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-rw-r--r--libcpp/configure.ac4
1 files changed, 2 insertions, 2 deletions
diff --git a/libcpp/configure.ac b/libcpp/configure.ac
index d520e93..31fb8ba 100644
--- a/libcpp/configure.ac
+++ b/libcpp/configure.ac
@@ -81,8 +81,8 @@ define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
putchar_unlocked putc_unlocked)
AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
-AC_CHECK_DECLS(m4_split(m4_normalize(abort asprintf basename errno getopt \
- libcpp_UNLOCKED_FUNCS vasprintf)))
+AC_CHECK_PROTOS(m4_split(m4_normalize(abort asprintf basename(char*) errno \
+ getopt libcpp_UNLOCKED_FUNCS vasprintf)))
# Checks for library functions.
AC_FUNC_ALLOCA