[toplevel] Remove unused libc_interface stuff

[toplevel] Remove unused libc_interface stuff

[Nathanael Nerode]

I was startled to discover that this wasn't being used anywhere in
gcc/ or src/.  It's not used in glibc, either.  I don't see what
the point is any more.

Combined bootstrap in progress, just to make sure.

I'm sending this out to see if anyone knows of a reason to keep it;
otherwise I'll nuke it.

	* config.if: Remove unused libc_interface determination.

Index: config.if
===================================================================
RCS file: /cvs/gcc/gcc/config.if,v
retrieving revision 1.9
diff -u -r1.9 config.if
--- config.if	30 Jan 2003 11:52:51 -0000	1.9
+++ config.if	15 Jul 2003 00:51:37 -0000
@@ -3,7 +3,6 @@
 # determine:
 #
 #	1. libstcxx_incdir: the interface name for libstdc++.
-#	2. libc_interface: the interface name for libc.
 #
 
 # Get the top level src dir.
@@ -36,53 +35,3 @@
 fi
 libstdcxx_incdir=c++/${gcc_version}
 
-# The trickiest part is libc_interface.
-if [ -z "${libc_interface}" ]
-then
-  case ${target_os} in
-  *linux*libc1*|*linux*libc5*)
-    case ${target_alias} in
-    *alpha*|*powerpc*)
-      libc_interface=-libc5.9-
-      ;;
-    *)
-      libc_interface=-libc5-
-      ;;
-    esac
-    ;;
-  *linux*gnu*)
-    # We have to work harder to figure it out.
-    if [ ${target_alias} = ${build_alias} ]
-    then
-      dummy=if$$
-      cat >$dummy.c <<EOF
-#include <features.h>                      
-main(argc, argv)
-     int argc;          
-     char *argv[];
-{
-  printf("%d\n", __GLIBC_MINOR__);
-  return 0;
-}
-EOF
-      ${CC-cc} $dummy.c -o $dummy 2>/dev/null
-      if [ "$?" = 0 ]
-      then
-	libc_interface=-libc6.`./$dummy`-
-	rm -f $dummy.c $dummy
-      else
-	# It should never happen.
-	echo "Cannot find the GNU C library minor version number." >&2
-	rm -f $dummy.c $dummy
-	exit 1
-      fi
-    else
-      # Cross compiling. Assume glibc 2.1.
-      libc_interface=-libc6.1-
-    fi
-    ;;
-  *)
-    libc_interface=-
-    ;;
-  esac
-fi

-- 
Nathanael Nerode  <neroden at gcc.gnu.org>
http://home.twcny.rr.com/nerode/neroden/fdl.html

Re: [toplevel] Remove unused libc_interface stuff

[Jim Wilson]

Nathanael Nerode wrote:
> 	* config.if: Remove unused libc_interface determination.

I wrote roughly the same patch a couple of days before to fix GCC PR 
2236, but hadn't gotten around to testing it with a bootstrap.  I'll 
close GCC PR 2236 now. 
http://gcc.gnu.org/ml/gcc-patches/2003-07/msg01034.html

I also noticed that the comments for libstdcxx_incdir are wrong.  This 
used to be libstdcxx_interface, which was an interface name for 
libstdc++.  It was later changed to be libstdcxx_incdir which holds a 
version number for the libstdc++ header files, but the comment at the 
top of the file still claims that it is an interface name.  It isn't.

Also, since we no longer use the file to define any InferFace (IF) 
names, it seems kind of silly to keep it around.  It probably should be 
folded into other files and eliminated.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

Re: [toplevel] Remove unused libc_interface stuff

[Alexandre Oliva]

On Jul 14, 2003, Nathanael Nerode <neroden@twcny.rr.com> wrote:

> I'm sending this out to see if anyone knows of a reason to keep it;
> otherwise I'll nuke it.

> 	* config.if: Remove unused libc_interface determination.

Go ahead, in case you still haven't :-)

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                 aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist                Professional serial bug killer