Hello,
in Debian, tcpreplay 4.3.3 failed to build on the i386 architecture for
a missing pcap, although it's certainly there. Error message (as seen at
¹):
| configure:17093: result: yes
| configure:17122: checking for libpcap
| configure:17412: result: no
| configure:17414: error: libpcap not found
After spending two hours on this ...
./configure tries to locate libpcap.so and many places are tried but the
right one "/usr/lib/i386-linux-gnu/libpcap.so" is not. Some bisecting
eventually led to
| 3f52a1abd28edac43a5abefc9a33c8bc96f38609 is the first bad commit
| commit 3f52a1abd28edac43a5abefc9a33c8bc96f38609
| Author: Fred Klassen <fklas...@appneta.com>
| Date: Wed May 20 12:38:02 2020 -0700
|
| Bug #580 version bump, clean up configure warnings
and I think the following should be applied on top of v4.3.3:
--- a/configure.ac
+++ b/configure.ac
@@ -106,7 +113,7 @@
AC_MSG_RESULT([legacy])
fi
;;
- Linux*)
+ linux*)
dnl ============================================
dnl Some libraries are in /usr/lib/i386-linux-gnu
dnl but host is i686-linux-gnu
since only the MULTIARCH will be correctly picked using
dpkg-architecture - FWIW: host_os='linux-gnu'
During the ride I tried --enable-pcapconfig but encountered different
problems. This fails in the pcap version check - not because libpcap is
too old but because the test fails to build.
| | #include <stdio.h>
| | #include "-D_U_="__attribute__((unused))" -g -Wextra -Wno-variadic-macros
-Wfatal-errors -Wno-format-contains-nul -g -O0 -Wall -Wextra -Wfatal-errors
-Wno-variadic-macros -Wno-format-contains-nul -I/usr/include/pcap.h"
| | #define PCAP_TEST "0.8"
| (...)
| configure:18009: i686-linux-gnu-gcc -o conftest
-D_U_="__attribute__((unused))" -g -Wextra -Wno-variadic-macros -Wfatal-errors
-Wno-format-contains-nul -g -O0 -Wall -Wextra -Wfatal-errors
-Wno-variadic-macros -Wno-format-contains-nul -I/usr/include conftest.c
-lpcap >&5
| + eval '$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext
$LIBS >&5'
| ++ i686-linux-gnu-gcc -o conftest '-D_U_="__attribute__((unused))"' -g
-Wextra -Wno-variadic-macros -Wfatal-errors -Wno-format-contains-nul -g -O0
-Wall -Wextra -Wfatal-errors -Wno-variadic-macros -Wno-format-contains-nul
-I/usr/include conftest.c -lpcap
| conftest.c:125:18: warning: extra tokens at end of #include directive
| 125 | #include "-D_U_="__attribute__((unused))" -g -Wextra
-Wno-variadic-macros -Wfatal-errors -Wno-format-contains-nul -g -O0 -Wall
-Wextra -Wfatal-errors -Wno-variadic-macros -Wno-format-contains-nul
-I/usr/include/pcap.h"
| | ^~~~~~~~~~~~~
| conftest.c:125:10: fatal error: -D_U_=: No such file or directory
| 125 | #include "-D_U_="__attribute__((unused))" -g -Wextra
-Wno-variadic-macros -Wfatal-errors -Wno-format-contains-nul -g -O0 -Wall
-Wextra -Wfatal-errors -Wno-variadic-macros -Wno-format-contains-nul
-I/usr/include/pcap.h"
| | ^~~~~~~~
| compilation terminated.
From config.log:
| LPCAPINC='-D_U_="__attribute__((unused))" -g -Wextra -Wno-variadic-macros
-Wfatal-errors -Wno-format-contains-nul -g -O0 -Wall -Wextra -Wfatal-errors
-Wno-variadic-macros -Wno-format-contains-nul -I/usr/include/pcap.h'
That probably should rather be
| LPCAPINC='/usr/include/pcap.h'
but honestly I have no idea what went wrong here. Perhaps check at some
time.
Regards,
Christoph
¹
https://buildd.debian.org/status/fetch.php?pkg=tcpreplay&arch=i386&ver=4.3.3-1&stamp=1595669629&raw=0
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