ossp-pkg/l2/l2.m4
dnl ##
dnl ## OSSP l2 - Flexible Logging
dnl ## Copyright (c) 2001-2005 Cable & Wireless <http://www.cw.com/>
dnl ## Copyright (c) 2001-2005 The OSSP Project <http://www.ossp.org/>
dnl ## Copyright (c) 2001-2005 Ralf S. Engelschall <rse@engelschall.com>
dnl ##
dnl ## This file is part of OSSP l2, a flexible logging library which
dnl ## can be found at http://www.ossp.org/pkg/lib/l2/.
dnl ##
dnl ## Permission to use, copy, modify, and distribute this software for
dnl ## any purpose with or without fee is hereby granted, provided that
dnl ## the above copyright notice and this permission notice appear in all
dnl ## copies.
dnl ##
dnl ## THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
dnl ## WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
dnl ## MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
dnl ## IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
dnl ## CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
dnl ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
dnl ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
dnl ## USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
dnl ## ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
dnl ## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
dnl ## OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
dnl ## SUCH DAMAGE.
dnl ##
dnl ## l2.m4: Autoconf macro for locating OSSP l2 from within
dnl ## configure.in of third-party software packages
dnl ##
dnl ##
dnl ## Synopsis:
dnl ## AC_CHECK_L2([MIN-VERSION [, # minimum OSSP l2 version, e.g. 1.2.0
dnl ## DEFAULT-WITH-L2 [, # default value for --with-l2 option
dnl ## DEFAULT-WITH-L2-TEST [, # default value for --with-l2-test option
dnl ## EXTEND-VARS [, # whether CFLAGS/LDFLAGS/etc are extended
dnl ## ACTION-IF-FOUND [, # action to perform if OSSP l2 was found
dnl ## ACTION-IF-NOT-FOUND # action to perform if OSSP l2 was not found
dnl ## ]]]]]])
dnl ## Examples:
dnl ## AC_CHECK_L2(1.2.0)
dnl ## AC_CHECK_L2(1.2.0,,,no,CFLAGS="$CFLAGS -DHAVE_L2 $L2_CFLAGS")
dnl ## AC_CHECK_L2(1.2.0,yes,yes,yes,CFLAGS="$CFLAGS -DHAVE_L2")
dnl ##
dnl
dnl # auxilliary macros
AC_DEFUN(_AC_L2_ERROR, [dnl
AC_MSG_RESULT([*FAILED*])
define(_ac_l2_line,dnl
"+------------------------------------------------------------------------+")
echo " _ac_l2_line" 1>&2
cat <<EOT | sed -e 's/^[[ ]]*/ | /' -e 's/>>/ /' 1>&2
$1
EOT
echo " _ac_l2_line" 1>&2
undefine(_ac_l2_line)
exit 1
])
AC_DEFUN(_AC_L2_VERBOSE, [dnl
if test ".$verbose" = .yes; then
AC_MSG_RESULT([ $1])
fi
])
dnl # the user macro
AC_DEFUN(AC_CHECK_L2, [dnl
dnl
dnl # prerequisites
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
dnl
L2_CPPFLAGS=''
L2_CFLAGS=''
L2_LDFLAGS=''
L2_LIBS=''
AC_SUBST(L2_CPPFLAGS)
AC_SUBST(L2_CFLAGS)
AC_SUBST(L2_LDFLAGS)
AC_SUBST(L2_LIBS)
dnl # command line options
AC_MSG_CHECKING(for OSSP l2)
_AC_L2_VERBOSE([])
AC_ARG_WITH(l2,dnl
[ --with-l2[=ARG] Build with OSSP l2 Library (default=]ifelse([$2],,yes,$2)[)],dnl
,dnl
with_l2="ifelse([$2],,yes,$2)"
)dnl
AC_ARG_WITH(l2-test,dnl
[ --with-l2-test Perform OSSP l2 Sanity Test (default=]ifelse([$3],,yes,$3)[)],dnl
,dnl
with_l2_test="ifelse([$3],,yes,$3)"
)dnl
_AC_L2_VERBOSE([+ Command Line Options:])
_AC_L2_VERBOSE([ o --with-l2=$with_l2])
_AC_L2_VERBOSE([ o --with-l2-test=$with_l2_test])
dnl
dnl # configuration
if test ".$with_l2" != .no; then
_l2_subdir=no
_l2_subdir_opts=''
case "$with_l2" in
