diff --git a/SConstruct b/SConstruct
index f8dde3d0f..959661c00 100644
--- a/SConstruct
+++ b/SConstruct
@@ -856,6 +856,12 @@ help:always wipe certain freed memory
 				poison = True
 		if poison:
 			context.sconf.Define('DXX_HAVE_POISON')
+	@_custom_test
+	def check_strcasecmp_present(self,context):
+		main = '''
+	return !strcasecmp(argv[0], argv[0] + 1) && !strncasecmp(argv[0] + 1, argv[0], 1);
+'''
+		self.Compile(context, text='#include <cstring>', main=main, msg='for strcasecmp', successflags={'CPPDEFINES' : ['DXX_HAVE_STRCASECMP']})
 
 class LazyObjectConstructor:
 	def __get_lazy_object(self,srcname,transform_target):
diff --git a/common/include/strutil.h b/common/include/strutil.h
index 596b1f478..38afe6db7 100644
--- a/common/include/strutil.h
+++ b/common/include/strutil.h
@@ -15,10 +15,19 @@
 #define snprintf macintosh_snprintf
 extern void snprintf(char *out_string, int size, const char * format, ... );
 #endif
+
+#ifdef DXX_HAVE_STRCASECMP
+#define d_stricmp strcasecmp
+static inline int d_strnicmp(const char *s1, const char *s2, size_t n)
+{
+	return strncasecmp(s1, s2, n);
+}
+#else
 __attribute_nonnull()
 extern int d_stricmp( const char *s1, const char *s2 );
 __attribute_nonnull()
 int d_strnicmp(const char *s1, const char *s2, uint_fast32_t n);
+#endif
 extern void d_strlwr( char *s1 );
 extern void d_strupr( char *s1 );
 extern void d_strrev( char *s1 );
diff --git a/common/misc/strutil.cpp b/common/misc/strutil.cpp
index 23937be03..85a9d0e96 100644
--- a/common/misc/strutil.cpp
+++ b/common/misc/strutil.cpp
@@ -56,6 +56,7 @@ void snprintf(char *out_string, int size, char * format, ... )
 
 // string compare without regard to case
 
+#ifndef DXX_HAVE_STRCASECMP
 int d_stricmp( const char *s1, const char *s2 )
 {
 	for (;; ++s1, ++s2)
@@ -82,6 +83,7 @@ int d_strnicmp(const char *s1, const char *s2, uint_fast32_t n)
 	}
 	return 0;
 }
+#endif
 
 void d_strlwr( char *s1 )
 {