diff --git a/configure.py b/configure.py
index 0b6f67f68cc..dd93d56e552 100755
--- a/configure.py
+++ b/configure.py
@@ -703,7 +703,7 @@ def get_version_helper(cc, regexp):
   if match:
     return match.group(2)
   else:
-    return '0'
+    return '0.0'
 
 def get_nasm_version(asm):
   try:
@@ -714,7 +714,7 @@ def get_nasm_version(asm):
     warn('''No acceptable ASM compiler found!
          Please make sure you have installed NASM from https://www.nasm.us
          and refer BUILDING.md.''')
-    return '0'
+    return '0.0'
 
   match = re.match(r"NASM version ([2-9]\.[0-9][0-9]+)",
                    to_utf8(proc.communicate()[0]))
@@ -722,7 +722,7 @@ def get_nasm_version(asm):
   if match:
     return match.group(1)
   else:
-    return '0'
+    return '0.0'
 
 def get_llvm_version(cc):
   return get_version_helper(
@@ -755,7 +755,7 @@ def get_gas_version(cc):
     return match.group(1)
   else:
     warn('Could not recognize `gas`: ' + gas_ret)
-    return '0'
+    return '0.0'
 
 # Note: Apple clang self-reports as clang 4.2.0 and gcc 4.2.1.  It passes
 # the version check more by accident than anything else but a more rigorous
@@ -766,7 +766,7 @@ def check_compiler(o):
     if not options.openssl_no_asm and options.dest_cpu in ('x86', 'x64'):
       nasm_version = get_nasm_version('nasm')
       o['variables']['nasm_version'] = nasm_version
-      if nasm_version == 0:
+      if nasm_version == '0.0':
         o['variables']['openssl_no_asm'] = 1
     return
 
@@ -785,7 +785,7 @@ def check_compiler(o):
     # to a version that is not completely ancient.
     warn('C compiler too old, need gcc 4.2 or clang 3.2 (CC=%s)' % CC)
 
-  o['variables']['llvm_version'] = get_llvm_version(CC) if is_clang else 0
+  o['variables']['llvm_version'] = get_llvm_version(CC) if is_clang else '0.0'
 
   # Need xcode_version or gas_version when openssl asm files are compiled.
   if options.without_ssl or options.openssl_no_asm or options.shared_openssl:
diff --git a/deps/openssl/openssl.gyp b/deps/openssl/openssl.gyp
index 60f6ee03a7a..0ca75156117 100644
--- a/deps/openssl/openssl.gyp
+++ b/deps/openssl/openssl.gyp
@@ -1,8 +1,8 @@
 {
   'variables': {
-    'gas_version%': 0,
-    'llvm_version%': 0,
-    'nasm_version%': 0,
+    'gas_version%': '0.0',
+    'llvm_version%': '0.0',
+    'nasm_version%': '0.0',
   },
   'targets': [
     {
diff --git a/deps/openssl/openssl_common.gypi b/deps/openssl/openssl_common.gypi
index c4b95c20aea..67640a6325e 100644
--- a/deps/openssl/openssl_common.gypi
+++ b/deps/openssl/openssl_common.gypi
@@ -64,7 +64,7 @@
         'TERMIOS',
       ],
       'conditions': [
-        [ 'llvm_version==0', {
+        [ 'llvm_version=="0.0"', {
           'cflags': ['-Wno-old-style-declaration',],
         }],
       ],
diff --git a/node.gyp b/node.gyp
index ced6fbc954c..79969a4c834 100644
--- a/node.gyp
+++ b/node.gyp
@@ -290,7 +290,7 @@
           '-Wl,-bnoerrmsg',
         ],
       }],
-      ['(OS=="linux" or OS=="mac") and llvm_version!=0', {
+      ['OS in ("linux", "mac") and llvm_version != "0.0"', {
         'libraries': ['-latomic'],
       }],
     ],