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I wanted to compile botan library version Botan-1.10.1 on linux for 64-bit mode. Please tell me steps for compiling the botan on linux in 64-bit mode.

Rod Xavier
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Abhishek Panse
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2 Answers2

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The build instructions for botan can be found here:

http://botan.randombit.net/manual/building.html

Basically, you need to run ./configure. In theory, it should make an educated guess as to the CPU type, so if you are building on a 64bit machine, it should automagically configure itself accordingly. If not, you can help it along by specifiying the correct cpu type with

./configure --cpu

mjs
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  • There are 5 .S files (assembly code which can be preprocessed) 1. serp_x86_32_imp.S 2. sha1_x86_64_imp.S 3. sha1_x86_32_imp.S 4. md5_x86_32_imp.S 5. md4_x86_32_imp.S From naming it can be understood that x86_32 are for 32-bit and x86_64 are for 64-bit. If I want to compile these .S files into 64-bit then I would require x86_64 files but in Botan-1.10.1 only sha1_x86_64_imp.S which is 64-bit version for sha1_x86_32_imp.S and 64-bit files for rest are not present. I have also checked in latest stable release of botan But not finding the files. So please tell me how to compile .S files on 64bit – Abhishek Panse May 23 '14 at 10:33
  • It should all be taken care of by the build system, as long as you have correctly configured using ./configure . Once you have configured, just run make. I would also search for a README file – mjs May 23 '14 at 10:36
  • No worries. Dont forget to vote and accept an answer. – mjs Jun 12 '14 at 21:44
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Botan automatically guesses your OS and architecture. However, you can set that manually if you want(For e.g., if you are targeting multiple platforms or using a script to run configure.py). To build for 64-bit you need to specify --cpu=x86_64:

python configure.py --cpu=x86_64
  • To disable certain os features use: --without-os-features=.
  • To specify compiler use: --cc= or --cc-bin=path/to/compiler
  • To get a single .h and .cpp file use: --amalgamation
  • To disable certain modules use: --disable-modules=aes, block

Further build instructions for botan can be found here or use --help to get more info:

http://botan.randombit.net/manual/building.html

Waqar
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