Changeset 092a09c

Timestamp:

09/08/14 17:24:41 (6 years ago)

Author:

Shane Alcock <salcock@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

525d09d, ea602cd

Parents:

25110ee

Message:

Ensure math library is included when using DPDK

We have to force a -lm build option after linking against the
DPDK static library, otherwise the "smart" gcc build-chain will
decide we don't need to link against libm.

If this happens, any programs that attempt to link against libtrace
will fail because ceil is undefined.

File:

• configure.in (modified) (1 diff)

configure.in

@@ -386 +386 @@
         AC_SUBST([RTE_SDK])
         # Force dpdk library to be statically linked to allow compiler optimisations
-        LIBTRACE_LIBS="$LIBTRACE_LIBS -Wl,--whole-archive -Wl,-l:libintel_dpdk.a -Wl,--no-whole-archive"
+        LIBTRACE_LIBS="$LIBTRACE_LIBS -Wl,--whole-archive -Wl,-l:libintel_dpdk.a -Wl,--no-whole-archive -Wl,-lm"
                 AC_DEFINE(HAVE_DPDK,1,[conditional for building with DPDK live capture support])
                 libtrace_dpdk=true