Marcos Douglas schrieb:
My questions are: 1. I can use Lazarus 32bits in a machine 64bits but compile a program to 64bits? 2. The make, to compile FPC, knows about if the machine is 64bits or I have to type a parameter?
I encountered many problems, in compiling 64 bit applications on a 64 bit Windows. One problem is the bad guess of fpc.exe, to build for 32 bit by default. More problems result from the tools in the fpc/bin directory, whose 32 and 64 bit versions have the same name. This discourages to have the fpc/bin directory in the PATH, in contrast to the default FPC/Lazarus installation. Finally the debugger seems to have problems with 32 and 64 bit applications (this may have changed in the meantime).
For building FPC I replace the PATH entirely by the appropriate fpc/bin directory, which contains all required tools (what is not guaranteed by the standard installation). It may be a good idea to have isolated accounts, containing the 32/64 bit installations of FPC and Lazarus.
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