Adds incomplete FreeBSD support to Premake scripts.

Properly detects amd64 system architecture on FreeBSD.
Adds support for WX_CONFIG variable (works just like SDL_CONFIG).
Adds bsd_names for BSD-specific library names.

This was SVN commit r10981.

build/premake/extern_libs4.lua

@@ -109,6 +109,8 @@ local function add_default_links(def)
 		names = def.linux_names
 	elseif os.is("macosx") and def.osx_names then
 		names = def.osx_names
+	elseif os.is("bsd") and def.bsd_names then
+		names = def.bsd_names
 	elseif def.unix_names then
 		names = def.unix_names
 	end
@@ -188,7 +190,9 @@ end
 --      * win_names: table of import library / DLL names (no extension) when
 --   	  running on Windows.
 --      * unix_names: as above; shared object names when running on non-Windows.
---      * osx_names: as above; for OS X specificall (overrides unix_names if both are
+--      * osx_names: as above; for OS X specifically (overrides unix_names if both are
+--        specified)
+--      * bsd_names: as above; for BSD specifically (overrides unix_names if both are
 --        specified)
 --      * linux_names: ditto for Linux (overrides unix_names if both given)
 --      * dbg_suffix: changes the debug suffix from the above default.
@@ -213,6 +217,7 @@ extern_lib_defs = {
 			add_default_links({
 				unix_names = { "boost_signals-mt", "boost_filesystem-mt", "boost_system-mt" },
 				osx_names = { "boost_signals-mt", "boost_filesystem-mt", "boost_system-mt" },
+				bsd_names = { "boost_signals", "boost_filesystem", "boost_system" },
 			})
 		end,
 	},
@@ -524,7 +529,14 @@ extern_lib_defs = {
 				includedirs { libraries_dir.."wxwidgets/include/msvc" }
 				add_default_include_paths("wxwidgets")
 			else
-				pkgconfig_cflags(nil, "wx-config --unicode=yes --cxxflags")
+
+				-- Support WX_CONFIG for overriding for the default PATH-based wx-config
+				wx_config_path = os.getenv("WX_CONFIG")
+				if not wx_config_path then
+					wx_config_path = "wx-config"
+				end
+
+				pkgconfig_cflags(nil, wx_config_path.." --unicode=yes --cxxflags")
 			end
 		end,
 		link_settings = function()
@@ -536,7 +548,11 @@ extern_lib_defs = {
 					links { "wxmsw28u_gl" }
 				configuration { }
 			else
-				pkgconfig_libs(nil, "wx-config --unicode=yes --libs std,gl")
+				wx_config_path = os.getenv("WX_CONFIG")
+				if not wx_config_path then
+					wx_config_path = "wx-config"
+				end
+				pkgconfig_libs(nil, wx_config_path.." --unicode=yes --libs std,gl")
 			end
 		end,
 	},

build/premake/premake4.lua

@@ -32,14 +32,14 @@ elseif os.is("windows") then
 	end
 else
 	arch = os.getenv("HOSTTYPE")
-	if arch == "x86_64" then
+	if arch == "x86_64" or arch == "amd64" then
 		arch = "amd64"
 	else
 		os.execute("gcc -dumpmachine > .gccmachine.tmp")
 		local f = io.open(".gccmachine.tmp", "r")
 		local machine = f:read("*line")
 		f:close()
-		if string.find(machine, "x86_64") == 1 then
+		if string.find(machine, "x86_64") == 1 or string.find(machine, "amd64") == 1 then
 			arch = "amd64"
 		elseif string.find(machine, "i.86") == 1 then
 			arch = "x86"
@@ -237,7 +237,7 @@ function project_set_build_flags()
 				buildoptions { "-Wno-psabi" }
 			end
 
-			if os.is("linux") then
+			if os.is("linux") or os.is("bsd") then
 				linkoptions { "-Wl,--no-undefined", "-Wl,--as-needed" }
 			end
 
@@ -284,15 +284,20 @@ function project_set_build_flags()
 			defines { "INSTALLED_LIBDIR=" .. _OPTIONS["libdir"] }
 		end
 
-		if os.is("linux") then
+		if os.is("linux") or os.is("bsd") then
 			-- To use our local SpiderMonkey library, it needs to be part of the
 			-- runtime dynamic linker path. Add it with -rpath to make sure it gets found.
 			if _OPTIONS["libdir"] then
-				linkoptions {"-Wl,-rpath=" .. _OPTIONS["libdir"] }
+				linkoptions {"-Wl,-rpath," .. _OPTIONS["libdir"] }
 			else
+				-- On FreeBSD we need to allow use of $ORIGIN
+				if os.is("bsd") then
+					linkoptions { "-Wl,-z,origin" }
+				end
+
 				-- Adding the executable path and taking care of correct escaping
 				if _ACTION == "gmake" then
-					linkoptions { "-Wl,-rpath='$$ORIGIN'" } 
+					linkoptions { "-Wl,-rpath,'$$ORIGIN'" } 
 				elseif _ACTION == "codeblocks" then
 					linkoptions { "-Wl,-R\\\\$$ORIGIN" }				
 				end
@@ -747,6 +752,25 @@ function setup_main_exe ()
 			linkoptions { "-rdynamic" }
 		configuration { }
 
+	elseif os.is("bsd") then
+
+		-- Libraries
+		links {
+			"fam",
+			"execinfo",
+			-- Utilities
+			"rt",
+		}
+
+		-- Threading support
+		buildoptions { "-pthread" }
+		linkoptions { "-pthread" }
+
+		-- For debug_resolve_symbol
+		configuration "Debug"
+			linkoptions { "-rdynamic" }
+		configuration { }
+
 	elseif os.is("macosx") then
 		links { "pthread" }
 	end
@@ -786,7 +810,7 @@ function setup_atlas_project(project_name, target_type, rel_source_dirs, rel_inc
 		-- required to use WinMain() on Windows, otherwise will default to main()
 		flags { "WinMain" }
 
-	elseif os.is("linux") then
+	elseif os.is("linux") or os.is("bsd") then
 		buildoptions { "-rdynamic", "-fPIC" }
 		linkoptions { "-fPIC", "-rdynamic" }
 	end
@@ -958,6 +982,14 @@ function setup_collada_project(project_name, target_type, rel_source_dirs, rel_i
 		buildoptions { "-rdynamic" }
 		linkoptions { "-rdynamic" }
 
+	elseif os.is("bsd") then
+		-- define BSD-something?
+
+		buildoptions { "-fno-strict-aliasing" }
+
+		buildoptions { "-rdynamic" }
+		linkoptions { "-rdynamic" }
+
 	elseif os.is("macosx") then
 		-- define MACOS-something?
 
@@ -1102,16 +1134,21 @@ function setup_tests()
 
 		project_add_manifest()
 
-	elseif os.is("linux") then
+	elseif os.is("linux") or os.is ("bsd") then
 
 		links {
 			"fam",
 			-- Utilities
 			"rt",
-			-- Dynamic libraries (needed for linking for gold)
-			"dl",
 		}
 
+		if os.is("linux") then
+			links {
+				-- Dynamic libraries (needed for linking for gold)
+				"dl",
+			}
+		end
+
 		-- Threading support
 		buildoptions { "-pthread" }
 		linkoptions { "-pthread" }