if test "x$prefix" = "xNONE"; then
111     prefix="$ac_default_prefix"
112   fi
113   dnl if no exec_prefix given, then use prefix
114   if test "x$exec_prefix" = "xNONE"; then
115     exec_prefix=$prefix
116   fi
117
118   full_var="$FROM_VAR"
119   dnl loop until it doesn't change anymore
120   while true; do
121     new_full_var="`eval echo $full_var`"
122     if test "x$new_full_var" = "x$full_var"; then break; fi
123     full_var=$new_full_var
124   done
125
126   dnl clean up
127   full_var=$new_full_var
128   AC_SUBST([$1], "$full_var")
129
130   dnl restore prefix and exec_prefix
131   prefix=$prefix_save
132   exec_prefix=$exec_prefix_save
133 ])