configure tweaks, support $libc_add_on_config_subdirs

2 files changed, 107 insertions, 141 deletions

diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index 199457a3ac..06105c7e69 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/sysdeps/unix/sysv/linux/configure
@@ -11,42 +11,37 @@ if test -n "$sysheaders"; then
 fi
 
 
-{ echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
-echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; }
+{ $as_echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
 if test "${ac_cv_path_GREP+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  # Extract the first word of "grep ggrep" to use in msg output
-if test -z "$GREP"; then
-set dummy grep ggrep; ac_prog_name=$2
-if test "${ac_cv_path_GREP+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  $as_echo_n "(cached) " >&6
 else
+  if test -z "$GREP"; then
   ac_path_GREP_found=false
-# Loop through the user's path and test for each of PROGNAME-LIST
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
   for ac_prog in grep ggrep; do
-  for ac_exec_ext in '' $ac_executable_extensions; do
-    ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-    { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
-    # Check for GNU ac_path_GREP and select it if it is found.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+# Check for GNU ac_path_GREP and select it if it is found.
   # Check for GNU $ac_path_GREP
 case `"$ac_path_GREP" --version 2>&1` in
 *GNU*)
   ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
 *)
   ac_count=0
-  echo $ECHO_N "0123456789$ECHO_C" >"conftest.in"
+  $as_echo_n 0123456789 >"conftest.in"
   while :
   do
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    echo 'GREP' >> "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
     "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     ac_count=`expr $ac_count + 1`
@@ -61,74 +56,60 @@ case `"$ac_path_GREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-
-    $ac_path_GREP_found && break 3
+      $ac_path_GREP_found && break 3
+    done
   done
 done
-
-done
 IFS=$as_save_IFS
-
-
-fi
-
-GREP="$ac_cv_path_GREP"
-if test -z "$GREP"; then
-  { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
+  if test -z "$ac_cv_path_GREP"; then
+    { { $as_echo "$as_me:$LINENO: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
+$as_echo "$as_me: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
    { (exit 1); exit 1; }; }
-fi
-
+  fi
 else
   ac_cv_path_GREP=$GREP
 fi
 
-
 fi
-{ echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
-echo "${ECHO_T}$ac_cv_path_GREP" >&6; }
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
  GREP="$ac_cv_path_GREP"
 
 
-{ echo "$as_me:$LINENO: checking for egrep" >&5
-echo $ECHO_N "checking for egrep... $ECHO_C" >&6; }
+{ $as_echo "$as_me:$LINENO: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
 if test "${ac_cv_path_EGREP+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  $as_echo_n "(cached) " >&6
 else
   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
    then ac_cv_path_EGREP="$GREP -E"
    else
-     # Extract the first word of "egrep" to use in msg output
-if test -z "$EGREP"; then
-set dummy egrep; ac_prog_name=$2
-if test "${ac_cv_path_EGREP+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
+     if test -z "$EGREP"; then
   ac_path_EGREP_found=false
-# Loop through the user's path and test for each of PROGNAME-LIST
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
   for ac_prog in egrep; do
-  for ac_exec_ext in '' $ac_executable_extensions; do
-    ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-    { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
-    # Check for GNU ac_path_EGREP and select it if it is found.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
 case `"$ac_path_EGREP" --version 2>&1` in
 *GNU*)
   ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
 *)
   ac_count=0
-  echo $ECHO_N "0123456789$ECHO_C" >"conftest.in"
+  $as_echo_n 0123456789 >"conftest.in"
   while :
   do
     cat "conftest.in" "conftest.in" >"conftest.tmp"
     mv "conftest.tmp" "conftest.in"
     cp "conftest.in" "conftest.nl"
-    echo 'EGREP' >> "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
     ac_count=`expr $ac_count + 1`
@@ -143,40 +124,31 @@ case `"$ac_path_EGREP" --version 2>&1` in
   rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
 esac
 
-
-    $ac_path_EGREP_found && break 3
+      $ac_path_EGREP_found && break 3
+    done
   done
 done
-
-done
 IFS=$as_save_IFS
-
-
-fi
-
-EGREP="$ac_cv_path_EGREP"
-if test -z "$EGREP"; then
-  { { echo "$as_me:$LINENO: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-echo "$as_me: error: no acceptable $ac_prog_name could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
+  if test -z "$ac_cv_path_EGREP"; then
+    { { $as_echo "$as_me:$LINENO: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
+$as_echo "$as_me: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
    { (exit 1); exit 1; }; }
-fi
-
+  fi
 else
   ac_cv_path_EGREP=$EGREP
 fi
 
-
    fi
 fi
-{ echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
-echo "${ECHO_T}$ac_cv_path_EGREP" >&6; }
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
 
