View file File name : pth.m4 Content :dnl ## dnl ## GNU Pth - The GNU Portable Threads dnl ## Copyright (c) 1999-2006 Ralf S. Engelschall <rse@engelschall.com> dnl ## dnl ## This file is part of GNU Pth, a non-preemptive thread scheduling dnl ## library which can be found at http://www.gnu.org/software/pth/. dnl ## dnl ## This library is free software; you can redistribute it and/or dnl ## modify it under the terms of the GNU Lesser General Public dnl ## License as published by the Free Software Foundation; either dnl ## version 2.1 of the License, or (at your option) any later version. dnl ## dnl ## This library is distributed in the hope that it will be useful, dnl ## but WITHOUT ANY WARRANTY; without even the implied warranty of dnl ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU dnl ## Lesser General Public License for more details. dnl ## dnl ## You should have received a copy of the GNU Lesser General Public dnl ## License along with this library; if not, write to the Free Software dnl ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 dnl ## USA, or contact Ralf S. Engelschall <rse@engelschall.com>. dnl ## dnl ## pth.m4: Autoconf macro for locating GNU Pth from within dnl ## configure.ac of third-party software packages dnl ## dnl ## dnl ## Synopsis: dnl ## AC_CHECK_PTH([MIN-VERSION [, # minimum Pth version, e.g. 1.2.0 dnl ## DEFAULT-WITH-PTH [, # default value for --with-pth option dnl ## DEFAULT-WITH-PTH-TEST [,# default value for --with-pth-test option dnl ## EXTEND-VARS [, # whether CFLAGS/LDFLAGS/etc are extended dnl ## ACTION-IF-FOUND [, # action to perform if Pth was found dnl ## ACTION-IF-NOT-FOUND # action to perform if Pth was not found dnl ## ]]]]]]) dnl ## Examples: dnl ## AC_CHECK_PTH(1.2.0) dnl ## AC_CHECK_PTH(1.2.0,,,no,CFLAGS="$CFLAGS -DHAVE_PTH $PTH_CFLAGS") dnl ## AC_CHECK_PTH(1.2.0,yes,yes,yes,CFLAGS="$CFLAGS -DHAVE_PTH") dnl ## dnl dnl # auxilliary macros AC_DEFUN([_AC_PTH_ERROR], [dnl AC_MSG_RESULT([*FAILED*]) m4_define(_ac_pth_line,dnl "+------------------------------------------------------------------------+") echo " _ac_pth_line" 1>&2 cat <<EOT | sed -e 's/^[[ ]]*/ | /' -e 's/>>/ /' 1>&2 $1 EOT echo " _ac_pth_line" 1>&2 exit 1 ]) AC_DEFUN([_AC_PTH_VERBOSE], [dnl if test ".$verbose" = .yes; then AC_MSG_RESULT([ $1]) fi ]) dnl # the user macro AC_DEFUN([AC_CHECK_PTH], [dnl dnl dnl # prerequisites AC_REQUIRE([AC_PROG_CC])dnl AC_REQUIRE([AC_PROG_CPP])dnl dnl PTH_CPPFLAGS='' PTH_CFLAGS='' PTH_LDFLAGS='' PTH_LIBS='' AC_SUBST(PTH_CPPFLAGS) AC_SUBST(PTH_CFLAGS) AC_SUBST(PTH_LDFLAGS) AC_SUBST(PTH_LIBS) dnl # command line options AC_MSG_CHECKING(for GNU Pth) _AC_PTH_VERBOSE([]) AC_ARG_WITH(pth,dnl [ --with-pth[=ARG] Build with GNU Pth Library (default=]ifelse([$2],,yes,$2)[)],dnl ,dnl with_pth="ifelse([$2],,yes,$2)" )dnl AC_ARG_WITH(pth-test,dnl [ --with-pth-test Perform GNU Pth Sanity Test (default=]ifelse([$3],,yes,$3)[)],dnl ,dnl with_pth_test="ifelse([$3],,yes,$3)" )dnl _AC_PTH_VERBOSE([+ Command Line Options:]) _AC_PTH_VERBOSE([ o --with-pth=$with_pth]) _AC_PTH_VERBOSE([ o --with-pth-test=$with_pth_test]) dnl dnl # configuration if test ".