Currently the configure script provides no infomation but to update the pkg-config path on failure to link with DPDK. Fix this to provide more information to the user on failure.
Before: checking whether linking with dpdk works... no configure: error: Could not find DPDK library in default search path, update PKG_CONFIG_PATH for pkg-config to find the .pc file in non-standard location After: checking whether linking with dpdk works... no configure: error: configure:27158: gcc -o conftest -include rte_config.h ... -Wl,--whole-archive -l:librte_bus_pci.a -l:my_lib.a ... -lunwind >&5 /usr/bin/ld: cannot find -l:my_lib.a Signed-off-by: Sunil Pai G <[email protected]> --- acinclude.m4 | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/acinclude.m4 b/acinclude.m4 index dba365ea1..1af277447 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -475,7 +475,8 @@ AC_DEFUN([OVS_CHECK_DPDK], [ # DPDK uses dlopen to load plugins. OVS_FIND_DEPENDENCY([dlopen], [dl], [libdl]) - AC_MSG_CHECKING([whether linking with dpdk works]) + DPDK_STRING="whether linking with dpdk works" + AC_MSG_CHECKING([$DPDK_STRING]) LIBS="$DPDK_LIB $LIBS" AC_LINK_IFELSE( [AC_LANG_PROGRAM([#include <rte_config.h> @@ -485,10 +486,10 @@ AC_DEFUN([OVS_CHECK_DPDK], [ [AC_MSG_RESULT([yes]) DPDKLIB_FOUND=true], [AC_MSG_RESULT([no]) + # Fetch the cause of failure from config.log + DPDK_LINK_ERROR=$(grep "$DPDK_STRING" -A2 config.log | tail -n2) AC_MSG_ERROR(m4_normalize([ - Could not find DPDK library in default search path, update - PKG_CONFIG_PATH for pkg-config to find the .pc file in - non-standard location])) + $DPDK_LINK_ERROR])) ]) CFLAGS="$ovs_save_CFLAGS" -- 2.25.1 _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
