| [10] | 1 | #### This script is meant to be sourced by ltconfig.
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| 2 |
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| 3 | # ltcf-c.sh - Create a C compiler specific configuration
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| 4 | #
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| 5 | # Copyright (C) 1996-2000 Free Software Foundation, Inc.
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| 6 | # Originally by Gordon Matzigkeit <[email protected]>, 1996
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| 7 | #
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| 8 | # This file is free software; you can redistribute it and/or modify it
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| 9 | # under the terms of the GNU General Public License as published by
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| 10 | # the Free Software Foundation; either version 2 of the License, or
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| 11 | # (at your option) any later version.
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| 12 | #
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| 13 | # This program is distributed in the hope that it will be useful, but
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| 14 | # WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 16 | # General Public License for more details.
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| 17 | #
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| 18 | # You should have received a copy of the GNU General Public License
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| 19 | # along with this program; if not, write to the Free Software
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| 20 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 21 | #
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| 22 | # As a special exception to the GNU General Public License, if you
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| 23 | # distribute this file as part of a program that contains a
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| 24 | # configuration script generated by Autoconf, you may include it under
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| 25 | # the same distribution terms that you use for the rest of that program.
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| 26 |
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| 27 |
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| 28 | # Source file extension for C test sources.
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| 29 | ac_ext=c
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| 30 |
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| 31 | # Object file extension for compiled C test sources.
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| 32 | objext=o
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| 33 |
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| 34 | # Code to be used in simple compile tests
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| 35 | lt_simple_compile_test_code="int some_variable = 0;"
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| 36 |
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| 37 | # Code to be used in simple link tests
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| 38 | lt_simple_link_test_code='main(){return(0);}'
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| 39 |
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| 40 | ## Linker Characteristics
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| 41 | case "$host_os" in
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| 42 | cygwin* | mingw*)
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| 43 | # FIXME: the MSVC++ port hasn't been tested in a loooong time
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| 44 | # When not using gcc, we currently assume that we are using
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| 45 | # Microsoft Visual C++.
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| 46 | if test "$with_gcc" != yes; then
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| 47 | with_gnu_ld=no
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| 48 | fi
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| 49 | ;;
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| 50 |
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| 51 | esac
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| 52 |
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| 53 | ld_shlibs=yes
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| 54 | if test "$with_gnu_ld" = yes; then
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| 55 | # If archive_cmds runs LD, not CC, wlarc should be empty
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| 56 | wlarc='${wl}'
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| 57 |
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| 58 | # See if GNU ld supports shared libraries.
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| 59 | case "$host_os" in
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| 60 | aix3* | aix4*)
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| 61 | # On AIX, the GNU linker is very broken
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| 62 | ld_shlibs=no
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| 63 | cat <<EOF 1>&2
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| 64 |
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| 65 | *** Warning: the GNU linker, at least up to release 2.9.1, is reported
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| 66 | *** to be unable to reliably create shared libraries on AIX.
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| 67 | *** Therefore, libtool is disabling shared libraries support. If you
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| 68 | *** really care for shared libraries, you may want to modify your PATH
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| 69 | *** so that a non-GNU linker is found, and then restart.
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| 70 |
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| 71 | EOF
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| 72 | ;;
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| 73 |
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| 74 | amigaos*)
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| 75 | archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
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| 76 | hardcode_libdir_flag_spec='-L$libdir'
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| 77 | hardcode_minus_L=yes
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| 78 |
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| 79 | # Samuel A. Falvo II <[email protected]> reports
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| 80 | # that the semantics of dynamic libraries on AmigaOS, at least up
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| 81 | # to version 4, is to share data among multiple programs linked
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| 82 | # with the same dynamic library. Since this doesn't match the
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| 83 | # behavior of shared libraries on other platforms, we can use
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| 84 | # them.
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| 85 | ld_shlibs=no
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| 86 | ;;
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| 87 |
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| 88 | beos*)
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| 89 | if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
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| 90 | allow_undefined_flag=unsupported
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| 91 | # Joseph Beckenbach <[email protected]> says some releases of gcc
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| 92 | # support --undefined. This deserves some investigation. FIXME
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| 93 | archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
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| 94 | else
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| 95 | ld_shlibs=no
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| 96 | fi
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| 97 | ;;
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| 98 |
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| 99 | cygwin* | mingw*)
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| 100 | # hardcode_libdir_flag_spec is actually meaningless, as there is
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| 101 | # no search path for DLLs.
