64 bit compiling

Steve West steve at cyglan.com
Wed Nov 12 15:20:01 UTC 2008


When running on Fedora x86 64 bit do you need to specify -m64 in gcc to create 64 bit applications or does it default to 64 bit compile & link? Also will applications compiled on Fedora x86 32 bit using -m64 run on Fedora x86 64 bit?

Steve
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