/usr/share/aclocal/log4c.m4 is in liblog4c-dev 1.2.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 | # Configure paths for LOG4C
# Owen Taylor 97-11-3
dnl AM_PATH_LOG4C([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for LOG4C, and define LOG4C_CFLAGS and LOG4C_LIBS
dnl
AC_DEFUN(AM_PATH_LOG4C,
[dnl
dnl Get the cflags and libraries from the log4c-config script
dnl
AC_ARG_WITH(log4c-prefix,[ --with-log4c-prefix=PFX Prefix where LOG4C is installed (optional)],
log4c_config_prefix="$withval", log4c_config_prefix="")
AC_ARG_WITH(log4c-exec-prefix,[ --with-log4c-exec-prefix=PFX Exec prefix where LOG4C is installed (optional)],
log4c_config_exec_prefix="$withval", log4c_config_exec_prefix="")
AC_ARG_ENABLE(log4ctest, [ --disable-log4ctest Do not try to compile and run a test LOG4C program],
, enable_log4ctest=yes)
if test x$log4c_config_exec_prefix != x ; then
log4c_config_args="$log4c_config_args --exec-prefix=$log4c_config_exec_prefix"
if test x${LOG4C_CONFIG+set} != xset ; then
LOG4C_CONFIG=$log4c_config_exec_prefix/bin/log4c-config
fi
fi
if test x$log4c_config_prefix != x ; then
log4c_config_args="$log4c_config_args --prefix=$log4c_config_prefix"
if test x${LOG4C_CONFIG+set} != xset ; then
LOG4C_CONFIG=$log4c_config_prefix/bin/log4c-config
fi
fi
AC_PATH_PROG(LOG4C_CONFIG, log4c-config, no)
min_log4c_version=ifelse([$1], ,0.99.7,$1)
AC_MSG_CHECKING(for LOG4C - version >= $min_log4c_version)
no_log4c=""
if test "$LOG4C_CONFIG" = "no" ; then
no_log4c=yes
else
LOG4C_CFLAGS=`$LOG4C_CONFIG $log4c_config_args --cflags`
LOG4C_LIBS=`$LOG4C_CONFIG $log4c_config_args --libs`
log4c_config_major_version=`$LOG4C_CONFIG $log4c_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
log4c_config_minor_version=`$LOG4C_CONFIG $log4c_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
log4c_config_micro_version=`$LOG4C_CONFIG $log4c_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_log4ctest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $LOG4C_CFLAGS"
LIBS="$LOG4C_LIBS $LIBS"
dnl
dnl Now check if the installed LOG4C is sufficiently new. (Also sanity
dnl checks the results of log4c-config to some extent
dnl
rm -f conf.log4ctest
AC_TRY_RUN([
#include <log4c.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int
main ()
{
int major, minor, micro;
char *tmp_version;
system ("touch conf.log4ctest");
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = strdup("$min_log4c_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
printf("%s, bad version string\n", "$min_log4c_version");
exit(1);
}
if ((log4c_major_version != $log4c_config_major_version) ||
(log4c_minor_version != $log4c_config_minor_version) ||
(log4c_micro_version != $log4c_config_micro_version))
{
printf("\n*** 'log4c-config --version' returned %d.%d.%d, but LOG4C (%d.%d.%d)\n",
$log4c_config_major_version, $log4c_config_minor_version, $log4c_config_micro_version,
log4c_major_version, log4c_minor_version, log4c_micro_version);
printf ("*** was found! If log4c-config was correct, then it is best\n");
printf ("*** to remove the old version of LOG4C. You may also be able to fix the error\n");
printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
printf("*** required on your system.\n");
printf("*** If log4c-config was wrong, set the environment variable LOG4C_CONFIG\n");
printf("*** to point to the correct copy of log4c-config, and remove the file config.cache\n");
printf("*** before re-running configure\n");
}
else if ((log4c_major_version != LOG4C_MAJOR_VERSION) ||
(log4c_minor_version != LOG4C_MINOR_VERSION) ||
(log4c_micro_version != LOG4C_MICRO_VERSION))
{
printf("*** LOG4C header files (version %d.%d.%d) do not match\n",
LOG4C_MAJOR_VERSION, LOG4C_MINOR_VERSION, LOG4C_MICRO_VERSION);
printf("*** library (version %d.%d.%d)\n",
log4c_major_version, log4c_minor_version, log4c_micro_version);
}
else
{
if ((log4c_major_version > major) ||
((log4c_major_version == major) && (log4c_minor_version > minor)) ||
((log4c_major_version == major) && (log4c_minor_version == minor) && (log4c_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** An old version of LOG4C (%d.%d.%d) was found.\n",
log4c_major_version, log4c_minor_version, log4c_micro_version);
printf("*** You need a version of LOG4C newer than %d.%d.%d. The latest version of\n",
major, minor, micro);
printf("***\n");
printf("*** If you have already installed a sufficiently new version, this error\n");
printf("*** probably means that the wrong copy of the log4c-config shell script is\n");
printf("*** being found. The easiest way to fix this is to remove the old version\n");
printf("*** of LOG4C, but you can also set the LOG4C_CONFIG environment to point to the\n");
printf("*** correct copy of log4c-config. (In this case, you will have to\n");
printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
printf("*** so that the correct libraries are found at run-time))\n");
}
}
return 1;
}
],, no_log4c=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_log4c" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$LOG4C_CONFIG" = "no" ; then
echo "*** The log4c-config script installed by LOG4C could not be found"
echo "*** If LOG4C was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the LOG4C_CONFIG environment variable to the"
echo "*** full path to log4c-config."
else
if test -f conf.log4ctest ; then
:
else
echo "*** Could not run LOG4C test program, checking why..."
CFLAGS="$CFLAGS $LOG4C_CFLAGS"
LIBS="$LIBS $LOG4C_LIBS"
AC_TRY_LINK([
#include <log4c.h>
#include <stdio.h>
], [ return ((log4c_major_version) || (log4c_minor_version) || (log4c_micro_version)); ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding LOG4C or finding the wrong"
echo "*** version of LOG4C. If it is not finding LOG4C, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
echo "***" ],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means LOG4C was incorrectly installed"
echo "*** or that you have moved LOG4C since it was installed. In the latter case, you"
echo "*** may want to edit the log4c-config script: $LOG4C_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
LOG4C_CFLAGS=""
LOG4C_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(LOG4C_CFLAGS)
AC_SUBST(LOG4C_LIBS)
rm -f conf.log4ctest
])
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