From 33e81e381a3fe1003e403cc0fca95a131e01747e Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Thu, 26 Nov 2015 16:24:59 +0100 Subject: [PATCH] quagga: fix static linking This commit adds a patch to quagga's configure.ac to fix a library ordering problem that is causing a build failure in static linking scenario. Fixes: http://autobuild.buildroot.org/results/c08/c086f3128232af70d24fd5faf9282ce91d6488ef/ Signed-off-by: Thomas Petazzoni Signed-off-by: Peter Korsgaard --- ...ure-fix-static-linking-with-readline.patch | 41 +++++++++++++++++++ package/quagga/quagga.mk | 2 + 2 files changed, 43 insertions(+) create mode 100644 package/quagga/0002-configure-fix-static-linking-with-readline.patch diff --git a/package/quagga/0002-configure-fix-static-linking-with-readline.patch b/package/quagga/0002-configure-fix-static-linking-with-readline.patch new file mode 100644 index 0000000000..243dfaf75d --- /dev/null +++ b/package/quagga/0002-configure-fix-static-linking-with-readline.patch @@ -0,0 +1,41 @@ +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 + diff --git a/package/quagga/quagga.mk b/package/quagga/quagga.mk index ce1d34b264..c5dd2ba4e2 100644 --- a/package/quagga/quagga.mk +++ b/package/quagga/quagga.mk @@ -11,6 +11,8 @@ QUAGGA_DEPENDENCIES = host-gawk QUAGGA_LICENSE = GPLv2+ QUAGGA_LICENSE_FILES = COPYING QUAGGA_CONF_OPTS = --program-transform-name='' +# 0002-configure-fix-static-linking-with-readline.patch +QUAGGA_AUTORECONF = YES QUAGGA_CONF_OPTS += $(if $(BR2_PACKAGE_QUAGGA_ZEBRA),--enable-zebra,--disable-zebra) QUAGGA_CONF_OPTS += $(if $(BR2_PACKAGE_QUAGGA_BABELD),--enable-babeld,--disable-babeld)