$with_pth" != .no; then _pth_subdir=no _pth_subdir_opts='' case "$with_pth" in subdir:* ) _pth_subdir=yes changequote(, )dnl _pth_subdir_opts=`echo $with_pth | sed -e 's/^subdir:[^ ]*[ ]*//'` with_pth=`echo $with_pth | sed -e 's/^subdir:\([^ ]*\).*$/\1/'` changequote([, ])dnl ;; esac _pth_version="" _pth_location="" _pth_type="" _pth_cppflags="" _pth_cflags="" _pth_ldflags="" _pth_libs="" if test ".$with_pth" = .yes; then # via config script in $PATH changequote(, )dnl _pth_version=`(pth-config --version) 2>/dev/null |\ sed -e 's/^.*\([0-9]\.[0-9]*[ab.][0-9]*\).*$/\1/'` changequote([, ])dnl if test ".$_pth_version" != .; then _pth_location=`pth-config --prefix` _pth_type='installed' _pth_cppflags=`pth-config --cflags` _pth_cflags=`pth-config --cflags` _pth_ldflags=`pth-config --ldflags` _pth_libs=`pth-config --libs --all` fi elif test -d "$with_pth"; then with_pth=`echo $with_pth | sed -e 's;/*$;;'` _pth_found=no # via locally included source tree if test ".$_pth_subdir" = .yes; then _pth_location="$with_pth" _pth_type='local' _pth_cppflags="-I$with_pth" _pth_cflags="-I$with_pth" if test -f "$with_pth/ltconfig"; then _pth_ldflags="-L$with_pth/.libs" else _pth_ldflags="-L$with_pth" fi _pth_libs="-lpth" changequote(, )dnl _pth_version=`grep '^const char PTH_Hello' $with_pth/pth_vers.c |\ sed -e 's;^.*Version[ ]*\([0-9]*\.[0-9]*[.ab][0-9]*\)[ ].*$;\1;'` changequote([, ])dnl _pth_found=yes ac_configure_args="$ac_configure_args --enable-subdir $_pth_subdir_opts" with_pth_test=no fi # via config script under a specified directory # (a standard installation, but not a source tree) if test ".$_pth_found" = .no; then for _dir in $with_pth/bin $with_pth; do if test -f "$_dir/pth-config"; then test -f "$_dir/pth-config.in" && continue # pth-config in source tree! changequote(, )dnl _pth_version=`($_dir/pth-config --version) 2>/dev/null |\ sed -e 's/^.*\([0-9]\.[0-9]*[ab.][0-9]*\).*$/\1/'` changequote([, ])dnl if test ".$_pth_version" != .; then _pth_location=`$_dir/pth-config --prefix` _pth_type="installed" _pth_cppflags=`$_dir/pth-config --cflags` _pth_cflags=`$_dir/pth-config --cflags` _pth_ldflags=`$_dir/pth-config --ldflags` _pth_libs=`$_dir/pth-config --libs --all` _pth_found=yes break fi fi done fi # in any subarea under a specified directory # (either a special installation or a Pth source tree) if test ".$_pth_found" = .no; then changequote(, )dnl _pth_found=0 for _file in x `find $with_pth -name "pth.h" -type f -print`; do test .$_file = .x && continue _dir=`echo $_file | sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;'` _pth_version=`($_dir/pth-config --version) 2>/dev/null |\ sed -e 's/^.*\([0-9]\.[0-9]*[ab.][0-9]*\).*$/\1/'` if test ".$_pth_version" = .; then _pth_version=`grep '^#define PTH_VERSION_STR' $_file |\ sed -e 's;^#define[ ]*PTH_VERSION_STR[ ]*"\([0-9]*\.