On 03/07/2011 04:42 AM, ?????? wrote: > Hi, guys. > I'm new to Autoconf. > Recently I wrote an very, very simple example of using autotools. The example > worked OK(all worked OK, including generated Makefiles). But when I added > macro AC_CHECK_HEADERS([...]) and it went well to generate configure shell > script. > So I ran ./configure, it's OK! Still I checked config.log, and found there is > an error showing: > "error: ac_nonexistent.h, no such file or directory." > ... > "Compilation terminated." > Fortunately that is the only error which appeared several times in the > config.log file.
That's a _good_ thing. We _expect_ that compilation error, to prove that we are correctly detecting how your compiler detects and rejects broken source code that refers to a non-existent header (knowing how the compiler detects missing headers is essential for later tests of AC_CHECK_HEADERS to see which headers are present). Not all failed compilations are bugs. -- Eric Blake [email protected] +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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