Bug 48747 – tcpdump-3.8.3-r1 doesn't build with gcc-3.4 and -O2+

• Product: Gentoo Linux
• Status: VERIFIED FIXED

[Description Ahmed Farid 2004-04-22 17:57:49 UTC]

it doesn't like -funit-at-a-time which gets enabled by default in -O2 and -O3 in gcc-3.4.
fix : 
[ `gcc -dumpversion 2>&1` == "3.4.0" ] && append-flags -fno-unit-at-a-time

should go above the econf line in src_compile


Reproducible: Always
Steps to Reproduce:
1. emerge =gcc-3.4
2. CFLAGS="...... -O2" emerge tcpdump


Actual Results:  
Dies with : tcpdump.o(.text+0x915): In function `main': 
: undefined reference to `pcap_debug' 
collect2: ld returned 1 exit status 

Expected Results:  
it should compile and work happily ever after. 

Portage 2.0.51_pre3 (2004.0, gcc-3.4.0, glibc-2.3.3_pre20040207-r0, 
2.6.5-Speedy3) 
================================================================= 
System uname: 2.6.5-Speedy3 i686 Intel(R) Pentium(R) 4 CPU 2.20GHz 
Gentoo Base System version 1.4.9 
ccache version 2.3 [enabled] 
Autoconf: sys-devel/autoconf-2.59-r3 
Automake: sys-devel/automake-1.8.3 
ACCEPT_KEYWORDS="x86 ~x86" 
AUTOCLEAN="no" 
CFLAGS="-march=pentium4 -O2 -ftracer -pipe -fomit-frame-pointer -mfpmath=sse 
-ffast-math   -fweb" 
CHOST="i686-pc-linux-gnu" 
COMPILER="gcc3" 
CONFIG_PROTECT="/etc /etc/X11/XF86Config /etc/fstab /etc/make.conf /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.2/share/config /usr/kde/3/share/config /usr/kde/cvs/share/config /usr/share/config /var/qmail/control" 
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" 
CXXFLAGS="-march=pentium4 -O2 -ftracer -pipe -fomit-frame-pointer -mfpmath=sse 
-ffast-math   -fweb" 
DISTDIR="/usr/portage/distfiles" 
FEATURES="autoaddcvs ccache psyco" 
GENTOO_MIRRORS="ftp://ftp.easynet.nl/mirror/gentoo/ 
http://www.zentek-international.com/mirrors/gentoo/ 
http://ftp.easynet.nl/mirror/gentoo/" 
MAKEOPTS="-j2" 
PKGDIR="/usr/portage/packages" 
PORTAGE_TMPDIR="/var/tmp" 
PORTDIR="/usr/portage" 
PORTDIR_OVERLAY="/usr/local/portage /usr/local/bmg-portage" 
SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" 
USE="X alsa apache2 applypatches arts atm avi chroot crypt cups curl encode 
fbcon flash foomaticdb gd gdbm gif gpm gtk gtk2 imlib javascript jpeg kde 
libwww maildir md5sum mmx mozinterfaceinfo moznoirc moznomail mozp3p mozsvg 
mpeg mysql ncurses nptl offensive oggvorbis opengl pam pdflib perl php pic png 
ppds python qt quicktime readline sasl sdl spell sse ssl threads tiff truetype 
x86 xml xml2 xmms xosd xv xvid zlib"

[Comment 1 SpanKY 2004-05-02 00:33:49 UTC]

fixed in cvs, thanks

[Comment 2 P Nienaber 2004-07-13 23:21:57 UTC]

does this again with 3.4.1.  please reopen or fix, spanky ;)

[Comment 3 Travis Tilley (RETIRED) 2004-07-14 16:33:49 UTC]

fixed... again :)

[Comment 4 Stéphane Gimenez 2005-05-11 08:05:30 UTC]

Same problem with gcc-4.0.{0,1-beta}.

Could the test be changed to the following?

if [ "`gcc-major-version`" -ge "4" -o "`gcc-major-version`" -ge "3" -a "`gcc-minor-version`" -ge "4" ] ;

Thanks.