[android] Completly move path logic to gyp config.

build/standalone.gypi

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 15 matching lines @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # Definitions to be used when building stand-alone V8 binaries.
 
 {
   # We need to include toolchain.gypi here for third-party sources that don't
   # directly include it themselves.
   'includes': ['toolchain.gypi'],
   'variables': {
     'component%': 'static_library',
-    'clang_dir%': 'third_party/llvm-build/Release+Asserts',
     'clang_xcode%': 0,
     # Track where uninitialized memory originates from. From fastest to
     # slowest: 0 - no tracking, 1 - track only the initial allocation site, 2
     # - track the chain of stores leading from allocation site to use site.
     'msan_track_origins%': 2,
     'visibility%': 'hidden',
     'v8_enable_backtrace%': 0,
     'v8_enable_i18n_support%': 1,
     'v8_deprecation_warnings': 1,
     # TODO(jochen): Turn this on.
@@ skipping 31 matching lines @@
       'tsan%': 0,
       # Enable coverage gathering instrumentation in sanitizer tools. This flag
       # also controls coverage granularity (1 for function-level, 2 for
       # block-level, 3 for edge-level).
       'sanitizer_coverage%': 0,
       # Use libc++ (buildtools/third_party/libc++ and
       # buildtools/third_party/libc++abi) instead of stdlibc++ as standard
       # library. This is intended to be used for instrumented builds.
       'use_custom_libcxx%': 0,
 
+      'clang_dir%': 'third_party/llvm-build/Release+Asserts',
+
       # goma settings.
       # 1 to use goma.
       # If no gomadir is set, it uses the default gomadir.
       'use_goma%': 0,
       'gomadir%': '',
       'conditions': [
         # Set default gomadir.
         ['OS=="win"', {
           'gomadir': 'c:\\goma\\goma-win',
         }, {
           'gomadir': '<!(/bin/echo -n ${HOME}/goma)',
         }],
+        ['host_arch!="ppc" and host_arch!="ppc64" and host_arch!="ppc64le"', {
+          'host_clang%': '1',
+        }, {
+          'host_clang%': '0',
+        }],
       ],
     },
+    'clang_dir%': '<(clang_dir)',
     'host_arch%': '<(host_arch)',
+    'host_clang%': '<(host_clang)',
     'target_arch%': '<(target_arch)',
     'v8_target_arch%': '<(v8_target_arch)',
     'werror%': '-Werror',
     'use_goma%': '<(use_goma)',
     'gomadir%': '<(gomadir)',
     'asan%': '<(asan)',
     'lsan%': '<(lsan)',
     'msan%': '<(msan)',
     'tsan%': '<(tsan)',
     'sanitizer_coverage%': '<(sanitizer_coverage)',
@@ skipping 60 matching lines @@
         'v8_enable_gdbjit%': 1,
       }, {
         'v8_enable_gdbjit%': 0,
       }],
       ['(OS=="linux" or OS=="mac") and (target_arch=="ia32" or target_arch=="x64") and \
         (v8_target_arch!="x87" and v8_target_arch!="x32")', {
         'clang%': 1,
       }, {
         'clang%': 0,
       }],
-      ['host_arch!="ppc" and host_arch!="ppc64" and host_arch!="ppc64le"', {
-        'host_clang%': '1',
-      }, {
-        'host_clang%': '0',
-      }],
       ['asan==1 or lsan==1 or msan==1 or tsan==1', {
         'clang%': 1,
         'use_allocator%': 'none',
       }],
       ['asan==1 and OS=="linux"', {
         'use_custom_libcxx%': 1,
       }],
       ['tsan==1', {
         'use_custom_libcxx%': 1,
       }],
@@ skipping 37 matching lines @@
             }],
             ['target_arch == "mipsel"', {
               'android_toolchain%': '<(android_ndk_root)/toolchains/mipsel-linux-android-4.9/prebuilt/<(host_os)-<(android_host_arch)/bin',
             }],
             ['target_arch == "mips64el"', {
               'android_toolchain%': '<(android_ndk_root)/toolchains/mips64el-linux-android-4.9/prebuilt/<(host_os)-<(android_host_arch)/bin',
             }],
           ],
         },
 
