Program compilation & installation fundamentals - Part I

Could you kindly address below mac 10.7 beginner questions

1. Given a program is installed - how can I know if its a i386 or x86_64 based app? I've been switching my kernel between i386 & x86_64 over the time.

2. I've installed openssl (sudo port install openssl) twice with Kernel set to i386 & x86_64 in that order. I could uninstall (sudo port uninstall openssl) but I could still 'which openssl' pointing to /usr/bin/openssl. When I do sudo uninstall openssl - I get error missing bundle.
How can I properly uninstall it?

~rider
deluxerndAsked:
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fridomConnect With a Mentor CEO/ProgrammerCommented:
In a Terminal type:
1)
file theApplicationYouLikeToKnowWhatItIs

Open in new window


2) is this just a dangling sym link? That means can you run it or  will you get an error while trying to run it?
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ahoffmannConnect With a Mentor Commented:
> How can I properly uninstall it?
the port system uses it's own database about what is installed
so if you issue
   sudo port uninstall openssl
then it should uninstall what is installed

do you still have openssl? if so, what's the problem with it?
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deluxerndAuthor Commented:
fridom: Sorry I don't understand your question about dangling symlink. I had to install that to enable openssl in ffmpeg project. I can run openssl w/o problems.
ahoffmann: I don't have specific problem with that openssl, I want to install it from source and statically link it to a compilation
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deluxerndAuthor Commented:
Experts could you please answer the part 2 of these questions

http://www.experts-exchange.com/Apple/Operating_Systems/OS_X/Q_27673302.html
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ahoffmannCommented:
installing from from source should be pretty simple:
  1. download and unpack the source
  2. run configure script
  3. optionally adapt Makefile
  4. make && make test
  5. sudo make install

after installation you can use the libraries in your other project
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deluxerndAuthor Commented:
Experts could you please point me any good resources around compilation and installation. Also Please answer part 3, I will provide the link shortly
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fridomCEO/ProgrammerCommented:
I propose you install XCode  and see the documentation first. There is a lot of information in the docs. So why not use  them?
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deluxerndAuthor Commented:
experts could you please answer part 3 of the question series

http://www.experts-exchange.com/Apple/Operating_Systems/OS_X/Q_27702786.html
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deluxerndAuthor Commented:
experts could you please answer the related question

http://www.experts-exchange.com/Apple/Operating_Systems/OS_X/Q_27710974.html
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