[PATCH RESEND] configure: escape square brackets.

[Benjamin Kramer]

Can someone please apply this patch? It's an obvious mistake in gmp's  
autoconf file that breaks the build with clang.

Am 08.10.2009 um 16:59 schrieb Benjamin Kramer:

> M4 eats the [] from char *argv[] in the autoconf check "whether  
> build system compiler is ANSI". clang does not like the mutilated  
> function prototype and complains:
>
> conftest.c:1:5: error: second argument of 'main' should be of type  
> 'char **'
> int main (int argc, char *argv) { exit(0); }
>    ^
>
> configure detects clang as a non-ANSI-compliant compiler and the  
> compilation process fails later on. The attached patch fixes this by  
> escaping the [] with an extra pair of square brackets.


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