Developer Tools

Install the following tools:

• Git 2.7+
• GCC 7.1+ or Clang
• CMake 3.12+

Git

You can install git as follows: sudo pkg install git

CMake

You can install cmake as follows: sudo pkg install cmake Before version 3.10.0, you will need to modify /usr/local/share/cmake/Modules/FindPkgConfig.cmake as follows

         endif()
       endif()
+      if(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" AND NOT CMAKE_CROSSCOMPILING)
+        list(APPEND _lib_dirs "libdata/pkgconfig")
+      endif()
       list(APPEND _lib_dirs "lib/pkgconfig")
       list(APPEND _lib_dirs "share/pkgconfig")

gcc

You can install gcc7 as follows sudo pkg install gcc7-devel

You will need to set environment variables as follows (for sh, bash, zsh):

CC=gcc7; export CC
CXX=g++7; export CXX
CPP=c++7; export CPP
CXXFLAGS=-std=gnu++17; export CXXFLAGS

Libraries

Install the following libraries:

• cspice (compile, install by yourself, and rename cspice.a and csupport.a to libcspice.a and libcsupport.a for convenience.)
• libGL (sudo pkg install libGL)
• GLEW (sudo pkg install glew)
• Freeimage (sudo pkg install freeimage)
• libsysinfo (sudo pkg install libsysinfo)
• libinotify (sudo pkg install libinotify)
• GDAL (sudo pkg install gdal)

Some other libraries will be needed….

Compilation

remove minizip line in assimp/CMakeLists.txt.

To avoid linking issues of minizip, remove next line

use_pkgconfig(UNZIP minizip)

in ext/ghoul/ext/assimp/CMakeLists.txt.

Background

use_pkgconfig macro defined in cmake-modules/FindPkgMacros.cmake doesn’t work for FreeBSD at now. FindPkgMacros.cmake depends on FindPkgConfig.cmake that is contained in cmake distribution, and it doesn’t work for FreeBSD because FreeBSD’s pkgconfig dir is ${PREFIX}/libdata/pkgconfig that is different with usual one. This directory structure is not considered by FindPkgCOnfig.cmake. Thiis issue will be fixed if merge-request is accepted: Merge request !1108 on gitlab at kitware