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 LIBCUPSIMAGE=""
  19 LIBCUPSSTATIC="lib$cupsbase.a"
  20
  21 if test x$enable_shared != xno; then
  22         case "$host_os_name" in
  23                 sunos*)
  24                         LIBCUPS="lib$cupsbase.so.2"
  25                         if test "x$cupsimagebase" != x; then
  26                                 LIBCUPSIMAGE="lib$cupsimagebase.so.2"
  27                         fi
  28                         DSO="\$(CC)"
  29                         DSOXX="\$(CXX)"
  30                         DSOFLAGS="$DSOFLAGS -Wl,-h\`basename \$@\` -G"
  31                         ;;
  32                 linux* | gnu* | *bsd*)
  33                         LIBCUPS="lib$cupsbase.so.2"
  34                         if test "x$cupsimagebase" != x; then
  35                                 LIBCUPSIMAGE="lib$cupsimagebase.so.2"
  36                         fi
  37                         DSO="\$(CC)"
  38                         DSOXX="\$(CXX)"
  39                         DSOFLAGS="$DSOFLAGS -Wl,-soname,\`basename \$@\` -shared"
  40                         ;;
  41                 darwin*)
  42                         LIBCUPS="lib$cupsbase.2.dylib"
  43                         if test "x$cupsimagebase" != x; then
  44                                 LIBCUPSIMAGE="lib$cupsimagebase.2.dylib"
  45                         fi
  46                         DSO="\$(CC)"
  47                         DSOXX="\$(CXX)"
  48                         DSOFLAGS="$DSOFLAGS -Wl,-no_warn_inits -dynamiclib -single_module -lc"
  49                         ;;
  50                 *)
  51                         echo "Warning: shared libraries may not be supported.  Trying -shared"
  52                         echo "         option with compiler."
  53                         LIBCUPS="lib$cupsbase.so.2"
  54                         if test "x$cupsimagebase" != x; then
  55                                 LIBCUPSIMAGE="lib$cupsimagebase.so.2"
  56                         fi
  57                         DSO="\$(CC)"
  58                         DSOXX="\$(CXX)"
  59                         DSOFLAGS="$DSOFLAGS -Wl,-soname,\`basename \$@\` -shared"
  60                         ;;
  61         esac
  62 else
  63         PICFLAG=0
  64         LIBCUPS="lib$cupsbase.a"
  65         if test "x$cupsimagebase" != x; then
  66                 LIBCUPSIMAGE="lib$cupsimagebase.a"
  67         fi
  68         DSO=":"
  69         DSOXX=":"
  70 fi
  71
  72 AC_SUBST(DSO)
  73 AC_SUBST(DSOXX)
  74 AC_SUBST(DSOFLAGS)
  75 AC_SUBST(LIBCUPS)
  76 AC_SUBST(LIBCUPSBASE)
  77 AC_SUBST(LIBCUPSIMAGE)
  78 AC_SUBST(LIBCUPSSTATIC)
  79
  80 if test x$enable_shared = xno; then
  81         LINKCUPS="../cups/lib$cupsbase.a"
  82         EXTLINKCUPS="-lcups"
  83
  84         if test "x$cupsimagebase" != x; then
  85                 LINKCUPSIMAGE="../cups/lib$cupsimagebase.a"
  86                 EXTLINKCUPSIMAGE="-l$cupsimagebase"
  87         else
  88                 LINKCUPSIMAGE=""
  89                 EXTLINKCUPSIMAGE=""
  90         fi
  91 else
  92         LINKCUPS="-l${cupsbase}"
  93         EXTLINKCUPS="-lcups"
  94
  95         if test "x$cupsimagebase" != x; then
  96                 LINKCUPSIMAGE="-l$cupsimagebase"
  97                 EXTLINKCUPSIMAGE="-l$cupsimagebase"
  98         else
  99                 LINKCUPSIMAGE=""
 100                 EXTLINKCUPSIMAGE=""
 101         fi
 102 fi
 103
 104 AC_SUBST(EXTLINKCUPS)
 105 AC_SUBST(EXTLINKCUPSIMAGE)
 106 AC_SUBST(LINKCUPS)
 107 AC_SUBST(LINKCUPSIMAGE)
 108
 109 dnl Update libraries for DSOs...
 110 EXPORT_LDFLAGS=""
 111
 112 if test "$DSO" != ":"; then
 113         # When using DSOs the image libraries are linked to libcupsimage.so
 114         # rather than to the executables.  This makes things smaller if you
 115         # are using any static libraries, and it also allows us to distribute
 116         # a single DSO rather than a bunch...
 117         DSOLIBS="\$(LIBZ)"
 118         IMGLIBS=""
 119
 120         # Tell the run-time linkers where to find a DSO.  Some platforms
 121         # need this option, even when the library is installed in a
 122         # standard location...
 123         case $host_os_name in
 124                 sunos*)
 125                         # Solaris...
 126                         if test $exec_prefix != /usr; then
 127                                 DSOFLAGS="-R$libdir $DSOFLAGS"
 128                                 LDFLAGS="$LDFLAGS -R$libdir"
 129                                 EXPORT_LDFLAGS="-R$libdir"
 130                         fi
 131                         ;;
 132                 *bsd*)
 133                         # *BSD...
 134                         if test $exec_prefix != /usr; then
 135                                 DSOFLAGS="-Wl,-R$libdir $DSOFLAGS"
 136                                 LDFLAGS="$LDFLAGS -Wl,-R$libdir"
 137                                 EXPORT_LDFLAGS="-Wl,-R$libdir"
 138                         fi
 139                         ;;
 140                 linux* | gnu*)
 141                         # Linux, and HURD...
 142                         if test $exec_prefix != /usr; then
 143                                 DSOFLAGS="-Wl,-rpath,$libdir $DSOFLAGS"
 144                                 LDFLAGS="$LDFLAGS -Wl,-rpath,$libdir"
 145                                 EXPORT_LDFLAGS="-Wl,-rpath,$libdir"
 146                         fi
 147                         ;;
 148         esac
 149 else
 150         DSOLIBS=""
 151         IMGLIBS="\$(LIBZ)"
 152 fi
 153
 154 AC_SUBST(DSOLIBS)
 155 AC_SUBST(IMGLIBS)
 156 AC_SUBST(EXPORT_LDFLAGS)