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~ building potion ~

Normally

$ make

To build with debugging symbols

$ make DEBUG=1

To build without JIT

$ make JIT=0

Lastly, to verify your build

$ make test

On a typical GNU make < 4.0 sometimes the test/classes/creatures/ fails. Try make -j1 test or gmake-4.0 then.

~ the latest potion ~

To build the bleeding edge, you will need GNU make, binutils, perl, sed, git and gcc or better clang. clang produces better code than gcc, but is harder to debug. gcc-4.6.3 is broken, at least on ubuntu.

$ git clone git://github.com/perl11/potion.git
$ cd potion
$ git submodule update --init
$ make

~ external dependencies ~

build-time: gnu make, perl, sed, gcc or clang, echo, cat, expr, git
perl is only needed because of BSD/darwin sed problems

run-time:
libuv (later: pcre, libtomath) is included, but external
packagers should choose to use existing packages. see `dist.mak`

optional:

libudis on x86 (debugging only)
  http://udis86.sourceforge.net/ x86 16,32,64 bit
  port install udis86

libdistorm64 on x86 (debugging only)
  http://ragestorm.net/distorm/ x86 16,32,64 bit with all intel/amd extensions
  apt-get install libdistorm64-dev

libdisasm on i386 (debugging only)
  http://bastard.sourceforge.net/libdisasm.html 386 32bit only
  apt-get install libdisasm-dev

sloccount (for make sloc)
  apt-get install sloccount

redcloth (for make doc install)
  apt-get install ruby-redcloth, or
  port install rb-redcloth

doxygen 1.8 or 1.9 (for make doc install)
  apt-get install doxygen, or
  port install doxygen

GNU global (for make docall install)
  apt-get install global, or
  port install global

~ sandboxing ~

With gmake SANDBOX=1 a static sandboxed bin/potion-s is built, which excludes all local filesystem and process accesses and includes all external modules in one executable. load is also disabled, so modules must include all dependent libraries.

Network access is enabled via Aio. If you want to disable networking also, remove lib/aio.c from the SANDBOX SRC in Makefile, and Potion_Init_aio(P) from core/internal.c

~ installing ~

$ sudo make install

~ building on windows ~

Potion's win32 binaries are built using MinGW. http://mingw.org/

It's a bit hard to setup mingw and gmake on Windows. I usually run a shell under Cygwin and add MinGW to my $PATH.

Once that's all done,

$ make

The easiest way to do this, actually, is on Linux or Darwin. On Ubuntu, if you have MinGW installed,

$ make clean; make core/syntax.c
$ make config CC=i686-w64-mingw32-gcc CROSS=1
$ touch core/syntax.c
$ make && make dist

This will first create a native greg and core/syntax.c, sets CROSS=1 and cross-compile with the given CC. See tools/mk-release.sh

make test will not work, you need to copy a make dist tarball to the machine and test it there.

win64 is not supported yet. It uses a slighlty different ABI, cygwin64 misses pthread_barrier_t. and x86_64-w64-mingw32-gcc fails by creating a wrong config.h

~ building on bsd ~

BSD make is not supported. You can either install gnu make (gmake)

$ sudo port install gmake

or try ./configure which creates a special BSD config.mk

or try to merge master with the branch bsd

$ git merge bsd
... resolve conflicts, or not

~ building with a strict C++ compiler ~

potion does not support strict C++ compilers. If you have no modern C compiler:

Either add a C dialect to CC in config.inc (i.e. -std=c89),

g++ --help=C; clang++ -x C -std=gnu89

or try to merge with the branch p2-c++.

~ creating documentation ~

This is required for make dist and release admins. You'll need:

redcloth to convert .textile to html,
doxygen (1.8 or 1.9), and
GNU global for gtags and htags

On windows et al.: gem install RedCloth

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