support/config.rpath

   1 #! /bin/sh
   2 # Output a system dependent set of variables, describing how to set the
   3 # run time search path of shared libraries in an executable.
   4 #
   5 #   Copyright 1996-2018 Free Software Foundation, Inc.
   6 #   Taken from GNU libtool, 2001
   7 #   Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
   8 #
   9 #   This file is free software; the Free Software Foundation gives
  10 #   unlimited permission to copy and/or distribute it, with or without
  11 #   modifications, as long as this notice is preserved.
  12 #
  13 # The first argument passed to this file is the canonical host specification,
  14 #    CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
  15 # or
  16 #    CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
  17 # The environment variables CC, GCC, LDFLAGS, LD, with_gnu_ld
  18 # should be set by the caller.
  19 #
  20 # The set of defined variables is at the end of this script.
  21
  22 # Known limitations:
  23 # - On IRIX 6.5 with CC="cc", the run time search patch must not be longer
  24 #   than 256 bytes, otherwise the compiler driver will dump core. The only
  25 #   known workaround is to choose shorter directory names for the build
  26 #   directory and/or the installation directory.
  27
  28 # All known linkers require a '.a' archive for static linking (except MSVC,
  29 # which needs '.lib').
  30 libext=a
  31 shrext=.so
  32
  33 host="$1"
  34 host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
  35 host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
  36 host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
  37
  38 # Code taken from libtool.m4's _LT_CC_BASENAME.
  39
  40 for cc_temp in $CC""; do
  41   case $cc_temp in
  42     compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
  43     distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
  44     \-*) ;;
  45     *) break;;
  46   esac
  47 done
  48 cc_basename=`echo "$cc_temp" | sed -e 's%^.*/%%'`
  49
  50 # Code taken from libtool.m4's _LT_COMPILER_PIC.
  51
  52 wl=
  53 if test "$GCC" = yes; then
  54   wl='-Wl,'
  55 else
  56   case "$host_os" in
  57     aix*)
  58       wl='-Wl,'
  59       ;;
  60     mingw* | cygwin* | pw32* | os2* | cegcc*)
  61       ;;
  62     hpux9* | hpux10* | hpux11*)
  63       wl='-Wl,'
  64       ;;
  65     irix5* | irix6* | nonstopux*)
  66       wl='-Wl,'
  67       ;;
  68     linux* | k*bsd*-gnu | kopensolaris*-gnu)
  69       case $cc_basename in
  70         ecc*)
  71           wl='-Wl,'
  72           ;;
  73         icc* | ifort*)
  74           wl='-Wl,'
  75           ;;
  76         lf95*)
  77           wl='-Wl,'
  78           ;;
  79         nagfor*)
  80           wl='-Wl,-Wl,,'
  81           ;;
  82         pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
  83           wl='-Wl,'
  84           ;;
  85         ccc*)
  86           wl='-Wl,'
  87           ;;
  88         xl* | bgxl* | bgf* | mpixl*)
  89           wl='-Wl,'
  90           ;;
  91         como)
  92           wl='-lopt='
  93           ;;
  94         *)
  95           case `$CC -V 2>&1 | sed 5q` in
  96             *Sun\ F* | *Sun*Fortran*)
  97               wl=
  98               ;;
  99             *Sun\ C*)
 100               wl='-Wl,'
 101               ;;
 102           esac
 103           ;;
 104       esac
 105       ;;
 106     newsos6)
 107       ;;
 108     *nto* | *qnx*)
 109       ;;
 110     osf3* | osf4* | osf5*)
 111       wl='-Wl,'
 112       ;;
 113     rdos*)
 114       ;;
 115     solaris*)
 116       case $cc_basename in
 117         f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
 118           wl='-Qoption ld '
 119           ;;
 120         *)
 121           wl='-Wl,'
 122           ;;
 123       esac
 124       ;;
 125     sunos4*)
 126       wl='-Qoption ld '
 127       ;;
 128     sysv4 | sysv4.2uw2* | sysv4.3*)
 129       wl='-Wl,'
 130       ;;
 131     sysv4*MP*)
 132       ;;
 133     sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
 134       wl='-Wl,'
 135       ;;
 136     unicos*)
 137       wl='-Wl,'
 138       ;;
 139     uts4*)
 140       ;;
 141   esac
 142 fi
 143
 144 # Code taken from libtool.m4's _LT_LINKER_SHLIBS.
