diff --git a/libguile/srfi-4.c b/libguile/srfi-4.c
index 12870e6bf..544800bb8 100644
--- a/libguile/srfi-4.c
+++ b/libguile/srfi-4.c
@@ -304,7 +304,7 @@ uvec_assert (int type, SCM obj)
 }
 
 static SCM
-take_uvec (int type, const void *base, size_t len)
+take_uvec (int type, void *base, size_t len)
 {
   SCM_RETURN_NEWSMOB3 (scm_tc16_uvec, type, len, (scm_t_bits) base);
 }
diff --git a/libguile/srfi-4.h b/libguile/srfi-4.h
index 653fd1e5d..997aad375 100644
--- a/libguile/srfi-4.h
+++ b/libguile/srfi-4.h
@@ -56,7 +56,7 @@ SCM_API void *scm_uniform_vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_u8vector_p (SCM obj);
 SCM_API SCM scm_make_u8vector (SCM n, SCM fill);
-SCM_API SCM scm_take_u8vector (const scm_t_uint8 *data, size_t n);
+SCM_API SCM scm_take_u8vector (scm_t_uint8 *data, size_t n);
 SCM_API SCM scm_u8vector (SCM l);
 SCM_API SCM scm_u8vector_length (SCM uvec);
 SCM_API SCM scm_u8vector_ref (SCM uvec, SCM index);
@@ -76,7 +76,7 @@ SCM_API scm_t_uint8 *scm_u8vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_s8vector_p (SCM obj);
 SCM_API SCM scm_make_s8vector (SCM n, SCM fill);
-SCM_API SCM scm_take_s8vector (const scm_t_int8 *data, size_t n);
+SCM_API SCM scm_take_s8vector (scm_t_int8 *data, size_t n);
 SCM_API SCM scm_s8vector (SCM l);
 SCM_API SCM scm_s8vector_length (SCM uvec);
 SCM_API SCM scm_s8vector_ref (SCM uvec, SCM index);
@@ -96,7 +96,7 @@ SCM_API scm_t_int8 *scm_s8vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_u16vector_p (SCM obj);
 SCM_API SCM scm_make_u16vector (SCM n, SCM fill);
-SCM_API SCM scm_take_u16vector (const scm_t_uint16 *data, size_t n);
+SCM_API SCM scm_take_u16vector (scm_t_uint16 *data, size_t n);
 SCM_API SCM scm_u16vector (SCM l);
 SCM_API SCM scm_u16vector_length (SCM uvec);
 SCM_API SCM scm_u16vector_ref (SCM uvec, SCM index);
@@ -117,7 +117,7 @@ SCM_API scm_t_uint16 *scm_u16vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_s16vector_p (SCM obj);
 SCM_API SCM scm_make_s16vector (SCM n, SCM fill);
-SCM_API SCM scm_take_s16vector (const scm_t_int16 *data, size_t n);
+SCM_API SCM scm_take_s16vector (scm_t_int16 *data, size_t n);
 SCM_API SCM scm_s16vector (SCM l);
 SCM_API SCM scm_s16vector_length (SCM uvec);
 SCM_API SCM scm_s16vector_ref (SCM uvec, SCM index);
@@ -137,7 +137,7 @@ SCM_API scm_t_int16 *scm_s16vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_u32vector_p (SCM obj);
 SCM_API SCM scm_make_u32vector (SCM n, SCM fill);
-SCM_API SCM scm_take_u32vector (const scm_t_uint32 *data, size_t n);
+SCM_API SCM scm_take_u32vector (scm_t_uint32 *data, size_t n);
 SCM_API SCM scm_u32vector (SCM l);
 SCM_API SCM scm_u32vector_length (SCM uvec);
 SCM_API SCM scm_u32vector_ref (SCM uvec, SCM index);
@@ -158,7 +158,7 @@ SCM_API scm_t_uint32 *scm_u32vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_s32vector_p (SCM obj);
 SCM_API SCM scm_make_s32vector (SCM n, SCM fill);
-SCM_API SCM scm_take_s32vector (const scm_t_int32 *data, size_t n);
+SCM_API SCM scm_take_s32vector (scm_t_int32 *data, size_t n);
 SCM_API SCM scm_s32vector (SCM l);
 SCM_API SCM scm_s32vector_length (SCM uvec);
 SCM_API SCM scm_s32vector_ref (SCM uvec, SCM index);
@@ -187,7 +187,7 @@ SCM_API SCM scm_list_to_u64vector (SCM l);
 SCM_API SCM scm_any_to_u64vector (SCM obj);
 