[0-9]*[.ab][0-9]*\)[ ].*$;\1;'` fi _pth_cppflags="-I$_dir" _pth_cflags="-I$_dir" _pth_found=`expr $_pth_found + 1` done for _file in x `find $with_pth -name "libpth.[aso]" -type f -print`; do test .$_file = .x && continue _dir=`echo $_file | sed -e 's;[^/]*$;;' -e 's;\(.\)/$;\1;'` _pth_ldflags="-L$_dir" _pth_libs="-lpth" _pth_found=`expr $_pth_found + 1` done changequote([, ])dnl if test ".$_pth_found" = .2; then _pth_location="$with_pth" _pth_type="uninstalled" else _pth_version='' fi fi fi _AC_PTH_VERBOSE([+ Determined Location:]) _AC_PTH_VERBOSE([ o path: $_pth_location]) _AC_PTH_VERBOSE([ o type: $_pth_type]) if test ".$_pth_version" = .; then if test ".$with_pth" != .yes; then _AC_PTH_ERROR([dnl Unable to locate GNU Pth under $with_pth. Please specify the correct path to either a GNU Pth installation tree (use --with-pth=DIR if you used --prefix=DIR for installing GNU Pth in the past) or to a GNU Pth source tree (use --with-pth=DIR if DIR is a path to a pth-X.Y.Z/ directory; but make sure the package is already built, i.e., the "configure; make" step was already performed there).]) else _AC_PTH_ERROR([dnl Unable to locate GNU Pth in any system-wide location (see \$PATH). Please specify the correct path to either a GNU Pth installation tree (use --with-pth=DIR if you used --prefix=DIR for installing GNU Pth in the past) or to a GNU Pth source tree (use --with-pth=DIR if DIR is a path to a pth-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,$1)" for _var in _pth_version _req_version; do eval "_val=\"\$${_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_PTH_VERBOSE([+ Determined Versions:]) _AC_PTH_VERBOSE([ o existing: $_pth_version -> 0x$_pth_version_hex]) _AC_PTH_VERBOSE([ o required: $_req_version -> 0x$_req_version_hex]) _ok=0 if test ".$_pth_version_hex" != .; then if test ".$_req_version_hex" != .; then if test $_pth_version_hex -ge $_req_version_hex; then _ok=1 fi fi fi if test ".$_ok" = .0; then _AC_PTH_ERROR([dnl Found Pth version $_pth_version, but required at least version $_req_version. Upgrade Pth under $_pth_location to $_req_version or higher first, please.]) fi dnl # dnl # Perform Pth Sanity Compile Check dnl # if test ".$with_pth_test" = .yes; then _ac_save_CPPFLAGS="$CPPFLAGS" _ac_save_CFLAGS="$CFLAGS" _ac_save_LDFLAGS="$LDFLAGS" _ac_save_LIBS="$LIBS" CPPFLAGS="$CPPFLAGS $_pth_cppflags" CFLAGS="$CFLAGS $_pth_cflags" LDFLAGS="$LDFLAGS $_pth_ldflags" LIBS="$LIBS $_pth_libs" _AC_PTH_VERBOSE([+ Test Build Environment:]) _AC_PTH_VERBOSE([ o CPPFLAGS=\"$CPPFLAGS\"]) _AC_PTH_VERBOSE([ o CFLAGS=\"$CFLAGS\"]) _AC_PTH_VERBOSE([ o LDFLAGS=\"$LDFLAGS\"]) _AC_PTH_VERBOSE([ o LIBS=\"$LIBS\"]) cross_compile=no m4_define(_code1, [dnl #include <stdio.h> #include <pth.h> ]) m4_define(_code2, [dnl int main(int argc, char *argv[]) { FILE *fp; if (!(fp = fopen("conftestval", "w"))) exit(1); fprintf(fp, "hmm"); fclose(fp); pth_init(); pth_kill(); if (!