diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2a91824c8b..e65c149ddf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -241,7 +241,7 @@ endif()
 if(UNIX OR MINGW OR MSYS OR (USE_CLANG AND NOT WINDOWS) OR VITA OR PSP OR PS2 OR N3DS)
   set(OPT_DEF_LIBC ON)
 endif()
-if(WINDOWS OR IOS OR TVOS)
+if(WINDOWS OR DARWIN OR MACOSX OR IOS OR TVOS)
   set(SDL_SYSTEM_ICONV_DEFAULT OFF)
 else()
   set(SDL_SYSTEM_ICONV_DEFAULT ON)
diff --git a/configure b/configure
index 8183ec88c2..2a004fef2c 100755
--- a/configure
+++ b/configure
@@ -18816,7 +18816,7 @@ fi
 
 enable_system_iconv_default=yes
 case "$host" in
-  *-*-cygwin*|*-*-mingw*)
+  *-*-cygwin*|*-*-mingw*|*-*-darwin*|*-ios-*)
     enable_system_iconv_default=no
     ;;
 esac
diff --git a/configure.ac b/configure.ac
index 631ea773e7..a968c4c606 100644
--- a/configure.ac
+++ b/configure.ac
@@ -322,7 +322,7 @@ AC_ARG_ENABLE(libc,
 dnl See whether we are allowed to use system iconv
 enable_system_iconv_default=yes
 case "$host" in
-  *-*-cygwin*|*-*-mingw*)
+  *-*-cygwin*|*-*-mingw*|*-*-darwin*|*-ios-*)
     enable_system_iconv_default=no
     ;;
 esac