Re: safer way to use gnulib

[John W. Eaton]

On 16-Mar-2010, Ben Abbott wrote:

| I'm not sure this is related, but with my tip as ...
| 
| $ hg tip
| changeset:   10412:d2ac9433cd09
| tag:         tip
| user:        John W. Eaton <address@hidden>
| date:        Mon Mar 15 16:56:14 2010 -0400
| summary:     append AM_CPPFLAGS to libcruft_la_CPPFLAGS
| 
| ... compiling octave fails with the error below.
| 
| /bin/sh ../libtool  --tag=CXX   --mode=compile g++-4.2 -DHAVE_CONFIG_H -I. 
-I..            -I/sw/lib/flex/include -I/sw/include -O0 -g -m32 
-I/sw/include/freetype2 -I/sw/include/qhull -I/usr/include -I../libgnu 
-I../libgnu -I../libcruft/misc -I/sw/lib/flex/include -I/sw/include -O0 -g -m32 
-I/sw/include/freetype2 -I/sw/include/qhull -I/usr/include -I/sw/include -O0 -g 
-m32 -D_THREAD_SAFE -D_REENTRANT  -DHAVE_CONFIG_H -mieee-fp -I/sw/include 
-I/sw/include/freetype2 -I/sw/include -I/usr/X11/include   -Wall -W -Wshadow 
-Wold-style-cast -Wformat -I/sw/include -O0 -g -m32 -D_THREAD_SAFE -D_REENTRANT 
-D_THREAD_SAFE -pthread -I/sw/include -O0 -g -m32 -D_THREAD_SAFE -D_REENTRANT 
-MT liboctave_la-ODES.lo -MD -MP -MF .deps/liboctave_la-ODES.Tpo -c -o 
liboctave_la-ODES.lo `test -f 'ODES.cc' || echo './'`ODES.cc
| libtool: compile:  g++-4.2 -DHAVE_CONFIG_H -I. -I.. -I/sw/lib/flex/include 
-I/sw/include -O0 -g -m32 -I/sw/include/freetype2 -I/sw/include/qhull 
-I/usr/include -I../libgnu -I../libgnu -I../libcruft/misc 
-I/sw/lib/flex/include -I/sw/include -O0 -g -m32 -I/sw/include/freetype2 
-I/sw/include/qhull -I/usr/include -I/sw/include -O0 -g -m32 -D_THREAD_SAFE 
-D_REENTRANT -DHAVE_CONFIG_H -mieee-fp -I/sw/include -I/sw/include/freetype2 
-I/sw/include -I/usr/X11/include -Wall -W -Wshadow -Wold-style-cast -Wformat 
-I/sw/include -O0 -g -m32 -D_THREAD_SAFE -D_REENTRANT -D_THREAD_SAFE -pthread 
-I/sw/include -O0 -g -m32 -D_THREAD_SAFE -D_REENTRANT -MT liboctave_la-ODES.lo 
-MD -MP -MF .deps/liboctave_la-ODES.Tpo -c ODES.cc  -fno-common -DPIC -o 
.libs/liboctave_la-ODES.o
| In file included from /usr/include/sys/time.h:197,
|                  from ../libgnu/sys/time.h:40,
|                  from ../libgnu/sys/select.h:51,
|                  from /usr/include/unistd.h:519,
|                  from ../libgnu/unistd.h:29,
|                  from 
/usr/include/c++/4.2.1/i686-apple-darwin10/bits/os_defines.h:61,
|                  from 
/usr/include/c++/4.2.1/i686-apple-darwin10/bits/c++config.h:41,
|                  from /usr/include/c++/4.2.1/cstddef:50,
|                  from Array.h:30,
|                  from MArray.h:28,
|                  from dMatrix.h:27,
|                  from ODESFunc.h:26,
|                  from ODES.h:26,
|                  from ODES.cc:27:
| ../libgnu/stdlib.h:737: error: previous declaration of ‘int _gl_warn_on_use’ 
with ‘C++’ linkage
| ../libgnu/time.h:350: error: conflicts with new declaration with ‘C’ linkage

Will you please add -save-temps to the command libtool uses for
compiling ODES.cc and send the resulting ODES.ii file to me?

Thanks,

jwe