gdbsupport: re-indent ptrace.m4

For some reason, autoupdate isn't able to grok ptrace.m4:

    $ autoupdate ptrace.m4
    /usr/bin/m4:/tmp/auYjuodw/input.m4:171: ERROR: end of file in string
    autoupdate: /usr/bin/m4 failed with exit status: 1

Honestly, I'm unable to grok it either.  This patch re-indents it in a
way that I think is easier to read.  With this patch applied, autoupdate
becomes able to parse ptrace.m4, but I chose to keep this re-indent in a
patch of its own.

All the changes in generated configure files consist of insignificant
whitespace changes.

gdb/ChangeLog:

	* configure: Re-generate.

gdbserver/ChangeLog:

	* configure: Re-generate.

gdbsupport/ChangeLog:

	* configure: Re-generate.
	* ptrace.m4: Re-indent.

Change-Id: Ie2afab09fecc8b6d0cccccb47ac9756f3843881e

3 files changed, 90 insertions, 65 deletions

diff --git a/gdbsupport/ChangeLog b/gdbsupport/ChangeLog
index e03e07f..dbdb2ca 100644
--- a/gdbsupport/ChangeLog
+++ b/gdbsupport/ChangeLog
@@ -1,5 +1,10 @@
 2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
 
+	* configure: Re-generate.
+	* ptrace.m4: Re-indent.
+
+2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
+
 	* aclocal.m4: Re-generate.
 	* configure: Re-generate.
 	* configure.ac: Remove AM_PROG_CC_STDC.
diff --git a/gdbsupport/configure b/gdbsupport/configure
index 24e6e3e..e51c7b5 100755
--- a/gdbsupport/configure
+++ b/gdbsupport/configure
@@ -10044,25 +10044,29 @@ if ac_fn_c_try_compile "$LINENO"; then :
   gdb_cv_func_ptrace_ret='int'
 else
   gdb_cv_func_ptrace_ret='long'
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_ptrace_ret" >&5
 $as_echo "$gdb_cv_func_ptrace_ret" >&6; }
 
+
 cat >>confdefs.h <<_ACEOF
 #define PTRACE_TYPE_RET $gdb_cv_func_ptrace_ret
 _ACEOF
 
+
 # Check argument types.
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking types of arguments for ptrace" >&5
 $as_echo_n "checking types of arguments for ptrace... " >&6; }
 if ${gdb_cv_func_ptrace_args+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $gdb_ptrace_headers
@@ -10077,64 +10081,61 @@ _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   gdb_cv_func_ptrace_args='enum __ptrace_request,int,long,long'
 else
-
-for gdb_arg1 in 'int' 'long'; do
- for gdb_arg2 in 'pid_t' 'int' 'long'; do
-  for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
-   for gdb_arg4 in 'int' 'long' 'void *'; do
-     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  for gdb_arg1 in 'int' 'long'; do
+	for gdb_arg2 in 'pid_t' 'int' 'long'; do
+	  for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
+	    for gdb_arg4 in 'int' 'long' 'void *'; do
+	      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $gdb_ptrace_headers
 int
 main ()
 {
-
-extern $gdb_cv_func_ptrace_ret
-  ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
-
+extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
   gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
-    break 4;
+		 break 4;
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    for gdb_arg5 in 'int *' 'int' 'long'; do
-     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+
+	      for gdb_arg5 in 'int *' 'int' 'long'; do
+		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $gdb_ptrace_headers
 int
 main ()
 {
-
-extern $gdb_cv_func_ptrace_ret
-  ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
-
+extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_compile "$LINENO"; then :
+  gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
+		   break 5;
 
-gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
-    break 5;
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-    done
-   done
-  done
- done
-done
-# Provide a safe default value.
-: ${gdb_cv_func_ptrace_args='int,int,long,long'}
+	      done
+	    done
+	  done
+	done
+      done
+      # Provide a safe default value.
+      : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_ptrace_args" >&5
 $as_echo "$gdb_cv_func_ptrace_args" >&6; }
+
 ac_save_IFS=$IFS; IFS=','
 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
 IFS=$ac_save_IFS
diff --git a/gdbsupport/ptrace.m4 b/gdbsupport/ptrace.m4
index 0fcd855..57ed802 100644
--- a/gdbsupport/ptrace.m4
+++ b/gdbsupport/ptrace.m4
@@ -34,45 +34,64 @@ gdb_ptrace_headers='
 
