📄 libtool
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# Check that each of the things are valid numbers. case "$current" in 0 | [1-9] | [1-9][0-9]*) ;; *) $echo "$modename: CURRENT \`$current' is not a nonnegative integer" 1>&2 $echo "$modename: \`$vinfo' is not valid version information" 1>&2 exit 1 ;; esac case "$revision" in 0 | [1-9] | [1-9][0-9]*) ;; *) $echo "$modename: REVISION \`$revision' is not a nonnegative integer" 1>&2 $echo "$modename: \`$vinfo' is not valid version information" 1>&2 exit 1 ;; esac case "$age" in 0 | [1-9] | [1-9][0-9]*) ;; *) $echo "$modename: AGE \`$age' is not a nonnegative integer" 1>&2 $echo "$modename: \`$vinfo' is not valid version information" 1>&2 exit 1 ;; esac if test $age -gt $current; then $echo "$modename: AGE \`$age' is greater than the current interface number \`$current'" 1>&2 $echo "$modename: \`$vinfo' is not valid version information" 1>&2 exit 1 fi # Calculate the version variables. major= versuffix= verstring= case "$version_type" in none) ;; irix) major=`expr $current - $age + 1` versuffix="$major.$revision" verstring="sgi$major.$revision" # Add in all the interfaces that we are compatible with. loop=$revision while test $loop != 0; do iface=`expr $revision - $loop` loop=`expr $loop - 1` verstring="sgi$major.$iface:$verstring" done ;; linux) major=.`expr $current - $age` versuffix="$major.$age.$revision" ;; osf) major=`expr $current - $age` versuffix=".$current.$age.$revision" verstring="$current.$age.$revision" # Add in all the interfaces that we are compatible with. loop=$age while test $loop != 0; do iface=`expr $current - $loop` loop=`expr $loop - 1` verstring="$verstring:${iface}.0" done # Make executables depend on our current version. verstring="$verstring:${current}.0" ;; sunos) major=".$current" versuffix=".$current.$revision" ;; freebsd-aout) major=".$current" versuffix=".$current.$revision"; ;; freebsd-elf) major=".$current" versuffix=".$current"; ;; windows) # Like Linux, but with '-' rather than '.', since we only # want one extension on Windows 95. major=`expr $current - $age` versuffix="-$major-$age-$revision" ;; *) $echo "$modename: unknown library version type \`$version_type'" 1>&2 echo "Fatal configuration error. See the $PACKAGE docs for more information." 1>&2 exit 1 ;; esac # Clear the version info if we defaulted, and they specified a release. if test -z "$vinfo" && test -n "$release"; then major= verstring="0.0" if test "$need_version" = no; then versuffix= else versuffix=".0.0" fi fi # Remove version info from name if versioning should be avoided if test "$avoid_version" = yes && test "$need_version" = no; then major= versuffix= verstring="" fi # Check to see if the archive will have undefined symbols. if test "$allow_undefined" = yes; then if test "$allow_undefined_flag" = unsupported; then $echo "$modename: warning: undefined symbols not allowed in $host shared libraries" 1>&2 build_libtool_libs=no build_old_libs=yes fi else # Don't allow undefined symbols. allow_undefined_flag="$no_undefined_flag" fi dependency_libs="$deplibs" case "$host" in *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos*) # these systems don't actually have a c library (as such)! ;; *-*-rhapsody*) # rhapsody is a little odd... deplibs="$deplibs -framework System" ;; *) # Add libc to deplibs on all other systems. deplibs="$deplibs -lc" ;; esac fi # Create the output directory, or remove our outputs if we need to. if test -d $output_objdir; then $show "${rm}r $output_objdir/$outputname $output_objdir/$libname.* $output_objdir/${libname}${release}.*" $run ${rm}r $output_objdir/$outputname $output_objdir/$libname.* $output_objdir/${libname}${release}.* else $show "$mkdir $output_objdir" $run $mkdir $output_objdir status=$? if test $status -ne 0 && test ! -d $output_objdir; then exit $status fi fi # Now set the variables for building old libraries. if test "$build_old_libs" = yes && test "$build_libtool_libs" != convenience ; then oldlibs="$oldlibs $output_objdir/$libname.$libext" # Transform .lo files to .o files. oldobjs="$objs "`$echo "X$libobjs" | $SP2NL | $Xsed -e '/\.'