generalize AIX cabs fix regex

[David Edelsohn]

	The formatting of the AIX math.h file has changed slightly.  This
patch generalizes the regex slightly so that it finds the new variant.

	Okay to apply?

Thanks, David

Index: inclhack.def
===================================================================
RCS file: /cvs/gcc/egcs/gcc/fixinc/inclhack.def,v
retrieving revision 1.90
diff -c -p -r1.90 inclhack.def
*** inclhack.def	2000/08/23 14:08:57	1.90
--- inclhack.def	2000/09/29 01:07:41
*************** fix = {
*** 883,898 ****
  fix = {
      hackname = broken_cabs;
      files  = "math.h";
!     select = '^extern double cabs';
  
      c_fix     = format;
      c_fix_arg = "";
      c_fix_arg = "^extern double cabs\\((struct dbl_hypot|)\\);";
  
      test_text = "#ifdef __STDC__\n"
!                 "extern double cabs(struct dbl_hypot);\n"
                  "#else\n"
!                 "extern double cabs();\n"
                  "#endif\n"
                  "extern double cabs(); /* This is a comment\n"
                  "                         and it ends here. */";
--- 883,898 ----
  fix = {
      hackname = broken_cabs;
      files  = "math.h";
!     select = '^extern[ \t]*double[ \t]*cabs';
  
      c_fix     = format;
      c_fix_arg = "";
      c_fix_arg = "^extern double cabs\\((struct dbl_hypot|)\\);";
  
      test_text = "#ifdef __STDC__\n"
!                 "extern     double   cabs(struct dbl_hypot);\n"
                  "#else\n"
!                 "extern     double   cabs();\n"
                  "#endif\n"
                  "extern double cabs(); /* This is a comment\n"
                  "                         and it ends here. */";