+        # Copy conditionally-set variables out one scope.
+        'android_toolchain%': '<(android_toolchain)',
+
         'conditions': [
           ['android_ndk_root==""', {
             'variables': {
               'android_sysroot': '<(android_toolchain)/sysroot/',
               'android_stlport': '<(android_toolchain)/sources/cxx-stl/stlport/',
             },
             'android_include': '<(android_sysroot)/usr/include',
             'conditions': [
               ['target_arch=="x64"', {
                 'android_lib': '<(android_sysroot)/usr/lib64',
@@ skipping 15 matching lines @@
               }, {
                 'android_lib': '<(android_sysroot)/usr/lib',
               }],
             ],
             'android_stlport_include': '<(android_stlport)/stlport',
             'android_stlport_libs': '<(android_stlport)/libs',
           }],
         ],
         'android_stlport_library': 'stlport_static',
       }],  # OS=="android"
+      ['host_clang==1', {
+        'host_cc': '../<(clang_dir)/bin/clang',
+        'host_cxx': '../<(clang_dir)/bin/clang++',
+      }, {
+        'host_cc': '<!(which gcc)',
+        'host_cxx': '<!(which g++)',
+      }],
     ],
     # Default ARM variable settings.
     'arm_version%': 'default',
     'arm_fpu%': 'vfpv3',
     'arm_float_abi%': 'default',
     'arm_thumb': 'default',
 
     # Default MIPS variable settings.
     'mips_arch_variant%': 'r2',
     # Possible values fp32, fp64, fpxx.
@@ skipping 515 matching lines @@
                 '-lrt',  # librt is built into Bionic.
                 # Not supported by Android toolchain.
                 # Where do these come from?  Can't find references in
                 # any Chromium gyp or gypi file.  Maybe they come from
                 # gyp itself?
                 '-lpthread', '-lnss3', '-lnssutil3', '-lsmime3', '-lplds4', '-lplc4', '-lnspr4',
               ],
               'libraries': [
                 '-l<(android_stlport_library)',
                 # Manually link the libgcc.a that the cross compiler uses.
-                '<!($CC -print-libgcc-file-name)',
+                '<!(<(android_toolchain)/*-gcc -print-libgcc-file-name)',
                 '-lc',
                 '-ldl',
                 '-lstdc++',
                 '-lm',
             ],
             'conditions': [
               ['target_arch == "arm"', {
                 'ldflags': [
                   # Enable identical code folding to reduce size.
                   '-Wl,--icf=safe',
@@ skipping 104 matching lines @@
             'ldflags!': [
               '-Wl,-z,noexecstack',
               '-Wl,--gc-sections',
               '-Wl,-O1',
               '-Wl,--as-needed',
             ],
           }],
         ],  # target_conditions
       },  # target_defaults
     }],  # OS=="android"
+    ['OS=="android" and clang==0', {
+      # Hardcode the compiler names in the Makefile so that
+      # it won't depend on the environment at make time.
+      'make_global_settings': [
+        ['CC', '<!(/bin/echo -n <(android_toolchain)/*-gcc)'],
+        ['CXX', '<!(/bin/echo -n <(android_toolchain)/*-g++)'],
+        ['CC.host', '<(host_cc)'],
+        ['CXX.host', '<(host_cxx)'],
+      ],
+    }],
     ['clang!=1 and host_clang==1 and target_arch!="ia32" and target_arch!="x64"', {
       'make_global_settings': [
         ['CC.host', '../<(clang_dir)/bin/clang'],
         ['CXX.host', '../<(clang_dir)/bin/clang++'],
       ],
     }],
     ['clang==0 and host_clang==1 and target_arch!="ia32" and target_arch!="x64"', {
       'target_conditions': [
         ['_toolset=="host"', {
           'cflags_cc': [ '-std=gnu++11', ],
@@ skipping 42 matching lines @@
     ['use_goma==1 and ("<(GENERATOR)"=="ninja" or clang==1)', {
       'make_global_settings': [
        ['CC_wrapper', '<(gomadir)/gomacc'],
        ['CXX_wrapper', '<(gomadir)/gomacc'],
        ['CC.host_wrapper', '<(gomadir)/gomacc'],
        ['CXX.host_wrapper', '<(gomadir)/gomacc'],
       ],
     }],
   ],
 }