build: link with lld if available

Change-Id: Iaf1e7110e629fa1fa16bbd8b8cc1418fafd2408b

.jenkins.d/00-deps.sh

@@ -39,6 +39,6 @@ elif [[ $ID_LIKE == *debian* ]]; then
     fi
 
 elif [[ $ID_LIKE == *fedora* ]]; then
-    sudo dnf -y install gcc-c++ libasan pkgconf-pkg-config python3 \
+    sudo dnf -y install gcc-c++ libasan lld pkgconf-pkg-config python3 \
                         boost-devel openssl-devel sqlite-devel
 fi

.waf-tools/default-compiler-flags.py

@@ -137,9 +137,7 @@ class GccBasicFlags(CompilerFlags):
     def getGeneralFlags(self, conf):
         flags = super(GccBasicFlags, self).getGeneralFlags(conf)
         flags['CXXFLAGS'] += ['-std=c++14']
-        if Utils.unversioned_sys_platform() == 'linux':
-            flags['LINKFLAGS'] += ['-fuse-ld=gold']
-        elif Utils.unversioned_sys_platform() == 'freebsd':
+        if Utils.unversioned_sys_platform() != 'darwin':
             flags['LINKFLAGS'] += ['-fuse-ld=lld']
         return flags
 

docs/INSTALL.rst

@@ -23,7 +23,7 @@ supported:
 - Fedora >= 29
 - Gentoo Linux
 - Raspberry Pi OS (formerly Raspbian) >= 2019-06-20
-- FreeBSD >= 12.0
+- FreeBSD >= 12.2
 
 Prerequisites
 -------------
@@ -123,7 +123,7 @@ The following lists the steps to install these prerequisites on various common p
 
   .. code-block:: sh
 
-    sudo pkg install doxygen graphviz py37-sphinx
+    sudo pkg install doxygen graphviz py39-sphinx
 
 Build
 -----