How to build an OpenTTD JGRPP Dedicated Server on OmniOS (Unix / Oracle Solaris / illumos)

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※ In this article, I have used OmniOS r151038 and JGRPP v0.52.0.
At the moment, r151038 is the latest LTS OmniOS release and JGRPP v0.52.0 is the latest version release.

OS Information

~$ uname -a



SunOS omnioslts 5.11 omnios-r151038-7bb369b3b5 i86pc i386 i86pc



~$ cat /etc/os-release



NAME="OmniOS"
PRETTY_NAME="OmniOS Community Edition v11 r151038cs"
CPE_NAME="cpe:/o:omniosce:omnios:11:151038:97"
ID=omnios
VERSION=r151038cs
VERSION_ID=r151038cs
BUILD_ID=151038.97.2023.03.11
HOME_URL="https://omnios.org/"
SUPPORT_URL="https://omnios.org/"
BUG_REPORT_URL="https://github.com/omniosorg/omnios-build/issues/new"

Install Requirements

~$ sudo pkg install gcc10 cmake gnu-make



설치할 패키지:   2
변경할 서비스:   1
부트 환경 만들기: 아니오
백업 부트 환경 만들기: 아니오

다운로드		패키지	파일		XFER(MB)		속도
완료됨		2/2	3199/3199	25.5/25.5		471k/s

단계					항목
새 작업 설치				3358/3358
패키지 상태 데이터베이스 업데이트		완료
패키지 캐시 업데이트			0/0
이미지 상태 업데이트			완료
빠른 조회 데이터베이스 만들기		완료
검색 색인 읽기				완료
검색 색인 업데이트			2/2
패키지 캐시 업데이트			2/2



~$ gcc --version



gcc (OmniOS 151038/10.4.0-il-1) 10.4.0
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.



~$ cmake --version



cmake version 3.25.3

CMake suite maintained and supported by Kitware (kitware.com/cmake).



~$ gmake --version



GNU Make 4.3
Built for x86_64-pc-solaris2.11
Copyright (C) 1988-2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Download and Extract JGRPP Source

~$ wget https://github.com/JGRennison/OpenTTD-patches/archive/refs/tags/jgrpp-0.52.0.tar.gz



--2023-03-24 15:02:55--  https://github.com/JGRennison/OpenTTD-patches/archive/refs/tags/jgrpp-0.52.0.tar.gz
Resolving github.com... 20.200.245.247
Connecting to github.com|20.200.245.247|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://codeload.github.com/JGRennison/OpenTTD-patches/tar.gz/refs/tags/jgrpp-0.52.0 [following]
--2023-03-24 15:02:56--  https://codeload.github.com/JGRennison/OpenTTD-patches/tar.gz/refs/tags/jgrpp-0.52.0
Resolving codeload.github.com... 20.200.245.246
Connecting to codeload.github.com|20.200.245.246|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/x-gzip]
Saving to: ‘jgrpp-0.52.0.tar.gz’

jgrpp-0.52.0.tar.gz                      [          <=>                                                         ]  11.64M  6.13MB/s    in 1.9s

2023-03-24 15:02:58 (6.13 MB/s) - ‘jgrpp-0.52.0.tar.gz’ saved [12207921]



~$ tar xzf jgrpp-0.52.0.tar.gz

Modify Source Files

Go to the source folder root.

~$ cd OpenTTD-patches-jgrpp-0.52.0

Open CMakeLists.txt with an editor and add 3 lines in target_link_libraries function located at line 313 and it should look like below.

${CMAKE_DL_LIBS}
-lsocket
-lnsl
⋮

add_dependencies(openttd
    find_version)

target_link_libraries(openttd
    openttd::languages
    openttd::settings
    openttd::media
    openttd::basesets
    openttd::script_api
    openttd::binfiles
    Threads::Threads
    ${CMAKE_DL_LIBS}
    -lsocket
    -lnsl
)

if(HAIKU)
    target_link_libraries(openttd "be" "network" "midi")
endif()

⋮

Open build-dedicated.sh with an editor and replace make at line 7 with gmake and it should look like below.

