Add LANGUAGE pragmas to compiler/ source files

In some cases, the layout of the LANGUAGE/OPTIONS_GHC lines has been
reorganized, while following the convention, to

- place `{-# LANGUAGE #-}` pragmas at the top of the source file, before
  any `{-# OPTIONS_GHC #-}`-lines.

- Moreover, if the list of language extensions fit into a single
  `{-# LANGUAGE ... -#}`-line (shorter than 80 characters), keep it on one
  line. Otherwise split into `{-# LANGUAGE ... -#}`-lines for each
  individual language extension. In both cases, try to keep the
  enumeration alphabetically ordered.
  (The latter layout is preferable as it's more diff-friendly)

While at it, this also replaces obsolete `{-# OPTIONS ... #-}` pragma
occurences by `{-# OPTIONS_GHC ... #-}` pragmas.

14 files changed, 18 insertions, 12 deletions

diff --git a/compiler/nativeGen/SPARC/CodeGen.hs b/compiler/nativeGen/SPARC/CodeGen.hs
index 5d65b427e1..f5e61d0a8f 100644
--- a/compiler/nativeGen/SPARC/CodeGen.hs
+++ b/compiler/nativeGen/SPARC/CodeGen.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
 -----------------------------------------------------------------------------
 --
 -- Generating machine code (instruction selection)
diff --git a/compiler/nativeGen/SPARC/CodeGen/Amode.hs b/compiler/nativeGen/SPARC/CodeGen/Amode.hs
index 324eda94e7..f0aed0d02e 100644
--- a/compiler/nativeGen/SPARC/CodeGen/Amode.hs
+++ b/compiler/nativeGen/SPARC/CodeGen/Amode.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/CodeGen/Base.hs b/compiler/nativeGen/SPARC/CodeGen/Base.hs
index 03b31e016a..45b7801960 100644
--- a/compiler/nativeGen/SPARC/CodeGen/Base.hs
+++ b/compiler/nativeGen/SPARC/CodeGen/Base.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/CodeGen/CondCode.hs b/compiler/nativeGen/SPARC/CodeGen/CondCode.hs
index 375a9e1b33..2c3dbe6fc0 100644
--- a/compiler/nativeGen/SPARC/CodeGen/CondCode.hs
+++ b/compiler/nativeGen/SPARC/CodeGen/CondCode.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/CodeGen/Expand.hs b/compiler/nativeGen/SPARC/CodeGen/Expand.hs
index 03f571c20b..7ebc2f6630 100644
--- a/compiler/nativeGen/SPARC/CodeGen/Expand.hs
+++ b/compiler/nativeGen/SPARC/CodeGen/Expand.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/CodeGen/Gen32.hs b/compiler/nativeGen/SPARC/CodeGen/Gen32.hs
index df876b4622..43a26e525a 100644
--- a/compiler/nativeGen/SPARC/CodeGen/Gen32.hs
+++ b/compiler/nativeGen/SPARC/CodeGen/Gen32.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/CodeGen/Sanity.hs b/compiler/nativeGen/SPARC/CodeGen/Sanity.hs
index d4cdaf2b16..5dff9ce704 100644
--- a/compiler/nativeGen/SPARC/CodeGen/Sanity.hs
+++ b/compiler/nativeGen/SPARC/CodeGen/Sanity.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/Cond.hs b/compiler/nativeGen/SPARC/Cond.hs
index b8919a72a2..198e4a7627 100644
--- a/compiler/nativeGen/SPARC/Cond.hs
+++ b/compiler/nativeGen/SPARC/Cond.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/Imm.hs b/compiler/nativeGen/SPARC/Imm.hs
index 4c2bb5a481..844a08824b 100644
--- a/compiler/nativeGen/SPARC/Imm.hs
+++ b/compiler/nativeGen/SPARC/Imm.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/Instr.hs b/compiler/nativeGen/SPARC/Instr.hs
index 601e04787a..8e4a2b32df 100644
--- a/compiler/nativeGen/SPARC/Instr.hs
+++ b/compiler/nativeGen/SPARC/Instr.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
 -----------------------------------------------------------------------------
 --
 -- Machine-dependent assembly language
@@ -6,7 +8,7 @@
 --
 -----------------------------------------------------------------------------
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/Ppr.hs b/compiler/nativeGen/SPARC/Ppr.hs
index 601b5288a0..654179e077 100644
--- a/compiler/nativeGen/SPARC/Ppr.hs
+++ b/compiler/nativeGen/SPARC/Ppr.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
 -----------------------------------------------------------------------------
 --
 -- Pretty-printing assembly language
diff --git a/compiler/nativeGen/SPARC/Regs.hs b/compiler/nativeGen/SPARC/Regs.hs
index 55b6ac9156..01db0ed3ac 100644
--- a/compiler/nativeGen/SPARC/Regs.hs
+++ b/compiler/nativeGen/SPARC/Regs.hs
@@ -4,7 +4,7 @@
 -- 
 -- -----------------------------------------------------------------------------
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/ShortcutJump.hs b/compiler/nativeGen/SPARC/ShortcutJump.hs
index 7f978c17c5..142ec6e65d 100644
--- a/compiler/nativeGen/SPARC/ShortcutJump.hs
+++ b/compiler/nativeGen/SPARC/ShortcutJump.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See
diff --git a/compiler/nativeGen/SPARC/Stack.hs b/compiler/nativeGen/SPARC/Stack.hs
index 4a6f4c1335..3560a0fe82 100644
--- a/compiler/nativeGen/SPARC/Stack.hs
+++ b/compiler/nativeGen/SPARC/Stack.hs
@@ -1,5 +1,5 @@
 
-{-# OPTIONS -fno-warn-tabs #-}
+{-# OPTIONS_GHC -fno-warn-tabs #-}
 -- The above warning supression flag is a temporary kludge.
 -- While working on this module you are encouraged to remove it and
 -- detab the module (please do the detabbing in a separate patch). See