diff --git a/src/dcfg.c b/src/dcfg.c
index 6859826..56a59f7 100644
--- a/src/dcfg.c
+++ b/src/dcfg.c
@@ -22,15 +22,21 @@
 
 #include <dcfg.h>
 
+#ifndef DCFG_UTF8_SUPPORT
+#	define DCFG_UTF8_SUPPORT 1
+#endif
+
 #include <inttypes.h>
 #include <stdio.h>
 
 #include "meta.h"
 
-#include "vendor/utf8proc.h"
+#if DCFG_UTF8_SUPPORT
+#	include "vendor/utf8proc.h"
+#endif
 #include "vendor/vec.h"
 
-#ifdef DCFG_POSIX_SUPPORT
+#if DCFG_POSIX_SUPPORT
 #	ifdef __sun
 // FIXME: Fix this stupid shit!
 #		error "realpath() is dumb and stupid on sun. sorry not sorry."
@@ -43,7 +49,7 @@
 #	define _POSIX_C_SOURCE 0L
 #endif
 
-#ifdef DCFG_PTHREAD_SUPPORT
+#if DCFG_PTHREAD_SUPPORT
 #	ifdef _POSIX_C_SOURCE
 #		undef _POSIX_C_SOURCE
 #	endif
@@ -380,7 +386,7 @@ struct dcfg_Instance {
 
 static void *alloc(size_t size) { return calloc(1, size); }
 
-#ifdef DCFG_POSIX_SUPPORT
+#if DCFG_POSIX_SUPPORT
 static char *realpath_(char const *s) { return realpath(s, NULL); }
 void *fopen_(char const *f, char const *a) { return fopen(f, a); }
 int fseek_(void *f, size_t p, int o) { return fseek(f, p, o); }
@@ -416,7 +422,7 @@ dcfg_Instance *dcfg_make_instance(dcfg_InstanceCreateInfo const *create_info)
 	if (!instance->free) {
 		instance->free = free;
 	}
-#ifdef DCFG_POSIX_SUPPORT
+#if DCFG_POSIX_SUPPORT
 	if (!instance->realpath) {
 		instance->realpath = realpath_;
 	}
@@ -544,6 +550,7 @@ typedef struct {
 
 static inline int32_t decode_cp(StringView src, int pos, int *len)
 {
+#if DCFG_UTF8_SUPPORT
 	if (pos >= (int)src.size) {
 		*len = 0;
 		return -1;
@@ -560,24 +567,46 @@ static inline int32_t decode_cp(StringView src, int pos, int *len)
 
 	*len = bytes;
 	return cp;
+#else
+	if (pos >= (int)src.size) {
+		*len = 0;
+		return -1;
+	}
+	*len = 1;
+	return (int32_t)src.data[pos];
+#endif
 }
 
 static inline bool is_space_cp(int32_t cp)
 {
+#if DCFG_UTF8_SUPPORT
 	return (cp <= 0x7F && (cp == ' ' || cp == '\t' || cp == '\r' || cp == '\n'))
 	    || utf8proc_category(cp) == UTF8PROC_CATEGORY_ZS;
+#else
+	if (cp <= 0x7F)
+		return (cp == ' ' || cp == '\t' || cp == '\r' || cp == '\n');
+	return false;
+#endif
 }
 static inline bool is_alpha_cp(int32_t cp)
 {
+#if DCFG_UTF8_SUPPORT
 	utf8proc_category_t cat = utf8proc_category(cp);
 	return (cp <= 0x7F && isalpha(cp))
 	    || (cat >= UTF8PROC_CATEGORY_LU && cat <= UTF8PROC_CATEGORY_LO)
 	    || (cat == UTF8PROC_CATEGORY_SO);
+#else
+	return (cp <= 0x7F && isalpha(cp));
+#endif
 }
 static inline bool is_digit_cp(int32_t cp)
 {
+#if DCFG_UTF8_SUPPORT
 	return (cp <= 0x7F && isdigit(cp))
 	    || utf8proc_category(cp) == UTF8PROC_CATEGORY_ND;
+#else
+	return (cp <= 0x7F && isdigit(cp));
+#endif
 }
 static inline bool is_alnum_cp(int32_t cp)
 {
@@ -2085,5 +2114,7 @@ bool dcfg_Value_evaluate_toplevel(dcfg_Value *top, dcfg_Value **out_value,
 }
 
 // Libraries
-#include "vendor/utf8proc.c"
+#if DCFG_UTF8_SUPPORT
+#	include "vendor/utf8proc.c"
+#endif
 #include "vendor/vec.c"