Hello all,

I'm using current cvs version of autoconf 2.61b and when doing a "autoreconf
-vfi" I get:
...
configure.in:60: warning: AC_COMPILE_IFELSE was called before
AC_USE_SYSTEM_EXTENSIONS
...
See attached shell output text.

I have reported this to autoconf as well, but they seem to think that
nothing is wrong (basically a gnulib problem). It show up in several GNU
projects and I think it's due to a recent patch of AC_USE_SYSTEM_EXTENSIONS.

I'm unsure what to change in configure.in to fix this.

Any comment on this would be most welcome

Thanks
Jerker

------------------------------------------------
Environment:
$ uname -a
Interix max2008 6.0 10.0.6025.0 genuineintel
Intel64_Family_15_Model_6_Stepping_5

Which means x64 SUA (NT POSIX subsystem) on Windows 2008 RC1 with Interix
x64 SDK 6.0.

GNU m4-1.4.8, shell: Interix 64bit pdksh
GNU make cvs source as of Jan 2008
$ autoreconf -vfi
autoreconf: Entering directory `.'
autoreconf: running: autopoint --force
Copying file config/mkinstalldirs
autoreconf: running: aclocal --force -I config
configure.in:60: warning: AC_COMPILE_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
../../../lib/autoconf/specific.m4:383: AC_USE_SYSTEM_EXTENSIONS is expanded 
from...
../../../lib/autoconf/specific.m4:454: AC_MINIX is expanded from...
configure.in:60: the top level
configure.in:60: warning: AC_RUN_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
configure.in:405: warning: AC_CACHE_VAL(make_cv_sys_gnu_glob, ...): suspicious 
presence of an AC_SUBST in the second arg
ument, where no actions should be taken
../../../lib/autoconf/general.m4:1963: AC_CACHE_VAL is expanded from...
configure.in:405: the top level
autoreconf: configure.in: tracing
configure.in:60: warning: AC_COMPILE_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
../../../lib/autoconf/specific.m4:383: AC_USE_SYSTEM_EXTENSIONS is expanded 
from...
../../../lib/autoconf/specific.m4:454: AC_MINIX is expanded from...
configure.in:60: the top level
configure.in:60: warning: AC_RUN_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
configure.in:405: warning: AC_CACHE_VAL(make_cv_sys_gnu_glob, ...): suspicious 
presence of an AC_SUBST in the second arg
ument, where no actions should be taken
../../../lib/autoconf/general.m4:1963: AC_CACHE_VAL is expanded from...
configure.in:405: the top level
autoreconf: configure.in: not using Libtool
autoreconf: running: /usr/local/bin/autoconf --force
configure.in:60: warning: AC_COMPILE_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
../../../lib/autoconf/specific.m4:383: AC_USE_SYSTEM_EXTENSIONS is expanded 
from...
../../../lib/autoconf/specific.m4:454: AC_MINIX is expanded from...
configure.in:60: the top level
configure.in:60: warning: AC_RUN_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
configure.in:405: warning: AC_CACHE_VAL(make_cv_sys_gnu_glob, ...): suspicious 
presence of an AC_SUBST in the second arg
ument, where no actions should be taken
../../../lib/autoconf/general.m4:1963: AC_CACHE_VAL is expanded from...
configure.in:405: the top level
autoreconf: running: /usr/local/bin/autoheader --force
configure.in:60: warning: AC_COMPILE_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
../../../lib/autoconf/specific.m4:383: AC_USE_SYSTEM_EXTENSIONS is expanded 
from...
../../../lib/autoconf/specific.m4:454: AC_MINIX is expanded from...
configure.in:60: the top level
configure.in:60: warning: AC_RUN_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
configure.in:405: warning: AC_CACHE_VAL(make_cv_sys_gnu_glob, ...): suspicious 
presence of an AC_SUBST in the second arg
ument, where no actions should be taken
../../../lib/autoconf/general.m4:1963: AC_CACHE_VAL is expanded from...
configure.in:405: the top level
autoreconf: running: automake --add-missing --copy --force-missing
configure.in:60: warning: AC_COMPILE_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
../../../lib/autoconf/specific.m4:383: AC_USE_SYSTEM_EXTENSIONS is expanded 
from...
../../../lib/autoconf/specific.m4:454: AC_MINIX is expanded from...
configure.in:60: the top level
configure.in:60: warning: AC_RUN_IFELSE was called before 
AC_USE_SYSTEM_EXTENSIONS
configure.in:405: warning: AC_CACHE_VAL(make_cv_sys_gnu_glob, ...): suspicious 
presence of an AC_SUBST in the second arg
ument, where no actions should be taken
../../../lib/autoconf/general.m4:1963: AC_CACHE_VAL is expanded from...
configure.in:405: the top level
autoreconf: Leaving directory `.'
$ 
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