libgloss: merge epiphany & libnosys & or1k configure scripts up a level

These subdirs have unique configure scripts to do some compiler tests.
The checks should work for all targets, so hoist them up to the top
libgloss dir.  This should allow us to delete these subdir configure
scripts.

It means the top-level gains autoheader support, but that's fine.
It wasn't exporting any defines previously (i.e. -D into CPPFLAGS),
and all of the defines it now exports are only used by code in the
libnosys subdir which was expecting to have a config.h.

6 files changed, 29 insertions, 4788 deletions

diff --git a/libgloss/libnosys/Makefile.in b/libgloss/libnosys/Makefile.in
index 22828a47f..5525de9d5 100644
--- a/libgloss/libnosys/Makefile.in
+++ b/libgloss/libnosys/Makefile.in
@@ -111,8 +111,5 @@ info:
 install-info:
 clean-info:
 
-Makefile: Makefile.in config.status @host_makefile_frag_path@
-	$(SHELL) config.status
-
-config.status: configure
-	$(SHELL) config.status --recheck
+Makefile: Makefile.in ../config.status
+	cd .. && $(SHELL) config.status
diff --git a/libgloss/libnosys/acinclude.m4 b/libgloss/libnosys/acinclude.m4
new file mode 100644
index 000000000..7b0d7b4d6
--- /dev/null
+++ b/libgloss/libnosys/acinclude.m4
@@ -0,0 +1,27 @@
+dnl Make sure syscall names match those being used by newlib
+case "${target}" in
+  *-*-cygwin*) ;;
+  a29k-amd-udi) ;;
+  aarch64*-*-*) ;;
+  arc-*-*) ;;
+  arm*-*-*) ;;
+  bfin-*-*) ;;
+  cris-*-* | crisv32-*-*) ;;
+  d10v*) ;;
+  h8300*-*-*) ;;
+  h8500-*-*) ;;
+  i[3456]86-*-sco*) ;;
+  lm32-*-*) ;;
+  m32r-*-*) ;;
+  mn10?00-*-*) ;;
+  riscv*-*-*) ;;
+  powerpcle-*-pe) ;;
+  sh*-*-*) ;;
+  sparc-sun-sunos*) ;;
+  sparc64-*-*) ;;
+  v850*-*-*) ;;
+  w65-*-*) ;;
+  xstormy16-*-*) ;;
+  z8k-*-*) ;;
+  *) AC_DEFINE(MISSING_SYSCALL_NAMES, 1, [Missing syscall names]) ;;
+esac
diff --git a/libgloss/libnosys/aclocal.m4 b/libgloss/libnosys/aclocal.m4
deleted file mode 100644
index 24271f381..000000000
--- a/libgloss/libnosys/aclocal.m4
+++ /dev/null
@@ -1,383 +0,0 @@
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diff --git a/libgloss/libnosys/config.h.in b/libgloss/libnosys/config.h.in
deleted file mode 100644
index 378cec1ee..000000000
--- a/libgloss/libnosys/config.h.in
+++ /dev/null
@@ -1,40 +0,0 @@
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-
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-
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-
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-
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-
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diff --git a/libgloss/libnosys/configure b/libgloss/libnosys/configure
deleted file mode 100755
index 72c65a68c..000000000
--- a/libgloss/libnosys/configure
+++ /dev/null
@@ -1,4179 +0,0 @@
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-  cd ..
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-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
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-
- if
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-  am__fastdepCC_TRUE='#'
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-
-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-  IFS=$as_save_IFS
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-    for ac_exec_ext in '' $ac_executable_extensions; do
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-
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-
-
-  test -z "$CC" && as_fn_error $? "no acceptable cc found in \$PATH" "$LINENO" 5
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-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using GNU C" >&5
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-  ac_status=$?
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-  ac_cv_c_compiler_gnu=no
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-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
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-
-int
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-{
-
-  ;
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-_ACEOF
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-  ac_cv_prog_cc_g=yes
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-  CFLAGS=""
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-
-int
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-{
-
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-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-
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-
-int
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-{
-
-  ;
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-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_prog_cc_g=yes
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-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-   ac_c_werror_flag=$ac_save_c_werror_flag
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
