gnat: init at 9.3.0

pkgs/development/compilers/gcc/common/configure-flags.nix

@@ -16,6 +16,7 @@
 , langCC
 , langFortran
 , langJava ? false, javaAwtGtk ? false, javaAntlr ? null, javaEcj ? null
+, langAda ? false
 , langGo
 , langObjC
 , langObjCpp
@@ -115,6 +116,7 @@ let
           ++ lib.optional langCC       "c++"
           ++ lib.optional langFortran  "fortran"
           ++ lib.optional langJava     "java"
+          ++ lib.optional langAda      "ada"
           ++ lib.optional langGo       "go"
           ++ lib.optional langObjC     "objc"
           ++ lib.optional langObjCpp   "obj-c++"
@@ -140,6 +142,9 @@ let
       "--enable-cloog-backend=isl"
     ]
 
+    # Ada options
+    ++ lib.optional langAda "--enable-libada"
+
     # Java options
     ++ lib.optionals langJava [
       "--with-ecj-jar=${javaEcj}"

pkgs/development/compilers/gcc/common/pre-configure.nix

@@ -1,6 +1,11 @@
-{ lib, version, hostPlatform, langJava ? false, langGo }:
+{ lib, version, hostPlatform
+, gnatboot ? null
+, langAda ? false
+, langJava ? false
+, langGo }:
 
 assert langJava -> lib.versionOlder version "7";
+assert langAda -> gnatboot != null;
 
 lib.optionalString (hostPlatform.isSunOS && hostPlatform.is64bit) ''
   export NIX_LDFLAGS=`echo $NIX_LDFLAGS | sed -e s~$prefix/lib~$prefix/lib/amd64~g`
@@ -9,4 +14,6 @@ lib.optionalString (hostPlatform.isSunOS && hostPlatform.is64bit) ''
   export CFLAGS_FOR_TARGET="-Wl,-rpath,$prefix/lib/amd64 $CFLAGS_FOR_TARGET"
 '' + lib.optionalString (lib.versionOlder version "7" && (langJava || langGo)) ''
   export lib=$out;
+'' + lib.optionalString langAda ''
+  export PATH=${gnatboot}/bin:$PATH
 ''