build: fix library version and compile flags on Android

Compiling a library with -fPIE won't do, and on Android libraries
are not versioned.

Author: gcampax

common.gypi

@@ -156,8 +156,8 @@
             'ldflags': [ '-Wl,-bbigtoc' ],
           }],
           ['OS == "android"', {
-            'cflags': [ '-fPIE' ],
-            'ldflags': [ '-fPIE', '-pie' ]
+            'cflags': [ '-fPIC' ],
+            'ldflags': [ '-fPIC' ]
           }],
         ],
         'msvs_settings': {
@@ -216,8 +216,8 @@
             ],
           },],
           ['OS == "android"', {
-            'cflags': [ '-fPIE' ],
-            'ldflags': [ '-fPIE', '-pie' ]
+            'cflags': [ '-fPIC' ],
+            'ldflags': [ '-fPIC' ]
           }],
         ],
         'msvs_settings': {

configure.py

@@ -1103,14 +1103,17 @@ def configure_node(o):
   o['variables']['node_shared'] = b(options.shared)
   node_module_version = getmoduleversion.get_version()
 
-  if sys.platform == 'darwin':
+  if options.dest_os == 'android':
+    shlib_suffix = 'so'
+  elif sys.platform == 'darwin':
     shlib_suffix = '%s.dylib'
   elif sys.platform.startswith('aix'):
     shlib_suffix = '%s.a'
   else:
     shlib_suffix = 'so.%s'
+  if '%s' in shlib_suffix:
+    shlib_suffix %= node_module_version
 
-  shlib_suffix %= node_module_version
   o['variables']['node_module_version'] = int(node_module_version)
   o['variables']['shlib_suffix'] = shlib_suffix