-{ echo "$as_me:$LINENO: checking installed Linux kernel header files" >&5
-echo $ECHO_N "checking installed Linux kernel header files... $ECHO_C" >&6; }
+{ $as_echo "$as_me:$LINENO: checking installed Linux kernel header files" >&5
+$as_echo_n "checking installed Linux kernel header files... " >&6; }
 if test "${libc_cv_linux2010+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  $as_echo_n "(cached) " >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
@@ -198,10 +170,10 @@ fi
 rm -f conftest*
 
 fi
-{ echo "$as_me:$LINENO: result: $libc_cv_linux2010" >&5
-echo "${ECHO_T}$libc_cv_linux2010" >&6; }
+{ $as_echo "$as_me:$LINENO: result: $libc_cv_linux2010" >&5
+$as_echo "$libc_cv_linux2010" >&6; }
 if test "$libc_cv_linux2010" != '2.0.10 or later'; then
-  { { echo "$as_me:$LINENO: error: GNU libc requires kernel header files from
+  { { $as_echo "$as_me:$LINENO: error: GNU libc requires kernel header files from
 Linux 2.0.10 or later to be installed before configuring.
 The kernel header files are found usually in /usr/include/asm and
 /usr/include/linux; make sure these directories use files from
@@ -209,7 +181,7 @@ Linux 2.0.10 or later.  This check uses <linux/version.h>, so
 make sure that file was built correctly when installing the kernel header
 files.  To use kernel headers not from /usr/include/linux, use the
 configure option --with-headers." >&5
-echo "$as_me: error: GNU libc requires kernel header files from
+$as_echo "$as_me: error: GNU libc requires kernel header files from
 Linux 2.0.10 or later to be installed before configuring.
 The kernel header files are found usually in /usr/include/asm and
 /usr/include/linux; make sure these directories use files from
@@ -291,8 +263,8 @@ if test -n "$minimum_kernel"; then
   arch_version=$((`echo "$arch_minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1 \* 65536 + \2 \* 256 + \3/'`))
 
   if test $user_version -lt $arch_version; then
-    { echo "$as_me:$LINENO: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&5
-echo "$as_me: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&2;}
+    { $as_echo "$as_me:$LINENO: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&5
+$as_echo "$as_me: WARNING: minimum kernel version reset to $arch_minimum_kernel" >&2;}
     minimum_kernel=$arch_minimum_kernel
   fi
 else
@@ -302,8 +274,8 @@ else
 fi
 
 if test -n "$minimum_kernel"; then
-  { echo "$as_me:$LINENO: checking for kernel header at least $minimum_kernel" >&5
-echo $ECHO_N "checking for kernel header at least $minimum_kernel... $ECHO_C" >&6; }
+  { $as_echo "$as_me:$LINENO: checking for kernel header at least $minimum_kernel" >&5
+$as_echo_n "checking for kernel header at least $minimum_kernel... " >&6; }
   decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
   abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`;
   cat >conftest.$ac_ext <<_ACEOF
@@ -325,8 +297,8 @@ else
 fi
 rm -f conftest*
 
-  { echo "$as_me:$LINENO: result: $libc_minimum_kernel" >&5
-echo "${ECHO_T}$libc_minimum_kernel" >&6; }
+  { $as_echo "$as_me:$LINENO: result: $libc_minimum_kernel" >&5
+$as_echo "$libc_minimum_kernel" >&6; }
   if test "$libc_minimum_kernel" = ok; then
     cat >>confdefs.h <<_ACEOF
 #define __LINUX_KERNEL_VERSION $decnum
@@ -337,9 +309,9 @@ _ACEOF
 _ACEOF
 
   else
-    { { echo "$as_me:$LINENO: error: *** The available kernel headers are older than the requested
+    { { $as_echo "$as_me:$LINENO: error: *** The available kernel headers are older than the requested
 *** compatible kernel version" >&5
-echo "$as_me: error: *** The available kernel headers are older than the requested
+$as_echo "$as_me: error: *** The available kernel headers are older than the requested
 *** compatible kernel version" >&2;}
    { (exit 1); exit 1; }; }
   fi
@@ -469,8 +441,8 @@ if test $host = $build; then
   else
     ac_prefix=$ac_default_prefix
   fi
-  { echo "$as_me:$LINENO: checking for symlinks in ${ac_prefix}/include" >&5
-echo $ECHO_N "checking for symlinks in ${ac_prefix}/include... $ECHO_C" >&6; }
+  { $as_echo "$as_me:$LINENO: checking for symlinks in ${ac_prefix}/include" >&5
+$as_echo_n "checking for symlinks in ${ac_prefix}/include... " >&6; }
   ac_message=
   if test -L ${ac_prefix}/include/net; then
     ac_message="$ac_message
@@ -481,18 +453,18 @@ echo $ECHO_N "checking for symlinks in ${ac_prefix}/include... $ECHO_C" >&6; }
    ${ac_prefix}/include/scsi is a symlink"
   fi
   if test -n "$ac_message"; then
-    { { echo "$as_me:$LINENO: error: $ac_message
+    { { $as_echo "$as_me:$LINENO: error: $ac_message
 \`make install' will destroy the target of the link(s).
 Delete the links and re-run configure, or better still, move the entire
 ${ac_prefix}/include directory out of the way." >&5
-echo "$as_me: error: $ac_message
+$as_echo "$as_me: error: $ac_message
 \`make install' will destroy the target of the link(s).
 Delete the links and re-run configure, or better still, move the entire
 ${ac_prefix}/include directory out of the way." >&2;}
    { (exit 1); exit 1; }; }
   else
-    { echo "$as_me:$LINENO: result: ok" >&5
-echo "${ECHO_T}ok" >&6; }
+    { $as_echo "$as_me:$LINENO: result: ok" >&5
+$as_echo "ok" >&6; }
   fi
 fi
 
