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From Guenter Knauf <>
Subject Re: [PATCH Attachment 28632, Bug 51257] Build failed when cross-compiling: ./gen_test_char: cannot execute binary file
Date Mon, 23 Apr 2012 14:58:44 GMT
Hi Henrik,
Am 23.04.2012 16:33, schrieb Henrik Strand:
> Some initial thoughts on your patch:
> - Why not init CC_FOR_BUILD to $(CC) instead of cc?
because $(CC) holds the cross compiler (host) and not the build 
compiler; 'cc' should work on almost all systems, and if it doesnt one 
can still overwrite it with the env var, see below.

> - Good thing with CFLAGS_FOR_BUILD but default init is missing. Default
> to CFLAGS?
no - for same reason as above: CFLAGS holds flags for host, and not for 

> - Documentation?
yes, are you up to adapt your docu patch to the new behaviour?
This is:
when cross compilation is detected then CC_FOR_BUILD will be set to 'cc' 
so that the build helper gen_test_char will be build with the build 
compiler and can then be run on the build system. You can overwrite 'cc' 
with setting the environment var CC_FOR_BUILD, f.e.:
CC_FOR_BUILD=gcc ./configure --host=...


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