[PPL-devel] Re: conftest.cc disappearing in a misterious way

[Ralf Wildenhues]

* Roberto Bagnara wrote on Wed, Jul 06, 2005 at 11:32:23AM CEST:
> 
> 1) tests are made for signal.h usability and presence:
>    these are both successful;
> 2) immediately after, a test for sys/time.h presence
>    failes because "g++: conftest.cc: No such file or directory".
>    This is strange, because conftest.cc should have been created
>    by the configure script.
> 3) The test for sys/time.h usability succeeds!
> 4) Both tests for sys/resource.h presence and usability fail for
>    the same reason: "g++: conftest.cc: No such file or directory".

Please post (a reference to or contents of) lines 29550 to 29700 of the
configure script.

Unless you did some copy and paste error, there is something fishy going
on here:

> configure:29564: checking signal.h usability
            ^^^^^
> configure:29576: g++ -c  -g -O2  conftest.cc >&5
> configure:29582: $? = 0
> configure:29586: test -z
> 			 || test ! -s conftest.err
> configure:29589: $? = 0
> configure:29592: test -s conftest.o
> configure:29595: $? = 0
> configure:29605: result: yes
> configure:29609: checking signal.h presence
> configure:29619: g++ -E  conftest.cc
> configure:29625: $? = 0
> configure:29645: result: yes
> configure:29680: checking for signal.h
> configure:29687: result: yes
> configure:29564: checking sys/time.h usability
            ^^^^^

this should be larger than 29687.
Somehow it jumps back?

> configure:29576: g++ -c  -g -O2  conftest.cc >&5
> configure:29582: $? = 0
> configure:29586: test -z
> 			 || test ! -s conftest.err
> configure:29589: $? = 0
> configure:29592: test -s conftest.o
> configure:29595: $? = 0
> configure:29605: result: yes
> configure:29609: checking sys/time.h presence
> configure:29619: g++ -E  conftest.cc
> g++: conftest.cc: No such file or directory
> g++: no input files
> configure:29625: $? = 1
> configure: failed program was:
> configure:29645: result: no
> configure:29651: WARNING: sys/time.h: accepted by the compiler, rejected by 
> the preprocessor!
> configure:29653: WARNING: sys/time.h: proceeding with the compiler's result
> configure:29680: checking for sys/time.h
> configure:29687: result: yes
> configure:29564: checking sys/resource.h usability
> configure:29576: g++ -c  -g -O2  conftest.cc >&5
> g++: conftest.cc: No such file or directory
> g++: no input files
> configure:29582: $? = 1
> configure: failed program was:
> configure:29605: result: no
> configure:29609: checking sys/resource.h presence
> configure:29619: g++ -E  conftest.cc
> g++: conftest.cc: No such file or directory
> g++: no input files
> configure:29625: $? = 1
> configure: failed program was:
> configure:29645: result: no
> configure:29680: checking for sys/resource.h
> configure:29687: result: no
> configure:29555: checking for sys/time.h
> configure:29560: result: yes
> configure:29555: checking for sys/types.h
> configure:29560: result: yes
> configure:29555: checking for unistd.h
> configure:29560: result: yes
> 
> I have googled for around one hour and I have seen that many people
> had this problem in the past (just replace "conftest.cc" with "conftest.c"
> in the search), but noone seems to have found the cause.
*snip*

Regards,
Ralf