1 files changed, 3 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index 21a1d4c..218dfcd 100644
--- a/configure.in
+++ b/configure.in
@@ -3405,6 +3405,9 @@ if test ${ac_cv_sizeof_long_double} = 0; then
 else
    AC_CACHE_VAL([hdf5_cv_ullong_to_ldouble_precision],
         [AC_TRY_RUN([
+        #include <stdlib.h>
+        #include <string.h>
+
         int main(void)
         {
             /* General variables */