From 0f3d7e6032052b4a02e04dabdc02104206d1825e Mon Sep 17 00:00:00 2001
From: Nikolai Vavilov <vvnicholas@gmail.com>
Date: Tue, 23 Dec 2014 20:15:46 +0100
Subject: [PATCH] configure: remove compiler detection

The GCC version is no longer relevant since only 4.8 and newer are
supported. It's probably safe to assume clang on mac since V8 does
so too.

PR-URL: https://github.com/iojs/io.js/pull/205
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
---
 common.gypi |  7 +++++--
 configure   | 22 ----------------------
 2 files changed, 5 insertions(+), 24 deletions(-)

diff --git a/common.gypi b/common.gypi
index fabb3751730..fd436a5bce1 100644
--- a/common.gypi
+++ b/common.gypi
@@ -9,8 +9,6 @@
     'library%': 'static_library',     # allow override to 'shared_library' for DLL/.so builds
     'component%': 'static_library',   # NB. these names match with what V8 expects
     'msvs_multi_core_compile': '0',   # we do enable multicore compiles, but not using the V8 way
-    'gcc_version%': 'unknown',
-    'clang%': 0,
     'python%': 'python',
 
     'node_tag%': '',
@@ -38,6 +36,11 @@
         'OBJ_DIR': '<(PRODUCT_DIR)/obj.target',
         'V8_BASE': '<(PRODUCT_DIR)/obj.target/deps/v8/tools/gyp/libv8_base.a',
       }],
+      ['OS=="mac"', {
+        'clang%': 1,
+      }, {
+        'clang%': 0,
+      }],
     ],
   },
 
diff --git a/configure b/configure
index 128aa27348f..f863118d4e6 100755
--- a/configure
+++ b/configure
@@ -398,22 +398,6 @@ def host_arch_win():
   return matchup.get(arch, 'ia32')
 
 
-def compiler_version():
-  try:
-    proc = subprocess.Popen(shlex.split(CC) + ['--version'],
-                            stdout=subprocess.PIPE)
-  except WindowsError:
-    return (0, False)
-
-  is_clang = 'clang' in proc.communicate()[0].split('\n')[0]
-
-  proc = subprocess.Popen(shlex.split(CC) + ['-dumpversion'],
-                          stdout=subprocess.PIPE)
-  version = tuple(map(int, proc.communicate()[0].split('.')))
-
-  return (version, is_clang)
-
-
 def configure_arm(o):
   if options.arm_float_abi:
     arm_float_abi = options.arm_float_abi
@@ -455,12 +439,6 @@ def configure_node(o):
   if target_arch == 'arm':
     configure_arm(o)
 
-  cc_version, is_clang = compiler_version()
-  o['variables']['clang'] = 1 if is_clang else 0
-
-  if not is_clang and cc_version != 0:
-    o['variables']['gcc_version'] = 10 * cc_version[0] + cc_version[1]
-
   if flavor in ('solaris', 'mac', 'linux', 'freebsd'):
     use_dtrace = not options.without_dtrace
     # Don't enable by default on linux and freebsd