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 ##UNINSTONLYBEGIN
  53 # Cached value.  Note that this a return code, so 0 means uninstalled!
  54 is_uninstalled_cache=
  55
  56 # Check if this is an uninstalled xapian-config.
  57 is_uninstalled()
  58 {
  59     if [ -z "$is_uninstalled_cache" ]; then
  60         [ -n "$builddir" -a -f "${builddir}Makefile" ]
  61         is_uninstalled_cache=$?
  62     fi
  63     return $is_uninstalled_cache
  64 }
  65
  66 # -I options for compiling against an uninstalled xapian.
  67 set_I_for_uninstalled() {
  68     I=
  69     # version.h is generated by configure, so we also need builddir
  70     # in the include path if it's different to srcdir.
  71     [ "@abs_srcdir@" != "@abs_builddir@" ] && I="-I@abs_builddir@/include "
  72     I="$I-I@abs_srcdir@/include"
  73 }
  74 ##UNINSTONLYEND
  75
  76 need_explicit_dependencies()
  77 {
  78     # For static libraries, we need to explicitly link with dependency_libs
  79     # on all platforms.  For shared libraries, it depends on the platform.
  80
  81     # xapian-config --static means static libraries.
  82     [ no = "$static" ] || return 0 # "true"
  83
  84     # If the .la file hasn't been installed, assume there are shared libraries.
  85     if [ -f "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la" ] ; then
  86         # If "$dlname" is empty, we only have static libraries.
  87         extract_dlname "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la"
  88         [ -n "$dlname" ] || return 0 # "true"
  89     fi
  90
  91     # Vanilla libtool set this to either "yes" or "unknown" and then handles
  92     # both of these the same way, but our configure forces this to "no" on
  93     # platforms where we know that is appropriate.
  94     [ no != "@link_all_deplibs_CXX@" ] || return 1 # "false"
  95
  96     return 0 # "true"
  97 }
  98
  99 # Any extra ldflags needed.
 100 set_F_to_extra_ldflags() {
 101     F=
 102     [ -n "@ldflags@" ] && F="@ldflags@ "
 103 }
 104
 105 # -L option required (if any).
 106 set_L_to_library_path() {
 107     L=
 108     [ /usr/lib != "@libdir@" ] && L="-L@libdir@ "
 109 }
 110
 111 set_I() {
 112     ##UNINSTONLYBEGIN
 113     if is_uninstalled ; then
 114         set_I_for_uninstalled
 115     else
 116     ##UNINSTONLYEND
 117         # Adding -I/usr/include to CXXFLAGS causes problems with certain
 118         # versions of GCC on some platforms where GCC generates "fixed"
 119         # versions of vendor supplied include headers at install time.
 120         # Normally these are used instead of those in /usr/include, but if
 121         # you explicitly pass -I/usr/include you get the non-fixed
 122         # versions.  More recent GCC versions simply ignore -I/usr/include
 123         # but we want to support older versions too.
 124         case "@incdir@" in
 125         /usr/include|/usr/include/c++) I= ;;
 126         *) I="-I@incdir@" ;;
 127         esac
 128     ##UNINSTONLYBEGIN
 129     fi
 130     ##UNINSTONLYEND
 131 }
 132
 133 set_I_swig() {
 134     ##UNINSTONLYBEGIN
 135     if is_uninstalled ; then
 136         set_I_for_uninstalled
 137     else
 138     ##UNINSTONLYEND
 139         I="-I@incdir@"
 140     ##UNINSTONLYBEGIN
 141     fi
 142     ##UNINSTONLYEND
 143 }
 144
 145 # Extract dlname from a libtool .la file.
 146 extract_dlname() {
 147     dlname=
 148     # Need to quote ^ for Solaris /bin/sh.
 149     assignment=`grep '^dlname=' "$1" 2>/dev/null`
 150     eval "$assignment"
 151 }
 152
 153 # Extract dependency_libs recursively from a libtool .la file, converting
 154 # .la references into appropriate -L and -l options.
 155 extract_dependency_libs() {
 156     deps=
 157     # Multiple whitespace (space or tab).
 158     mws='[       ][      ]*'
 159     la='\(/[^ ]*\)\(/lib\)\([^ ]*\).la'
 160     pat='\(.* \)'"$la"'\( .*\)'
 161     extract_dependency_libs_ "$1"
 162     dependency_libs=`echo "$deps"|sed 's/  */ /g;s/^ //;s/ $//'`
 163 }
 164
 165 # Internal helper function for extract_dependency_libs.
 166 extract_dependency_libs_() {
 167     dependency_libs=
 168     # Need to quote ^ for Solaris /bin/sh.
 169     assignment=`grep '^dependency_libs=' "$1" 2>/dev/null`
 170     eval "$assignment"
 171     dependency_libs=`echo " $dependency_libs "|sed "s/$mws/ /g"`
 172     while true ; do
 173         file=`echo "$dependency_libs"|sed "s,$pat"',\2\3\4.la,'`
 174         case $file in
 175         *.la)
 176             # Replace "/path/to/libfoo.la" with "-L/path/to -lfoo".
 177             deps="$deps "`echo "$dependency_libs"|sed "s,$pat"',\1-L\2 -l\4,'`
 178             # Put the trailing part in $1 which is a local variable.
