diff --git a/include/gmock/gmock-matchers.h b/include/gmock/gmock-matchers.h
index f6e877d2..9c457730 100644
--- a/include/gmock/gmock-matchers.h
+++ b/include/gmock/gmock-matchers.h
@@ -1117,8 +1117,6 @@ bool MatchAndExplain(const EndsWithMatcher<StringType>& impl, T& s,
   return impl.Matches(s);
 }
 
-#if GMOCK_HAS_REGEX
-
 // Implements polymorphic matchers MatchesRegex(regex) and
 // ContainsRegex(regex), which can be used as a Matcher<T> as long as
 // T can be converted to a string.
@@ -1165,8 +1163,6 @@ bool MatchAndExplain(const MatchesRegexMatcher& impl, T& s,
   return impl.Matches(s);
 }
 
-#endif  // GMOCK_HAS_REGEX
-
 // Implements a matcher that compares the two fields of a 2-tuple
 // using one of the ==, <=, <, etc, operators.  The two fields being
 // compared don't have to have the same type.
@@ -2718,8 +2714,6 @@ inline PolymorphicMatcher<internal::EndsWithMatcher<internal::string> >
       suffix));
 }
 
-#ifdef GMOCK_HAS_REGEX
-
 // Matches a string that fully matches regular expression 'regex'.
 // The matcher takes ownership of 'regex'.
 inline PolymorphicMatcher<internal::MatchesRegexMatcher> MatchesRegex(
@@ -2742,8 +2736,6 @@ inline PolymorphicMatcher<internal::MatchesRegexMatcher> ContainsRegex(
   return ContainsRegex(new internal::RE(regex));
 }
 
-#endif  // GMOCK_HAS_REGEX
-
 #if GTEST_HAS_GLOBAL_WSTRING || GTEST_HAS_STD_WSTRING
 // Wide string matchers.
 
diff --git a/include/gmock/internal/gmock-port.h b/include/gmock/internal/gmock-port.h
index 27b67a5c..30115f23 100644
--- a/include/gmock/internal/gmock-port.h
+++ b/include/gmock/internal/gmock-port.h
@@ -52,26 +52,8 @@
 
 #if GTEST_OS_LINUX
 
-// On some platforms, <regex.h> needs someone to define size_t, and
-// won't compile otherwise.  We can #include it here as we already
-// included <stdlib.h>, which is guaranteed to define size_t through
-// <stddef.h>.
-#include <regex.h>  // NOLINT
-
-// Defines this iff Google Mock uses the enhanced POSIX regular
-// expression syntax.  This is public as it affects how a user uses
-// regular expression matchers.
-#define GMOCK_USES_POSIX_RE 1
-
 #endif  // GTEST_OS_LINUX
 
-#if defined(GMOCK_USES_PCRE) || defined(GMOCK_USES_POSIX_RE)
-// Defines this iff regular expression matchers are supported.  This
-// is public as it tells a user whether he can use regular expression
-// matchers.
-#define GMOCK_HAS_REGEX 1
-#endif  // defined(GMOCK_USES_PCRE) || defined(GMOCK_USES_POSIX_RE)
-
 namespace testing {
 namespace internal {
 
diff --git a/test/gmock-matchers_test.cc b/test/gmock-matchers_test.cc
index e10b7275..555cc228 100644
--- a/test/gmock-matchers_test.cc
+++ b/test/gmock-matchers_test.cc
@@ -126,11 +126,9 @@ using testing::internal::linked_ptr;
 using testing::internal::scoped_ptr;
 using testing::internal::string;
 
-#ifdef GMOCK_HAS_REGEX
 using testing::ContainsRegex;
 using testing::MatchesRegex;
 using testing::internal::RE;
-#endif  // GMOCK_HAS_REGEX
 
 // For testing ExplainMatchResultTo().
 class GreaterThanMatcher : public MatcherInterface<int> {
@@ -1249,8 +1247,6 @@ TEST(EndsWithTest, CanDescribeSelf) {
   EXPECT_EQ("ends with \"Hi\"", Describe(m));
 }
 
-#ifdef GMOCK_HAS_REGEX
-
 // Tests MatchesRegex().
 
 TEST(MatchesRegexTest, MatchesStringMatchingGivenRegex) {
@@ -1269,8 +1265,8 @@ TEST(MatchesRegexTest, CanDescribeSelf) {
   Matcher<const std::string> m1 = MatchesRegex(string("Hi.*"));
   EXPECT_EQ("matches regular expression \"Hi.*\"", Describe(m1));
 
-  Matcher<const char*> m2 = MatchesRegex(new RE("[a-z].*"));
-  EXPECT_EQ("matches regular expression \"[a-z].*\"", Describe(m2));
+  Matcher<const char*> m2 = MatchesRegex(new RE("a.*"));
+  EXPECT_EQ("matches regular expression \"a.*\"", Describe(m2));
 }
 
