config-scripts/cups-sharedlibs.m4

   1 dnl
   2 dnl Shared library support for CUPS.
   3 dnl
   4 dnl Copyright © 2007-2018 by Apple Inc.
   5 dnl Copyright © 1997-2005 by Easy Software Products, all rights reserved.
   6 dnl
   7 dnl Licensed under Apache License v2.0.  See the file "LICENSE" for more
   8 dnl information.
   9 dnl
  10
  11 PICFLAG=1
  12 DSOFLAGS="${DSOFLAGS:=}"
  13
  14 AC_ARG_ENABLE(shared, [  --disable-shared        do not create shared libraries])
  15
  16 cupsbase="cups"
  17 LIBCUPSBASE="lib$cupsbase"
  18 LIBCUPSSTATIC="lib$cupsbase.a"
  19
  20 if test x$enable_shared != xno; then
  21         case "$host_os_name" in
  22                 sunos*)
  23                         LIBCUPS="lib$cupsbase.so.2"
  24                         LIBCUPSIMAGE="libcupsimage.so.2"
  25                         DSO="\$(CC)"
  26                         DSOXX="\$(CXX)"
  27                         DSOFLAGS="$DSOFLAGS -Wl,-h\`basename \$@\` -G \$(OPTIM)"
  28                         ;;
  29                 linux* | gnu* | *bsd*)
  30                         LIBCUPS="lib$cupsbase.so.2"
  31                         LIBCUPSIMAGE="libcupsimage.so.2"
  32                         DSO="\$(CC)"
  33                         DSOXX="\$(CXX)"
  34                         DSOFLAGS="$DSOFLAGS -Wl,-soname,\`basename \$@\` -shared \$(OPTIM)"
  35                         ;;
  36                 darwin*)
  37                         LIBCUPS="lib$cupsbase.2.dylib"
  38                         LIBCUPSIMAGE="libcupsimage.2.dylib"
  39                         DSO="\$(CC)"
  40                         DSOXX="\$(CXX)"
  41                         DSOFLAGS="$DSOFLAGS -dynamiclib -single_module -lc"
  42                         ;;
  43                 *)
  44                         echo "Warning: shared libraries may not be supported.  Trying -shared"
  45                         echo "         option with compiler."
  46                         LIBCUPS="lib$cupsbase.so.2"
  47                         LIBCUPSIMAGE="libcupsimage.so.2"
  48                         DSO="\$(CC)"
  49                         DSOXX="\$(CXX)"
  50                         DSOFLAGS="$DSOFLAGS -Wl,-soname,\`basename \$@\` -shared \$(OPTIM)"
  51                         ;;
  52         esac
  53 else
  54         PICFLAG=0
  55         LIBCUPS="lib$cupsbase.a"
  56         LIBCUPSIMAGE="libcupsimage.a"
  57         DSO=":"
  58         DSOXX=":"
  59 fi
  60
  61 AC_SUBST(DSO)
  62 AC_SUBST(DSOXX)
  63 AC_SUBST(DSOFLAGS)
  64 AC_SUBST(LIBCUPS)
  65 AC_SUBST(LIBCUPSBASE)
  66 AC_SUBST(LIBCUPSIMAGE)
  67 AC_SUBST(LIBCUPSSTATIC)
  68
  69 if test x$enable_shared = xno; then
  70         LINKCUPS="../cups/lib$cupsbase.a"
  71         LINKCUPSIMAGE="../cups/libcupsimage.a"
  72
  73         EXTLINKCUPS="-lcups"
  74         EXTLINKCUPSIMAGE="-lcupsimage"
  75 else
  76         LINKCUPS="-l${cupsbase}"
  77         LINKCUPSIMAGE="-lcupsimage"
  78
  79         EXTLINKCUPS="-lcups"
  80         EXTLINKCUPSIMAGE="-lcupsimage"
  81 fi
  82
  83 AC_SUBST(EXTLINKCUPS)
  84 AC_SUBST(EXTLINKCUPSIMAGE)
  85 AC_SUBST(LINKCUPS)
  86 AC_SUBST(LINKCUPSIMAGE)
  87
  88 dnl Update libraries for DSOs...
  89 EXPORT_LDFLAGS=""
  90
  91 if test "$DSO" != ":"; then
  92         # When using DSOs the image libraries are linked to libcupsimage.so
  93         # rather than to the executables.  This makes things smaller if you
  94         # are using any static libraries, and it also allows us to distribute
  95         # a single DSO rather than a bunch...
  96         DSOLIBS="\$(LIBZ)"
  97         IMGLIBS=""
  98
  99         # Tell the run-time linkers where to find a DSO.  Some platforms
 100         # need this option, even when the library is installed in a
 101         # standard location...
 102         case $host_os_name in
 103                 sunos*)
 104                         # Solaris...
 105                         if test $exec_prefix != /usr; then
 106                                 DSOFLAGS="-R$libdir $DSOFLAGS"
 107                                 LDFLAGS="$LDFLAGS -R$libdir"
 108                                 EXPORT_LDFLAGS="-R$libdir"
 109                         fi
 110                         ;;
 111                 *bsd*)
 112                         # *BSD...
 113                         if test $exec_prefix != /usr; then
 114                                 DSOFLAGS="-Wl,-R$libdir $DSOFLAGS"
 115                                 LDFLAGS="$LDFLAGS -Wl,-R$libdir"
 116                                 EXPORT_LDFLAGS="-Wl,-R$libdir"
 117                         fi
 118                         ;;
 119                 linux* | gnu*)
 120                         # Linux, and HURD...
 121                         if test $exec_prefix != /usr; then
 122                                 DSOFLAGS="-Wl,-rpath,$libdir $DSOFLAGS"
 123                                 LDFLAGS="$LDFLAGS -Wl,-rpath,$libdir"
 124                                 EXPORT_LDFLAGS="-Wl,-rpath,$libdir"
 125                         fi
 126                         ;;
 127         esac
 128 else
 129         DSOLIBS=""
 130         IMGLIBS="\$(LIBZ)"
 131 fi
 132
 133 AC_SUBST(DSOLIBS)
 134 AC_SUBST(IMGLIBS)
 135 AC_SUBST(EXPORT_LDFLAGS)