 #if SCM_HAVE_T_UINT64
-SCM_API SCM scm_take_u64vector (const scm_t_uint64 *data, size_t n);
+SCM_API SCM scm_take_u64vector (scm_t_uint64 *data, size_t n);
 SCM_API const scm_t_uint64 *scm_array_handle_u64_elements (scm_t_array_handle *h);
 SCM_API scm_t_uint64 *scm_array_handle_u64_writable_elements (scm_t_array_handle *h);
 SCM_API const scm_t_uint64 *scm_u64vector_elements (SCM uvec, 
@@ -211,7 +211,7 @@ SCM_API SCM scm_list_to_s64vector (SCM l);
 SCM_API SCM scm_any_to_s64vector (SCM obj);
 
 #if SCM_HAVE_T_INT64
-SCM_API SCM scm_take_s64vector (const scm_t_int64 *data, size_t n);
+SCM_API SCM scm_take_s64vector (scm_t_int64 *data, size_t n);
 SCM_API const scm_t_int64 *scm_array_handle_s64_elements (scm_t_array_handle *h);
 SCM_API scm_t_int64 *scm_array_handle_s64_writable_elements (scm_t_array_handle *h);
 SCM_API const scm_t_int64 *scm_s64vector_elements (SCM uvec, 
@@ -225,7 +225,7 @@ SCM_API scm_t_int64 *scm_s64vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_f32vector_p (SCM obj);
 SCM_API SCM scm_make_f32vector (SCM n, SCM fill);
-SCM_API SCM scm_take_f32vector (const float *data, size_t n);
+SCM_API SCM scm_take_f32vector (float *data, size_t n);
 SCM_API SCM scm_f32vector (SCM l);
 SCM_API SCM scm_f32vector_length (SCM uvec);
 SCM_API SCM scm_f32vector_ref (SCM uvec, SCM index);
@@ -245,7 +245,7 @@ SCM_API float *scm_f32vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_f64vector_p (SCM obj);
 SCM_API SCM scm_make_f64vector (SCM n, SCM fill);
-SCM_API SCM scm_take_f64vector (const double *data, size_t n);
+SCM_API SCM scm_take_f64vector (double *data, size_t n);
 SCM_API SCM scm_f64vector (SCM l);
 SCM_API SCM scm_f64vector_length (SCM uvec);
 SCM_API SCM scm_f64vector_ref (SCM uvec, SCM index);
@@ -265,7 +265,7 @@ SCM_API double *scm_f64vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_c32vector_p (SCM obj);
 SCM_API SCM scm_make_c32vector (SCM n, SCM fill);
-SCM_API SCM scm_take_c32vector (const float *data, size_t n);
+SCM_API SCM scm_take_c32vector (float *data, size_t n);
 SCM_API SCM scm_c32vector (SCM l);
 SCM_API SCM scm_c32vector_length (SCM uvec);
 SCM_API SCM scm_c32vector_ref (SCM uvec, SCM index);
@@ -285,7 +285,7 @@ SCM_API float *scm_c32vector_writable_elements (SCM uvec,
 
 SCM_API SCM scm_c64vector_p (SCM obj);
 SCM_API SCM scm_make_c64vector (SCM n, SCM fill);
-SCM_API SCM scm_take_c64vector (const double *data, size_t n);
+SCM_API SCM scm_take_c64vector (double *data, size_t n);
 SCM_API SCM scm_c64vector (SCM l);
 SCM_API SCM scm_c64vector_length (SCM uvec);
 SCM_API SCM scm_c64vector_ref (SCM uvec, SCM index);
diff --git a/libguile/srfi-4.i.c b/libguile/srfi-4.i.c
index 101eb386c..58a52c1d8 100644
--- a/libguile/srfi-4.i.c
+++ b/libguile/srfi-4.i.c
@@ -135,7 +135,7 @@ SCM_DEFINE (F(scm_any_to_,TAG,vector), "any->"S(TAG)"vector", 1, 0, 0,
 #ifdef CTYPE
 
 SCM
-F(scm_take_,TAG,vector) (const CTYPE *data, size_t n)
+F(scm_take_,TAG,vector) (CTYPE *data, size_t n)
 {
   scm_gc_register_collectable_memory ((void *)data, n*uvec_sizes[TYPE],
 				      uvec_names[TYPE]);