 // Tests ContainsRegex().
@@ -1291,10 +1287,9 @@ TEST(ContainsRegexTest, CanDescribeSelf) {
   Matcher<const std::string> m1 = ContainsRegex("Hi.*");
   EXPECT_EQ("contains regular expression \"Hi.*\"", Describe(m1));
 
-  Matcher<const char*> m2 = ContainsRegex(new RE("[a-z].*"));
-  EXPECT_EQ("contains regular expression \"[a-z].*\"", Describe(m2));
+  Matcher<const char*> m2 = ContainsRegex(new RE("a.*"));
+  EXPECT_EQ("contains regular expression \"a.*\"", Describe(m2));
 }
-#endif  // GMOCK_HAS_REGEX
 
 // Tests for wide strings.
 #if GTEST_HAS_STD_WSTRING
diff --git a/test/gmock-spec-builders_test.cc b/test/gmock-spec-builders_test.cc
index c1e77381..3a7b4189 100644
--- a/test/gmock-spec-builders_test.cc
+++ b/test/gmock-spec-builders_test.cc
@@ -68,6 +68,7 @@ using testing::AtMost;
 using testing::Between;
 using testing::Cardinality;
 using testing::CardinalityInterface;
+using testing::ContainsRegex;
 using testing::Const;
 using testing::DoAll;
 using testing::DoDefault;
@@ -978,8 +979,6 @@ TEST(UnexpectedCallTest, UnmatchedArguments) {
   b.DoB(1);
 }
 
-#ifdef GMOCK_HAS_REGEX
-
 // Tests that Google Mock explains that an expectation with
 // unsatisfied pre-requisites doesn't match the call.
 TEST(UnexpectedCallTest, UnsatisifiedPrerequisites) {
@@ -1010,31 +1009,33 @@ TEST(UnexpectedCallTest, UnsatisifiedPrerequisites) {
 
   // Verifies that the failure message contains the two unsatisfied
   // pre-requisites but not the satisfied one.
-  const char* const pattern =
-#if GMOCK_USES_PCRE
+#if GTEST_USES_PCRE
+  EXPECT_THAT(r.message(), ContainsRegex(
       // PCRE has trouble using (.|\n) to match any character, but
       // supports the (?s) prefix for using . to match any character.
       "(?s)the following immediate pre-requisites are not satisfied:\n"
       ".*: pre-requisite #0\n"
-      ".*: pre-requisite #1";
-#else
+      ".*: pre-requisite #1"));
+#elif GTEST_USES_POSIX_RE
+  EXPECT_THAT(r.message(), ContainsRegex(
       // POSIX RE doesn't understand the (?s) prefix, but has no trouble
       // with (.|\n).
       "the following immediate pre-requisites are not satisfied:\n"
       "(.|\n)*: pre-requisite #0\n"
-      "(.|\n)*: pre-requisite #1";
-#endif  // GMOCK_USES_PCRE
+      "(.|\n)*: pre-requisite #1"));
+#else
+  // We can only use Google Test's own simple regex.
+  EXPECT_THAT(r.message(), ContainsRegex(
+      "the following immediate pre-requisites are not satisfied:"));
+  EXPECT_THAT(r.message(), ContainsRegex(": pre-requisite #0"));
+  EXPECT_THAT(r.message(), ContainsRegex(": pre-requisite #1"));
+#endif  // GTEST_USES_PCRE
 
-  EXPECT_TRUE(
-      ::testing::internal::RE::PartialMatch(r.message(), pattern))
-              << " where the message is " << r.message();
   b.DoB(1);
   b.DoB(3);
   b.DoB(4);
 }
 
-#endif  // GMOCK_HAS_REGEX
-
 TEST(UndefinedReturnValueTest, ReturnValueIsMandatory) {
   MockA a;
   // TODO(wan@google.com): We should really verify the output message,
diff --git a/test/gmock_link_test.h b/test/gmock_link_test.h
index d9635907..aa9aab3a 100644
--- a/test/gmock_link_test.h
+++ b/test/gmock_link_test.h
@@ -185,10 +185,8 @@ using testing::SetErrnoAndReturn;
 using testing::Throw;
 #endif
 
-#if GMOCK_HAS_REGEX
 using testing::ContainsRegex;
 using testing::MatchesRegex;
-#endif
 
 class Interface {
  public:
@@ -547,7 +545,6 @@ TEST(LinkTest, TestMatchersFloatingPoint) {
       .WillByDefault(Return());
 }
 
-#if GMOCK_HAS_REGEX
 // Tests the linkage of the ContainsRegex matcher.
 TEST(LinkTest, TestMatcherContainsRegex) {
   Mock mock;
@@ -561,7 +558,6 @@ TEST(LinkTest, TestMatcherMatchesRegex) {
 
   ON_CALL(mock, VoidFromString(MatchesRegex(".*"))).WillByDefault(Return());
 }
-#endif  // GMOCK_HAS_REGEX
 
 // Tests the linkage of the StartsWith, EndsWith, and HasSubstr matchers.
 TEST(LinkTest, TestMatchersSubstrings) {