diff --git a/cmake/PreseedDOSCache.cmake b/cmake/PreseedDOSCache.cmake
index e35fe25a75..f6f7c301e6 100644
--- a/cmake/PreseedDOSCache.cmake
+++ b/cmake/PreseedDOSCache.cmake
@@ -43,7 +43,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "DOS")
       set(LIBC_HAS_ATOF                                  "1"   CACHE INTERNAL "Have symbol atof")
       set(LIBC_HAS_ATOI                                  "1"   CACHE INTERNAL "Have symbol atoi")
       set(LIBC_HAS_BCOPY                                 "1"   CACHE INTERNAL "Have symbol bcopy")
-      set(LIBC_HAS_CALLOC                                ""    CACHE INTERNAL "Have symbol calloc")
+      set(LIBC_HAS_CALLOC                                "1"   CACHE INTERNAL "Have symbol calloc")
       set(LIBC_HAS_CEIL                                  "1"   CACHE INTERNAL "Have symbol ceil")
       set(LIBC_HAS_CEILF                                 "1"   CACHE INTERNAL "Have symbol ceilf")
       set(LIBC_HAS_COPYSIGN                              "1"   CACHE INTERNAL "Have symbol copysign")
@@ -60,12 +60,12 @@ if(CMAKE_SYSTEM_NAME STREQUAL "DOS")
       set(LIBC_HAS_FMOD                                  "1"   CACHE INTERNAL "Have symbol fmod")
       set(LIBC_HAS_FMODF                                 "1"   CACHE INTERNAL "Have symbol fmodf")
       set(LIBC_HAS_FOPEN64                               ""    CACHE INTERNAL "Have symbol fopen64")
-      set(LIBC_HAS_FREE                                  ""    CACHE INTERNAL "Have symbol free")
+      set(LIBC_HAS_FREE                                  "1"   CACHE INTERNAL "Have symbol free")
       set(LIBC_HAS_FSEEKO                                "1"   CACHE INTERNAL "Have symbol fseeko")
       set(LIBC_HAS_FSEEKO64                              ""    CACHE INTERNAL "Have symbol fseeko64 (broken in DJGPP)")
       set(LIBC_HAS_GETENV                                "1"   CACHE INTERNAL "Have symbol getenv")
       set(LIBC_HAS_ICONV_H                               ""    CACHE INTERNAL "Have include iconv.h")
-      set(LIBC_HAS_INDEX                                  "1"   CACHE INTERNAL "Have symbol index")
+      set(LIBC_HAS_INDEX                                 "1"   CACHE INTERNAL "Have symbol index")
       set(LIBC_HAS_INTTYPES_H                            "1"   CACHE INTERNAL "Have include inttypes.h")
       set(LIBC_HAS_ISINF                                 "1"   CACHE INTERNAL "Have include isinf(double)")
       set(LIBC_ISINF_HANDLES_FLOAT                       "1"   CACHE INTERNAL "Have include isinf(float)")
@@ -94,7 +94,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "DOS")
       set(LIBC_HAS_POW                                   "1"   CACHE INTERNAL "Have symbol pow")
       set(LIBC_HAS_POWF                                  "1"   CACHE INTERNAL "Have symbol powf")
       set(LIBC_HAS_PUTENV                                "1"   CACHE INTERNAL "Have symbol putenv")
-      set(LIBC_HAS_REALLOC                               ""    CACHE INTERNAL "Have symbol realloc")
+      set(LIBC_HAS_REALLOC                               "1"   CACHE INTERNAL "Have symbol realloc")
       set(LIBC_HAS_RINDEX                                "1"   CACHE INTERNAL "Have symbol rindex")
       set(LIBC_HAS_ROUND                                 "1"   CACHE INTERNAL "Have symbol round")
       set(LIBC_HAS_ROUNDF                                "1"   CACHE INTERNAL "Have symbol roundf")
@@ -116,7 +116,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "DOS")
       set(LIBC_HAS_STDLIB_H                              "1"   CACHE INTERNAL "Have include stdlib.h")
       set(LIBC_HAS_STRCASESTR                            ""    CACHE INTERNAL "Have symbol strcasestr")
       set(LIBC_HAS_STRCHR                                "1"   CACHE INTERNAL "Have symbol strchr")
-      set(LIBC_HAS_STRCMP                                 "1"   CACHE INTERNAL "Have symbol strcmp")
+      set(LIBC_HAS_STRCMP                                "1"   CACHE INTERNAL "Have symbol strcmp")
       set(LIBC_HAS_STRINGS_H                             "1"   CACHE INTERNAL "Have include strings.h")
       set(LIBC_HAS_STRING_H                              "1"   CACHE INTERNAL "Have include string.h")
       set(LIBC_HAS_STRLCAT                               "1"   CACHE INTERNAL "Have symbol strlcat")