Hello Guillaume Rousse, On Saturday 03 November 2001 09:16, you wrote: >> I have some question regarding the --enable-x86opt switch for building >> binary packages. Actually, i build on Athlon, without specfiying any value >> for it. I guess it is disabled, as no one ever complained about problems. >> Now, i would like to enable only MMX, as it is reasonably supported by >> modern computers. However, i suspect using --enable-x86opt would use also >> all other optimisations available on build host, such as 3DNow, MMX2, etc, >> thus breaking compatibility. Am i right ?
By default x86-opt switch is enabled and turned off if configure detects that build host is e.g. 486 or even non-x86, or if you have too old gcc. It is safe to build packages with this switch on, because there'll be additional check for CPU features at run-time. 3DNow optimized parts of code won't be used if 3DNow support is not found, etc. -- Best regards, Eugene _______________________________________________ Avifile mailing list [EMAIL PROTECTED] http://prak.org/mailman/listinfo/avifile
