[Android] For shared library build, use shared versions of stlport and gnu_stl

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 2686 matching lines @@
         'chrome_symbols_id%': '',
         'conditions': [
           # Use shared stlport library when system one used.
           # Figure this out early since it needs symbols from libgcc.a, so it
           # has to be before that in the set of libraries.
           ['use_system_stlport==1', {
             'android_stlport_library': 'stlport',
           }, {
             'android_stlport_library': 'stlport_static',
           }],
+          ['component=="shared_library" and use_system_stlport==0', {

[nilesh, 2012/11/06 18:37:04]

I think this should go as a condition in the rule above. That way it will not
depend on the order of these rules.

+            'android_stlport_library': 'stlport_shared',
+          }],
         ],
 
         # Placing this variable here prevents from forking libvpx, used
         # by remoting.  Remoting is off, so it needn't built,
         # so forking it's deps seems like overkill.
         # But this variable need defined to properly run gyp.
         # A proper solution is to have an OS==android conditional
         # in third_party/libvpx/libvpx.gyp to define it.
         'libvpx_path': 'lib/linux/arm',
       },
@@ skipping 72 matching lines @@
             'libraries': [
               '-l<(android_stlport_library)',
               # Manually link the libgcc.a that the cross compiler uses.
               '<!(<(android_toolchain)/*-gcc -print-libgcc-file-name)',
               '-lc',
               '-ldl',
               '-lstdc++',
               '-lm',
             ],
             'conditions': [
+              ['component=="shared_library"', {
+                'libraries': [
+                  '-lgnustl_shared',
+                ],
+              }],
               ['android_upstream_bringup==1', {
                 'defines': ['ANDROID_UPSTREAM_BRINGUP=1',],
               }],
               ['clang==1', {
                 'cflags': [
                   # Work around incompatibilities between bionic and clang
                   # headers.
                   '-D__compiler_offsetof=__builtin_offsetof',
                   '-Dnan=__builtin_nan',
                 ],
@@ skipping 92 matching lines @@
                   '-I<(android_src)/external/stlport/stlport',
                 ],
               }, { # else: use_system_stlport!=1
                 'cflags': [
                   '-I<(android_ndk_root)/sources/cxx-stl/stlport/stlport',
                 ],
                 'conditions': [
                   ['target_arch=="arm" and armv7==1', {
                     'ldflags': [
                       '-L<(android_ndk_root)/sources/cxx-stl/stlport/libs/armeabi-v7a',
+                      '-L<(android_ndk_root)/sources/cxx-stl/gnu-libstdc++/4.6/libs/armeabi-v7a',
                     ],
                   }],
                   ['target_arch=="arm" and armv7==0', {
                     'ldflags': [
                       '-L<(android_ndk_root)/sources/cxx-stl/stlport/libs/armeabi',
+                      '-L<(android_ndk_root)/sources/cxx-stl/gnu-libstdc++/4.6/libs/armeabi',
                     ],
                   }],
                   ['target_arch=="ia32"', {
                     'ldflags': [
                       '-L<(android_ndk_root)/sources/cxx-stl/stlport/libs/x86',
+                      '-L<(android_ndk_root)/sources/cxx-stl/gnu-libstdc++/4.6/libs/x86',
                     ],
                   }],
                 ],
               }],
               ['target_arch=="ia32"', {
                 # The x86 toolchain currently has problems with stack-protector.
                 'cflags!': [
                   '-fstack-protector',
                 ],
                 'cflags': [
@@ skipping 741 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }