[Ecls-list] refactor src/aclocal.m4
Gabriel Dos Reis
gdr at cs.tamu.edu
Wed Aug 11 14:27:58 UTC 2010
Juan Jose Garcia-Ripoll <juanjose.garciaripoll at googlemail.com> writes:
| Hi Gabriel,
| thanks a lot for the refactoring. I wrote those tests at a time when I
| was not sure that they existed and did the proper job. BTW, regarding
| your previous question about stdint.h, some platforms define that
| header but they do not provide any or all useful integer types. Thus
| checking for its existence is not enough (old Solaris, for instance).
yes, I remembered the solaris case. The standard Autoconf tests for the
sized integer types do actually this:
1. they test for the existence of the headers.
2. next, they test that the typedefs are actually there.
3. If 2 fails, then they try to guess the types by running a
program similar to yours, except that they avoid possible
(mis)-optimization by compilers that assume that signed integer
overflow is undefined-behaviour.
I did not include the diff for 'configure' because I assumed that you
would recreate it yourself. The other thing I was unsure about was
whetehr you wanted to bump the required (developer) Autotools to version
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