1##############################################################################
2#
3# --- esd.m4 ---
4#
5# Configure paths for ESD
6# Manish Singh    98-9-30
7# stolen back from Frank Belew
8# stolen from Manish Singh
9# Shamelessly stolen from Owen Taylor
10
11dnl AM_PATH_ESD([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
12dnl Test for ESD, and define ESD_CFLAGS and ESD_LIBS
13dnl
14AC_DEFUN([AM_PATH_ESD],
15[dnl
16dnl Get the cflags and libraries from the esd-config script
17dnl
18AC_ARG_WITH(esd-prefix,[  --with-esd-prefix=PFX   Prefix where ESD is installed (optional)],
19            esd_prefix="$withval", esd_prefix="")
20AC_ARG_WITH(esd-exec-prefix,[  --with-esd-exec-prefix=PFX Exec prefix where ESD is installed (optional)],
21            esd_exec_prefix="$withval", esd_exec_prefix="")
22AC_ARG_ENABLE(esdtest, [  --disable-esdtest       Do not try to compile and run a test ESD program],
23		    , enable_esdtest=yes)
24
25  if test x$esd_exec_prefix != x ; then
26     esd_args="$esd_args --exec-prefix=$esd_exec_prefix"
27     if test x${ESD_CONFIG+set} != xset ; then
28        ESD_CONFIG=$esd_exec_prefix/bin/esd-config
29     fi
30  fi
31  if test x$esd_prefix != x ; then
32     esd_args="$esd_args --prefix=$esd_prefix"
33     if test x${ESD_CONFIG+set} != xset ; then
34        ESD_CONFIG=$esd_prefix/bin/esd-config
35     fi
36  fi
37
38  AC_PATH_PROG(ESD_CONFIG, esd-config, no)
39  min_esd_version=ifelse([$1], ,0.2.7,$1)
40  AC_MSG_CHECKING(for ESD - version >= $min_esd_version)
41  no_esd=""
42  if test "$ESD_CONFIG" = "no" ; then
43    no_esd=yes
44  else
45    ESD_CFLAGS=`$ESD_CONFIG $esdconf_args --cflags`
46    ESD_LIBS=`$ESD_CONFIG $esdconf_args --libs`
47
48    esd_major_version=`$ESD_CONFIG $esd_args --version | \
49           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
50    esd_minor_version=`$ESD_CONFIG $esd_args --version | \
51           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
52    esd_micro_version=`$ESD_CONFIG $esd_config_args --version | \
53           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
54    if test "x$enable_esdtest" = "xyes" ; then
55      ac_save_CFLAGS="$CFLAGS"
56      ac_save_LIBS="$LIBS"
57      CFLAGS="$CFLAGS $ESD_CFLAGS"
58      LIBS="$LIBS $ESD_LIBS"
59dnl
60dnl Now check if the installed ESD is sufficiently new. (Also sanity
61dnl checks the results of esd-config to some extent
62dnl
63      rm -f conf.esdtest
64      AC_TRY_RUN([
65#include <stdio.h>
66#include <stdlib.h>
67#include <string.h>
68#include <esd.h>
69
70char*
71my_strdup (char *str)
72{
73  char *new_str;
74
75  if (str)
76    {
77      new_str = malloc ((strlen (str) + 1) * sizeof(char));
78      strcpy (new_str, str);
79    }
80  else
81    new_str = NULL;
82
83  return new_str;
84}
85
86int main ()
87{
88  int major, minor, micro;
89  char *tmp_version;
90
91  system ("touch conf.esdtest");
92
93  /* HP/UX 9 (%@#!) writes to sscanf strings */
94  tmp_version = my_strdup("$min_esd_version");
95  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
96     printf("%s, bad version string\n", "$min_esd_version");
97     exit(1);
98   }
99
100   if (($esd_major_version > major) ||
101      (($esd_major_version == major) && ($esd_minor_version > minor)) ||
102      (($esd_major_version == major) && ($esd_minor_version == minor) && ($esd_micro_version >= micro)))
103    {
104      return 0;
105    }
106  else
107    {
108      printf("\n*** 'esd-config --version' returned %d.%d.%d, but the minimum version\n", $esd_major_version, $esd_minor_version, $esd_micro_version);
109      printf("*** of ESD required is %d.%d.%d. If esd-config is correct, then it is\n", major, minor, micro);
110      printf("*** best to upgrade to the required version.\n");
111      printf("*** If esd-config was wrong, set the environment variable ESD_CONFIG\n");
112      printf("*** to point to the correct copy of esd-config, and remove the file\n");
113      printf("*** config.cache before re-running configure\n");
114      return 1;
115    }
116}
117
118],, no_esd=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
119       CFLAGS="$ac_save_CFLAGS"
120       LIBS="$ac_save_LIBS"
121     fi
122  fi
123  if test "x$no_esd" = x ; then
124     AC_MSG_RESULT(yes)
125     ifelse([$2], , :, [$2])
126  else
127     AC_MSG_RESULT(no)
128     if test "$ESD_CONFIG" = "no" ; then
129       echo "*** The esd-config script installed by ESD could not be found"
130       echo "*** If ESD was installed in PREFIX, make sure PREFIX/bin is in"
131       echo "*** your path, or set the ESD_CONFIG environment variable to the"
132       echo "*** full path to esd-config."
133     else
134       if test -f conf.esdtest ; then
135        :
136       else
137          echo "*** Could not run ESD test program, checking why..."
138          CFLAGS="$CFLAGS $ESD_CFLAGS"
139          LIBS="$LIBS $ESD_LIBS"
140          AC_TRY_LINK([
141#include <stdio.h>
142#include <esd.h>
143],      [ return 0; ],
144        [ echo "*** The test program compiled, but did not run. This usually means"
145          echo "*** that the run-time linker is not finding ESD or finding the wrong"
146          echo "*** version of ESD. If it is not finding ESD, you'll need to set your"
147          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
148          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
149          echo "*** is required on your system"
150	  echo "***"
151          echo "*** If you have an old version installed, it is best to remove it, although"
152          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
153        [ echo "*** The test program failed to compile or link. See the file config.log for the"
154          echo "*** exact error that occured. This usually means ESD was incorrectly installed"
155          echo "*** or that you have moved ESD since it was installed. In the latter case, you"
156          echo "*** may want to edit the esd-config script: $ESD_CONFIG" ])
157          CFLAGS="$ac_save_CFLAGS"
158          LIBS="$ac_save_LIBS"
159       fi
160     fi
161     ESD_CFLAGS=""
162     ESD_LIBS=""
163     ifelse([$3], , :, [$3])
164  fi
165  AC_SUBST(ESD_CFLAGS)
166  AC_SUBST(ESD_LIBS)
167  rm -f conf.esdtest
168])
169