configure.ac: Abort if a required function wasn't found.

This commit is contained in:
Simon Ruderich
2013-06-10 16:54:42 +02:00
parent db7cd10c74
commit 732d4d636d

View File

@@ -46,7 +46,8 @@ AC_C_INLINE
AX_C___ATTRIBUTE__
AC_FUNC_FORK
AC_CHECK_FUNCS([memmove setenv])
AC_CHECK_FUNCS([memmove setenv],
[],[AC_MSG_ERROR([function is required])])
dnl Thanks to gperftools' configure.ac (https://code.google.com/p/gperftools).
AC_MSG_CHECKING([for __builtin_expect])