GYP changes to get sql and sqlite building on iOS.

third_party/sqlite/sqlite.gyp

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'use_system_sqlite%': 0,
     'required_sqlite_version': '3.6.1',
   },
   'target_defaults': {
@@ skipping 16 matching lines @@
         [ 'chromeos==1' , {
             'defines': [
                 # Despite obvious warnings about not using this flag
                 # in deployment, we are turning off sync in ChromeOS
                 # and relying on the underlying journaling filesystem
                 # to do error recovery properly.  It's much faster.
                 'SQLITE_NO_SYNC',
                 ],
           },
         ],
-        ['OS=="linux" and not use_system_sqlite', {
-          'link_settings': {
-            'libraries': [
-              '-ldl',
-            ],
-          },
-        }],
         ['OS == "android"', {
           'defines': [
             'SQLITE_TEMP_STORE=3',
           ],
         }],
-        ['os_posix == 1 and OS != "mac" and use_system_sqlite', {
+        ['use_system_sqlite', {
           'type': 'none',
           'direct_dependent_settings': {
-            'cflags': [
-              # This next command produces no output but it it will fail (and
-              # cause GYP to fail) if we don't have a recent enough version of
-              # sqlite.
-              '<!@(pkg-config --atleast-version=<(required_sqlite_version) sqlite3)',
-
-              '<!@(pkg-config --cflags sqlite3)',
-            ],
             'defines': [
               'USE_SYSTEM_SQLITE',
             ],
           },
-          'link_settings': {
-            'ldflags': [
-              '<!@(pkg-config --libs-only-L --libs-only-other sqlite3)',
-            ],
-            'libraries': [
-              '<!@(pkg-config --libs-only-l sqlite3)',
-            ],
-          },
-        }, { # else: os_posix == 1 or OS == "mac" or ! use_system_sqlite
+
+          'conditions': [
+            ['OS == "ios"', {
+              'link_settings': {
+                'libraries': [
+                  '$(SDKROOT)/usr/lib/libsqlite3.dylib',
+                ],
+              },
+            }],
+            ['os_posix == 1 and OS != "mac" and OS != "ios"', {
+              'direct_dependent_settings': {
+                'cflags': [
+                  # This next command produces no output but it it will fail
+                  # (and cause GYP to fail) if we don't have a recent enough
+                  # version of sqlite.
+                  '<!@(pkg-config --atleast-version=<(required_sqlite_version) sqlite3)',
+
+                  '<!@(pkg-config --cflags sqlite3)',
+                ],
+              },
+              'link_settings': {
+                'ldflags': [
+                  '<!@(pkg-config --libs-only-L --libs-only-other sqlite3)',
+                ],
+                'libraries': [
+                  '<!@(pkg-config --libs-only-l sqlite3)',
+                ],
+              },
+            }],
+          ],
+        }, { # !use_system_sqlite
           'product_name': 'sqlite3',
           'type': 'static_library',
           'sources': [
             'amalgamation/sqlite3.h',
             'amalgamation/sqlite3.c',
             # fts2.c currently has a lot of conflicts when added to
             # the amalgamation.  It is probably not worth fixing that.
             'src/ext/fts2/fts2.c',
             'src/ext/fts2/fts2.h',
             'src/ext/fts2/fts2_hash.c',
@@ skipping 24 matching lines @@
           'direct_dependent_settings': {
             'include_dirs': [
               '.',
               '../..',
             ],
           },
           'msvs_disabled_warnings': [
             4018, 4244,
           ],
           'conditions': [
+            ['OS=="linux"', {
+              'link_settings': {
+                'libraries': [
+                  '-ldl',
+                ],
+              },
+            }],
             ['os_posix == 1 and OS != "mac"', {
               'cflags': [
                 # SQLite doesn't believe in compiler warnings,
                 # preferring testing.
                 #   http://www.sqlite.org/faq.html#q17
                 '-Wno-int-to-pointer-cast',
                 '-Wno-pointer-to-int-cast',
               ],
             }],
             ['clang==1', {
               'xcode_settings': {
                 'WARNING_CFLAGS': [
                   # sqlite does `if (*a++ && *b++);` in a non-buggy way.
                   '-Wno-empty-body',
                   # sqlite has some `unsigned < 0` checks.
                   '-Wno-tautological-compare',
                 ],
               },
               'cflags': [
                 '-Wno-empty-body',
                 '-Wno-tautological-compare',
               ],
             }],
           ],
         }],
       ],
     },
   ],
   'conditions': [
-    ['os_posix == 1 and OS != "mac" and not use_system_sqlite', {
+    ['os_posix == 1 and OS != "mac" and OS != "ios" and not use_system_sqlite', {
       'targets': [
         {
           'target_name': 'sqlite_shell',
           'type': 'executable',
           'dependencies': [
             '../icu/icu.gyp:icuuc',
             'sqlite',
           ],
           'sources': [
             'src/src/shell.c',
             'src/src/shell_icu_linux.c',
           ],
           'link_settings': {
             'link_languages': ['c++'],
           },
         },
       ],
     },]
   ],
 }