Re: FYI: AC_STATE_SAVE

[Raja R Harinath]

Hi,

Akim Demaille <address@hidden> writes:
>  ./syntax.at:27: cat state-env.after
>  --- expout      Fri Dec  8 14:05:17 2000
>  +++ stdout      Fri Dec  8 14:05:28 2000
>  @@ -42,6 +42,8 @@
>   USER=epeisach
>   XPLOR=/usr/progs/Xplor3.8.1
>   _XPG=0
>  +/usr/lib32/cmplrs/mfef77 -G8 -TARG:t5_ll_sc_bug=on -Dmips -DMIPSEB 
> -D_MIPSEB -TENV:PIC -D_PIC -D__DSO__ -D_LANGUAGE_FORTRAN -DLANGUAGE_FORTRAN 
> -D_LANGUAGE_FORTRAN77 -DLANGUAGE_FORTRAN77 -Dunix -Dsgi -Dhost_mips 
> -D_SGI_SOURCE -D_LONGLONG -D_SVR4_SOURCE -D__sgi -D__host_mips 
> -Amachine(mips) -D_SYSTYPE_SVR4 -D__unix -Asystem(unix) 
> -D_COMPILER_VERSION=730 -m1 -g2 -O0 -show -D__mips=4 -D_MIPS_ISA=4 
> -D_ABIN32=2 -D_MIPS_SIM=_ABIN32 -D_MIPS_FPSET=32 -D_MIPS_SZINT=32 
> -D_MIPS_SZLONG=32 -D_MIPS_SZPTR=32 -D_SIZE_INT= 32 -D_SIZE_LONG=32 
> -D_SIZE_PTR=32 -TARG:abi=n32:isa=mips4 -TARG:proc=r10000 -I/usr/include 
> -include=/usr/include -FE:cmdline=/tmp/ctmL.AAAa0BPzb -fB,/tmp/ctmB.BAAa0BPzb 
> -TENV:io_library=mips conftest.f 
>  +/usr/lib32/cmplrs/be -PHASE:c -G8 -TARG:t5_ll_sc_bug=on -TENV:PIC -m1 -g2 
> -O0 -show -TARG:abi=n32:isa=mips4 -TARG:proc=r10000 -LANG:=f77 
> -TENV:io_library=mips -fB,/tmp/ctmB.BAAa0BPzb -fo,conftest.o conftest.f 
>   as_expr=expr
>   as_me=configure
>   as_unset=unset

This is likely related to _AC_PROG_F77_V_OUTPUT (APFVO) and
AC_F77_LIBRARY_LDFLAGS (AFLL).

It is very likely that APFVO is putting this into $ac_f77_v_output,
and AFLL does

  set X $ac_f77_v_output

This seems to do funky things (like adding an envvar) if there's an
'=' somewhere in $ac_f77_v_output.  I haven't had time to see if this
is actually the case, but it seems to be so.  I have similar failures
with G77 from CVS, which on the AC_F77_WRAPPERS test, puts a line
looking like:

  ... cat state-env.after
  [snip]
  +Configured with: ../../configure --prefix=/home/grad04/harinath 
--exec-prefix=/home/grad04/harinath/linux --enable-threads=posix 
--enable-shared --enable-languages=c,c++,f77,objc,java --enable-libstdcxx-v3

And if you look at the output of 'g77 -v', this is the only line with
an '=' in there.

- Hari
-- 
Raja R Harinath ------------------------------ address@hidden
"When all else fails, read the instructions."      -- Cahn's Axiom
"Our policy is, when in doubt, do the right thing."   -- Roy L Ash