 145
 146 hardcode_libdir_flag_spec=
 147 hardcode_libdir_separator=
 148 hardcode_direct=no
 149 hardcode_minus_L=no
 150
 151 case "$host_os" in
 152   cygwin* | mingw* | pw32* | cegcc*)
 153     # FIXME: the MSVC++ port hasn't been tested in a loooong time
 154     # When not using gcc, we currently assume that we are using
 155     # Microsoft Visual C++.
 156     if test "$GCC" != yes; then
 157       with_gnu_ld=no
 158     fi
 159     ;;
 160   interix*)
 161     # we just hope/assume this is gcc and not c89 (= MSVC++)
 162     with_gnu_ld=yes
 163     ;;
 164   openbsd*)
 165     with_gnu_ld=no
 166     ;;
 167 esac
 168
 169 ld_shlibs=yes
 170 if test "$with_gnu_ld" = yes; then
 171   # Set some defaults for GNU ld with shared library support. These
 172   # are reset later if shared libraries are not supported. Putting them
 173   # here allows them to be overridden if necessary.
 174   # Unlike libtool, we use -rpath here, not --rpath, since the documented
 175   # option of GNU ld is called -rpath, not --rpath.
 176   hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 177   case "$host_os" in
 178     aix[3-9]*)
 179       # On AIX/PPC, the GNU linker is very broken
 180       if test "$host_cpu" != ia64; then
 181         ld_shlibs=no
 182       fi
 183       ;;
 184     amigaos*)
 185       case "$host_cpu" in
 186         powerpc)
 187           ;;
 188         m68k)
 189           hardcode_libdir_flag_spec='-L$libdir'
 190           hardcode_minus_L=yes
 191           ;;
 192       esac
 193       ;;
 194     beos*)
 195       if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
 196         :
 197       else
 198         ld_shlibs=no
 199       fi
 200       ;;
 201     cygwin* | mingw* | pw32* | cegcc*)
 202       # hardcode_libdir_flag_spec is actually meaningless, as there is
 203       # no search path for DLLs.
 204       hardcode_libdir_flag_spec='-L$libdir'
 205       if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
 206         :
 207       else
 208         ld_shlibs=no
 209       fi
 210       ;;
 211     haiku*)
 212       ;;
 213     interix[3-9]*)
 214       hardcode_direct=no
 215       hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 216       ;;
 217     gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
 218       if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
 219         :
 220       else
 221         ld_shlibs=no
 222       fi
 223       ;;
 224     netbsd*)
 225       ;;
 226     solaris*)
 227       if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
 228         ld_shlibs=no
 229       elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
 230         :
 231       else
 232         ld_shlibs=no
 233       fi
 234       ;;
 235     sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
 236       case `$LD -v 2>&1` in
 237         *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
 238           ld_shlibs=no
 239           ;;
 240         *)
 241           if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
 242             hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-rpath,$libdir`'
 243           else
 244             ld_shlibs=no
 245           fi
 246           ;;
 247       esac
 248       ;;
 249     sunos4*)
 250       hardcode_direct=yes
 251       ;;
 252     *)
 253       if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
 254         :
 255       else
 256         ld_shlibs=no
 257       fi
 258       ;;
 259   esac
 260   if test "$ld_shlibs" = no; then
 261     hardcode_libdir_flag_spec=
 262   fi
 263 else
 264   case "$host_os" in
 265     aix3*)
 266       # Note: this linker hardcodes the directories in LIBPATH if there
 267       # are no directories specified by -L.
 268       hardcode_minus_L=yes
 269       if test "$GCC" = yes; then
 270         # Neither direct hardcoding nor static linking is supported with a
 271         # broken collect2.
 272         hardcode_direct=unsupported
 273       fi
 274       ;;
 275     aix[4-9]*)
 276       if test "$host_cpu" = ia64; then
 277         # On IA64, the linker does run time linking by default, so we don't
 278         # have to do anything special.
 279         aix_use_runtimelinking=no
 280       else
 281         aix_use_runtimelinking=no
 282         # Test if we are trying to use run time linking or normal
 283         # AIX style linking. If -brtl is somewhere in LDFLAGS, we
 284         # need to do runtime linking.
