From dad32754b99f5950c815fa86ad8c149c7a0ca2d0 Mon Sep 17 00:00:00 2001
From: Jeff Johnston <jjohnstn@redhat.com>
Date: Tue, 16 Apr 2002 19:10:48 +0000
Subject: [PATCH] 2002-04-16  Jeff Johnston  <jjohnstn@redhat.com>

        * m68k/configure.in: Change to use LIB_AC_PROG_CC instead
        of AC_PROG_CC to avoid building an executable in configuration.
        * m68k/configure: Regenerated.
---
 libgloss/ChangeLog         |   6 ++
 libgloss/m68k/configure    | 132 ++++++++-----------------------------
 libgloss/m68k/configure.in |  41 +++++++++++-
 3 files changed, 72 insertions(+), 107 deletions(-)

diff --git a/libgloss/ChangeLog b/libgloss/ChangeLog
index 13f7b922d..57b3f3272 100644
--- a/libgloss/ChangeLog
+++ b/libgloss/ChangeLog
@@ -1,3 +1,9 @@
+2002-04-16  Jeff Johnston  <jjohnstn@redhat.com>
+
+	* m68k/configure.in: Change to use LIB_AC_PROG_CC instead
+	of AC_PROG_CC to avoid building an executable in configuration.
+	* m68k/configure: Regenerated.
+
 2002-04-15  Hans-Peter Nilsson  <hp@bitrange.com>
 
         * d30v/syscalls.c: #include <time.h>.  Don't use multi-line
diff --git a/libgloss/m68k/configure b/libgloss/m68k/configure
index 36af25e10..1fbf8c890 100755
--- a/libgloss/m68k/configure
+++ b/libgloss/m68k/configure
@@ -740,10 +740,18 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
 
+# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
+# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
+# are probably using a cross compiler, which will not be able to fully
+# link an executable.  This should really be fixed in autoconf
+# itself.
+
+
+
 # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:747: checking for $ac_word" >&5
+echo "configure:755: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -773,7 +781,7 @@ if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:777: checking for $ac_word" >&5
+echo "configure:785: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -818,92 +826,11 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-  if test -z "$CC"; then
-    case "`uname -s`" in
-    *win32* | *WIN32*)
-      # Extract the first word of "cl", so it can be a program name with args.
-set dummy cl; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:828: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test -n "$CC"; then
-  ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  ac_dummy="$PATH"
-  for ac_dir in $ac_dummy; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_CC="cl"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
- ;;
-    esac
-  fi
   test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
 fi
 
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:860: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
-
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-cat > conftest.$ac_ext << EOF
-
-#line 871 "configure"
-#include "confdefs.h"
-
-main(){return(0);}
-EOF
-if { (eval echo configure:876: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
-  ac_cv_prog_cc_works=yes
-  # If we can't run a trivial program, we are probably using a cross compiler.
-  if (./conftest; exit) 2>/dev/null; then
-    ac_cv_prog_cc_cross=no
-  else
-    ac_cv_prog_cc_cross=yes
-  fi
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  ac_cv_prog_cc_works=no
-fi
-rm -fr conftest*
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
-if test $ac_cv_prog_cc_works = no; then
-  { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
-fi
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:902: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
-echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
-cross_compiling=$ac_cv_prog_cc_cross
-
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:907: checking whether we are using GNU C" >&5
+echo "configure:834: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -912,7 +839,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:916: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:843: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
   ac_cv_prog_gcc=yes
 else
   ac_cv_prog_gcc=no
@@ -923,15 +850,11 @@ echo "$ac_t""$ac_cv_prog_gcc" 1>&6
 
 if test $ac_cv_prog_gcc = yes; then
   GCC=yes
-else
-  GCC=
-fi
-
-ac_test_CFLAGS="${CFLAGS+set}"
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS=
-echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:935: checking whether ${CC-cc} accepts -g" >&5
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+echo "configure:858: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -946,22 +869,19 @@ rm -f conftest*
 fi
 
 echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
-if test "$ac_test_CFLAGS" = set; then
-  CFLAGS="$ac_save_CFLAGS"
-elif test $ac_cv_prog_cc_g = yes; then
-  if test "$GCC" = yes; then
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
     CFLAGS="-g -O2"
   else
-    CFLAGS="-g"
+    CFLAGS="-O2"
   fi
 else
-  if test "$GCC" = yes; then
-    CFLAGS="-O2"
-  else
-    CFLAGS=
-  fi
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
 fi
 
+
 AS=${AS-as}
 
 AR=${AR-ar}
@@ -971,7 +891,7 @@ LD=${LD-ld}
 # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:975: checking for $ac_word" >&5
+echo "configure:895: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1191,7 +1111,7 @@ cat >> $CONFIG_STATUS <<\EOF
 
 # Split the substitutions into bite-sized pieces for seds with
 # small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
+ac_max_sed_cmds=60 # Maximum number of lines to put in a sed script.
 ac_file=1 # Number of current file.
 ac_beg=1 # First line for current file.
 ac_end=$ac_max_sed_cmds # Line after last line for current file.
diff --git a/libgloss/m68k/configure.in b/libgloss/m68k/configure.in
index 177022633..6cb89ca16 100644
--- a/libgloss/m68k/configure.in
+++ b/libgloss/m68k/configure.in
@@ -34,7 +34,46 @@ AC_ARG_PROGRAM
 
 AC_PROG_INSTALL
 
-AC_PROG_CC
+# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
+# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
+# are probably using a cross compiler, which will not be able to fully
+# link an executable.  This should really be fixed in autoconf
+# itself.
+
+AC_DEFUN(LIB_AC_PROG_CC,
+[AC_BEFORE([$0], [AC_PROG_CPP])dnl
+AC_CHECK_PROG(CC, gcc, gcc)
+if test -z "$CC"; then
+  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
+  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
+fi
+
+AC_PROG_CC_GNU
+
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+dnl Check whether -g works, even if CFLAGS is set, in case the package
+dnl plays around with CFLAGS (such as to build both debugging and
+dnl normal versions of a library), tasteless as that idea is.
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  AC_PROG_CC_G
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-O2"
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+])
+
+LIB_AC_PROG_CC
+
 AS=${AS-as}
 AC_SUBST(AS)
 AR=${AR-ar}