[svn-r9729] Purpose:

    Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-)

Description:
    Generally speaking, this is the "signed->unsigned" change to selections.
However, in the process of merging code back, things got stickier and stickier
until I ended up doing a big "sync the two branches up" operation.  So... I
brought back all the "infrastructure" fixes from the development branch to the
release branch (which I think were actually making some improvement in
performance) as well as fixed several bugs which had been fixed in one branch,
but not the other.

    I've also tagged the repository before making this checkin with the label
"before_signed_unsigned_changes".

Platforms tested:
    FreeBSD 4.10 (sleipnir) w/parallel & fphdf5
    FreeBSD 4.10 (sleipnir) w/threadsafe
    FreeBSD 4.10 (sleipnir) w/backward compatibility
    Solaris 2.7 (arabica) w/"purify options"
    Solaris 2.8 (sol) w/FORTRAN & C++
    AIX 5.x (copper) w/parallel & FORTRAN
    IRIX64 6.5 (modi4) w/FORTRAN
    Linux 2.4 (heping) w/FORTRAN & C++


Misc. update:

1 files changed, 54 insertions, 56 deletions

diff --git a/config/irix6.x b/config/irix6.x
index e9bb680..c8918a1 100644
--- a/config/irix6.x
+++ b/config/irix6.x
@@ -7,78 +7,76 @@
 # See BlankForm in this directory for details.
 
 # Use SGI supplied C compiler by default.  There is no ranlib
-if test "X-" =  "X-$CC"; then
+if test "X-" = "X-$CC"; then
     CC='cc'
     CC_BASENAME=cc
     # use c99 compiler if available.
     if `c99 -version >/dev/null 2>&1` ; then
-	CC='c99'
+        CC='c99'
     fi
 fi
 RANLIB=:
 
 # Compiler flags
 case "X-$CC_BASENAME" in
-    X-gcc)
-	. $srcdir/config/gnu-flags
-	;;
+  X-gcc)
+    . $srcdir/config/gnu-flags
+    ;;
 
-    *)
-	if [ "$CC_BASENAME" = cc ] || 
-	    ($CC -version 2>&1 | grep -s "MIPSpro Compilers") 2>&1 > /dev/null
-	then
-	    # use these flags if this is the SGI cc compiler or some compiler
-	    # command that eventually uses the SGI cc compiler.
+  *)
+    if [ "$CC_BASENAME" = "cc" ] || ($CC -version 2>&1 | grep -s "MIPSpro Compilers") 2>&1 > /dev/null; then
+      # use these flags if this is the SGI cc compiler or some compiler
+      # command that eventually uses the SGI cc compiler.
 
-	    # Check for old versions of the compiler that don't work right.
-	    case "`$CC -version 2>&1 |head -1`" in
-		"Mongoose Compilers: Version 7.00")
-		    echo "  +---------------------------------------------------+"
-		    echo "  | You have an old version of cc (Mongoose Compilers |"
-		    echo "  | version 7.00).  Please upgrade to MIPSpro version |"
-		    echo "  | 7.2.1.2m (patches are available from the SGI web  |"
-		    echo "  | site).  The 7.00 version may generate incorrect   |"
-		    echo "  | code, especially when optimizations are enabled.  |"
-		    echo "  +---------------------------------------------------+"
-		    sleep 5
-		    ;;
-	    esac
+      # Check for old versions of the compiler that don't work right.
+      case "`$CC -version 2>&1 |head -1`" in
+        "Mongoose Compilers: Version 7.00")
+          echo "  +---------------------------------------------------+"
+          echo "  | You have an old version of cc (Mongoose Compilers |"
+          echo "  | version 7.00).  Please upgrade to MIPSpro version |"
+          echo "  | 7.2.1.2m (patches are available from the SGI web  |"
+          echo "  | site).  The 7.00 version may generate incorrect   |"
+          echo "  | code, especially when optimizations are enabled.  |"
+          echo "  +---------------------------------------------------+"
+          sleep 5
+          ;;
+      esac
 
-	    # Always turn off these compiler warnings for the -64 compiler:
-	    #    1174:  function declared but not used
-	    #    1196:  __vfork() (this is an SGI config problem)
-	    #    1209:  constant expressions
-	    #    1429:  the `long long' type is not standard
-	    #    1685:  turn off warnings about turning off invalid warnings
-	    #    3201:  remark - parameter not referenced
-#	    CFLAGS="$CFLAGS -woff 1174,1429,1209,1196,1685,3201"
-	    CFLAGS="$CFLAGS -woff 1209,3201"
+      # Always turn off these compiler warnings for the -64 compiler:
+      #    1174:  function declared but not used
+      #    1196:  __vfork() (this is an SGI config problem)
+      #    1209:  constant expressions
+      #    1429:  the `long long' type is not standard
+      #    1685:  turn off warnings about turning off invalid warnings
+      #    3201:  remark - parameter not referenced
+      #CFLAGS="$CFLAGS -woff 1174,1429,1209,1196,1685,3201"
+      CFLAGS="$CFLAGS -woff 1209,3201"
 
-	    # Always turn off these compiler warnings for the old compiler:
-	    #    799:   the `long long' type is not standard
-	    #    803:   turn off warnings about turning off invalid warnings
-	    #    835:   __vfork() (this is an SGI config problem)
-#	    CFLAGS="$CFLAGS -woff 799,803,835"
+      # Always turn off these compiler warnings for the old compiler:
+      #    799:   the `long long' type is not standard
+      #    803:   turn off warnings about turning off invalid warnings
+      #    835:   __vfork() (this is an SGI config problem)
+      #CFLAGS="$CFLAGS -woff 799,803,835"
 
-	    # Always turn off these loader warnings:
-	    # (notice the peculiar syntax)
-	    #      47:  branch instructions that degrade performance on R4000
-	    #      84:  a library is not used
-	    #      85:  duplicate definition preemption (from -lnsl)
-	    #     134:  duplicate weak definition preemption (from -lnsl)
-	    CFLAGS="$CFLAGS -Wl,-woff,47,-woff,84,-woff,85,-woff,134"
-	fi
+      # Always turn off these loader warnings:
+      # (notice the peculiar syntax)
+      #      47:  branch instructions that degrade performance on R4000
+      #      84:  a library is not used
+      #      85:  duplicate definition preemption (from -lnsl)
+      #     134:  duplicate weak definition preemption (from -lnsl)
+      CFLAGS="$CFLAGS -Wl,-woff,47,-woff,84,-woff,85,-woff,134"
+    fi
 
-	# Extra debugging flags
-	DEBUG_CFLAGS="-g -fullwarn"
-	DEBUG_CPPFLAGS=
+    # Extra debugging flags
+    DEBUG_CFLAGS="-g -fullwarn"
+    DEBUG_CPPFLAGS=
 
-	# Extra production flags
-	PROD_CFLAGS="-O -OPT:Olimit=0 -s"
-	PROD_CPPFLAGS=
+    # Extra production flags
+    PROD_CFLAGS="-O -OPT:Olimit=0 -s"
+    PROD_CPPFLAGS=
 
-	# Extra profiling flags
-	PROFILE_CFLAGS=
-	PROFILE_CPPFLAGS=
-	;;
+    # Extra profiling flags
+    PROFILE_CFLAGS=
+    PROFILE_CPPFLAGS=
+    ;;
 esac