⋮
cd build
rm CMakeCache.txt
cmake .. -DOPTION_DEDICATED=true && gmake -j$(nproc 2>/dev/null || echo "1")

Open src/core/alloc_func.hpp with an editor and add 3 lines at the beginning and it should look like below.

#ifdef __sun
#include <alloca.h>
#endif
#ifdef __sun
#include <alloca.h>
#endif

/*
 * This file is part of OpenTTD.
⋮

Open src/string_func.h comment out the line at line 279 and it should look like below.

⋮

#       define DEFINE_STRCASESTR
// char *strcasestr(const char *haystack, const char *needle);
#endif /* strcasestr is available */

⋮

Open src/network/core/os_abstraction.cpp with an editor and replace SO_REUSEPORT at line 196 with SO_REUSEADDR and it should look like below.

⋮

#else
        int reuse_port = 1;
        return setsockopt(d, SOL_SOCKET, SO_REUSEADDR, &reuse_port, sizeof(reuse_port)) == 0;
#endif
}

⋮

Open src/3rdparty/randombytes/randombytes.h with an editor and replace a function randombytes line at line 19 and it should look like below.

⋮

/*
 * Write `n` bytes of high quality random bytes to `buf`
 */
int randombytes(unsigned char *buf, size_t n);

#ifdef __cplusplus
}
#endif

⋮

Open src/3rdparty/randombytes/randombytes.c with an editor and delete all contents and then fill with below.

#include "randombytes.h"
#include <fcntl.h>
#include <unistd.h>
#include <assert.h>

int randombytes(unsigned char *x, size_t xlen)
{
    int fd;
    ssize_t bytes_read;

    if (xlen == 0) return 0;
    assert(x != NULL);

    fd = open("/dev/urandom", O_RDONLY);
    if (fd == -1) {
        fd = open("/dev/random", O_RDONLY);
    }
    assert(fd != -1);

    bytes_read = read(fd, x, xlen);
    assert(bytes_read == xlen);

    close(fd);

    return 0;
}

Open src/os/unix/crashlog_unix.cpp with an editor and add a line #include <ucontext.h> right after #include <sys/mman.h> at line 25 and it should look like below.

⋮
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/mman.h>
#include <ucontext.h>

#if defined(WITH_DBG_GDB)
#include <sys/syscall.h>
#endif /* WITH_DBG_GDB */

⋮

And in the same file, replace two gregs[REG_EFL] at line 400, 418 with gregs[REG_RFL] and it should look like below.

⋮
                        gregs[REG_R14],
                        gregs[REG_R15],
                        gregs[REG_RIP],
                        gregs[REG_RFL]
                );
#elif defined(__i386)
                const gregset_t &gregs = ucontext->uc_mcontext.gregs;
                buffer += seprintf(buffer, last,
⋮
                        gregs[REG_EBP],
                        gregs[REG_ESP],
                        gregs[REG_EIP],
                        gregs[REG_RFL]
                );
#endif
#endif
⋮

Build

~$ ./build-dedicated.sh

Download and extract Base Graphics

~$ wget https://cdn.openttd.org/opengfx-releases/7.1/opengfx-7.1-all.zip



Resolving cdn.openttd.org... 54.230.167.118, 54.230.167.93, 54.230.167.82, ...
Connecting to cdn.openttd.org|54.230.167.118|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 3547160 (3.4M) [application/zip]
Saving to: ‘opengfx-7.1-all.zip’

opengfx-7.1-all.zip                  100%[=====================================================================>]   3.38M  9.53MB/s    in 0.4s

2023-03-24 16:02:24 (9.53 MB/s) - ‘opengfx-7.1-all.zip’ saved [3547160/3547160]



~$ unzip opengfx-7.1-all.zip && mv opengfx-7.1.tar build/baseset/



Archive:  opengfx-7.1-all.zip
  inflating: opengfx-7.1.tar

Install

~$ cd build && sudo gmake install

Launch the dedicated server

~$ /usr/local/games/openttd -D

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