Move comments about big sed command outside the command itself.

From-SVN: r3900

diff --git a/gcc/fixincludes b/gcc/fixincludes
index 2fab65f..52ecb0a 100755 (executable)
--- a/gcc/fixincludes
+++ b/gcc/fixincludes
@@ -260,6 +260,12 @@ while [ $# != 0 ]; do
        || echo "Can't copy $file"
        chmod +w $2/$file
        chmod a+r $2/$file
+       # Here is how the sed commands in braces work.
+       # (It doesn't work to put the comments inside the sed commands.)
+               # Surround each word with spaces, to simplify matching below.
+               # ANSIfy each pre-ANSI machine-dependent symbol
+               # by surrounding it with __ __.
+               # Remove the spaces that we inserted around each word.
        sed -e '
                                   :loop
          /\\$/                 N
@@ -276,11 +282,8 @@ while [ $# != 0 ]; do
          /#define._CTRL/               s/'\''\([cgx]\)'\''/\1/g
          /#define.BSD43_CTRL/          s/'\''\([cgx]\)'\''/\1/g
          /#[el]*if/{
-               # Surround each word with spaces, to simplify matching below.
                s/[a-zA-Z0-9_][a-zA-Z0-9_]*/ & /g
 
-               # ANSIfy each pre-ANSI machine-dependent symbol
-               # by surrounding it with __ __.
                s/ bsd4\([0-9]\) / __bsd4\1__ /g
                s/ _*i386 / __i386__ /g
                s/ is68k / __is68k__ /g
@@ -295,7 +298,6 @@ while [ $# != 0 ]; do
                s/ unix / __unix__ /g
                s/ vax / __vax__ /g
 
-               # Remove the spaces that we inserted around each word.
                s/ \([a-zA-Z0-9_][a-zA-Z0-9_]*\) /\1/g
          }
          /^#define.NULL[       ]/      i\