Fix NaCl build for pepper_32

gyp/common_conditions.gypi

Index: gyp/common_conditions.gypi
diff --git a/gyp/common_conditions.gypi b/gyp/common_conditions.gypi
index 48f8e19d033e07e740b03382908699b0657ea517..3fa697e6e29c2d7f7f5825406962ef298383cd65 100644
--- a/gyp/common_conditions.gypi
+++ b/gyp/common_conditions.gypi
@@ -264,6 +264,9 @@
             'defines': [
               'SK_BUILD_FOR_NACL',
             ],
+            'variables': {
+              'nacl_sdk_root': '<!(["echo", "${NACL_SDK_ROOT}"])',
+            },
             'link_settings': {
               'libraries': [
                 '-lppapi',
@@ -271,6 +274,10 @@
                 '-lnosys',
                 '-pthread',
               ],
+              'ldflags': [
+                '-L<(nacl_sdk_root)/lib/newlib_x86_<(skia_arch_width)/Release',
+                '-L<(nacl_sdk_root)/ports/lib/newlib_x86_<(skia_arch_width)/Release',
+              ],
             },
           }, { # skia_os != "nacl"
             'link_settings': {