 179             set "`echo "$dependency_libs"|sed "s,$pat"',\5,'`"
 180             # And expand any dependency libs from libfoo.la.
 181             extract_dependency_libs_ "$file"
 182             # Set dependency_libs to the trailing part, ready for the
 183             # next pass of the loop which checks for more .la files.
 184             dependency_libs=$1
 185             ;;
 186         *)
 187             deps=$deps$dependency_libs
 188             break
 189             ;;
 190         esac
 191     done
 192 }
 193
 194 builddir=`echo "$0"|sed 's![^/]*$!!'`
 195 xo_lib_xapian=no
 196 static=no
 197
 198 actions=
 199 while [ 0 != "$#" ] ; do
 200     arg=$1
 201     shift
 202     case $arg in
 203     --help)
 204         echo "$PROG_NAME - $PROG_DESC"
 205         echo
 206         show_usage 0
 207         ;;
 208
 209     --version)
 210         echo "$PROG_NAME - @PACKAGE_STRING@"
 211         exit 0
 212         ;;
 213
 214     --cxxflags|--swigflags|--libs|--ltlibs)
 215         actions="$actions $arg"
 216         ;;
 217
 218     --static)
 219         static=yes
 220         ;;
 221
 222     --from-xo-lib-xapian)
 223         # Top Secret option which allows us to give a more helpful error
 224         # message if we're asked to link with an uninstalled libxapian@LIBRARY_VERSION_SUFFIX@
 225         # and libtool isn't in use.
 226         xo_lib_xapian=yes
 227         ;;
 228
 229     -*)
 230         echo "$0: Unrecognized option: $arg" 1>&2
 231         show_usage 1 1>&2
 232         ;;
 233
 234     *)
 235         show_usage 1 1>&2
 236         ;;
 237     esac
 238 done
 239
 240 for arg in $actions ; do
 241     case $arg in
 242     --cxxflags)
 243         set_I
 244         F=
 245         [ -n "@abi_affecting_cxxflags@" ] && F="@abi_affecting_cxxflags@ "
 246         echo "$I$F"
 247         ;;
 248
 249     --swigflags)
 250         set_I_swig
 251         echo "$I"
 252         ;;
 253
 254     --libs)
 255         ##UNINSTONLYBEGIN
 256         if is_uninstalled ; then
 257             if [ no = "$xo_lib_xapian" ]; then
 258                 echo "$0: Use libtool and '$PROG_NAME --ltlibs'" 1>&2
 259             else
 260                 configure_ac='configure.in (or configure.ac)'
 261                 # If ac_top_srcdir isn't passed to us, we just end up looking
 262                 # in the current directory, which is a sensible fallback.
 263                 if [ -r "${ac_top_srcdir}configure.ac" ]; then
 264                     configure_ac=configure.ac
 265                 elif [ -r "${ac_top_srcdir}configure.in" ]; then
 266                     configure_ac=configure.in
 267                 fi
 268                 echo "$0: Add AC_PROG_LIBTOOL to your $configure_ac" 1>&2
 269             fi
 270             echo "to link with an uninstalled libxapian@LIBRARY_VERSION_SUFFIX@." 1>&2
 271             exit 1
 272         fi
 273         ##UNINSTONLYEND
 274         set_F_to_extra_ldflags
 275         set_L_to_library_path
 276         D=
 277         if need_explicit_dependencies ; then
 278             extract_dependency_libs "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la"
 279             [ -n "$dependency_libs" ] && D=" $dependency_libs"
 280         fi
 281         echo "$F$L-lxapian@LIBRARY_VERSION_SUFFIX@$D"
 282         ;;
 283
 284     --ltlibs)
 285         set_F_to_extra_ldflags
 286         ##UNINSTONLYBEGIN
 287         if is_uninstalled ; then
 288             # Don't check if libxapian@LIBRARY_VERSION_SUFFIX@.la exists yet since we want to allow
 289             # configuring against a xapian-core tree which hasn't been built
 290             # yet (the top level bootstrap script relies on this).
 291             [ ./ != "$builddir" ] && F="$F$builddir"
 292             [ no = "$static" ] || F="-static-libtool-libs $F"
 293             echo "${F}libxapian@LIBRARY_VERSION_SUFFIX@.la"
 294             continue
 295         fi
 296         ##UNINSTONLYEND
 297
 298         # If we need to pull in dependency_libs, we need libxapian@LIBRARY_VERSION_SUFFIX@.la.
 299         # Otherwise just use the appropriate -L and -l options.
 300         # Upstream libtool currently never sets link_all_deplibs_CXX=no.
 301         # Some Linux distros patch libtool to return no, and some have an
 302         # unhelpful policy of not packaging .la files in an attempt to work
 303         # around this.  So avoiding using libtool here gives more consistent
 304         # behaviour.
 305         if need_explicit_dependencies ; then
 306             if [ -f "@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la" ]; then
 307                 echo "${F}@libdir@/libxapian@LIBRARY_VERSION_SUFFIX@.la"
 308                 continue
 309             fi
 310
 311             echo "$0: Can't find libxapian@LIBRARY_VERSION_SUFFIX@.la to link against." 1>&2
 312             exit 1
 313         fi
 314
 315         set_L_to_library_path
 316         echo "$F$L-lxapian@LIBRARY_VERSION_SUFFIX@"
 317         ;;
 318     esac
 319 done
 320 exit 0