linux: use correct libgcrypt-config paths when cross-compiling

build/linux/system.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': {
     'conditions': [
       ['sysroot!=""', {
         'pkg-config': '<(chroot_cmd) ./pkg-config-wrapper "<(sysroot)" "<(target_arch)"',
+        'libgcrypt-config': '<(chroot_cmd) ./libgcrypt-config-wrapper "<(sysroot)"',
       }, {
-        'pkg-config': 'pkg-config'
+        'pkg-config': 'pkg-config',
+        'libgcrypt-config': 'libgcrypt-config',
       }],
     ],
 
     'linux_link_libgps%': 0,
     'linux_link_libpci%': 0,
     'linux_link_libspeechd%': 0,
     'linux_link_libbrlapi%': 0,
   },
   'conditions': [
     [ 'chromeos==0', {
@@ skipping 707 matching lines @@
         ],
       },
     },
     {
       'target_name': 'libgcrypt',
       'type': 'none',
       'conditions': [
         ['_toolset=="target" and use_cups==1', {
           'direct_dependent_settings': {
             'cflags': [
-              '<!@(libgcrypt-config --cflags)',
+              '<!@(<(libgcrypt-config) --cflags)',
             ],
           },
           'link_settings': {
             'libraries': [
-              '<!@(libgcrypt-config --libs)',
+              '<!@(<(libgcrypt-config) --libs)',
             ],
           },
         }],
       ],
     },
     {
       'target_name': 'libpci',
       'type': 'static_library',
       'cflags': [
         '<!@(<(pkg-config) --cflags libpci)',
@@ skipping 244 matching lines @@
             ],
             'libraries': [
               '<!@(<(pkg-config) --libs-only-l libudev)',
             ],
           },
         }],
       ],
     },
   ],
 }