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path: root/Library/Formula/postgis.rb
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require 'formula'

class Postgis < Formula
  homepage 'http://postgis.net'
  url 'http://download.osgeo.org/postgis/source/postgis-2.0.3.tar.gz'
  sha1 '825c1718cf2603fa0f1c2de802989dff7239f9bc'

  head 'http://svn.osgeo.org/postgis/trunk/'

  option 'with-gui', 'Build shp2pgsql-gui in addition to command line tools'

  depends_on :automake
  depends_on :libtool

  depends_on 'gpp' => :build
  depends_on 'postgresql'
  depends_on 'proj'
  depends_on 'geos'

  depends_on 'gtk+' if build.include? 'with-gui'

  # For GeoJSON and raster handling
  depends_on 'json-c'
  depends_on 'gdal'

  # Force GPP to be used when pre-processing SQL files. See:
  # http://trac.osgeo.org/postgis/ticket/1694
  # Fix linking aganist json-c, upstream in:
  # https://github.com/postgis/postgis/commit/1c988618c9448dcdc43bc8ffe4ef8ff1d4dae838
  def patches; DATA end

  def install
    # Follow the PostgreSQL linked keg back to the active Postgres installation
    # as it is common for people to avoid upgrading Postgres.
    postgres_realpath = Formula.factory('postgresql').opt_prefix.realpath

    ENV.deparallelize

    args = [
      "--disable-dependency-tracking",
      # Can't use --prefix, PostGIS disrespects it and flat-out refuses to
      # accept it with 2.0.
      "--with-projdir=#{HOMEBREW_PREFIX}",
      "--with-jsondir=#{Formula.factory('json-c').opt_prefix}",
      # This is against Homebrew guidelines, but we have to do it as the
      # PostGIS plugin libraries can only be properly inserted into Homebrew's
      # Postgresql keg.
      "--with-pgconfig=#{postgres_realpath}/bin/pg_config",
      # Unfortunately, NLS support causes all kinds of headaches because
      # PostGIS gets all of it's compiler flags from the PGXS makefiles. This
      # makes it nigh impossible to tell the buildsystem where our keg-only
      # gettext installations are.
      "--disable-nls"
    ]
    args << '--with-gui' if build.include? 'with-gui'

    system './autogen.sh'
    system './configure', *args
    system 'make'

    # PostGIS includes the PGXS makefiles and so will install __everything__
    # into the Postgres keg instead of the PostGIS keg. Unfortunately, some
    # things have to be inside the Postgres keg in order to be function. So, we
    # install everything to a staging directory and manually move the pieces
    # into the appropriate prefixes.    
    mkdir 'stage'
    system 'make', 'install', "DESTDIR=#{buildpath}/stage"

    # Install PostGIS plugin libraries into the Postgres keg so that they can
    # be loaded and so PostGIS databases will continue to function even if
    # PostGIS is removed.
    (postgres_realpath/'lib').install Dir['stage/**/*.so']

    # Install extension scripts to the Postgres keg.
    # `CREATE EXTENSION postgis;` won't work if these are located elsewhere.
    (postgres_realpath/'share/postgresql/extension').install Dir['stage/**/extension/*']

    bin.install Dir['stage/**/bin/*']
    lib.install Dir['stage/**/lib/*']
    include.install Dir['stage/**/include/*']

    # Stand-alone SQL files will be installed the share folder
    (share/'postgis').install Dir['stage/**/contrib/postgis-2.0/*']

    # Extension scripts
    bin.install %w[
      utils/create_undef.pl
      utils/postgis_proc_upgrade.pl
      utils/postgis_restore.pl
      utils/profile_intersects.pl
      utils/test_estimation.pl
      utils/test_geography_estimation.pl
      utils/test_geography_joinestimation.pl
      utils/test_joinestimation.pl
    ]

    man1.install Dir['doc/**/*.1']
  end

  def caveats;
    pg = Formula.factory('postgresql').opt_prefix
    <<-EOS.undent
      To create a spatially-enabled database, see the documentation:
        http://postgis.refractions.net/documentation/manual-2.0/postgis_installation.html#create_new_db_extensions
      and to upgrade your existing spatial databases, see here:
        http://postgis.refractions.net/documentation/manual-2.0/postgis_installation.html#upgrading

      PostGIS SQL scripts installed to:
        #{HOMEBREW_PREFIX}/share/postgis
      PostGIS plugin libraries installed to:
        #{pg}/lib
      PostGIS extension modules installed to:
        #{pg}/share/postgresql/extension
      EOS
  end
end

__END__
Force usage of GPP as the SQL pre-processor as Clang chokes and fix json-c link error

diff --git a/configure.ac b/configure.ac
index 68d9240..8514041 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,17 +31,8 @@ AC_SUBST([ANT])
 dnl
 dnl SQL Preprocessor
 dnl
-AC_PATH_PROG([CPPBIN], [cpp], [])
-if test "x$CPPBIN" != "x"; then
-  SQLPP="${CPPBIN} -traditional-cpp -P"
-else
-  AC_PATH_PROG([GPP], [gpp_], [])
-  if test "x$GPP" != "x"; then
-    SQLPP="${GPP} -C -s \'" dnl Use better string support
-  else
-    SQLPP="${CPP} -traditional-cpp"
-  fi
-fi
+AC_PATH_PROG([GPP], [gpp], [])
+SQLPP="${GPP} -C -s \'" dnl Use better string support
 AC_SUBST([SQLPP])
 
 dnl
@@ -740,7 +731,9 @@ CPPFLAGS="$CPPFLAGS_SAVE"
 dnl Ensure we can link against libjson
 LIBS_SAVE="$LIBS"
 LIBS="$JSON_LDFLAGS"
-AC_CHECK_LIB([json], [json_object_get], [HAVE_JSON=yes], [], [])
+AC_CHECK_LIB([json-c], [json_object_get], [HAVE_JSON=yes; JSON_LDFLAGS="-ljson-c"], [
+  AC_CHECK_LIB([json], [json_object_get], [HAVE_JSON=yes; JSON_LDFLAGS="-ljson"], [], [])
+], [])
 LIBS="$LIBS_SAVE"

 if test "$HAVE_JSON" = "yes"; then