‘iconv’ fails to build on NetBSD 5.1

[Ludovic Courtès]

Hi,

The ‘iconv’ modules fails to build on NetBSD 5.1 (see gcc70 of the GCC
Compile Farm):

--8<---------------cut here---------------start------------->8---
depbase=`echo iconv.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`; /bin/ksh 
../libtool  --tag=CC    --mode=compile gcc -DHAVE_CONFIG_H  -I. -I../../lib 
-I..   -I/home/ludo/soft/include -I/usr/pkg/include  -fvisibility=hidden 
-I/home/ludo/soft/include   -g -O2 -MT iconv.lo -MD -MP -MF $depbase.Tpo -c -o 
iconv.lo ../../lib/iconv.c && mv -f $depbase.Tpo $depbase.Plo
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../../lib -I.. 
-I/home/ludo/soft/include -I/usr/pkg/include -fvisibility=hidden 
-I/home/ludo/soft/include -g -O2 -MT iconv.lo -MD -MP -MF .deps/iconv.Tpo -c 
../../lib/iconv.c  -fPIC -DPIC -o .libs/iconv.o
../../lib/iconv.c:282: error: conflicting types for 'rpl_iconv'
./iconv.h:388: error: previous declaration of 'rpl_iconv' was here
--8<---------------cut here---------------end--------------->8---

The problem is:

--8<---------------cut here---------------start------------->8---
$ grep ICONV_CONST config.status
S["ICONV_CONST"]=""
D["ICONV_CONST"]=" const"
--8<---------------cut here---------------end--------------->8---

Indeed:

--8<---------------cut here---------------start------------->8---
$ grep ICONV_CONST= configure
    ICONV_CONST=;
--8<---------------cut here---------------end--------------->8---

So it seems that this snippet doesn’t get expanded:

--8<---------------cut here---------------start------------->8---
    m4_ifdef([gl_ICONV_H_DEFAULTS],
      [AC_REQUIRE([gl_ICONV_H_DEFAULTS])
       if test -n "$am_cv_proto_iconv_arg1"; then
         ICONV_CONST="const"
       fi
      ])
--8<---------------cut here---------------end--------------->8---

Ideas?

Thanks,
Ludo’.