Re: GCC build failed for native with your patch on 2002-06-02T22:30:03Z.

[Phil Edwards <phil at jaj dot com>]

On Mon, Jun 03, 2002 at 01:21:06PM +0100, Neil Booth wrote:
> neil@cat:~/src/gcc/build/i686-pc-linux-gnu/libstdc++-v3/src$
> /home/neil/src/gcc/build/gcc/xgcc -shared-libgcc
> -B/home/neil/src/gcc/build/gcc/ -nostdinc++
> -L/home/neil/src/gcc/build/i686-pc-linux-gnu/libstdc++-v3/src
> -L/home/neil/src/gcc/build/i686-pc-linux-gnu/libstdc++-v3/src/.libs
> -B/usr/local/i686-pc-linux-gnu/bin/ -B/usr/local/i686-pc-linux-gnu/lib/
> -isystem /usr/local/i686-pc-linux-gnu/include -nostdinc++
> -I/home/neil/src/gcc/build/i686-pc-linux-gnu/libstdc++-v3/include/i686-pc-linux-gnu
> -I/home/neil/src/gcc/build/i686-pc-linux-gnu/libstdc++-v3/include
> -I../../../../libstdc++-v3/libsupc++ -I../../../../libstdc++-v3/libmath
> -g -O2 -D_GNU_SOURCE -fno-implicit-templates -Wall -Wno-format -W
> -Wwrite-strings -Winline -fdiagnostics-show-location=once
> -ffunction-sections -fdata-sections -g -Wp,-MD,.deps/functexcept.pp -c
> ../../../../libstdc++-v3/src/functexcept.cc -o functexcept.o >/dev/null
> ../../../../libstdc++-v3/src/functexcept.cc: In destructor `virtual 
>    std::domain_error::~domain_error()':
> ../../../../libstdc++-v3/src/functexcept.cc:61: Internal compiler error
> in 
>    remove_insn, at emit-rtl.c:3537
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> 
> This is how it died for me.  Why do we pipe stderr to /dev/null?

Look at the previous [two] command[s].  The makefile is calling libtool
to build a .lo file.  Libtool, in turn, runs (and echos) the build twice.
The first time, it passes -fPIC -DPIC and lets the user see diagnostics.
The second time, it doesn't pass any PIC options, and sinks the output on the
assumption that the user won't want to see the (presumably) same diags twice.

The assumption is a reasonably good one, but it falls down when the
presence/absence of -fPIC makes a difference.  Which seems to be the case
here, since there's no other difference.


Phil

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