 285         case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
 286           for ld_flag in $LDFLAGS; do
 287             if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
 288               aix_use_runtimelinking=yes
 289               break
 290             fi
 291           done
 292           ;;
 293         esac
 294       fi
 295       hardcode_direct=yes
 296       hardcode_libdir_separator=':'
 297       if test "$GCC" = yes; then
 298         case $host_os in aix4.[012]|aix4.[012].*)
 299           collect2name=`${CC} -print-prog-name=collect2`
 300           if test -f "$collect2name" && \
 301             strings "$collect2name" | grep resolve_lib_name >/dev/null
 302           then
 303             # We have reworked collect2
 304             :
 305           else
 306             # We have old collect2
 307             hardcode_direct=unsupported
 308             hardcode_minus_L=yes
 309             hardcode_libdir_flag_spec='-L$libdir'
 310             hardcode_libdir_separator=
 311           fi
 312           ;;
 313         esac
 314       fi
 315       # Begin _LT_AC_SYS_LIBPATH_AIX.
 316       echo 'int main () { return 0; }' > conftest.c
 317       ${CC} ${LDFLAGS} conftest.c -o conftest
 318       aix_libpath=`dump -H conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
 319 }'`
 320       if test -z "$aix_libpath"; then
 321         aix_libpath=`dump -HX64 conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }
 322 }'`
 323       fi
 324       if test -z "$aix_libpath"; then
 325         aix_libpath="/usr/lib:/lib"
 326       fi
 327       rm -f conftest.c conftest
 328       # End _LT_AC_SYS_LIBPATH_AIX.
 329       if test "$aix_use_runtimelinking" = yes; then
 330         hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
 331       else
 332         if test "$host_cpu" = ia64; then
 333           hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
 334         else
 335           hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
 336         fi
 337       fi
 338       ;;
 339     amigaos*)
 340       case "$host_cpu" in
 341         powerpc)
 342           ;;
 343         m68k)
 344           hardcode_libdir_flag_spec='-L$libdir'
 345           hardcode_minus_L=yes
 346           ;;
 347       esac
 348       ;;
 349     bsdi[45]*)
 350       ;;
 351     cygwin* | mingw* | pw32* | cegcc*)
 352       # When not using gcc, we currently assume that we are using
 353       # Microsoft Visual C++.
 354       # hardcode_libdir_flag_spec is actually meaningless, as there is
 355       # no search path for DLLs.
 356       hardcode_libdir_flag_spec=' '
 357       libext=lib
 358       ;;
 359     darwin* | rhapsody*)
 360       hardcode_direct=no
 361       if { case $cc_basename in ifort*) true;; *) test "$GCC" = yes;; esac; }; then
 362         :
 363       else
 364         ld_shlibs=no
 365       fi
 366       ;;
 367     dgux*)
 368       hardcode_libdir_flag_spec='-L$libdir'
 369       ;;
 370     freebsd2.[01]*)
 371       hardcode_direct=yes
 372       hardcode_minus_L=yes
 373       ;;
 374     freebsd* | dragonfly*)
 375       hardcode_libdir_flag_spec='-R$libdir'
 376       hardcode_direct=yes
 377       ;;
 378     hpux9*)
 379       hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 380       hardcode_libdir_separator=:
 381       hardcode_direct=yes
 382       # hardcode_minus_L: Not really in the search PATH,
 383       # but as the default location of the library.
 384       hardcode_minus_L=yes
 385       ;;
 386     hpux10*)
 387       if test "$with_gnu_ld" = no; then
 388         hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 389         hardcode_libdir_separator=:
 390         hardcode_direct=yes
 391         # hardcode_minus_L: Not really in the search PATH,
 392         # but as the default location of the library.
 393         hardcode_minus_L=yes
 394       fi
 395       ;;
 396     hpux11*)
 397       if test "$with_gnu_ld" = no; then
 398         hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
 399         hardcode_libdir_separator=:
 400         case $host_cpu in
 401           hppa*64*|ia64*)
 402             hardcode_direct=no
 403             ;;
 404           *)
 405             hardcode_direct=yes
 406             # hardcode_minus_L: Not really in the search PATH,
 407             # but as the default location of the library.
