makepanda: changes for FreeBSD. Add instructions, and:

 - change package name from Panda3D to panda3d
 - change default compiler to clang on FreeBSD
 - fix ldconfig to point to panda3d lib dir

[skip ci]

README.md

@@ -134,6 +134,28 @@ If the build was successful, makepanda will have generated a .dmg file in
 the source directory containing the installer.  Simply open it and run the
 package file in order to install the SDK onto your system.
 
+FreeBSD
+-------
+
+Building on FreeBSD is very similar to building on Linux.  You will need to
+install the requisite packages using the system package manager.  To install
+the recommended set of dependencies, you can use this command:
+
+```bash
+pkg install pkgconf png jpeg-turbo tiff freetype2 eigen squish openal opusfile libvorbis libX11 libGL ode bullet assimp openexr
+```
+
+You will also need to choose which version of Python you want to use.
+Install the appropriate package for it (such as `python2` or `python36`) and
+run the makepanda script with your chosen Python version:
+
+```bash
+python3.6 makepanda/makepanda.py --everything --installer --no-egl --no-gles --no-gles2
+```
+
+If successful, this will produce a .pkg file in the root of the source
+directory which you can install using `pkg install`.
+
 Reporting Issues
 ================
 

makepanda/makepanda.py

@@ -6879,7 +6879,7 @@ Panda3D's intended game-development language is Python. The engine itself is wri
 
 This package contains the SDK for development with Panda3D, install panda3d-runtime for the runtime files.
 
-WWW: http://www.panda3d.org/
+WWW: https://www.panda3d.org/
 """
 
 # FreeBSD pkg-descr
@@ -6888,7 +6888,7 @@ Runtime binary and browser plugin for the Panda3D Game Engine
 
 This package contains the runtime distribution and browser plugin of the Panda3D engine. It allows you view webpages that contain Panda3D content and to run games created with Panda3D that are packaged as .p3d file.
 
-WWW: http://www.panda3d.org/
+WWW: https://www.panda3d.org/
 """
 
 # FreeBSD PKG Manifest template file
@@ -6897,8 +6897,8 @@ name: NAME
 version: VERSION
 arch: ARCH
 origin: ORIGIN
-comment: "Panda 3D Engine"
-www: http://www.panda3d.org
+comment: "Panda3D free 3D engine SDK"
+www: https://www.panda3d.org
 maintainer: rdb <[email protected]>
 prefix: /usr/local
 flatsize: INSTSIZEMB
@@ -7290,7 +7290,7 @@ def MakeInstallerFreeBSD():
             plist_txt += os.path.join(root, f)[21:] + "\n"
 
     if not RUNTIME:
-        plist_txt += "@postexec /sbin/ldconfig -m /usr/local/lib\n"
+        plist_txt += "@postexec /sbin/ldconfig -m /usr/local/lib/panda3d\n"
         plist_txt += "@postunexec /sbin/ldconfig -R\n"
 
         for remdir in ("lib/panda3d", "share/panda3d", "include/panda3d"):
@@ -7312,7 +7312,7 @@ def MakeInstallerFreeBSD():
             if python_pkg:
                 dependencies += python_pkg
 
-    manifest_txt = INSTALLER_PKG_MANIFEST_FILE[1:].replace("NAME", 'Panda3D' if not RUNTIME else 'Panda3D-Runtime')
+    manifest_txt = INSTALLER_PKG_MANIFEST_FILE[1:].replace("NAME", 'panda3d' if not RUNTIME else 'panda3d-runtime')
     manifest_txt = manifest_txt.replace("VERSION", VERSION)
     manifest_txt = manifest_txt.replace("ARCH", pkg_arch)
     manifest_txt = manifest_txt.replace("ORIGIN", 'devel/panda3d' if not RUNTIME else 'graphics/panda3d-runtime')

makepanda/makepandacore.py

@@ -397,13 +397,13 @@ def CrossCompiling():
     return GetTarget() != GetHost()
 
 def GetCC():
-    if TARGET == 'darwin':
+    if TARGET == 'darwin' or TARGET == 'freebsd':
         return os.environ.get('CC', TOOLCHAIN_PREFIX + 'clang')
     else:
         return os.environ.get('CC', TOOLCHAIN_PREFIX + 'gcc')
 
 def GetCXX():
-    if TARGET == 'darwin':
+    if TARGET == 'darwin' or TARGET == 'freebsd':
         return os.environ.get('CXX', TOOLCHAIN_PREFIX + 'clang++')
     else:
         return os.environ.get('CXX', TOOLCHAIN_PREFIX + 'g++')