Some systems need to link to libiconv explicitly, thus add a check for it. (#2586)

diff --git a/configure.ac b/configure.ac
index b57f9efaf3eb793dcfe3d585ff641a6b768b342b..c0f3258da449071733bf313745cf6c0da3ef9e65 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -85,6 +85,8 @@ AC_SEARCH_LIBS([ev_run], [ev], , [AC_MSG_FAILURE([cannot find the required ev_ru
 
 AC_SEARCH_LIBS([shm_open], [rt])
 
+AC_SEARCH_LIBS([iconv_open], [iconv], , [AC_MSG_FAILURE([cannot find the required iconv_open() function despite trying to link with -liconv])])
+
 AX_PTHREAD
 
 dnl Each prefix corresponds to a source tarball which users might have