BUILDBOT: Supply legacy library files for toolchains to make them work.

This is a rather ugly workaround for toolchains built with older Debian
versions. Since bootstrapping some of these toolchains is either undocumented
or not trivial (i.e. newer PSP toolchains fail to produce working binaries) we
work around this by supplying old library versions manually.

config/master.cfg

@@ -674,6 +674,10 @@ scumm_env_psp["CXX"] = "ccache psp-g++"
 scumm_env_psp["CXXFLAGS"] = "-isystem %s/include" % scumm_root_psp
 scumm_env_psp["LDFLAGS"] = "-L%s/lib" % scumm_root_psp
 scumm_env_psp["PSPDEV"] = scumm_root_psp
+# HACK: The toolchain was built using libraries not available in recent Debian
+# releases. We keep a copy of the old libraries around and use LD_LIBRARY_PATH
+# to have ld.so find them.
+scumm_env_psp["LD_LIBRARY_PATH"] = "/opt/toolchains/legacy-shared-objects"
 
 p_master = {
 	"configureargs": [
@@ -839,6 +843,10 @@ scumm_env_wince["PATH"] = "%s/bin:%s" % (scumm_root_wince, DEFAULT_PATH)
 scumm_env_wince["CXX"] = "ccache arm-mingw32ce-g++"
 scumm_env_wince["CXXFLAGS"] = "-isystem %s/arm-mingw32ce/include -I%s/libraries/include -I%s/libraries/include/SDL" % (scumm_root_wince, scumm_root_wince, scumm_root_wince)
 scumm_env_wince["LDFLAGS"] = "-L%s/arm-mingw32ce/lib -L%s/libraries/lib" % (scumm_root_wince, scumm_root_wince)
+# HACK: The toolchain was built using libraries not available in recent Debian
+# releases. We keep a copy of the old libraries around and use LD_LIBRARY_PATH
+# to have ld.so find them.
+scumm_env_wince["LD_LIBRARY_PATH"] = "/opt/toolchains/legacy-shared-objects"
 
 p = {
 	"configureargs": [
@@ -933,6 +941,10 @@ scumm_env_n64 = copy.deepcopy(scumm_env)
 scumm_env_n64["PATH"] = "%s/bin:%s" % (scumm_root_n64, DEFAULT_PATH)
 scumm_env_n64["CXX"] = "ccache mips64-g++"
 scumm_env_n64["N64SDK"] = "/opt/toolchains/mips64-n64"
+# HACK: The toolchain was built using libraries not available in recent Debian
+# releases. We keep a copy of the old libraries around and use LD_LIBRARY_PATH
+# to have ld.so find them.
+scumm_env_n64["LD_LIBRARY_PATH"] = "/opt/toolchains/legacy-shared-objects"
 
 p = {
 	"configureargs": [
@@ -955,6 +967,10 @@ scumm_root_dingux = "/opt/toolchains/dingux-mipsel"
 scumm_env_dingux = copy.deepcopy(scumm_env)
 scumm_env_dingux["PATH"] = "%s/usr/bin:%s" % (scumm_root_dingux, DEFAULT_PATH)
 scumm_env_dingux["CXX"] = "ccache mipsel-linux-g++"
+# HACK: The toolchain was built using libraries not available in recent Debian
+# releases. We keep a copy of the old libraries around and use LD_LIBRARY_PATH
+# to have ld.so find them.
+scumm_env_dingux["LD_LIBRARY_PATH"] = "/opt/toolchains/legacy-shared-objects"
 
 p = {
 	"configureargs": [
@@ -980,6 +996,10 @@ scumm_root_openpandora = "/opt/toolchains/arm-angstrom-openpandora"
 scumm_env_openpandora = copy.deepcopy(scumm_env)
 scumm_env_openpandora["PATH"] = "%s/bin:%s" % (scumm_root_openpandora, DEFAULT_PATH)
 scumm_env_openpandora["CXX"] = "ccache arm-angstrom-linux-gnueabi-g++"
+# HACK: The toolchain was built using libraries not available in recent Debian
+# releases. We keep a copy of the old libraries around and use LD_LIBRARY_PATH
+# to have ld.so find them.
+scumm_env_openpandora["LD_LIBRARY_PATH"] = "/opt/toolchains/legacy-shared-objects"
 
 p = {
 	"configureargs": [