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| 102 | hardcode_libdir_flag_spec='-L$libdir'
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| 103 | allow_undefined_flag=unsupported
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| 104 | always_export_symbols=yes
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| 105 |
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| 106 | extract_expsyms_cmds='test -f $output_objdir/impgen.c || \
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| 107 | sed -e "/^# \/\* impgen\.c starts here \*\//,/^# \/\* impgen.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/impgen.c~
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| 108 | test -f $output_objdir/impgen.exe || (cd $output_objdir && \
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| 109 | if test "x$HOST_CC" != "x" ; then $HOST_CC -o impgen impgen.c ; \
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| 110 | else $CC -o impgen impgen.c ; fi)~
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| 111 | $output_objdir/impgen $dir/$soname > $output_objdir/$soname-def'
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| 112 |
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| 113 | old_archive_from_expsyms_cmds='$DLLTOOL --as=$AS --dllname $soname --def $output_objdir/$soname-def --output-lib $output_objdir/$newlib'
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| 114 |
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| 115 | # cygwin and mingw dlls have different entry points and sets of symbols
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| 116 | # to exclude.
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| 117 | # FIXME: what about values for MSVC?
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| 118 | dll_entry=__cygwin_dll_entry@12
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| 119 | dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12~
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| 120 | case "$host_os" in
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| 121 | mingw*)
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| 122 | # mingw values
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| 123 | dll_entry=_DllMainCRTStartup@12
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| 124 | dll_exclude_symbols=DllMain@12,DllMainCRTStartup@12,DllEntryPoint@12~
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| 125 | ;;
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| 126 | esac
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| 127 |
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| 128 | # mingw and cygwin differ, and it's simplest to just exclude the union
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| 129 | # of the two symbol sets.
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| 130 | dll_exclude_symbols=DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12,DllMainCRTStartup@12,DllEntryPoint@12
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| 131 |
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| 132 | # recent cygwin and mingw systems supply a stub DllMain which the user
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| 133 | # can override, but on older systems we have to supply one (in ltdll.c)
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| 134 | if test "x$lt_cv_need_dllmain" = "xyes"; then
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| 135 | ltdll_obj='$output_objdir/$soname-ltdll.'"$objext "
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| 136 | ltdll_cmds='test -f $output_objdir/$soname-ltdll.c || sed -e "/^# \/\* ltdll\.c starts here \*\//,/^# \/\* ltdll.c ends here \*\// { s/^# //; p; }" -e d < $0 > $output_objdir/$soname-ltdll.c~
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| 137 | test -f $output_objdir/$soname-ltdll.$objext || (cd $output_objdir && $CC -c $soname-ltdll.c)~'
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| 138 | else
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| 139 | ltdll_obj=
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| 140 | ltdll_cmds=
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| 141 | fi
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| 142 |
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| 143 | # Extract the symbol export list from an `--export-all' def file,
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| 144 | # then regenerate the def file from the symbol export list, so that
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| 145 | # the compiled dll only exports the symbol export list.
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| 146 | # Be careful not to strip the DATA tag left be newer dlltools.
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| 147 | export_symbols_cmds="$ltdll_cmds"'
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| 148 | $DLLTOOL --export-all --exclude-symbols '$dll_exclude_symbols' --output-def $output_objdir/$soname-def '$ltdll_obj'$libobjs $convenience~
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| 149 | sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]*//" -e "s/ *;.*$//" < $output_objdir/$soname-def > $export_symbols'
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| 150 |
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| 151 | # If DATA tags from a recent dlltool are present, honour them!
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| 152 | archive_expsym_cmds='echo EXPORTS > $output_objdir/$soname-def~
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| 153 | _lt_hint=1;
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| 154 | cat $export_symbols | while read symbol; do
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| 155 | set dummy \$symbol;
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| 156 | case \$# in
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| 157 | 2) echo " \$2 @ \$_lt_hint ; " >> $output_objdir/$soname-def;;
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| 158 | *) echo " \$2 @ \$_lt_hint \$3 ; " >> $output_objdir/$soname-def;;
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| 159 | esac;
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| 160 | _lt_hint=`expr 1 + \$_lt_hint`;
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| 161 | done~
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| 162 | '"$ltdll_cmds"'
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| 163 | $CC -Wl,--base-file,$output_objdir/$soname-base '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags~
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| 164 | $DLLTOOL --as=$AS --dllname $soname --exclude-symbols '$dll_exclude_symbols' --def $output_objdir/$soname-def --base-file $output_objdir/$soname-base --output-exp $output_objdir/$soname-exp~
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| 165 | $CC -Wl,--base-file,$output_objdir/$soname-base $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags~
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| 166 | $DLLTOOL --as=$AS --dllname $soname --exclude-symbols '$dll_exclude_symbols' --def $output_objdir/$soname-def --base-file $output_objdir/$soname-base --output-exp $output_objdir/$soname-exp~
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| 167 | $CC $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' -Wl,-e,'$dll_entry' -o $lib '$ltdll_obj'$libobjs $deplibs $compiler_flags'
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| 168 | ;;
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| 169 |
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| 170 | netbsd*)
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| 171 | if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
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| 172 | archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
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| 173 | wlarc=
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| 174 | else
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| 175 | archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
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| 176 | archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
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| 177 | fi
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| 178 | ;;
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| 179 |
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| 180 | solaris* | sysv5*)
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| 181 | if $LD -v 2>&1 | egrep 'BFD 2\.8' > /dev/null; then
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| 182 | ld_shlibs=no
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| 183 | cat <<EOF 1>&2
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| 184 |
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| 185 | *** Warning: The releases 2.8.* of the GNU linker cannot reliably
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| 186 | *** create shared libraries on Solaris systems. Therefore, libtool
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| 187 | *** is disabling shared libraries support. We urge you to upgrade GNU
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| 188 | *** binutils to release 2.9.1 or newer. Another option is to modify
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| 189 | *** your PATH or compiler configuration so that the native linker is
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| 190 | *** used, and then restart.
