libspatialite: Use non-amalgamated version

The amalgamated version of SpatiaLite, which includes its own copy of SQLite,
is depreciated and will be discontinued in the near future:

  https://groups.google.com/d/msg/spatialite-users/ZQcEx30p1W8/mi5Gvzlht7wJ

1 files changed, 10 insertions, 3 deletions

diff --git a/Library/Formula/libspatialite.rb b/Library/Formula/libspatialite.rb
index e1b177d8e..fd1e71640 100644
--- a/Library/Formula/libspatialite.rb
+++ b/Library/Formula/libspatialite.rb
@@ -6,8 +6,8 @@ end
 
 class Libspatialite < Formula
   homepage 'https://www.gaia-gis.it/fossil/libspatialite/index'
-  url 'http://www.gaia-gis.it/gaia-sins/libspatialite-sources/libspatialite-amalgamation-3.0.1.tar.gz'
-  md5 'df7f0f714c2de1dc2791ddef6e8eaba5'
+  url 'http://www.gaia-gis.it/gaia-sins/libspatialite-sources/libspatialite-3.0.1.tar.gz'
+  md5 '450d1a0d9da1bd9f770b7db3f2509f69'
 
   def options
     [['--without-freexl', 'Build without support for reading Excel files']]
@@ -15,6 +15,10 @@ class Libspatialite < Formula
 
   depends_on 'proj'
   depends_on 'geos'
+  # Needs SQLite > 3.7.3 which rules out system SQLite on Snow Leopard and
+  # below. Also needs dynamic extension support which rules out system SQLite
+  # on Lion. Finally, RTree index support is required as well.
+  depends_on 'sqlite'
 
   depends_on 'freexl' unless without_freexl?
 
@@ -22,10 +26,13 @@ class Libspatialite < Formula
     # O2 and O3 leads to corrupt/invalid rtree indexes
     # http://groups.google.com/group/spatialite-users/browse_thread/thread/8e1cfa79f2d02a00#
     ENV.Os
+    # Ensure Homebrew's libsqlite is found before the system version.
+    ENV.append 'LDFLAGS', "-L#{HOMEBREW_PREFIX}/lib"
+
     args = %W[
       --disable-dependency-tracking
       --prefix=#{prefix}
-      --target=macosx
+      --with-sysroot=#{HOMEBREW_PREFIX}
     ]
     args << '--enable-freexl=no' if without_freexl?