xapian-core/xapian-config.in

   1 #!/bin/sh
   2 # @configure_input@
   3 #
   4 # Copyright (C) 2002,2003,2004,2005,2006,2007,2009,2010,2012,2014,2015 Olly Betts
   5 #
   6 # This program is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU General Public License as
   8 # published by the Free Software Foundation; either version 2 of the
   9 # License, or (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  19 # USA
  20
  21 PROG_NAME=xapian-config
  22 PROG_DESC="report information about the installed version of xapian"
  23
  24 # ${prefix} and ${exec_prefix} are used in some @-substitutions, and
  25 # ${prefix} is usually used in the exec_prefix @-substitution.
  26 prefix="@prefix@"
  27 exec_prefix="@exec_prefix@"
  28
  29 # Show usage information and exit with the specified exit status.
  30 show_usage() {
  31     cat <<EOF
  32 Usage: $PROG_NAME OPTION...
  33
  34 Options:
  35   --cxxflags   output all preprocessor and C++ compiler flags
  36   --libs       output all linker flags
  37   --ltlibs     output linker flags for linking using GNU libtool
  38   --static     make other options report values for static linking
  39   --swigflags  output preprocessor flags for use with SWIG
  40   --help       output this help and exit
  41   --version    output version information and exit
  42
  43 Report bugs to <@PACKAGE_BUGREPORT@>.
  44 EOF
  45
  46     exit "$1"
  47 }
  48
  49 # This script requires at least one argument.
  50 [ 0 != "$#" ] || show_usage 1 1>&2
  51
  52 # Cached value.  Note that this a return code, so 0 means uninstalled!
  53 is_uninstalled_cache=
  54
  55 # Check if this is an uninstalled xapian-config.
  56 is_uninstalled()
  57 {
  58     if [ -z "$is_uninstalled_cache" ]; then
  59         [ -n "$builddir" -a -f "${builddir}Makefile" ]
  60         is_uninstalled_cache=$?
  61     fi
  62     return $is_uninstalled_cache
  63 }
  64
  65 need_explicit_dependencies()
  66 {
  67     # For static libraries, we need to explicitly link with dependency_libs
  68     # on all platforms.  For shared libraries, it depends on the platform.
  69
  70     # xapian-config --static means static libraries.
  71     [ no = "$static" ] || return 0 # "true"
  72
  73     # If the .la file hasn't been installed, assume there are shared libraries.
  74     if [ -f "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la" ] ; then
  75         # If "$dlname" is empty, we only have static libraries.
  76         extract_dlname "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la"
  77         [ -n "$dlname" ] || return 0 # "true"
  78     fi
  79
  80     # Vanilla libtool set this to either "yes" or "unknown" and then handles
  81     # both of these the same way, but our configure forces this to "no" on
  82     # platforms where we know that is appropriate.
  83     [ no != "@link_all_deplibs_CXX@" ] || return 1 # "false"
  84
  85     return 0 # "true"
  86 }
  87
  88 # Any extra ldflags needed.
  89 set_F_to_extra_ldflags() {
  90     F=
  91     [ -n "@ldflags@" ] && F="@ldflags@ "
  92 }
  93
  94 # -L option required (if any).
  95 set_L_to_library_path() {
  96     L=
  97     [ /usr/lib != "@libdir@" ] && L="-L@libdir@ "
  98 }
  99
 100 # -I options for compiling against an uninstalled xapian.
 101 set_I_for_uninstalled() {
 102     I=
 103     # version.h is generated by configure, so we also need builddir
 104     # in the include path if it's different to srcdir.
 105     [ "@abs_srcdir@" != "@abs_builddir@" ] && I="-I@abs_builddir@/include "
 106     I="$I-I@abs_srcdir@/include"
 107 }
 108
 109 # Extract dlname from a libtool .la file.
 110 extract_dlname() {
 111     dlname=
 112     # Need to quote ^ for Solaris /bin/sh.
 113     assignment=`grep '^dlname=' "$1" 2>/dev/null`
 114     eval "$assignment"
 115 }
 116
 117 # Extract dependency_libs recursively from a libtool .la file, converting
 118 # .la references into appropriate -L and -l options.
 119 extract_dependency_libs() {
 120     deps=
 121     # Multiple whitespace (space or tab).
 122     mws='[      ][      ]*'
 123     la='\(/[^ ]*\)\(/lib\)\([^ ]*\).la'
 124     pat='\(.* \)'"$la"'\( .*\)'
 125     extract_dependency_libs_ "$1"
 126     dependency_libs=`echo "$deps"|sed 's/  */ /g;s/^ //;s/ $//'`
 127 }
 128
 129 # Internal helper function for extract_dependency_libs.
 130 extract_dependency_libs_() {
 131     dependency_libs=
 132     # Need to quote ^ for Solaris /bin/sh.
 133     assignment=`grep '^dependency_libs=' "$1" 2>/dev/null`
 134     eval "$assignment"
 135     dependency_libs=`echo " $dependency_libs "|sed "s/$mws/ /g"`
 136     while true ; do
 137         file=`echo "$dependency_libs"|sed "s,$pat"',\2\3\4.la,'`
 138         case $file in
 139         *.la)
 140             # Replace "/path/to/libfoo.la" with "-L/path/to -lfoo".
 141             deps="$deps "`echo "$dependency_libs"|sed "s,$pat"',\1-L\2 -l\4,'`
 142             # Put the trailing part in $1 which is a local variable.
 143             set "`echo "$dependency_libs"|sed "s,$pat"',\5,'`"
 144             # And expand any dependency libs from libfoo.la.
 145             extract_dependency_libs_ "$file"
 146             # Set dependency_libs to the trailing part, ready for the
 147             # next pass of the loop which checks for more .la files.
 148             dependency_libs=$1
 149             ;;
 150         *)
 151             deps=$deps$dependency_libs
 152             break
 153             ;;
 154         esac
 155     done
 156 }
 157
 158 builddir=`echo "$0"|sed 's![^/]*$!!'`
 159 xo_lib_xapian=no
 160 static=no
 161
 162 actions=
 163 while [ 0 != "$#" ] ; do
 164     arg=$1
 165     shift
 166     case $arg in
 167     --help)
 168         echo "$PROG_NAME - $PROG_DESC"
 169         echo
 170         show_usage 0
 171         ;;
 172
 173     --version)
 174         echo "$PROG_NAME - @PACKAGE_STRING@"
 175         exit 0
 176         ;;
 177
 178     --cxxflags|--swigflags|--libs|--ltlibs)
 179         actions="$actions $arg"
 180         ;;
 181
 182     --static)
 183         static=yes
 184         ;;
 185
 186     --from-xo-lib-xapian)
 187         # Top Secret option which allows us to give a more helpful error
 188         # message if we're asked to link with an uninstalled libxapian@LIBRARY_VERSION_SUFFIX@
 189         # and libtool isn't in use.
 190         xo_lib_xapian=yes
 191         ;;
 192
 193     -*)
 194         echo "$0: Unrecognized option: $arg" 1>&2
 195         show_usage 1 1>&2
 196         ;;
 197
 198     *)
 199         show_usage 1 1>&2
 200         ;;
 201     esac
 202 done
 203
 204 for arg in $actions ; do
 205     case $arg in
 206     --cxxflags)
 207         if is_uninstalled ; then
 208             set_I_for_uninstalled
 209         else
 210             # Adding -I/usr/include to CXXFLAGS causes problems with certain
 211             # versions of GCC on some platforms where GCC generates "fixed"
 212             # versions of vendor supplied include headers at install time.
 213             # Normally these are used instead of those in /usr/include, but if
 214             # you explicitly pass -I/usr/include you get the non-fixed
 215             # versions.  More recent GCC versions simply ignore -I/usr/include
 216             # but we want to support older versions too.
 217             case "@incdir@" in
 218             /usr/include|/usr/include/c++) I= ;;
 219             *) I="-I@incdir@" ;;
 220             esac
 221         fi
 222         F=
 223         [ -n "@abi_affecting_cxxflags@" ] && F="@abi_affecting_cxxflags@ "
 224         echo "$I$F"
 225         ;;
 226
 227     --swigflags)
 228         if is_uninstalled ; then
 229             set_I_for_uninstalled
 230         else
 231             I="-I@incdir@"
 232         fi
 233         echo "$I"
 234         ;;
 235
 236     --libs)
 237         if is_uninstalled ; then
 238             if [ no = "$xo_lib_xapian" ]; then
 239                 echo "$0: Use libtool and '$PROG_NAME --ltlibs'" 1>&2
 240             else
 241                 configure_ac='configure.in (or configure.ac)'
 242                 # If ac_top_srcdir isn't passed to us, we just end up looking
 243                 # in the current directory, which is a sensible fallback.
 244                 if [ -r "${ac_top_srcdir}configure.ac" ]; then
 245                     configure_ac=configure.ac
 246                 elif [ -r "${ac_top_srcdir}configure.in" ]; then
 247                     configure_ac=configure.in
 248                 fi
 249                 echo "$0: Add AC_PROG_LIBTOOL to your $configure_ac" 1>&2
 250             fi
 251             echo "to link with an uninstalled libxapian@LIBRARY_VERSION_SUFFIX@." 1>&2
 252             exit 1
 253         fi
 254         set_F_to_extra_ldflags
 255         set_L_to_library_path
 256         D=
 257         if need_explicit_dependencies ; then
 258             extract_dependency_libs "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la"
 259             [ -n "$dependency_libs" ] && D=" $dependency_libs"
 260         fi
 261         echo "$F$L-lxapian@LIBRARY_VERSION_SUFFIX@$D"
 262         ;;
 263
 264     --ltlibs)
 265         set_F_to_extra_ldflags
 266         if is_uninstalled ; then
 267             # Don't check if libxapian@LIBRARY_VERSION_SUFFIX@.la exists yet since we want to allow
 268             # configuring against a xapian-core tree which hasn't been built
 269             # yet (the top level bootstrap script relies on this).
 270             [ ./ != "$builddir" ] && F="$F$builddir"
 271             [ no = "$static" ] || F="-static-libtool-libs $F"
 272             echo "${F}libxapian@LIBRARY_VERSION_SUFFIX@.la"
 273             continue
 274         fi
 275
 276         # If we need to pull in dependency_libs, we need libxapian@LIBRARY_VERSION_SUFFIX@.la.
 277         # Otherwise just use the appropriate -L and -l options.
 278         # Upstream libtool currently never sets link_all_deplibs_CXX=no.
 279         # Some Linux distros patch libtool to return no, and some have an
 280         # unhelpful policy of not packaging .la files in an attempt to work
 281         # around this.  So avoiding using libtool here gives more consistent
 282         # behaviour.
 283         if need_explicit_dependencies ; then
 284             if [ -f "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la" ]; then
 285                 echo "${F}@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la"
 286                 continue
 287             fi
 288
 289             echo "$0: Can't find libxapian@LIBRARY_VERSION_SUFFIX@.la to link against." 1>&2
 290             exit 1
 291         fi
 292
 293         set_L_to_library_path
 294         echo "$F$L-lxapian@LIBRARY_VERSION_SUFFIX@"
 295         ;;
 296     esac
 297 done
 298 exit 0