Configure not detecting compiler.

[zackp30]

On attempting to compile latest git version:
Output of ./configure:

checking for i686-unknown-linux-gnu-clang... gcc -m32  
checking for C compiler default output file name... configure: error: C compiler cannot create executables

Output is the same with --disable-clang.

Output of uname -a:

Linux matrix 3.2.0-57-generic #87-Ubuntu SMP Tue Nov 12 21:35:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

[alexcrichton]

Have you tried compiling a simple program to make sure it works? Something like gcc -m32 foo.c && ./a.out

[zackp30]

-m32 does not work, complains about
/usr/include/features.h:324:26: fatal error: bits/predefs.h: No such file
or directory
however, without the -m32 switch it works fine.

Have you tried compiling a simple program to make sure it works? Something
like gcc -m32 foo.c && ./a.out

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[alexcrichton]

Closing, it sounds like you need to install the 32-bit compiler libraries and headers for your system. I think that on ubuntu you can find this in the gcc-multilib package.

You can also not configure a cross compiler by just running ./configure with no extra --target or --host flags.