mirror of https://github.com/dashpay/dash.git synced 2024-12-26 12:32:48 +01:00

Merge #19605 : doc: set CC_FOR_BUILD when building on OpenBSD

01cd24c22606408d5c0ac74c9a2c5d85eff77846 doc: set CC_FOR_BUILD when building on OpenBSD (fanquake)

Pull request description:

  Closes: #19559

  While #19559 has been fixed upstream, it makes sense to not only
  recommend using `CC_FOR_BUILD`here  until the fix is pulled in as
  part of our next libsecp update, but after discussing with Cory,
  he suggested we should be setting this on OpenBSD (which still has
  the an ancient GCC) regardless.

ACKs for top commit:
  real-or-random:
    ACK 01cd24c22606408d5c0ac74c9a2c5d85eff77846 I looked at the diff (but can't test the instructions on OpenBSD)
  laanwj:
    Code review ACK 01cd24c22606408d5c0ac74c9a2c5d85eff77846

Tree-SHA512: 322802b9303771f1be2ad9628f268dfa71dc7ee77948fa2a34f21eceb19b2d8efdd8876c8f0778adbfcde48fa0f88cd4e698ae425428159abca38e8c7980da1d

2024-01-19 10:34:33 -06:00

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OpenBSD build guide

(updated for OpenBSD 6.7)

This guide describes how to build dashd, dash-qt, and command-line utilities on OpenBSD.

Preparation

Run the following as root to install the base dependencies for building:

pkg_add git gmake libevent libtool
pkg_add qt5 # (optional for enabling the GUI)
pkg_add autoconf # (select highest version, e.g. 2.69)
pkg_add automake # (select highest version, e.g. 1.15)
pkg_add python # (select highest version, e.g. 3.8)
pkg_add gmp
pkg_add boost

git clone https://github.com/dashpay/dash.git

See dependencies.md for a complete overview.

Important: From OpenBSD 6.2 onwards a C++11-supporting clang compiler is part of the base image, and while building it is necessary to make sure that this compiler is used and not ancient g++ 4.2.1. This is done by appending CC=cc CC_FOR_BUILD=cc CXX=c++ to configuration commands. Mixing different compilers within the same executable will result in errors.

Building BerkeleyDB

BerkeleyDB is only necessary for the wallet functionality. To skip this, pass --disable-wallet to ./configure and skip to the next section.

It is recommended to use Berkeley DB 4.8. You cannot use the BerkeleyDB library from ports, for the same reason as boost above (g++/libstd++ incompatibility). If you have to build it yourself, you can use the installation script included in contrib/ like so:

./contrib/install_db4.sh `pwd` CC=cc CXX=c++

from the root of the repository. Then set BDB_PREFIX for the next section:

export BDB_PREFIX="$PWD/db4"

Building Dash Core

Important: Use gmake (the non-GNU make will exit with an error).

Preparation:

export AUTOCONF_VERSION=2.69 # replace this with the autoconf version that you installed
export AUTOMAKE_VERSION=1.15 # replace this with the automake version that you installed
./autogen.sh

Make sure BDB_PREFIX is set to the appropriate path from the above steps.

To configure with wallet:

./configure --with-gui=no CC=cc CXX=c++ \
    BDB_LIBS="-L${BDB_PREFIX}/lib -ldb_cxx-4.8" \
    BDB_CFLAGS="-I${BDB_PREFIX}/include" \
    MAKE=gmake

To configure without wallet:

./configure --disable-wallet --with-gui=no CC=cc CC_FOR_BUILD=cc CXX=c++ MAKE=gmake

To configure with GUI:

./configure --with-gui=yes CC=cc CXX=c++ \
    BDB_LIBS="-L${BDB_PREFIX}/lib -ldb_cxx-4.8" \
    BDB_CFLAGS="-I${BDB_PREFIX}/include" \
    MAKE=gmake

Build and run the tests:

gmake # use -jX here for parallelism
gmake check

Resource limits

If the build runs into out-of-memory errors, the instructions in this section might help.

The standard ulimit restrictions in OpenBSD are very strict:

data(kbytes)         1572864

This, unfortunately, in some cases not enough to compile some .cpp files in the project, (see issue #6658). If your user is in the staff group the limit can be raised with:

ulimit -d 3000000

The change will only affect the current shell and processes spawned by it. To make the change system-wide, change datasize-cur and datasize-max in /etc/login.conf, and reboot.

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