 408             hardcode_minus_L=yes
 409             ;;
 410         esac
 411       fi
 412       ;;
 413     irix5* | irix6* | nonstopux*)
 414       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 415       hardcode_libdir_separator=:
 416       ;;
 417     netbsd*)
 418       hardcode_libdir_flag_spec='-R$libdir'
 419       hardcode_direct=yes
 420       ;;
 421     newsos6)
 422       hardcode_direct=yes
 423       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 424       hardcode_libdir_separator=:
 425       ;;
 426     *nto* | *qnx*)
 427       ;;
 428     openbsd*)
 429       if test -f /usr/libexec/ld.so; then
 430         hardcode_direct=yes
 431         if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
 432           hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 433         else
 434           case "$host_os" in
 435             openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
 436               hardcode_libdir_flag_spec='-R$libdir'
 437               ;;
 438             *)
 439               hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
 440               ;;
 441           esac
 442         fi
 443       else
 444         ld_shlibs=no
 445       fi
 446       ;;
 447     os2*)
 448       hardcode_libdir_flag_spec='-L$libdir'
 449       hardcode_minus_L=yes
 450       ;;
 451     osf3*)
 452       hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 453       hardcode_libdir_separator=:
 454       ;;
 455     osf4* | osf5*)
 456       if test "$GCC" = yes; then
 457         hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
 458       else
 459         # Both cc and cxx compiler support -rpath directly
 460         hardcode_libdir_flag_spec='-rpath $libdir'
 461       fi
 462       hardcode_libdir_separator=:
 463       ;;
 464     solaris*)
 465       hardcode_libdir_flag_spec='-R$libdir'
 466       ;;
 467     sunos4*)
 468       hardcode_libdir_flag_spec='-L$libdir'
 469       hardcode_direct=yes
 470       hardcode_minus_L=yes
 471       ;;
 472     sysv4)
 473       case $host_vendor in
 474         sni)
 475           hardcode_direct=yes # is this really true???
 476           ;;
 477         siemens)
 478           hardcode_direct=no
 479           ;;
 480         motorola)
 481           hardcode_direct=no #Motorola manual says yes, but my tests say they lie
 482           ;;
 483       esac
 484       ;;
 485     sysv4.3*)
 486       ;;
 487     sysv4*MP*)
 488       if test -d /usr/nec; then
 489         ld_shlibs=yes
 490       fi
 491       ;;
 492     sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
 493       ;;
 494     sysv5* | sco3.2v5* | sco5v6*)
 495       hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-R,$libdir`'
 496       hardcode_libdir_separator=':'
 497       ;;
 498     uts4*)
 499       hardcode_libdir_flag_spec='-L$libdir'
 500       ;;
 501     *)
 502       ld_shlibs=no
 503       ;;
 504   esac
 505 fi
 506
 507 # Check dynamic linker characteristics
 508 # Code taken from libtool.m4's _LT_SYS_DYNAMIC_LINKER.
 509 # Unlike libtool.m4, here we don't care about _all_ names of the library, but
 510 # only about the one the linker finds when passed -lNAME. This is the last
 511 # element of library_names_spec in libtool.m4, or possibly two of them if the
 512 # linker has special search rules.
 513 library_names_spec=      # the last element of library_names_spec in libtool.m4
 514 libname_spec='lib$name'
 515 case "$host_os" in
 516   aix3*)
 517     library_names_spec='$libname.a'
 518     ;;
 519   aix[4-9]*)
 520     library_names_spec='$libname$shrext'
 521     ;;
 522   amigaos*)
 523     case "$host_cpu" in
 524       powerpc*)
 525         library_names_spec='$libname$shrext' ;;
 526       m68k)
 527         library_names_spec='$libname.a' ;;
 528     esac
 529     ;;
 530   beos*)
 531     library_names_spec='$libname$shrext'
 532     ;;
 533   bsdi[45]*)
 534     library_names_spec='$libname$shrext'
 535     ;;
 536   cygwin* | mingw* | pw32* | cegcc*)
 537     shrext=.dll
 538     library_names_spec='$libname.dll.a $libname.lib'
 539     ;;
 540   darwin* | rhapsody*)
 541     shrext=.dylib
 542     library_names_spec='$libname$shrext'
 543     ;;
 544   dgux*)
 545     library_names_spec='$libname$shrext'