subdir:* )
_l2_subdir=yes
changequote(, )dnl
_l2_subdir_opts=`echo $with_l2 | sed -e 's/^subdir:[^ ]*[ ]*//'`
with_l2=`echo $with_l2 | sed -e 's/^subdir:\([^ ]*\).*$/\1/'`
changequote([, ])dnl
;;
esac
_l2_version=""
_l2_location=""
_l2_type=""
_l2_cppflags=""
_l2_cflags=""
_l2_ldflags=""
_l2_libs=""
if test ".$with_l2" = .yes; then
# via config script in $PATH
changequote(, )dnl
_l2_version=`(l2-config --version) 2>/dev/null |\
sed -e 's/^.*\([0-9]\.[0-9]*[ab.][0-9]*\).*$/\1/'`
changequote([, ])dnl
if test ".$_l2_version" != .; then
_l2_location=`l2-config --prefix`
_l2_type='installed'
_l2_cppflags=`l2-config --cflags`
_l2_cflags=`l2-config --cflags`
_l2_ldflags=`l2-config --ldflags`
_l2_libs=`l2-config --libs`
fi
elif test -d "$with_l2"; then
with_l2=`echo $with_l2 | sed -e 's;/*$;;'`
_l2_found=no
# via locally included source tree
if test ".$_l2_subdir" = .yes; then
_l2_location="$with_l2"
_l2_type='local'
_l2_cppflags="-I$with_l2"
_l2_cflags="-I$with_l2"
if test -f "$with_l2/ltconfig"; then
_l2_ldflags="-L$with_l2/.libs"
else
_l2_ldflags="-L$with_l2"
fi
_l2_libs="-ll2"
changequote(, )dnl
_l2_version=`grep '^const char L2_Hello' $with_l2/l2_vers.c |\
sed -e 's;^.*Version[ ]*\([0-9]*\.[0-9]*[.ab][0-9]*\)[ ].*$;\1;'`
changequote([, ])dnl
_l2_found=yes
ac_configure_args="$ac_configure_args --enable-subdir $_l2_subdir_opts"
with_l2_test=no
fi
# via config script under a specified directory
# (a standard installation, but not a source tree)
if test ".$_l2_found" = .no; then
for _dir in $with_l2/bin $with_l2; do
if test -f "$_dir/l2-config"; then
test -f "$_dir/l2-config.in" && continue # l2-config in source tree!
changequote(, )dnl
_l2_version=`($_dir/l2-config --version) 2>/dev/null |\
sed -e 's/^.*\([0-9]\.[0-9]*[ab.][0-9]*\).*$/\1/'`
changequote([, ])dnl
if test ".$_l2_version" != .; then
_l2_location=`$_dir/l2-config --prefix`
_l2_type="installed"
_l2_cppflags=`$_dir/l2-config --cflags`
_l2_cflags=`$_dir/l2-config --cflags`
_l2_ldflags=`$_dir/l2-config --ldflags`
_l2_libs=`$_dir/l2-config --libs`
_l2_found=yes
break
fi
fi
done
fi
# in any subarea under a specified directory
# (either a special installation or a L2 source tree)
if test ".$_l2_found" = .no; then
changequote(, )dnl
_l2_found=0
for _file in x `find $with_l2 -name "l2.h" -type f -print`; do
test .$_file = .x && continue
_dir=`echo $_file | sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;'`
_l2_version=`($_dir/l2-config --version) 2>/dev/null |\
sed -e 's/^.*\([0-9]\.[0-9]*[ab.][0-9]*\).*$/\1/'`
if test ".$_l2_version" = .; then
_l2_version=`grep '^#define L2_VERSION_STR' $_file |\
sed -e 's;^#define[ ]*L2_VERSION_STR[ ]*"\([0-9]*\.[0-9]*[.ab][0-9]*\)[ ].*$;\1;'`
fi
_l2_cppflags="-I$_dir"
_l2_cflags="-I$_dir"
_l2_found=`expr $_l2_found + 1`
done
for _file in x `find $with_l2 -name "libl2.[aso]" -type f -print`; do
test .$_file = .x && continue
_dir=`echo $_file | sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;'`
_l2_ldflags="-L$_dir"
_l2_libs="-ll2"
_l2_found=`expr $_l2_found + 1`
done
changequote([, ])dnl
if test ".$_l2_found" = .2; then
_l2_location="$with_l2"
_l2_type="uninstalled"
else
_l2_version=''
fi
fi
fi
_AC_L2_VERBOSE([+ Determined Location:])
_AC_L2_VERBOSE([ o path: $_l2_location])
_AC_L2_VERBOSE([ o type: $_l2_type])
if test ".$_l2_version" = .; then
if test ".$with_l2" != .yes; then
_AC_L2_ERROR([dnl
Unable to locate OSSP l2 under $with_l2.
