diff --git a/support/cmake/cxx11.cmake b/support/cmake/cxx11.cmake
index 02795a93..21d12543 100644
--- a/support/cmake/cxx11.cmake
+++ b/support/cmake/cxx11.cmake
@@ -20,7 +20,14 @@ if (FMT_USE_CPP11)
     check_cxx_source_compiles("
       #include <unistd.h>
       int main() {}" FMT_CPP11_UNISTD_H)
-    if (FMT_CPP11_CMATH AND FMT_CPP11_UNISTD_H)
+    # Check if snprintf works with -std=c++11. It may not in MinGW.
+    check_cxx_source_compiles("
+      #include <stdio.h>
+      int main() {
+        char buffer[10];
+        snprintf(buffer, 10, \"foo\");
+      }" FMT_CPP11_SNPRINTF)
+    if (FMT_CPP11_CMATH AND FMT_CPP11_UNISTD_H AND FMT_CPP11_SNPRINTF)
       set(CPP11_FLAG -std=c++11)
     else ()
       check_cxx_compiler_flag(-std=gnu++11 HAVE_STD_GNUPP11_FLAG)
diff --git a/test/gtest/gtest.h b/test/gtest/gtest.h
index 4f3804f7..52d2ed6d 100644
--- a/test/gtest/gtest.h
+++ b/test/gtest/gtest.h
@@ -2823,7 +2823,11 @@ inline int IsATTY(int /* fd */) { return 0; }
 inline int IsATTY(int fd) { return _isatty(fd); }
 #  endif  // GTEST_OS_WINDOWS_MOBILE
 inline int StrCaseCmp(const char* s1, const char* s2) {
-  return _stricmp(s1, s2);
+#  if _EMULATE_GLIBC
+    return strcasecmp(s1, s2);
+#  else
+    return _stricmp(s1, s2);
+#  endif
 }
 inline char* StrDup(const char* src) { return _strdup(src); }
 # endif  // __BORLANDC__