 546     ;;
 547   freebsd[23].*)
 548     library_names_spec='$libname$shrext$versuffix'
 549     ;;
 550   freebsd* | dragonfly*)
 551     library_names_spec='$libname$shrext'
 552     ;;
 553   gnu*)
 554     library_names_spec='$libname$shrext'
 555     ;;
 556   haiku*)
 557     library_names_spec='$libname$shrext'
 558     ;;
 559   hpux9* | hpux10* | hpux11*)
 560     case $host_cpu in
 561       ia64*)
 562         shrext=.so
 563         ;;
 564       hppa*64*)
 565         shrext=.sl
 566         ;;
 567       *)
 568         shrext=.sl
 569         ;;
 570     esac
 571     library_names_spec='$libname$shrext'
 572     ;;
 573   interix[3-9]*)
 574     library_names_spec='$libname$shrext'
 575     ;;
 576   irix5* | irix6* | nonstopux*)
 577     library_names_spec='$libname$shrext'
 578     case "$host_os" in
 579       irix5* | nonstopux*)
 580         libsuff= shlibsuff=
 581         ;;
 582       *)
 583         case $LD in
 584           *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= ;;
 585           *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 ;;
 586           *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 ;;
 587           *) libsuff= shlibsuff= ;;
 588         esac
 589         ;;
 590     esac
 591     ;;
 592   linux*oldld* | linux*aout* | linux*coff*)
 593     ;;
 594   linux* | k*bsd*-gnu | kopensolaris*-gnu)
 595     library_names_spec='$libname$shrext'
 596     ;;
 597   knetbsd*-gnu)
 598     library_names_spec='$libname$shrext'
 599     ;;
 600   netbsd*)
 601     library_names_spec='$libname$shrext'
 602     ;;
 603   newsos6)
 604     library_names_spec='$libname$shrext'
 605     ;;
 606   *nto* | *qnx*)
 607     library_names_spec='$libname$shrext'
 608     ;;
 609   openbsd*)
 610     library_names_spec='$libname$shrext$versuffix'
 611     ;;
 612   os2*)
 613     libname_spec='$name'
 614     shrext=.dll
 615     library_names_spec='$libname.a'
 616     ;;
 617   osf3* | osf4* | osf5*)
 618     library_names_spec='$libname$shrext'
 619     ;;
 620   rdos*)
 621     ;;
 622   solaris*)
 623     library_names_spec='$libname$shrext'
 624     ;;
 625   sunos4*)
 626     library_names_spec='$libname$shrext$versuffix'
 627     ;;
 628   sysv4 | sysv4.3*)
 629     library_names_spec='$libname$shrext'
 630     ;;
 631   sysv4*MP*)
 632     library_names_spec='$libname$shrext'
 633     ;;
 634   sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
 635     library_names_spec='$libname$shrext'
 636     ;;
 637   tpf*)
 638     library_names_spec='$libname$shrext'
 639     ;;
 640   uts4*)
 641     library_names_spec='$libname$shrext'
 642     ;;
 643 esac
 644
 645 sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
 646 escaped_wl=`echo "X$wl" | sed -e 's/^X//' -e "$sed_quote_subst"`
 647 shlibext=`echo "$shrext" | sed -e 's,^\.,,'`
 648 escaped_libname_spec=`echo "X$libname_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
 649 escaped_library_names_spec=`echo "X$library_names_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
 650 escaped_hardcode_libdir_flag_spec=`echo "X$hardcode_libdir_flag_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
 651
 652 LC_ALL=C sed -e 's/^\([a-zA-Z0-9_]*\)=/acl_cv_\1=/' <<EOF
 653
 654 # How to pass a linker flag through the compiler.
 655 wl="$escaped_wl"
 656
 657 # Static library suffix (normally "a").
 658 libext="$libext"
 659
 660 # Shared library suffix (normally "so").
 661 shlibext="$shlibext"
 662
 663 # Format of library name prefix.
 664 libname_spec="$escaped_libname_spec"
 665
 666 # Library names that the linker finds when passed -lNAME.
 667 library_names_spec="$escaped_library_names_spec"
 668
 669 # Flag to hardcode \$libdir into a binary during linking.
 670 # This must work even if \$libdir does not exist.
 671 hardcode_libdir_flag_spec="$escaped_hardcode_libdir_flag_spec"
 672
 673 # Whether we need a single -rpath flag with a separated argument.
 674 hardcode_libdir_separator="$hardcode_libdir_separator"
 675
 676 # Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
 677 # resulting binary.
 678 hardcode_direct="$hardcode_direct"
 679
 680 # Set to yes if using the -LDIR flag during linking hardcodes DIR into the
 681 # resulting binary.
 682 hardcode_minus_L="$hardcode_minus_L"
 683
 684 EOF