1
dnl See whether weak symbol is supported.
2
AC_DEFUN(LIBIBERTY_HAVE_WEAK_SYMBOL,
3
[AC_MSG_CHECKING([whether weak symbol works])
4
AC_CACHE_VAL(libiberty_cv_have_weak_symbol,
6
#pragma weak liberty_weak_symbol_test
7
extern void liberty_weak_symbol_test ();],
8
[if (return &liberty_weak_symbol_test != NULL) return 1],
9
libiberty_cv_have_weak_symbol=no, libiberty_cv_have_weak_symbol=yes)])
10
AC_MSG_RESULT($libiberty_cv_have_weak_symbol)
11
if test $libiberty_cv_have_weak_symbol = yes; then
12
AC_DEFINE(HAVE_WEAK_SYMBOL, 1, [Define if weak symbol works.])