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-  GCC=
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-
-AS=${AS-as}
-
-AR=${AR-ar}
-
-LD=${LD-ld}
-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-
-fi
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-
-
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-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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-
-
-
-host_makefile_frag=${srcdir}/../config/default.mh
-
-host_makefile_frag_path=$host_makefile_frag
-
-
-
-ac_config_files="$ac_config_files Makefile"
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-_ACEOF
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-LTLIBOBJS=$ac_ltlibobjs
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-debug=false
-ac_cs_recheck=false
-ac_cs_silent=false
-
-SHELL=\${CONFIG_SHELL-$SHELL}
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-{
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-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
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-{
-  set +e
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-
-# as_fn_unset VAR
-# ---------------
-# Portably unset VAR.
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-{
-  { eval $1=; unset $1;}
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-as_unset=as_fn_unset
-# as_fn_append VAR VALUE
-# ----------------------
-# Append the text in VALUE to the end of the definition contained in VAR. Take
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-  as_fn_append ()
-  {
-    eval $1=\$$1\$2
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-# as_fn_arith ARG...
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-as_me=`$as_basename -- "$0" ||
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-$as_echo X"$as_dir" |
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-	    s//\1/
-	    q
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-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
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-	  /^X\(\/\/\)$/{
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-	    q
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-	  s/.*/./; q'`
-      test -d "$as_dir" && break
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-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
-
-
-} # as_fn_mkdir_p
-if mkdir -p . 2>/dev/null; then
-  as_mkdir_p='mkdir -p "$as_dir"'
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-  test -d ./-p && rmdir ./-p
-  as_mkdir_p=false
-fi
-
-
-# as_fn_executable_p FILE
-# -----------------------
-# Test if FILE is an executable regular file.
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-{
-  test -f "$1" && test -x "$1"
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-# Sed expression to map a string onto a valid variable name.
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-
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-exec 6>&1
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-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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-ac_configure_extra_args=
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-ac_abs_top_builddir=$ac_pwd
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-ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
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-  else
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-      # Make sure the directory exists.
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-	 X"$file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
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-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
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-      as_dir=$dirpart/$fdir; as_fn_mkdir_p
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-    "Makefile":F) ac_file=Makefile . ${srcdir}/../../config-ml.in ;;
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-as_fn_exit 0
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-# config.status does its own redirection, appending to config.log.
-# Unfortunately, on DOS this fails, as config.log is still kept open
-# by configure, so config.status won't be able to write to it; its
-# output is simply discarded.  So we exec the FD to /dev/null,
-# effectively closing config.log, so it can be properly (re)opened and
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-# need to make the FD available again.
-if test "$no_create" != yes; then
-  ac_cs_success=:
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-  test "$silent" = yes &&
-    ac_config_status_args="$ac_config_status_args --quiet"
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-  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
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-
-
