Bug #120402 for Net-Interface: Test fails when pcap.h missing

I ran into an issue on a new dev system where Net-Interface-0.16 passed compile, but failed testing. # at t/strlcpy.t line 13. # Compilation failed in require at t/strlcpy.t line 13. # BEGIN failed--compilation aborted at t/strlcpy.t line 13. Undefined subroutine &Net::Interface::strlcpy called at t/strlcpy.t line 38. # Looks like you planned 21 tests but ran 1. # Looks like you failed 1 test of 1 run. # Looks like your test exited with 255 just after 1. t/strlcpy.t ....... Dubious, test returned 255 (wstat 65280, 0xff00) Failed 21/21 subtests t/symbols.t ....... 1/? # Failed test 'use Net::Interface;' # at t/symbols.t line 13. # Tried to use 'Net::Interface'. # Error: Can't load '/home/cfowler/CS/system/perl-modules/modules/libnet-interface-perl/build/Net-Interface-1.012/blib/arch/auto/Net/Interface/Interface.so' for module Net::Interface: /home/cfowler/C S/system/perl-modules/modules/libnet-interface-perl/build/Net-Interface-1.012/blib/arch/auto/Net/Interface/Interface.so: undefined symbol: ni_in6_classify at /opt/cs/usr/lib/perl5/5.22/DynaLoader.pm line1 93. # at t/symbols.t line 13. # Compilation failed in require at t/symbols.t line 13. # BEGIN failed--compilation aborted at t/symbols.t line 13. # Failed test 'Undefined subroutine &main::PF_UNSPEC called at t/symbols.t line 21. # ' # at t/symbols.t line 33. # Failed test 'Undefined subroutine &main::PF_INET called at t/symbols.t line 21. # ' # at t/symbols.t line 33. # Failed test 'Undefined subroutine &main::AF_UNSPEC called at t/symbols.t line 21. In my case pcap.h is in a non-standard location. The fix was to use CPATH=<INLUCDE PATH> environment at configure and during make. Without that if I skipped testing any script using Net::Interface would dump core. I guess I was expecting Makefile.PL and configure to pull CFLAGS from perl's config. I may be mistaken as this module may be 1 of 3 or so out of 200 I use that uses configure. perl -V below: Summary of my perl5 (revision 5 version 22 subversion 3) configuration: Platform: osname=linux, osvers=2.6.18-274.12.1.el5, archname=i586-linux-thread-multi uname='linux cfowler-baytrail-d 2.6.18-274.12.1.el5 #29-ubuntu smp tue feb 14 13:56:31 utc 2012 i586 athlon i386 gnulinux ' config_args='-des -Dusethreads -Duseshrplib -Doptimize=-O2 -Dprefix=/opt/cs/usr -Dprivlib=/opt/cs/usr/share/perl5/5.22 -Darchlib=/opt/cs/usr/lib/perl5/5.22 -Dsitearch=/opt/cs/usr/lib/perl5/5.22.3 -Dsi telib=/opt/cs/usr/share/perl5/5.22.3 -Dsitescript=/opt/cs/usr/bin -Dvendorprefix=/opt/cs/usr -Dvendorarch=/opt/cs/usr/lib/perl5/vendor_perl -Dvendorlib=/opt/cs/usr/share/perl5/vendor_perl -Dvendorscript=/ opt/cs/usr/bin -Dscriptdir=/opt/cs/usr/bin -Dotherlibdirs=/opt/cs/usr/lib/perl5/other:/opt/cs/usr/share/perl5/other -Dman1dir=/opt/cs/usr/share/man/man1 -Dman3dir=/opt/cs/usr/share/man/man3 -Dsiteman1dir=/opt/cs/usr/share/man/man1 -Dsiteman3dir=/opt/cs/usr/share/man/man3 -Dvendorman1dir=/opt/cs/usr/share/man/man1 -Dvendorman3dir=/opt/cs/usr/share/man/man3 -Dinc_version_list=none -Darchname=i586-linux-thread-multi -Accflags=-m32 -march=i586 -I/opt/cs/usr/include -Dlddlflags=-shared -Wl,-rpath,/opt/cs/usr/lib -Wl,-rpath,/opt/cs/lib -L/opt/cs/usr/lib -L/opt/cs/lib -Dldflags=-Wl,-rpath,/opt/cs/usr/lib -Wl,-rpath,/opt/cs/lib -L/opt/cs/usr/lib -L/opt/cs/lib' hint=recommended, useposix=true, d_sigaction=define useithreads=define, usemultiplicity=define use64bitint=undef, use64bitall=undef, uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -m32 -march=i586 -I/opt/cs/usr/include -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_FORTIFY_SOURCE=2', optimize='-O2', cppflags='-D_REENTRANT -D_GNU_SOURCE -m32 -march=i586 -I/opt/cs/usr/include -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include' ccversion='', gccversion='4.1.2 20080704 (Red Hat 4.1.2-55)', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234, doublekind=3 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12, longdblkind=3 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8 alignbytes=4, prototype=define Linker and Libraries: ld='cc', ldflags ='-Wl,-rpath,/opt/cs/usr/lib -Wl,-rpath,/opt/cs/lib -L/opt/cs/usr/lib -L/opt/cs/lib -fstack-protector -L/usr/local/lib' libpth=/usr/local/lib /usr/lib /lib libs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc perllibs=-lpthread -lnsl -ldl -lm -lcrypt -lutil -lc libc=libc-2.5.so, so=so, useshrplib=true, libperl=libperl.so gnulibc_version='2.5' Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E -Wl,-rpath,/opt/cs/usr/lib/perl5/5.22/CORE' cccdlflags='-fPIC', lddlflags='-shared -Wl,-rpath,/opt/cs/usr/lib -Wl,-rpath,/opt/cs/lib -L/opt/cs/usr/lib -L/opt/cs/lib -L/usr/local/lib -fstack-protector' Characteristics of this binary (from libperl): Compile-time options: HAS_TIMES MULTIPLICITY PERLIO_LAYERS PERL_DONT_CREATE_GVSV PERL_HASH_FUNC_ONE_AT_A_TIME_HARD PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP PERL_NEW_COPY_ON_WRITE PERL_PRESERVE_IVUV USE_ITHREADS USE_LARGE_FILES USE_LOCALE USE_LOCALE_COLLATE USE_LOCALE_CTYPE USE_LOCALE_NUMERIC USE_LOCALE_TIME USE_PERLIO USE_PERL_ATOF USE_REENTRANT_API Built under linux Compiled at Feb 26 2017 22:53:38 %ENV: PERLLIB="/opt/perl-lib" @INC: /opt/perl-lib /opt/cs/usr/lib/perl5/5.22.3 /opt/cs/usr/share/perl5/5.22.3 /opt/cs/usr/lib/perl5/vendor_perl /opt/cs/usr/share/perl5/vendor_perl /opt/cs/usr/lib/perl5/5.22 /opt/cs/usr/share/perl5/5.22 /opt/cs/usr/lib/perl5/other /opt/cs/usr/share/perl5/other . Thanks, Chris