+
+# This procedure provides an interface to check the LLVMGCC_LANGS makefile
+# variable to see if llvm-gcc supports compilation of a particular language.
+proc llvm_gcc_supports { lang } {
+ global llvmgcc llvmgcc_langs
+ # validate the language choices and determine the name of the compiler
+ # component responsible for determining if the compiler has been built.
+ switch "$lang" {
+ ada { set file gnat1 }
+ c { set file cc1 }
+ c++ { set file cc1plus }
+ objc { set file cc1 }
+ objc++ { set file cc1 }
+ fortran { set file fcc1 }
+ default { return 0 }
+ }
+ foreach supported_lang [split "$llvmgcc_langs" ,] {
+ if { "$lang" == "$supported_lang" } {
+ # FIXME: Knowing it is configured is not enough. We should do two more
+ # checks here. First, we need to run llvm-gcc -print-prog-name=$file to
+ # get the path to the compiler. If we don't get a path, the language isn't
+ # properly configured or built. If we do get a path, we should check to
+ # make sure that it is executable and perhaps even try executing it.
+ return 1;
+ }
+ }
+ return 0;
+}
+
+# This procedure provides an interface to check the TARGETS_TO_BUILD makefile
+# variable to see if a particular target has been configured to build. This
+# helps avoid running tests for targets that aren't available.
+proc llvm_supports_target { tgtName } {
+ global TARGETS_TO_BUILD
+ foreach target [split $TARGETS_TO_BUILD] {
+ if { [regexp $tgtName $target match] } {
+ return 1
+ }
+ }
+ return 0
+}