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| 191 |
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| 192 | EOF
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| 193 | elif $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
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| 194 | archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
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| 195 | archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
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| 196 | else
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| 197 | ld_shlibs=no
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| 198 | fi
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| 199 | ;;
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| 200 |
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| 201 | sunos4*)
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| 202 | archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
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| 203 | wlarc=
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| 204 | hardcode_direct=yes
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| 205 | hardcode_shlibpath_var=no
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| 206 | ;;
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| 207 |
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| 208 | *)
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| 209 | if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
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| 210 | archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname -o $lib'
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| 211 | archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
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| 212 | else
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| 213 | ld_shlibs=no
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| 214 | fi
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| 215 | ;;
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| 216 | esac
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| 217 |
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| 218 | if test "$ld_shlibs" = yes; then
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| 219 | runpath_var=LD_RUN_PATH
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| 220 | hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
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| 221 | export_dynamic_flag_spec='${wl}--export-dynamic'
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| 222 | case $host_os in
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| 223 | cygwin* | mingw*)
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| 224 | # dlltool doesn't understand --whole-archive et. al.
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| 225 | whole_archive_flag_spec=
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| 226 | ;;
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| 227 | *)
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| 228 | # ancient GNU ld didn't support --whole-archive et. al.
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| 229 | if $LD --help 2>&1 | egrep 'no-whole-archive' > /dev/null; then
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| 230 | whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
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| 231 | else
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| 232 | whole_archive_flag_spec=
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| 233 | fi
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| 234 | ;;
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| 235 | esac
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| 236 | fi
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| 237 | else
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| 238 | # PORTME fill in a description of your system's linker (not GNU ld)
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| 239 | case "$host_os" in
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| 240 | aix3*)
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| 241 | allow_undefined_flag=unsupported
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| 242 | always_export_symbols=yes
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| 243 | archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
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| 244 | # Note: this linker hardcodes the directories in LIBPATH if there
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| 245 | # are no directories specified by -L.
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| 246 | hardcode_minus_L=yes
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| 247 | if test "$with_gcc" = yes && test -z "$link_static_flag"; then
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| 248 | # Neither direct hardcoding nor static linking is supported with a
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| 249 | # broken collect2.
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| 250 | hardcode_direct=unsupported
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| 251 | fi
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| 252 | ;;
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| 253 |
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| 254 | aix4*)
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| 255 | hardcode_libdir_flag_spec='${wl}-b ${wl}nolibpath ${wl}-b ${wl}libpath:$libdir:/usr/lib:/lib'
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| 256 | hardcode_libdir_separator=':'
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| 257 | if test "$with_gcc" = yes; then
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| 258 | collect2name=`${CC} -print-prog-name=collect2`
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| 259 | if test -f "$collect2name" && \
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| 260 | strings "$collect2name" | grep resolve_lib_name >/dev/null
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| 261 | then
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| 262 | # We have reworked collect2
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| 263 | hardcode_direct=yes
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| 264 | else
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| 265 | # We have old collect2
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| 266 | hardcode_direct=unsupported
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| 267 | # It fails to find uninstalled libraries when the uninstalled
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| 268 | # path is not listed in the libpath. Setting hardcode_minus_L
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| 269 | # to unsupported forces relinking
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| 270 | hardcode_minus_L=yes
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| 271 | hardcode_libdir_flag_spec='-L$libdir'
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| 272 | hardcode_libdir_separator=
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| 273 | fi
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| 274 | shared_flag='-shared'
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| 275 | else
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| 276 | shared_flag='${wl}-bM:SRE'
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| 277 | hardcode_direct=yes
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| 278 | fi
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| 279 | allow_undefined_flag=' ${wl}-berok'
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| 280 | archive_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}'
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| 281 | archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}'
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| 282 | case "$host_os" in aix4.[01]|aix4.[01].*)
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| 283 | # According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on
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| 284 | always_export_symbols=yes ;;
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| 285 | esac
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| 286 | ;;
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| 287 |
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| 288 | amigaos*)
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| 289 | archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
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| 290 | hardcode_libdir_flag_spec='-L$libdir'
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| 291 | hardcode_minus_L=yes
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| 292 | # see comment about different semantics on the GNU ld section
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| 293 | ld_shlibs=no
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| 294 | ;;
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| 295 |
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| 296 | cygwin* | mingw*)
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| 297 | # When not using gcc, we currently assume that we are using
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| 298 | # Microsoft Visual C++.