Please specify the correct path to either a OSSP l2 installation tree
(use --with-l2=DIR if you used --prefix=DIR for installing OSSP l2 in
the past) or to a OSSP l2 source tree (use --with-l2=DIR if DIR is a
path to a l2-X.Y.Z/ directory; but make sure the package is already
built, i.e., the "configure; make" step was already performed there).])
else
_AC_L2_ERROR([dnl
Unable to locate OSSP l2 in any system-wide location (see \$PATH).
Please specify the correct path to either a OSSP l2 installation tree
(use --with-l2=DIR if you used --prefix=DIR for installing OSSP l2 in
the past) or to a OSSP l2 source tree (use --with-l2=DIR if DIR is a
path to a l2-X.Y.Z/ directory; but make sure the package is already
built, i.e., the "configure; make" step was already performed there).])
fi
fi
dnl #
dnl # Check whether the found version is sufficiently new
dnl #
_req_version="ifelse([$1],,1.0.0,$1)"
for _var in _l2_version _req_version; do
eval "_val=\"\$${_var}\""
_major=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\1/'`
_minor=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\2/'`
_rtype=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\3/'`
_micro=`echo $_val | sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\([[ab.]]\)\([[0-9]]*\)/\4/'`
case $_rtype in
"a" ) _rtype=0 ;;
"b" ) _rtype=1 ;;
"." ) _rtype=2 ;;
esac
_hex=`echo dummy | awk '{ printf("%d%02d%1d%02d", major, minor, rtype, micro); }' \
"major=$_major" "minor=$_minor" "rtype=$_rtype" "micro=$_micro"`
eval "${_var}_hex=\"\$_hex\""
done
_AC_L2_VERBOSE([+ Determined Versions:])
_AC_L2_VERBOSE([ o existing: $_l2_version -> 0x$_l2_version_hex])
_AC_L2_VERBOSE([ o required: $_req_version -> 0x$_req_version_hex])
_ok=0
if test ".$_l2_version_hex" != .; then
if test ".$_req_version_hex" != .; then
if test $_l2_version_hex -ge $_req_version_hex; then
_ok=1
fi
fi
fi
if test ".$_ok" = .0; then
_AC_L2_ERROR([dnl
Found L2 version $_l2_version, but required at least version $_req_version.
Upgrade L2 under $_l2_location to $_req_version or higher first, please.])
fi
dnl #
dnl # Perform L2 Sanity Compile Check
dnl #
if test ".$with_l2_test" = .yes; then
_ac_save_CPPFLAGS="$CPPFLAGS"
_ac_save_CFLAGS="$CFLAGS"
_ac_save_LDFLAGS="$LDFLAGS"
_ac_save_LIBS="$LIBS"
CPPFLAGS="$CPPFLAGS $_l2_cppflags"
CFLAGS="$CFLAGS $_l2_cflags"
LDFLAGS="$LDFLAGS $_l2_ldflags"
LIBS="$LIBS $_l2_libs"
_AC_L2_VERBOSE([+ Test Build Environment:])
_AC_L2_VERBOSE([ o CPPFLAGS=\"$CPPFLAGS\"])
_AC_L2_VERBOSE([ o CFLAGS=\"$CFLAGS\"])
_AC_L2_VERBOSE([ o LDFLAGS=\"$LDFLAGS\"])
_AC_L2_VERBOSE([ o LIBS=\"$LIBS\"])
cross_compile=no
define(_code1, [dnl
#include <stdio.h>
#include <l2.h>
])
define(_code2, [dnl
int main(int argc, char *argv[])
{
FILE *fp;
if (!(fp = fopen("conftestval", "w")))
exit(1);
fprintf(fp, "hmm");
fclose(fp);
l2_init();
l2_kill();
if (!(fp = fopen("conftestval", "w")))
exit(1);
fprintf(fp, "yes");
fclose(fp);
exit(0);
}
])
_AC_L2_VERBOSE([+ Performing Sanity Checks:])
_AC_L2_VERBOSE([ o pre-processor test])
AC_TRY_CPP(_code1, _ok=yes, _ok=no)
if test ".$_ok" != .yes; then
_AC_L2_ERROR([dnl
Found OSSP l2 $_l2_version under $_l2_location, but
was unable to perform a sanity pre-processor check. This means
the OSSP l2 header l2.h was not found.