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diff --git a/libgloss/libnosys/configure.ac b/libgloss/libnosys/configure.ac
deleted file mode 100644
index f428616d7..000000000
--- a/libgloss/libnosys/configure.ac
+++ /dev/null
@@ -1,181 +0,0 @@
-# Copyright (c) 1995, 1996 Cygnus Support
-#
-# The authors hereby grant permission to use, copy, modify, distribute,
-# and license this software and its documentation for any purpose, provided
-# that existing copyright notices are retained in all copies and that this
-# notice is included verbatim in any distributions. No written agreement,
-# license, or royalty fee is required for any of the authorized uses.
-# Modifications to this software may be copyrighted by their authors
-# and need not follow the licensing terms described here, provided that
-# the new terms are clearly indicated on the first page of each file where
-# they apply.
-#
-# Process this file with autoconf to produce a configure script.
-#
-AC_INIT(close.c)
-AC_CONFIG_HEADER(config.h)
-
-AC_CONFIG_AUX_DIR(../..)
-
-AC_CANONICAL_SYSTEM
-AC_ARG_PROGRAM
-
-AC_PROG_INSTALL
-
-AC_DEFINE(HAVE_GNU_LD, 1, [Using GNU LD])
-dnl Make sure syscall names match those being used by newlib
-case "${target}" in
-  *-*-cygwin*)
-	;;
-  a29k-amd-udi)
-	;;
-  aarch64*-*-*)
-	;;
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-	;;
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-	;;
-  bfin-*-*)
-	;;
-  cris-*-* | crisv32-*-*)
-	;;
-  d10v*)
-	;;
-  h8300*-*-*)
-	;;	
-  h8500-*-*)
-	;;	
-  i[3456]86-*-sco*)
-	;;
-  lm32-*-*)
-	;;
-  m32r-*-*)
-	;;
-  mn10?00-*-*)
-	;;
-  riscv*-*-*)
-	;;
-  powerpcle-*-pe)
-	;;
-  sh*-*-*)
-	;;
-  sparc-sun-sunos*)
-	;;
-  sparc64-*-*)
-	;;
-  v850*-*-*)
-	;;
-  w65-*-*)
-	;;	
-  xstormy16-*-*)
-	;;
-  z8k-*-*)
-	;;
-  *)
-	AC_DEFINE(MISSING_SYSCALL_NAMES, 1, [Missing syscall names])
-	;;
-esac
-
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-case "${target}" in
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-
-        AC_CACHE_CHECK([for .previous assembler directive],
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-        cat > conftest.s <<EOF
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-        if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
-          libc_cv_asm_previous_directive=yes
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-
-	if test "x${libc_cv_asm_previous_directive}" = "xyes"; then
-          AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE, 1, [.previous directive allowed])
-	fi
-
-        AC_CACHE_CHECK([for .popsection assembler directive],
-                         libc_cv_asm_popsection_directive, [dnl
-        libc_cv_asm_popsection_directive=no
-        cat > conftest.s <<EOF
-.pushsection foo_section
-.popsection
-EOF
-        if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
-          libc_cv_asm_popsection_directive=yes
-        fi
-        rm -f conftest*])
-
-	if test "x${libc_cv_asm_popsection_directive}" = "xyes"; then
-          AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE, 1, [.pushsection/.popsection directives allowed])
-	fi
-
-        AC_CACHE_CHECK([for section attributes],
-                         libc_cv_section_attributes, [dnl
-        libc_cv_section_attributes=no
-        cat > conftest.c <<EOF
-int secttest __attribute__ ((section (".gnu.warning.secttest"))) = 10;
-int main() {}
-EOF
-        if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.c 1>&AC_FD_CC); then
-          libc_cv_section_attributes=yes
-        fi
-        rm -f conftest*])
-	if test "x${libc_cv_section_attributes}" = "xyes"; then
-          AC_DEFINE(HAVE_SECTION_ATTRIBUTES, 1, [support for section attributes])
-	fi
-        ;;
-esac
-
-AC_CACHE_CHECK([for symbol prefix], libc_cv_symbol_prefix, [dnl
-cat > conftest.c <<\EOF
-foo () { }
-EOF
-dnl
-libc_cv_symbol_prefix=''
-if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo" > /dev/null]);
-then
-  libc_cv_symbol_prefix='$'
-else
-  if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "_foo" > /dev/null]);
-  then
-    libc_cv_symbol_prefix=_
-  fi
-fi
-rm -f conftest* ])
-AC_DEFINE_UNQUOTED(__SYMBOL_PREFIX, "$libc_cv_symbol_prefix", [symbol prefix])
-
-LIB_AC_PROG_CC
-AS=${AS-as}
-AC_SUBST(AS)
-AR=${AR-ar}
-AC_SUBST(AR)
-LD=${LD-ld}
-AC_SUBST(LD)
-AC_PROG_RANLIB
-LIB_AM_PROG_AS
-
-host_makefile_frag=${srcdir}/../config/default.mh
-
-dnl We have to assign the same value to other variables because autoconf
-dnl doesn't provide a mechanism to substitute a replacement keyword with
-dnl arbitrary data or pathnames.
-dnl
-host_makefile_frag_path=$host_makefile_frag
-AC_SUBST(host_makefile_frag_path)
-AC_SUBST_FILE(host_makefile_frag)
-
-AC_CONFIG_FILES(Makefile,
-ac_file=Makefile . ${srcdir}/../../config-ml.in,
-srcdir=${srcdir}
-target=${target}
-with_multisubdir=${with_multisubdir}
-ac_configure_args="${ac_configure_args} --enable-multilib"
-CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
-)
-AC_OUTPUT
-
-