| Summary: | sablotron: usage of libstdc++ from programmes linked with gcc (not g++) requires -shared-libgcc | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | Milan Holzäpfel <mail> |
| Component: | [OLD] Core system | Assignee: | Text-Markup Team (OBSOLETE) <text-markup+disabled> |
| Status: | RESOLVED FIXED | ||
| Severity: | major | ||
| Priority: | High | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
*** Bug 106670 has been marked as a duplicate of this bug. *** fixed the ebuild, thanks for the report |
Hello, on my uclibc-hardened system with gcc-3.4 I experience this: | bombax ~ # echo 'main(){}' > t.c | bombax ~ # gcc t.c -o t -lstdc++ | /usr/lib/gcc/i686-gentoo-linux-uclibc/3.4.4/libstdc++.so: undefined reference to `_Unwind_Resume@GCC_3.0' | /usr/lib/gcc/i686-gentoo-linux-uclibc/3.4.4/libstdc++.so: undefined reference to `_Unwind_RaiseException@GCC_3.0' | /usr/lib/gcc/i686-gentoo-linux-uclibc/3.4.4/libstdc++.so: undefined reference to `_Unwind_Resume_or_Rethrow@GCC_3.3' | collect2: ld returned 1 exit status | bombax ~ # gcc t.c -o t -lstdc++ -shared-libgcc | bombax ~ # The sablotron ebuild contains a line saying | append-ldflags -lstdc++ According to the above, it should read | append-ldflags -lstdc++ -shared-libgcc The gcc manpage states that -shared-libgcc is used automatically when using g++. (But sablotron can be linked from C programmes linked with gcc, so this is required.) Regards, Milan Reproducible: Always Steps to Reproduce: 1. 2. 3. gcc is sys-devel/gcc-3.4.4-r1 Portage 2.0.51.22-r2 (uclibc/x86/hardened, gcc-3.4.4, uclibc-0.9.27-r0, 2.6.11. 12-grsec-20 i686) ================================================================= System uname: 2.6.11.12-grsec-20 i686 AMD Athlon(tm) 64 Processor 3000+ Gentoo Base System version 1.6.13 dev-lang/python: 2.3.4-r1, 2.4.1-r1 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-gentoo-linux-uclibc" CFLAGS="-Os -march=athlon-xp -pipe -fomit-frame-pointer" CHOST="i686-gentoo-linux-uclibc" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/ config /var/qmail/alias /var/qmail/control /var/vpopmail/domains /var/vpopmail/ etc" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-Os -march=athlon-xp -pipe -fomit-frame-pointer" DISTDIR="/usr/src/pkg" FEATURES="autoconfig buildpkg distlocks nodoc noinfo noman sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo ftp://ftp. uni-erlangen.de/pub/mirrors/gentoo http://ftp.uni-erlangen.de/pub/mirrors/gentoo ftp://gentoo.inode.at/source http://gentoo.inode.at/" MAKEOPTS="-j1" PKGDIR="/usr/portage-pkg" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/jn" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="x86 3dnow 3dnowex apache2 berkdb big-tables bzip2 crypt curl gd gnutls hardened imagemagick imap jabber jpeg mbox mcal mmap mmx mng mysql ncurses perl php pic png python readline slang sse ssl subversion svg threads tidy truetype uclibc unicode utf8 vpopmail xml xml2 zlib userland_GNU kernel_linux elibc_uclibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS