Avoid running ./configure every time?

[Doug Evans]

FAlexandros Karypidis writes:
 > Have I understood correctly?

Not quite.

Example.
Suppose your _one_ copy of the entire source tree lives in /home/foo/src.

Do the following:

cd /home/foo
mkdir build-x86
mkdir build-arm
cd build-x86
../src/configure --prefix /mumble --target <some-x86-target>
make
cd ../build-arm
../src/configure --prefix /mumble --target <some-arm-target>
make

i.e. you have one source tree and two build trees,
and both build trees are in separate directories from the source tree.
s.o.p. (standard operating procedure)

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