It looks fairly easy to fix; but I don't have the know-how. I'm impressed with how well portage actually works - the fact that it even looks like it's working ;) Keep up the great work guys! >>> md5 src_uri ;-) libpcap-0.8.3.tar.gz >>> Unpacking source... >>> Unpacking libpcap-0.8.3.tar.gz to /var/tmp/portage/libpcap-0.8.3-r1/work * Applying libpcap-0.8.1-fPIC.patch... [ ok ] >>> Source unpacked. ./configure --prefix=/usr --host=powerpc-apple-darwin --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-ipv6 configure: WARNING: If you wanted to set the --build type, don't use --host. If a cross compiler is detected then cross compile mode will be used. checking build system type... powerpc-apple-darwin7.5.0 checking host system type... powerpc-apple-darwin checking target system type... powerpc-apple-darwin checking for powerpc-apple-darwin-gcc... no checking for gcc... gcc checking for C compiler default output... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking gcc version... 3 checking for inline... inline checking for __attribute__... yes checking for u_int8_t using gcc... yes checking for u_int16_t using gcc... yes checking for u_int32_t using gcc... yes checking how to run the C preprocessor... gcc -E checking for egrep... grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking sys/ioccom.h usability... yes checking sys/ioccom.h presence... yes checking for sys/ioccom.h... yes checking sys/sockio.h usability... yes checking sys/sockio.h presence... yes checking for sys/sockio.h... yes checking ifaddrs.h usability... yes checking ifaddrs.h presence... yes checking for ifaddrs.h... yes checking limits.h usability... yes checking limits.h presence... yes checking for limits.h... yes checking for netinet/if_ether.h... yes checking for ANSI ioctl definitions... yes checking for ether_hostton... yes checking for strerror... yes checking for strlcpy... yes checking for vsnprintf... yes checking for snprintf... yes checking if --disable-protochain option is specified... enabled checking packet capture type... bpf checking for getifaddrs... yes checking if --enable-ipv6 option is specified... no checking whether to build optimizer debugging code... no checking whether to build parser debugging code... no checking whether we have /proc/net/dev... no checking whether we have DAG API... no checking for flex... flex checking for flex 2.4 or higher... yes checking for bison... bison checking for powerpc-apple-darwin-ranlib... no checking for ranlib... ranlib checking if sockaddr struct has sa_len member... yes checking if sockaddr_storage struct exists... yes checking if dl_hp_ppa_info_t struct has dl_module_id_1 member... no checking if unaligned accesses fail... no checking for a BSD-compatible install... /usr/bin/install -c configure: creating ./config.status config.status: creating Makefile config.status: creating config.h gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./pcap-bpf.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./fad-getad.c sed -e 's/.*/static const char pcap_version_string[] = "libpcap version &";/' ./VERSION > version.h gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./inet.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./gencode.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./optimize.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./nametoaddr.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./etherent.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./savefile.c rm -f bpf_filter.c ln -s ./bpf/net/bpf_filter.c bpf_filter.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./bpf_image.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./bpf_dump.c flex -Ppcap_ -t scanner.l > $$.scanner.c; mv $$.scanner.c scanner.c bison -y -p pcap_ -d grammar.y mv y.tab.c grammar.c mv y.tab.h tokdefs.h sed -e 's/.*/char pcap_version[] = "&";/' ./VERSION > version.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c ./pcap.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c bpf_filter.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c scanner.