diff --git a/sysdeps/unix/sysv/linux/powerpc/configure b/sysdeps/unix/sysv/linux/powerpc/configure
index 070bf5caeb..df2813d9cd 100644
--- a/sysdeps/unix/sysv/linux/powerpc/configure
+++ b/sysdeps/unix/sysv/linux/powerpc/configure
@@ -2,10 +2,10 @@
  # Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
 
 
-echo "$as_me:$LINENO: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
-echo $ECHO_N "checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format... $ECHO_C" >&6
+{ $as_echo "$as_me:$LINENO: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
+$as_echo_n "checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format... " >&6; }
 if test "${libc_cv_mlong_double_128ibm+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  $as_echo_n "(cached) " >&6
 else
   save_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -mlong-double-128"
@@ -29,45 +29,42 @@ long double foobar (long double x) { return x; }
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
   ac_status=$?
   grep -v '^ *+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
   libc_cv_mlong_double_128ibm=yes
 else
-  echo "$as_me: failed program was:" >&5
+  $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-libc_cv_mlong_double_128ibm=no
+	libc_cv_mlong_double_128ibm=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 CFLAGS="$save_CFLAGS"
 fi
-echo "$as_me:$LINENO: result: $libc_cv_mlong_double_128ibm" >&5
-echo "${ECHO_T}$libc_cv_mlong_double_128ibm" >&6
+{ $as_echo "$as_me:$LINENO: result: $libc_cv_mlong_double_128ibm" >&5
+$as_echo "$libc_cv_mlong_double_128ibm" >&6; }
 
 if test "$libc_cv_mlong_double_128ibm" = no; then
-  echo "$as_me:$LINENO: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
-echo $ECHO_N "checking whether $CC $CFLAGS supports -mabi=ibmlongdouble... $ECHO_C" >&6
+  { $as_echo "$as_me:$LINENO: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
+$as_echo_n "checking whether $CC $CFLAGS supports -mabi=ibmlongdouble... " >&6; }
 if test "${libc_cv_mabi_ibmlongdouble+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
+  $as_echo_n "(cached) " >&6
 else
     save_CFLAGS="$CFLAGS"
   CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
@@ -91,45 +88,42 @@ long double foobar (long double x) { return x; }
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
+$as_echo "$ac_try_echo") >&5
+  (eval "$ac_compile") 2>conftest.er1
   ac_status=$?
   grep -v '^ *+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
+  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
   libc_cv_mabi_ibmlongdouble=yes
 else
-  echo "$as_me: failed program was:" >&5
+  $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-libc_cv_mabi_ibmlongdouble=no
+	libc_cv_mabi_ibmlongdouble=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   CFLAGS="$save_CFLAGS"
 fi
-echo "$as_me:$LINENO: result: $libc_cv_mabi_ibmlongdouble" >&5
-echo "${ECHO_T}$libc_cv_mabi_ibmlongdouble" >&6
+{ $as_echo "$as_me:$LINENO: result: $libc_cv_mabi_ibmlongdouble" >&5
+$as_echo "$libc_cv_mabi_ibmlongdouble" >&6; }
 
   if test "$libc_cv_mabi_ibmlongdouble" = yes; then
     CFLAGS="$CFLAGS -mabi=ibmlongdouble"
   else
-    { { echo "$as_me:$LINENO: error: this configuration requires -mlong-double-128 IBM extended format support" >&5
-echo "$as_me: error: this configuration requires -mlong-double-128 IBM extended format support" >&2;}
+    { { $as_echo "$as_me:$LINENO: error: this configuration requires -mlong-double-128 IBM extended format support" >&5
+$as_echo "$as_me: error: this configuration requires -mlong-double-128 IBM extended format support" >&2;}
    { (exit 1); exit 1; }; }
   fi
 fi