diff --git a/coreutils/test.c b/coreutils/test.c
index 7c65743..ac0ac4e 100644
--- a/coreutils/test.c
+++ b/coreutils/test.c
@@ -435,7 +435,7 @@ struct test_statics {
 };
 
 /* See test_ptr_hack.c */
-extern struct test_statics *const test_ptr_to_statics;
+extern struct test_statics *test_ptr_to_statics;
 
 #define S (*test_ptr_to_statics)
 #define args            (S.args         )
diff --git a/include/libbb.h b/include/libbb.h
index cae5465..adbf4b8 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -342,7 +342,7 @@ struct BUG_off_t_size_is_misdetected {
 #if defined(errno)
 /* If errno is a define, assume it's "define errno (*__errno_location())"
  * and we will cache it's result in this variable */
-extern int *const bb_errno;
+extern int *bb_errno;
 #undef errno
 #define errno (*bb_errno)
 #define bb_cached_errno_ptr 1
@@ -2228,7 +2228,7 @@ struct globals;
 /* '*const' ptr makes gcc optimize code much better.
  * Magic prevents ptr_to_globals from going into rodata.
  * If you want to assign a value, use SET_PTR_TO_GLOBALS(x) */
-extern struct globals *const ptr_to_globals;
+extern struct globals *ptr_to_globals;
 
 #if defined(__clang_major__) && __clang_major__ >= 9
 /* Clang/llvm drops assignment to "constant" storage. Silently.
diff --git a/libbb/lineedit.c b/libbb/lineedit.c
index 75de88e..78ad893 100644
--- a/libbb/lineedit.c
+++ b/libbb/lineedit.c
@@ -192,7 +192,7 @@ struct lineedit_statics {
 };
 
 /* See lineedit_ptr_hack.c */
-extern struct lineedit_statics *const lineedit_ptr_to_statics;
+extern struct lineedit_statics * lineedit_ptr_to_statics;
 
 #define S (*lineedit_ptr_to_statics)
 #define state            (S.state           )
diff --git a/shell/ash.c b/shell/ash.c
index f16d7fb..0eff957 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -300,10 +300,9 @@ typedef long arith_t;
  * set "-DBB_GLOBAL_CONST=''" in CONFIG_EXTRA_CFLAGS to disable
  * this optimization.
  */
-#ifndef BB_GLOBAL_CONST
-# define BB_GLOBAL_CONST const
-#endif
 
+#undef BB_GLOBAL_CONST
+#define BB_GLOBAL_CONST
 
 /* ============ Hash table sizes. Configurable. */