${libext}'$/d' -e "$lo2o" | $NL2SP` fi if test "$build_libtool_libs" = yes; then # Transform deplibs into only deplibs that can be linked in shared. name_save=$name libname_save=$libname release_save=$release versuffix_save=$versuffix major_save=$major # I'm not sure if I'm treating the release correctly. I think # release should show up in the -l (ie -lgmp5) so we don't want to # add it in twice. Is that correct? release="" versuffix="" major="" newdeplibs= droppeddeps=no case "$deplibs_check_method" in pass_all) # Don't check for shared/static. Everything works. # This might be a little naive. We might want to check # whether the library exists or not. But this is on # osf3 & osf4 and I'm not really sure... Just # implementing what was already the behaviour. newdeplibs=$deplibs ;; test_compile) # This code stresses the "libraries are programs" paradigm to its # limits. Maybe even breaks it. We compile a program, linking it # against the deplibs as a proxy for the library. Then we can check # whether they linked in statically or dynamically with ldd. $rm conftest.c cat > conftest.c <<EOF int main() { return 0; }EOF $rm conftest $CC -o conftest conftest.c $deplibs if test $? -eq 0 ; then ldd_output=`ldd conftest` for i in $deplibs; do name="`expr $i : '-l\(.*\)'`" # If $name is empty we are operating on a -L argument. if test "$name" != "" ; then libname=`eval \\$echo \"$libname_spec\"` deplib_matches=`eval \\$echo \"$library_names_spec\"` set dummy $deplib_matches deplib_match=$2 if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then newdeplibs="$newdeplibs $i" else droppeddeps=yes echo echo "*** Warning: This library needs some functionality provided by $i." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have." fi else newdeplibs="$newdeplibs $i" fi done else # Error occured in the first compile. Let's try to salvage the situation: # Compile a seperate program for each library. for i in $deplibs; do name="`expr $i : '-l\(.*\)'`" # If $name is empty we are operating on a -L argument. if test "$name" != "" ; then $rm conftest $CC -o conftest conftest.c $i # Did it work? if test $? -eq 0 ; then ldd_output=`ldd conftest` libname=`eval \\$echo \"$libname_spec\"` deplib_matches=`eval \\$echo \"$library_names_spec\"` set dummy $deplib_matches deplib_match=$2 if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0 ; then newdeplibs="$newdeplibs $i" else droppeddeps=yes echo echo "*** Warning: This library needs some functionality provided by $i." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have." fi else droppeddeps=yes echo echo "*** Warning! Library $i is needed by this library but I was not able to" echo "*** make it link in! You will probably need to install it or some" echo "*** library that it depends on before this library will be fully" echo "*** functional. Installing it before continuing would be even better." fi else newdeplibs="$newdeplibs $i" fi done fi ;; file_magic*) set dummy $deplibs_check_method file_magic_regex="`expr \"$deplibs_check_method\" : \"$2 \(.*\)\"`" for a_deplib in $deplibs; do name="`expr $a_deplib : '-l\(.*\)'`" # If $name is empty we are operating on a -L argument. if test "$name" != "" ; then libname=`eval \\$echo \"$libname_spec\"` for i in $lib_search_path; do potential_libs=`ls $i/$libname[.-]* 2>/dev/null` for potent_lib in $potential_libs; do # Follow soft links. if ls -lLd "$potent_lib" 2>/dev/null \ | grep " -> " >/dev/null; then continue fi # The statement above tries to avoid entering an # endless loop below, in case of cyclic links. # We might still enter an endless loop, since a link # loop can be closed while we follow links, # but so what? potlib="$potent_lib" while test -h "$potlib" 2>/dev/null; do potliblink=`ls -ld $potlib | sed 's/.* -> //'` case "$potliblink" in [\\/]* | [A-Za-z]:[\\/]*) potlib="$potliblink";; *) potlib=`$echo "X$potlib" | $Xsed -e 's,[^/]*$,,'`"$potliblink";; esac done if eval $file_magic_cmd \"\$potlib\" 2>/dev/null \ | sed 10q \ | egrep "$file_magic_regex" > /dev/null; then newdeplibs="$newdeplibs $a_deplib" a_deplib="" break 2 fi done done if test -n "$a_deplib" ; then droppeddeps=yes echo echo "*** Warning: This library needs some functionality provided by $a_deplib." echo "*** I have the capability to make that library automatically link in when" echo "*** you link to this library. But I can only do this if you have a" echo "*** shared version of the library, which you do not appear to have." fi else # Add a -L argument. newdeplibs="$newdeplibs $a_deplib" fi done # Gone through all deplibs. ;; none | unknown | *) newdeplibs="" if $echo "X $deplibs" | $Xsed -e 's/ -lc$//' \ -e 's/ -[LR][^ ]*//g' -e 's/[ ]//g' | grep . >/dev/null; then echo if test "X$deplibs_check_method" = "Xnone"; then echo "*** Warning: inter-library dependencies are not supported in this platform." else echo "*** Warning: inter-library dependencies are not known to be supported." fi echo "*** All declared inter-library dependencies are being dropped." droppeddeps=yes fi ;; esac versuffix=$versuffix_save major=$major_save release=$release_save libname=$libname_save name=$name_save if test "$droppeddeps" = yes; then if test "$module" = yes; then echo echo "*** Warning: libtool could not satisfy all declared inter-library" echo "*** dependencies of module $libname. Therefore, libtool will create" echo "*** a static module, that should work as long as the dlopening" echo "*** application is linked with the -dlopen flag." if test -z "$global_symbol_pipe"; then echo echo "*** However, this would only work if libtool was able to extract symbol" echo "*** lists from a program, using \`nm' or equivalent, but libtool could" echo "*** not find such a program. So, this module is probably useless." echo "*** \`nm' from GNU binutils and a full rebuild may help." fi if test "$build_old_libs" = no; then oldlibs="$output_objdir/$libname.$libext" build_libtool_libs=module build_old_libs=yes else build_libtool_libs=no fi else echo "*** The inter-library dependencies that have been dropped here will be" echo "*** automatically added whenever a program is linked with this library" echo "*** or is declared to -dlopen it." fi fi # Done checking deplibs! deplibs=$newdeplibs fi # All the library-specific variables (install_libdir is set above). library_names= old_library= dlname= # Test again, we may have decided not to build it any more if test "$build_libtool_libs" = yes; then # Get the real and link names of the library. eval library_names=\"$library_names_spec\" set dummy $library_names realname="$2" shift; shift if test -n "$soname_spec"; then eval soname=\"$soname_spec\" else soname="$realname" fi lib="$output_objdir/$realname" for link do linknames="$linknames $link" done # Ensure that we have .o objects for linkers which dislike .lo # (e.g. aix) in case we are running --disable-static for obj in $libobjs; do xdir=`$echo "X$obj" | $Xsed -e 's%/[^/]*$%%'` if test "X$xdir" = "X$obj"; then xdir="." else xdir="$xdir" fi baseobj=`$echo "X$obj" | $Xsed -e 's%^.*/%%'` oldobj=`$echo "X$baseobj" | $Xsed -e "$lo2o"` if test ! -f $xdir/$oldobj; then $show "(cd $xdir && ${LN_S} $baseobj $oldobj)" $run eval '(cd $xdir && ${LN_S} $baseobj $oldobj)' || exit $? fi done # Use standard objects if they are pic test -z "$pic_flag" && libobjs=`$echo "X$libobjs" | $SP2NL | $Xsed -e "$lo2o" | $NL2SP` # Prepare the list of exported symbols if test -z "$export_symbols"; then if test "$always_export_symbols" = yes || test -n "$export_symbols_regex"; then $show "generating symbol list for \`$libname.la'" export_symbols="$output_objdir/$libname.exp" $run $rm $export_symbols eval cmds=\"$export_symbols_cmds\" IFS="${IFS= }"; save_ifs="$IFS"; IFS='~' for cmd in $cmds; do IFS="$save_ifs" $show "$cmd" $run eval "$cmd" || exit $? done IFS="$save_ifs" if test -n "$export_symbols_regex"; then $show "egrep -e \"$export_symbols_regex\" \"$export_symbols\" > \"${export_symbols}T\"" $run eval 'egrep -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"' $show "$mv \"${export_symbols}T\" \"$export_symbols\"" $run eval '$mv "${export_symbols}T" "$export_symbols"' fi fi fi if test -n "$export_symbols" && test -n "$include_expsyms"; then $run eval '$echo "X$include_expsyms" | $SP2NL >> "$export_symbols"' fi if test -n "$convenience"; then if test -n "$whole_archive_flag_spec"; then eval libobjs=\"\$libobjs $whole_archive_flag_spec\" else gentop="$output_objdir/${outputname}x" $show "${rm}r $gentop" $run ${rm}r "$gentop" $show "mkdir $gentop" $run mkdir "$gentop" status=$? if test $status -ne 0 && test ! -d "$gentop"; then exit $status fi generated="$generated $gentop" for xlib in $convenience; do # Extract the objects. case "$xlib" in [\\/]* | [A-Za-z]:[\\/]*) xabs="$xlib" ;; *) xabs=`pwd`"/$xlib" ;; esac xlib=`$echo "X$xlib" | $Xsed -e 's%^.*/%%'` xdir="$gentop/$xlib" $show "${rm}r $xdir" $run ${rm}r "$xdir" $show "mkdir $xdir" $run mkdir "$xdir" status=$? if test $sta
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