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Date: Fri, 27 Dec 2002 22:26:00 -0000
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From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Subject: Re: PATCH: Re: other/9031
Reply-To: John David Anglin <dave@hiauly1.hia.nrc.ca>
X-SW-Source: 2002-12/txt/msg01335.txt.bz2
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The following reply was made to PR other/9031; it has been noted by GNATS.

From: John David Anglin <dave@hiauly1.hia.nrc.ca>
To: Alexandre Oliva <aoliva@redhat.com>
Cc: gcc-gnats@gcc.gnu.org, nobody@gcc.gnu.org, dave.anglin@nrc.ca,
   gcc-patches@gcc.gnu.org, binutils@sources.redhat.com, neroden@twcny.rr.com
Subject: Re: PATCH: Re: other/9031
Date: Sat, 28 Dec 2002 01:22:25 -0500

 Here is a revised patch.  I have improved the gcc detection, removed the
 extra double quotes from the commands used to print the ld used by gcc,
 and the path canonicalization.  The mingw CR removal is still in as I
 have no way to determine whether this isn't still needed.
 
 I have tested the patch with builds on hppa64-hp-hpux11.11 and
 hppa2.0w-hp-hpux11.00.
 
 The patch will be obsolete if Nanthanael's autoconfiscation patch is
 installed, although I see his patch still includes the code that I
 am attempting to improve.
 
 Dave
 
 2002-12-28  John David Anglin  <dave.anglin@nrc.ca>
 
 	* configure (LD): Improve test for gcc and try to set LD to the ld
 	used by gcc when using gcc and not doing a Canadian Cross.
 
 Index: configure
 ===================================================================
 RCS file: /cvsroot/gcc/gcc/configure,v
 retrieving revision 1.51
 diff -u -3 -p -r1.51 configure
 --- configure	22 Dec 2002 06:46:41 -0000	1.51
 +++ configure	27 Dec 2002 18:51:43 -0000
 @@ -1020,6 +1020,7 @@ else
    YACC='\$(USUAL_YACC)'
  
    # If CC is still not set, try to get gcc.
 +  cc_prog=
    if [ -z "${CC}" ]; then
      IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}:"
      for dir in $PATH; do
 @@ -1028,6 +1029,7 @@ else
  	CC="gcc"
  	echo 'void f(){}' > conftest.c
  	if test -z "`${CC} -g -c conftest.c 2>&1`"; then
 +	  cc_prog=gcc
  	  CFLAGS=${CFLAGS-"-g -O2"}
  	  CXXFLAGS=${CXXFLAGS-"-g -O2"}
  	else
 @@ -1044,8 +1046,16 @@ else
      if test -z "${CFLAGS}"; then
        # Here CC is set but CFLAGS is not.  Use a quick hack to use -O2 if CC
        # is set to a version of gcc.
 -      case "${CC}" in
 -      *gcc)
 +      cat > conftest.c <<EOF
 +#ifdef __GNUC__
 +  yes;
 +#endif
 +EOF
 +      if ${CC} -E conftest.c | grep yes >/dev/null 2>&1; then
 +	cc_prog=gcc
 +      fi
 +      rm -f conftest.c
 +      if [ "$cc_prog" = gcc ]; then
  	echo 'void f(){}' > conftest.c
  	if test -z "`${CC} -g -c conftest.c 2>&1`"; then
  	  CFLAGS=${CFLAGS-"-g -O2"}
 @@ -1055,9 +1065,23 @@ else
  	  CXXFLAGS=${CXXFLAGS-"-O2"}
  	fi
  	rm -f conftest*
 -	;;
 -      esac
 +      fi
      fi
 +  fi
 +
 +  # If we are using gcc, try to set the LD default to the ld used by gcc.
 +  if [ "$cc_prog" = gcc ]; then
 +    case $build in
 +    *-*-mingw*)
 +      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
 +    *)
 +      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
 +    esac
 +    case $gcc_prog_ld in
 +    # Accept absolute paths.
 +    [\\/]* | [A-Za-z]:[\\/]*)
 +      LD="$gcc_prog_ld" ;;
 +    esac
    fi
  
    CXX=${CXX-"c++"}