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| 299 | # hardcode_libdir_flag_spec is actually meaningless, as there is
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| 300 | # no search path for DLLs.
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| 301 | hardcode_libdir_flag_spec=' '
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| 302 | allow_undefined_flag=unsupported
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| 303 | # Tell ltmain to make .lib files, not .a files.
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| 304 | libext=lib
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| 305 | # FIXME: Setting linknames here is a bad hack.
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| 306 | archive_cmds='$CC -o $lib $libobjs $compiler_flags `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
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| 307 | # The linker will automatically build a .lib file if we build a DLL.
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| 308 | old_archive_from_new_cmds='true'
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| 309 | # FIXME: Should let the user specify the lib program.
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| 310 | old_archive_cmds='lib /OUT:$oldlib$oldobjs$old_deplibs'
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| 311 | fix_srcfile_path='`cygpath -w $srcfile`'
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| 312 | ;;
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| 313 |
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| 314 | freebsd1*)
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| 315 | ld_shlibs=no
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| 316 | ;;
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| 317 |
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| 318 | # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
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| 319 | # support. Future versions do this automatically, but an explicit c++rt0.o
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| 320 | # does not break anything, and helps significantly (at the cost of a little
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| 321 | # extra space).
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| 322 | freebsd2.2*)
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| 323 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
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| 324 | hardcode_libdir_flag_spec='-R$libdir'
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| 325 | hardcode_direct=yes
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| 326 | hardcode_shlibpath_var=no
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| 327 | ;;
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| 328 |
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| 329 | # Unfortunately, older versions of FreeBSD 2 do not have this feature.
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| 330 | freebsd2*)
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| 331 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
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| 332 | hardcode_direct=yes
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| 333 | hardcode_minus_L=yes
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| 334 | hardcode_shlibpath_var=no
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| 335 | ;;
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| 336 |
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| 337 | # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
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| 338 | freebsd*)
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| 339 | archive_cmds='$CC -shared -o $lib $libobjs $deplibs $compiler_flags'
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| 340 | hardcode_libdir_flag_spec='-R$libdir'
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| 341 | hardcode_direct=yes
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| 342 | hardcode_shlibpath_var=no
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| 343 | ;;
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| 344 |
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| 345 | hpux9* | hpux10* | hpux11*)
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| 346 | case "$host_os" in
|
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| 347 | hpux9*) archive_cmds='$rm $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
|
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| 348 | *) archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags' ;;
|
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| 349 | esac
|
|---|
| 350 | hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
|
|---|
| 351 | hardcode_libdir_separator=:
|
|---|
| 352 | hardcode_direct=yes
|
|---|
| 353 | hardcode_minus_L=yes # Not in the search PATH, but as the default
|
|---|
| 354 | # location of the library.
|
|---|
| 355 | export_dynamic_flag_spec='${wl}-E'
|
|---|
| 356 | ;;
|
|---|
| 357 |
|
|---|
| 358 | irix5* | irix6*)
|
|---|
| 359 | if test "$with_gcc" = yes; then
|
|---|
| 360 | archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
|
|---|
| 361 | else
|
|---|
| 362 | archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
|
|---|
| 363 | fi
|
|---|
| 364 | hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
|
|---|
| 365 | hardcode_libdir_separator=:
|
|---|
| 366 | link_all_deplibs=yes
|
|---|
| 367 | ;;
|
|---|
| 368 |
|
|---|
| 369 | netbsd*)
|
|---|
| 370 | if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
|
|---|
| 371 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
|
|---|
| 372 | else
|
|---|
| 373 | archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
|
|---|
| 374 | fi
|
|---|
| 375 | hardcode_libdir_flag_spec='${wl}-R$libdir'
|
|---|
| 376 | hardcode_direct=yes
|
|---|
| 377 | hardcode_shlibpath_var=no
|
|---|
| 378 | ;;
|
|---|
| 379 |
|
|---|
| 380 | openbsd*)
|
|---|
| 381 | archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
|
|---|
| 382 | hardcode_libdir_flag_spec='-R$libdir'
|
|---|
| 383 | hardcode_direct=yes
|
|---|
| 384 | hardcode_shlibpath_var=no
|
|---|
| 385 | ;;
|
|---|
| 386 |
|
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| |
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