Message-Id: <200006091740.NAA25297@delorie.com> Mailing-List: contact cygwin-apps-help AT sourceware DOT cygnus DOT com; run by ezmlm list-help: list-post: Sender: cygwin-apps-owner AT sourceware DOT cygnus DOT com Delivered-To: mailing list cygwin-apps AT sourceware DOT cygnus DOT com From: "Parker, Ron" To: cygwin-developers AT sourceware DOT cygnus DOT com, "Parker, Ron" Cc: cygwin-apps AT sourceware DOT cygnus DOT com Subject: RE: [cet AT carlthompson DOT net: Re: Extreme newbie here...] Date: Fri, 9 Jun 2000 12:38:54 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2448.0) Content-Type: multipart/mixed; boundary="----_=_NextPart_000_01BFD239.AF98C2FA" This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_000_01BFD239.AF98C2FA Content-Type: text/plain; charset="iso-8859-1" > >bash-2.04$ g++ -mno-cygwin -fno-rtti hello.cpp -o hello > >/usr/lib/gcc-lib/i686-pc-cygwin/2.95.2/libgcc.a(_eh.o): In function > >`_eh_rtime_match': > >/home/src/gcc-2.95.2/gcc/./libgcc2.c(.text+0x389): undefined > reference to > >`_impure_ptr' > >collect2: ld returned 1 exit status > > > >If your source code will compile with -fno-exceptions, it > should work in > >most cases. > > Hmm. We noticed this when building strace and Mumit > submitted a workaround > for it. If you search the cygwin-developers archive you > might find the > reason for this. I think that the gcc library is somehow > pulling in bits > of the cygwin library. Unfortunately compiling with -fno-exceptions isn't always an option and adding a dummy "int _impure_ptr;" declaration as was done in strace does not work always work. Even the simple eh_hello.cpp I wrote up will GP if you try this. I have also compiled and linked against Mumit's ming-extras package it still dies. I feel like the great white bug hunter. "Dr. Livingston, I presume?" Which brings the following sick story to mind, http://www.qnx.com/~glen/deadbeef/3821.html. It is gross and disgusting. 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