diff --git a/CMakeLists.txt b/CMakeLists.txt
index 22e23a33c..2ce31aba8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -635,7 +635,6 @@ endif()
 
 if(SDL_ASSEMBLY)
   if(USE_GCC OR USE_CLANG)
-    set(SDL_ASSEMBLY_ROUTINES 1)
     # TODO: Those all seem to be quite GCC specific - needs to be
     # reworked for better compiler support
     set(HAVE_ASSEMBLY TRUE)
@@ -853,7 +852,6 @@ if(SDL_ASSEMBLY)
     set(HAVE_SSE2 TRUE)
     set(HAVE_SSE3 TRUE)
     check_include_file("immintrin.h" HAVE_IMMINTRIN_H)
-    set(SDL_ASSEMBLY_ROUTINES 1)
   endif()
 endif()
 
diff --git a/configure b/configure
index 069b26324..3943176a0 100755
--- a/configure
+++ b/configure
@@ -18246,9 +18246,6 @@ if test x$enable_assembly = xyes; then
     SUMMARY_modules="${SUMMARY_modules} assembly"
 
 
-$as_echo "#define SDL_ASSEMBLY_ROUTINES 1" >>confdefs.h
-
-
     # Make sure that we don't generate floating point code that would
     # cause illegal instruction exceptions on older processors
     case "$host" in
diff --git a/configure.ac b/configure.ac
index 2958d3a4f..87cdcf327 100644
--- a/configure.ac
+++ b/configure.ac
@@ -583,8 +583,6 @@ AC_ARG_ENABLE(assembly,
 if test x$enable_assembly = xyes; then
     SUMMARY_modules="${SUMMARY_modules} assembly"
 
-    AC_DEFINE(SDL_ASSEMBLY_ROUTINES, 1, [ ])
-
     # Make sure that we don't generate floating point code that would
     # cause illegal instruction exceptions on older processors
     case "$host" in
diff --git a/include/SDL_config.h.cmake b/include/SDL_config.h.cmake
index 8445ac2e2..9e058218d 100644
--- a/include/SDL_config.h.cmake
+++ b/include/SDL_config.h.cmake
@@ -498,7 +498,6 @@
 #cmakedefine SDL_LOCALE_DUMMY @SDL_LOCALE_DUMMY@
 
 /* Enable assembly routines */
-#cmakedefine SDL_ASSEMBLY_ROUTINES @SDL_ASSEMBLY_ROUTINES@
 #cmakedefine SDL_ALTIVEC_BLITTERS @SDL_ALTIVEC_BLITTERS@
 #cmakedefine SDL_ARM_SIMD_BLITTERS @SDL_ARM_SIMD_BLITTERS@
 #cmakedefine SDL_ARM_NEON_BLITTERS @SDL_ARM_NEON_BLITTERS@
diff --git a/include/SDL_config.h.in b/include/SDL_config.h.in
index 97b6e140d..cd322ce87 100644
--- a/include/SDL_config.h.in
+++ b/include/SDL_config.h.in
@@ -465,7 +465,6 @@
 #undef SDL_LOCALE_DUMMY
 
 /* Enable assembly routines */
-#undef SDL_ASSEMBLY_ROUTINES
 #undef SDL_ALTIVEC_BLITTERS
 #undef SDL_ARM_SIMD_BLITTERS
 #undef SDL_ARM_NEON_BLITTERS
diff --git a/include/SDL_config_macosx.h b/include/SDL_config_macosx.h
index f752a7b1d..023ecaae3 100644
--- a/include/SDL_config_macosx.h
+++ b/include/SDL_config_macosx.h
@@ -269,7 +269,6 @@
 #define SDL_FILESYSTEM_COCOA   1
 
 /* Enable assembly routines */
-#define SDL_ASSEMBLY_ROUTINES   1
 #ifdef __ppc__
 #define SDL_ALTIVEC_BLITTERS    1
 #endif
diff --git a/include/SDL_config_os2.h b/include/SDL_config_os2.h
index ae11ccdeb..130dd324a 100644
--- a/include/SDL_config_os2.h
+++ b/include/SDL_config_os2.h
@@ -56,9 +56,6 @@
 #define SDL_TIMER_OS2 1
 #define SDL_FILESYSTEM_OS2 1
 
-/* Enable assembly routines */
-#define SDL_ASSEMBLY_ROUTINES 1
-
 /* use libsamplerate for audio rate conversion. */
 /*#define HAVE_LIBSAMPLERATE_H 1 */
 
diff --git a/include/SDL_config_windows.h b/include/SDL_config_windows.h
index 7c2d74643..90f5ddc06 100644
--- a/include/SDL_config_windows.h
+++ b/include/SDL_config_windows.h
@@ -301,11 +301,6 @@ typedef unsigned int uintptr_t;
 /* Enable filesystem support */
 #define SDL_FILESYSTEM_WINDOWS  1
 
-/* Enable assembly routines (Win64 doesn't have inline asm) */
-#ifndef _WIN64
-#define SDL_ASSEMBLY_ROUTINES   1
-#endif
-
 #endif /* SDL_config_windows_h_ */
 
 /* vi: set ts=4 sw=4 expandtab: */
diff --git a/include/SDL_config_winrt.h b/include/SDL_config_winrt.h
index 9d8d2ebd6..75aef4ebb 100644
--- a/include/SDL_config_winrt.h
+++ b/include/SDL_config_winrt.h
@@ -257,9 +257,4 @@ typedef unsigned int uintptr_t;
 /* Enable system power support */
 #define SDL_POWER_WINRT 1
 
-/* Enable assembly routines (Win64 doesn't have inline asm) */
-#ifndef _WIN64
-#define SDL_ASSEMBLY_ROUTINES   1
-#endif
-
 #endif /* SDL_config_winrt_h_ */