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-rw-r--r--guile-readline/configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/guile-readline/configure.in b/guile-readline/configure.in
index 7a947d079..1260bc338 100644
--- a/guile-readline/configure.in
+++ b/guile-readline/configure.in
@@ -22,7 +22,7 @@ AC_CACHE_CHECK([for rl_getc_function pointer in readline],
[AC_TRY_LINK([
#include <stdio.h>
#include <readline/readline.h>],
- [rl_getc_function;],
+ [printf ("%ld", (long) rl_getc_function)],
[ac_cv_var_rl_getc_function=yes],
[ac_cv_var_rl_getc_function=no])])
if test "${ac_cv_var_rl_getc_function}" = "yes"; then