 # Check return type.  Varargs (used on GNU/Linux) conflict with the
 # empty argument list, so check for that explicitly.
-AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
-  AC_TRY_COMPILE($gdb_ptrace_headers,
-    [extern long ptrace (enum __ptrace_request, ...);],
-    gdb_cv_func_ptrace_ret='long',
-    AC_TRY_COMPILE($gdb_ptrace_headers,
-      [extern int ptrace ();],
-      gdb_cv_func_ptrace_ret='int',
-      gdb_cv_func_ptrace_ret='long')))
-AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
-  [Define as the return type of ptrace.])
+AC_CACHE_CHECK(
+  [return type of ptrace],
+  [gdb_cv_func_ptrace_ret],
+  [AC_TRY_COMPILE(
+     [$gdb_ptrace_headers],
+     [extern long ptrace (enum __ptrace_request, ...);],
+     [gdb_cv_func_ptrace_ret='long'],
+     [AC_TRY_COMPILE(
+	[$gdb_ptrace_headers],
+	[extern int ptrace ();],
+	[gdb_cv_func_ptrace_ret='int'],
+	[gdb_cv_func_ptrace_ret='long']
+      )]
+   )]
+)
+
+AC_DEFINE_UNQUOTED(
+  [PTRACE_TYPE_RET],
+  [$gdb_cv_func_ptrace_ret],
+  [Define as the return type of ptrace.]
+)
+
 # Check argument types.
-AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
-  AC_TRY_COMPILE($gdb_ptrace_headers,
-    [extern long ptrace (enum __ptrace_request, ...);],
-    [gdb_cv_func_ptrace_args='enum __ptrace_request,int,long,long'],[
-for gdb_arg1 in 'int' 'long'; do
- for gdb_arg2 in 'pid_t' 'int' 'long'; do
-  for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
-   for gdb_arg4 in 'int' 'long' 'void *'; do
-     AC_TRY_COMPILE($gdb_ptrace_headers, [
-extern $gdb_cv_func_ptrace_ret
-  ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
-], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
-    break 4;])
-    for gdb_arg5 in 'int *' 'int' 'long'; do
-     AC_TRY_COMPILE($gdb_ptrace_headers, [
-extern $gdb_cv_func_ptrace_ret
-  ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
-], [
-gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
-    break 5;])
-    done
-   done
-  done
- done
-done
-# Provide a safe default value.
-: ${gdb_cv_func_ptrace_args='int,int,long,long'}
-])])
+AC_CACHE_CHECK(
+  [types of arguments for ptrace],
+  [gdb_cv_func_ptrace_args],
+  [AC_TRY_COMPILE(
+     [$gdb_ptrace_headers],
+     [extern long ptrace (enum __ptrace_request, ...);],
+     [gdb_cv_func_ptrace_args='enum __ptrace_request,int,long,long'],
+     [for gdb_arg1 in 'int' 'long'; do
+	for gdb_arg2 in 'pid_t' 'int' 'long'; do
+	  for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
+	    for gdb_arg4 in 'int' 'long' 'void *'; do
+	      AC_TRY_COMPILE(
+		[$gdb_ptrace_headers],
+		[extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);],
+		[gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
+		 break 4;]
+	      )
+
+	      for gdb_arg5 in 'int *' 'int' 'long'; do
+		AC_TRY_COMPILE(
+		  [$gdb_ptrace_headers],
+		  [extern $gdb_cv_func_ptrace_ret ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);],
+		  [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
+		   break 5;]
+		)
+	      done
+	    done
+	  done
+	done
+      done
+      # Provide a safe default value.
+      : ${gdb_cv_func_ptrace_args='int,int,long,long'}]
+   )]
+)
+
 ac_save_IFS=$IFS; IFS=','
 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
 IFS=$ac_save_IFS