diff --git a/configure b/configure
index 9e65de05af..4f570548ae 100755
--- a/configure
+++ b/configure
@@ -1329,6 +1329,7 @@ if test "$vnc_png" != "no" ; then
 cat > $TMPC <<EOF
 //#include <stdio.h>
 #include <png.h>
+#include <stddef.h>
 int main(void) {
     png_structp png_ptr;
     png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
@@ -1513,6 +1514,7 @@ if test "$brlapi" != "no" ; then
   brlapi_libs="-lbrlapi"
   cat > $TMPC << EOF
 #include <brlapi.h>
+#include <stddef.h>
 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
 EOF
   if compile_prog "" "$brlapi_libs" ; then
@@ -1747,6 +1749,7 @@ if test "$linux_aio" != "no" ; then
   cat > $TMPC <<EOF
 #include <libaio.h>
 #include <sys/eventfd.h>
+#include <stddef.h>
 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
 EOF
   if compile_prog "" "-laio" ; then
@@ -2127,6 +2130,7 @@ madvise=no
 cat > $TMPC << EOF
 #include <sys/types.h>
 #include <sys/mman.h>
+#include <stddef.h>
 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
 EOF
 if compile_prog "" "" ; then
@@ -2139,6 +2143,7 @@ fi
 posix_madvise=no
 cat > $TMPC << EOF
 #include <sys/mman.h>
+#include <stddef.h>
 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
 EOF
 if compile_prog "" "" ; then