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Date: Thu, 26 Jul 2012 14:46:18 -0700
From: Daniel Colascione <dancol AT dancol DOT org>
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To: cygwin AT cygwin DOT com
Subject: <regex> doesn't work with g++
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/tmp
$ cat foo.cpp
#include <stdio.h>
#include <regex>

int
main()
{
    std::regex e("hello");
}

$ g++ -std=3Dgnu++0x foo.cpp
/tmp/ccS3vCW7.o:foo.cpp:(.text$_ZNSt11basic_regexIcSt12regex_traitsIcEEC1EP=
Kcj[std::basic_regex<char,
std::regex_traits<char> >::basic_regex(char const*, unsigned
int)]+0x60): undefined reference to `std::basic_regex<char,
std::regex_traits<char> >::_M_compile()'
collect2: ld returned 1 exit status

$ g++ -v
Using built-in specs.
COLLECT_GCC=3Dg++
COLLECT_LTO_WRAPPER=3D/usr/lib/gcc/i686-pc-cygwin/4.5.3/lto-wrapper.exe
Target: i686-pc-cygwin
Configured with:
/gnu/gcc/releases/respins/4.5.3-3/gcc4-4.5.3-3/src/gcc-4.5.3/configure
--srcdir=3D/gnu/gcc/releases/respins/4.5.3-3/gcc4-4.5.3-3/src/gcc-4.5.3
--prefix=3D/usr --exec-prefix=3D/usr --bindir=3D/usr/bin --sbindir=3D/usr/s=
bin
--libexecdir=3D/usr/lib --datadir=3D/usr/share --localstatedir=3D/var
--sysconfdir=3D/etc --datarootdir=3D/usr/share --docdir=3D/usr/share/doc/gc=
c4
-C --datadir=3D/usr/share --infodir=3D/usr/share/info
--mandir=3D/usr/share/man -v --with-gmp=3D/usr --with-mpfr=3D/usr
--enable-bootstrap --enable-version-specific-runtime-libs
--libexecdir=3D/usr/lib --enable-static --enable-shared
--enable-shared-libgcc --disable-__cxa_atexit --with-gnu-ld
--with-gnu-as --with-dwarf2 --disable-sjlj-exceptions
--enable-languages=3Dada,c,c++,fortran,java,lto,objc,obj-c++
--enable-graphite --enable-lto --enable-java-awt=3Dgtk --disable-symvers
--enable-libjava --program-suffix=3D-4 --enable-libgomp --enable-libssp
--enable-libada --enable-threads=3Dposix --with-arch=3Di686
--with-tune=3Dgeneric --enable-libgcj-sublibs CC=3Dgcc-4 CXX=3Dg++-4
CC_FOR_TARGET=3Dgcc-4 CXX_FOR_TARGET=3Dg++-4 GNATMAKE_FOR_TARGET=3Dgnatmake
GNATBIND_FOR_TARGET=3Dgnatbind --with-ecj-jar=3D/usr/share/java/ecj.jar
Thread model: posix
gcc version 4.5.3 (GCC)


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