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# Configure paths for the CLN library
# Richard Kreckel 12/4/2000
# borrowed from Christian Bauer
# stolen from Sam Lantinga
# stolen from Manish Singh
# stolen back from Frank Belew
# stolen from Manish Singh
# Shamelessly stolen from Owen Taylor
dnl AC_PATH_CLN([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for installed CLN library, and define CLN_CPPFLAGS and CLN_LIBS
dnl
AC_DEFUN([AC_PATH_CLN],
[dnl
dnl Get the cppflags and libraries from the cln-config script
dnl
AC_ARG_WITH(cln-prefix,[ --with-cln-prefix=PFX Prefix where CLN is installed (optional)],
cln_config_prefix="$withval", cln_config_prefix="")
AC_ARG_WITH(cln-exec-prefix,[ --with-cln-exec-prefix=PFX Exec prefix where CLN is installed (optional)],
cln_config_exec_prefix="$withval", cln_config_exec_prefix="")
AC_ARG_ENABLE(clntest, [ --disable-clntest Do not try to compile and run a test CLN program],
, enable_clntest=yes)
if test x$cln_config_exec_prefix != x ; then
cln_config_args="$cln_config_args --exec-prefix=$cln_config_exec_prefix"
if test x${CLN_CONFIG+set} != xset ; then
CLN_CONFIG=$cln_config_exec_prefix/bin/cln-config
fi
fi
if test x$cln_config_prefix != x ; then
cln_config_args="$cln_config_args --prefix=$cln_config_prefix"
if test x${CLN_CONFIG+set} != xset ; then
CLN_CONFIG=$cln_config_prefix/bin/cln-config
fi
fi
AC_PATH_PROG(CLN_CONFIG, cln-config, no)
cln_min_version=ifelse([$1], ,1.1.0,$1)
AC_MSG_CHECKING(for CLN - version >= $cln_min_version)
if test "$CLN_CONFIG" = "no" ; then
AC_MSG_RESULT(no)
echo "*** The cln-config script installed by CLN could not be found"
echo "*** If CLN was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the CLN_CONFIG environment variable to the"
echo "*** full path to cln-config."
ifelse([$3], , :, [$3])
else
dnl Parse required version and the result of cln-config.
cln_min_major_version=`echo $cln_min_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
cln_min_minor_version=`echo $cln_min_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
cln_min_micro_version=`echo $cln_min_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
CLN_CPPFLAGS=`$CLN_CONFIG $cln_config_args --cppflags`
CLN_LIBS=`$CLN_CONFIG $cln_config_args --libs`
cln_config_version=`$CLN_CONFIG $cln_config_args --version`
cln_config_major_version=`echo $cln_config_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
cln_config_minor_version=`echo $cln_config_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
cln_config_micro_version=`echo $cln_config_version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
dnl Check if the installed CLN is sufficiently new according to cln-config.
if test \( $cln_config_major_version -lt $cln_min_major_version \) -o \
\( $cln_config_major_version -eq $cln_min_major_version -a $cln_config_minor_version -lt $cln_min_minor_version \) -o \
\( $cln_config_major_version -eq $cln_min_major_version -a $cln_config_minor_version -eq $cln_min_minor_version -a $cln_config_micro_version -lt $cln_min_micro_version \); then
echo -e "\n*** 'cln-config --version' returned $cln_config_major_version.$cln_config_minor_version.$cln_config_micro_version, but the minimum version"
echo "*** of CLN required is $cln_min_major_version.$cln_min_minor_version.$cln_min_micro_version. If cln-config is correct, then it is"
echo "*** best to upgrade to the required version."
echo "*** If cln-config was wrong, set the environment variable CLN_CONFIG"
echo "*** to point to the correct copy of cln-config, and remove the file"
echo "*** config.cache before re-running configure."
ifelse([$3], , :, [$3])
else
dnl The versions match so far. Now do a sanity check: Does the result of cln-config
dnl match the version of the headers and the version built into the library, too?
no_cln=""
if test "x$enable_clntest" = "xyes" ; then
ac_save_CPPFLAGS="$CPPFLAGS"
ac_save_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $CLN_CPPFLAGS"
LIBS="$LIBS $CLN_LIBS"
rm -f conf.clntest
AC_TRY_RUN([
#include <stdio.h>
#include <string.h>
#include <cln/version.h>
/* we do not #include <stdlib.h> because autoconf in C++ mode inserts a
prototype for exit() that conflicts with the one in stdlib.h */
extern "C" int system(const char *);
int main(void)
{
int major, minor, micro;
char *tmp_version;
system("touch conf.clntest");
if ((CL_VERSION_MAJOR != $cln_config_major_version) ||
(CL_VERSION_MINOR != $cln_config_minor_version) ||
(CL_VERSION_PATCHLEVEL != $cln_config_micro_version)) {
printf("\n*** 'cln-config --version' returned %d.%d.%d, but the header file I found\n", $cln_config_major_version, $cln_config_minor_version, $cln_config_micro_version);
printf("*** corresponds to %d.%d.%d. This mismatch suggests your installation of CLN\n", CL_VERSION_MAJOR, CL_VERSION_MINOR, CL_VERSION_PATCHLEVEL);
printf("*** is corrupted or you have specified some wrong -I compiler flags.\n");
printf("*** Please inquire and consider reinstalling CLN.\n");
return 1;
}
if ((cln::version_major != $cln_config_major_version) ||
(cln::version_minor != $cln_config_minor_version) ||
(cln::version_patchlevel != $cln_config_micro_version)) {
printf("\n*** 'cln-config --version' returned %d.%d.%d, but the library I found\n", $cln_config_major_version, $cln_config_minor_version, $cln_config_micro_version);
printf("*** corresponds to %d.%d.%d. This mismatch suggests your installation of CLN\n", cln::version_major, cln::version_minor, cln::version_patchlevel);
printf("*** is corrupted or you have specified some wrong -L compiler flags.\n");
printf("*** Please inquire and consider reinstalling CLN.\n");
return 1;
}
return 0;
}
],, no_cln=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CPPFLAGS="$ac_save_CPPFLAGS"
LIBS="$ac_save_LIBS"
fi
if test "x$no_cln" = x ; then
AC_MSG_RESULT([yes, $cln_config_version])
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test ! -f conf.clntest ; then
echo "*** Could not run CLN test program, checking why..."
CPPFLAGS="$CFLAGS $CLN_CPPFLAGS"
LIBS="$LIBS $CLN_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <cln/version.h>
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding CLN or finding the wrong"
echo "*** version of CLN. If it is not finding CLN, 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 "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means CLN was incorrectly installed"
echo "*** or that you have moved CLN since it was installed. In the latter case, you"
echo "*** may want to edit the cln-config script: $CLN_CONFIG." ])
CPPFLAGS="$ac_save_CPPFLAGS"
LIBS="$ac_save_LIBS"
fi
CLN_CPPFLAGS=""
CLN_LIBS=""
ifelse([$3], , :, [$3])
fi
fi
fi
AC_SUBST(CLN_CPPFLAGS)
AC_SUBST(CLN_LIBS)
rm -f conf.clntest
])