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -Dyylval=pcap_lval -c grammar.c gcc -O2 -O2 -pipe -mcpu=7450 -maltivec -mabi=altivec -mpowerpc-gfxopt -I. -DHAVE_CONFIG_H -D_U_="__attribute__((unused))" -fPIC -c version.c ar rc libpcap.a pcap-bpf.o fad-getad.o pcap.o inet.o gencode.o optimize.o nametoaddr.o etherent.o savefile.o bpf_filter.o bpf_image.o bpf_dump.o scanner.o grammar.o version.o ranlib libpcap.a gcc: unrecognized option `-shared' ld: unknown flag: -soname !!! ERROR: net-libs/libpcap-0.8.3-r1 failed. !!! Function src_compile, Line 31, Exitcode 1 !!! couldn't make a shared lib !!! If you need support, post the topmost build error, NOT this status message. Reproducible: Always Steps to Reproduce: On a Mac OS X system with Portage installed, FEATURES="-sandbox" USE="gtk" ACCEPT_KEYWORDS="macos ~macos ~ppc ppc" emerge ettercap Actual Results: It failed with the error in the Details section. Expected Results: It should have compiled :) PPC G4 running OSX 10.3.5
The included Makefile in libpcap-0.8.3.tar.gz only compiles static libraries; the ebuild includes the line: gcc -Wl,-soname,libpcap.so.0 -shared -fPIC -o libpcap.so.${PV:0:3} *.o to build a shared library after the Makefile has built a static library. But the required gcc options for building shared libraries are different in OS X. Instead of -shared, you use -dynamiclib. And instead of passing "-soname libpcap.so.0" to the linker (which is what "-Wl,-soname,libpcap.so.0" does), you pass those arguments to gcc as well; -soname becomes -install_name, and is supposed to include the path where the library will eventually be installed. Thus "-Wl,-soname,libpcap.so.0" becomes "-install_name /usr/lib/libpcap.0.dylib". Then there's a couple other things to keep in mind: by default, when you build a shared library, OS X's gcc builds what is called a "two-level namespace" library. You probably wanted a "flat namespace" library instead. (The difference between the two is explained over at http://developer.apple.com/releasenotes/DeveloperTools/TwoLevelNamespaces.html). So you need the "-flat_namespace" flag as well when you build your shared library. And finally, you're going to need to specify a "compatibility version" and a "current version" for this dynamic library. The "current version" is just what is sounds like: the current version of the library. Here you can just use the same version number as the library itself (in this case, 0.8.3). The "compatibility version" is what the OS X linker looks at to see if it's got compatible versions of a library. Here, unless you know what you're doing, a good default is probably the first three characters of the version number (in this case, 0.8). Putting all that together, the command you're going to want is: gcc -dynamiclib -flat_namespace -install_name /usr/lib/libpcap.0.dylib -compatibility_version ${PV:0:3} -current_version ${PV} -fPIC -o libpcap.${PV:0:3}.dylib *.o
Well, if you use that command line to compile, there's one more problem: you'll get an error like "ld: common symbols not allowed with MH_DYLIB output format with the -multi_module option". Looking at how fink solved this one, I see they included a patch that adds "-fno-common" to CFLAGS in the Makefile. That should take care of the "common symbols not allowed" problem. (Does anyone know the difference between "common" symbols and, well, un"common" ones?)
Created attachment 39007 [details, diff] libpcap-macos.patch With the addition of -fno-common to CFLAGS, it works. Note that this does overwrite some default Macintosh files, so this is not for the faint of heart. If you really want to install this, you'll need to either use "FEATURES='-collision-protect'", or else (my favorite) find out which files have collisions (it'll probably be /usr/lib/libpcap* and /usr/include/pcap*.h) and then move them out of the way somehow (I renamed them to /usr/lib/libpcap*.orig and /usr/include/pcap*.h.orig). Here's a patch that adds -fno-common to CFLAGS in the Makefile.
Created attachment 39008 [details, diff] libpcap-0.8.3-r1.ebuild.patch And here's an ebuild patch that will compile a shared libpcap correctly on macos. I've tested this on my iBook G4 running Panther (10.3.5), and it works for me.
An older version is already in package.provided. Please test for ppc-darwin if desired, but due to policy we will not be overwriting the already provided version.
leaving this one here in case darwin porters care to look at it.
This depends on bug 67162. Will take a look at it when 67162 has gotten somewhere. Until then, this bug should remain frozen.