(fp = fopen("conftestval", "w"))) exit(1); fprintf(fp, "yes"); fclose(fp); exit(0); } ]) _AC_PTH_VERBOSE([+ Performing Sanity Checks:]) _AC_PTH_VERBOSE([ o pre-processor test]) AC_TRY_CPP(_code1, _ok=yes, _ok=no) if test ".$_ok" != .yes; then _AC_PTH_ERROR([dnl Found GNU Pth $_pth_version under $_pth_location, but was unable to perform a sanity pre-processor check. This means the GNU Pth header pth.h was not found. We used the following build environment: >> CPP="$CPP" >> CPPFLAGS="$CPPFLAGS" See config.log for possibly more details.]) fi _AC_PTH_VERBOSE([ o link check]) AC_TRY_LINK(_code1, _code2, _ok=yes, _ok=no) if test ".$_ok" != .yes; then _AC_PTH_ERROR([dnl Found GNU Pth $_pth_version under $_pth_location, but was unable to perform a sanity linker check. This means the GNU Pth library libpth.a was not found. We used the following build environment: >> CC="$CC" >> CFLAGS="$CFLAGS" >> LDFLAGS="$LDFLAGS" >> LIBS="$LIBS" See config.log for possibly more details.]) fi _AC_PTH_VERBOSE([ o run-time check]) AC_TRY_RUN(_code1 _code2, _ok=`cat conftestval`, _ok=no, _ok=no) if test ".$_ok" != .yes; then if test ".$_ok" = .no; then _AC_PTH_ERROR([dnl Found GNU Pth $_pth_version under $_pth_location, but was unable to perform a sanity execution check. This usually means that the GNU Pth shared library libpth.so is present but \$LD_LIBRARY_PATH is incomplete to execute a Pth test. In this case either disable this test via --without-pth-test, or extend \$LD_LIBRARY_PATH, or build GNU Pth as a static library only via its --disable-shared Autoconf option. We used the following build environment: >> CC="$CC" >> CFLAGS="$CFLAGS" >> LDFLAGS="$LDFLAGS" >> LIBS="$LIBS" See config.log for possibly more details.]) else _AC_PTH_ERROR([dnl Found GNU Pth $_pth_version under $_pth_location, but was unable to perform a sanity run-time check. This usually means that the GNU Pth library failed to work and possibly caused a core dump in the test program. In this case it is strongly recommended that you re-install GNU Pth and this time make sure that it really passes its "make test" procedure. We used the following build environment: >> CC="$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 ".$_pth_subdir" = .yes; then CPPFLAGS="$CPPFLAGS $_pth_cppflags" CFLAGS="$CFLAGS $_pth_cflags" LDFLAGS="$LDFLAGS $_pth_ldflags" LIBS="$LIBS $_pth_libs" fi fi fi PTH_CPPFLAGS="$_pth_cppflags" PTH_CFLAGS="$_pth_cflags" PTH_LDFLAGS="$_pth_ldflags" PTH_LIBS="$_pth_libs" AC_SUBST(PTH_CPPFLAGS) AC_SUBST(PTH_CFLAGS) AC_SUBST(PTH_LDFLAGS) AC_SUBST(PTH_LIBS) _AC_PTH_VERBOSE([+ Final Results:]) _AC_PTH_VERBOSE([ o PTH_CPPFLAGS=\"$PTH_CPPFLAGS\"]) _AC_PTH_VERBOSE([ o PTH_CFLAGS=\"$PTH_CFLAGS\"]) _AC_PTH_VERBOSE([ o PTH_LDFLAGS=\"$PTH_LDFLAGS\"]) _AC_PTH_VERBOSE([ o PTH_LIBS=\"$PTH_LIBS\"]) fi if test ".$with_pth" != .no; then AC_MSG_RESULT([version $_pth_version, $_pth_type under $_pth_location]) ifelse([$5], , :, [$5]) else AC_MSG_RESULT([no]) ifelse([$6], , :, [$6]) fi ])