From 62ede7482da15d276b880f6d8540dce400dc50a7 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Thu, 26 Nov 2015 15:59:07 +0100 Subject: [PATCH] configure: fix static linking with readline When static linking is used, the order of the libraries is important, and the libraries using a symbol from another library should be listed *before* the library providing that symbol (see http://eli.thegreenplace.net/2013/07/09/library-order-in-static-linking) for details. When vtysh is linked statically, the command line contains "-lcurses -lreadline", which causes a build failure due to unresolved symbols. This is because readline is using symbols from the curses library: the order should be the opposite. This patch fixes that problem by putting the -lreadline at the beginning of the LIBREADLINE variable calcualted by the configure script. Signed-off-by: Thomas Petazzoni --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 3003e62..290953d 100755 --- a/configure.ac +++ b/configure.ac @@ -652,7 +652,7 @@ dnl [TODO] on Linux, and in [TODO] on Solaris. )] )] ) - AC_CHECK_LIB(readline, main, LIBREADLINE="$LIBREADLINE -lreadline",, + AC_CHECK_LIB(readline, main, LIBREADLINE="-lreadline $LIBREADLINE",, "$LIBREADLINE") if test $ac_cv_lib_readline_main = no; then AC_MSG_ERROR([vtysh needs libreadline but was not found and usable on your system.]) -- 2.6.3