We used the following build environment:
>> CPP="$CPP"
>> CPPFLAGS="$CPPFLAGS"
See config.log for possibly more details.])
fi
_AC_L2_VERBOSE([ o link check])
AC_TRY_LINK(_code1, _code2, _ok=yes, _ok=no)
if test ".$_ok" != .yes; then
_AC_L2_ERROR([dnl
Found OSSP l2 $_l2_version under $_l2_location, but
was unable to perform a sanity linker check. This means
the OSSP l2 library libl2.a was not found.
We used the following build environment:
>> CC="$CC"
>> CFLAGS="$CFLAGS"
>> LDFLAGS="$LDFLAGS"
>> LIBS="$LIBS"
See config.log for possibly more details.])
fi
_AC_L2_VERBOSE([ o run-time check])
AC_TRY_RUN(_code1 _code2, _ok=`cat conftestval`, _ok=no, _ok=no)
if test ".$_ok" != .yes; then
if test ".$_ok" = .no; then
_AC_L2_ERROR([dnl
Found OSSP l2 $_l2_version under $_l2_location, but
was unable to perform a sanity execution check. This usually
means that the OSSP l2 shared library libl2.so is present
but \$LD_LIBRARY_PATH is incomplete to execute a L2 test.
In this case either disable this test via --without-l2-test,
or extend \$LD_LIBRARY_PATH, or build OSSP l2 as a static
library only via its --disable-shared Autoconf option.
We used the following build environment:
>> CC="$CC"
>> CFLAGS="$CFLAGS"
>> LDFLAGS="$LDFLAGS"
>> LIBS="$LIBS"
See config.log for possibly more details.])
else
_AC_L2_ERROR([dnl
Found OSSP l2 $_l2_version under $_l2_location, but
was unable to perform a sanity run-time check. This usually
means that the OSSP l2 library failed to work and possibly
caused a core dump in the test program. In this case it
is strongly recommended that you re-install OSSP l2 and this
time make sure that it really passes its "make test" procedure.
We used the following build environment:
>> CC="$CC"
>> CFLAGS="$CFLAGS"
>> LDFLAGS="$LDFLAGS"
>> LIBS="$LIBS"
See config.log for possibly more details.])
fi
fi
_extendvars="ifelse([$4],,yes,$4)"
if test ".$_extendvars" != .yes; then
CPPFLAGS="$_ac_save_CPPFLAGS"
CFLAGS="$_ac_save_CFLAGS"
LDFLAGS="$_ac_save_LDFLAGS"
LIBS="$_ac_save_LIBS"
fi
else
_extendvars="ifelse([$4],,yes,$4)"
if test ".$_extendvars" = .yes; then
if test ".$_l2_subdir" = .yes; then
CPPFLAGS="$CPPFLAGS $_l2_cppflags"
CFLAGS="$CFLAGS $_l2_cflags"
LDFLAGS="$LDFLAGS $_l2_ldflags"
LIBS="$LIBS $_l2_libs"
fi
fi
fi
L2_CPPFLAGS="$_l2_cppflags"
L2_CFLAGS="$_l2_cflags"
L2_LDFLAGS="$_l2_ldflags"
L2_LIBS="$_l2_libs"
AC_SUBST(L2_CPPFLAGS)
AC_SUBST(L2_CFLAGS)
AC_SUBST(L2_LDFLAGS)
AC_SUBST(L2_LIBS)
_AC_L2_VERBOSE([+ Final Results:])
_AC_L2_VERBOSE([ o L2_CPPFLAGS=\"$L2_CPPFLAGS\"])
_AC_L2_VERBOSE([ o L2_CFLAGS=\"$L2_CFLAGS\"])
_AC_L2_VERBOSE([ o L2_LDFLAGS=\"$L2_LDFLAGS\"])
_AC_L2_VERBOSE([ o L2_LIBS=\"$L2_LIBS\"])
fi
if test ".$with_l2" != .no; then
AC_MSG_RESULT([version $_l2_version, $_l2_type under $_l2_location])
ifelse([$5], , :, [$5])
else
AC_MSG_RESULT([no])
ifelse([$6], , :, [$6])
fi
])
