diff --git a/MagickCore/magick-config.h b/MagickCore/magick-config.h
index 09772a5..9002a55 100644
--- a/MagickCore/magick-config.h
+++ b/MagickCore/magick-config.h
@@ -12,7 +12,9 @@
/* #undef AUTOTRACE_DELEGATE */
/* Define if coders and filters are to be built as modules. */
-/* #undef BUILD_MODULES */
+#ifndef MAGICKCORE_BUILD_MODULES
+#define MAGICKCORE_BUILD_MODULES 1
+#endif
/* Define if you have the bzip2 library */
#ifndef MAGICKCORE_BZLIB_DELEGATE
@@ -531,7 +533,9 @@
#endif
/* Define to 1 if you have a working `mmap' system call. */
-/* #undef HAVE_MMAP_FILEIO */
+#ifndef MAGICKCORE_HAVE_MMAP_FILEIO
+#define MAGICKCORE_HAVE_MMAP_FILEIO 1
+#endif
/* Define to 1 if you have the `munmap' function. */
#ifndef MAGICKCORE_HAVE_MUNMAP
@@ -1107,7 +1111,9 @@
#endif
/* Define to 1 if the system has the type `_Bool'. */
-/* #undef HAVE__BOOL */
+#ifndef MAGICKCORE_HAVE__BOOL
+#define MAGICKCORE_HAVE__BOOL 1
+#endif
/* Define to 1 if you have the `_exit' function. */
#ifndef MAGICKCORE_HAVE__EXIT
@@ -1182,7 +1188,9 @@
#endif
/* Define if using libltdl to support dynamically loadable modules */
-/* #undef LTDL_DELEGATE */
+#ifndef MAGICKCORE_LTDL_DELEGATE
+#define MAGICKCORE_LTDL_DELEGATE 1
+#endif
/* Define if the OS needs help to load dependent libraries for dlopen(). */
/* #undef LTDL_DLOPEN_DEPLIBS */