[committed] libstdc++: Fix orphaned/nested output of configure checks

[committed] libstdc++: Fix orphaned/nested output of configure checks

[Jonathan Wakely]

Tested x86_64-linux. Pushed to trunk.

-- >8 --

This moves two AC_MSG_RESULT lines for <uchar.h> features so that they
are only printed when the corresponding AC_MSG_CHECKING actually
happened. This fixes configure output like:

checking for uchar.h... no
no
checking for int64_t... yes

Also move the AC_MSG_CHECKING for libbacktrace support so it doesn't
come after AC_CHECK_HEADERS output. This fixes:

checking whether to build libbacktrace support... checking for sys/mman.h... (cached) yes
yes

libstdc++-v3/ChangeLog:

	* acinclude.m4 (GLIBCXX_CHECK_UCHAR_H): Don't use AC_MSG_RESULT
	unless the AC_MSG_CHECKING happened.
	* configure: Regenerate.
---
 libstdc++-v3/acinclude.m4 |  6 +++---
 libstdc++-v3/configure    | 12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index baf01913a90..b957c728ba1 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -2060,10 +2060,10 @@ AC_DEFUN([GLIBCXX_CHECK_UCHAR_H], [
 		   ],
 		   [], [ac_uchar_c8rtomb_mbrtoc8_fchar8_t=yes],
 		       [ac_uchar_c8rtomb_mbrtoc8_fchar8_t=no])
+    AC_MSG_RESULT($ac_uchar_c8rtomb_mbrtoc8_fchar8_t)
   else
     ac_uchar_c8rtomb_mbrtoc8_fchar8_t=no
   fi
-  AC_MSG_RESULT($ac_uchar_c8rtomb_mbrtoc8_fchar8_t)
   if test x"$ac_uchar_c8rtomb_mbrtoc8_fchar8_t" = x"yes"; then
     AC_DEFINE(_GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_FCHAR8_T, 1,
 	      [Define if c8rtomb and mbrtoc8 functions in <uchar.h> should be
@@ -2082,10 +2082,10 @@ AC_DEFUN([GLIBCXX_CHECK_UCHAR_H], [
 		   ],
 		   [], [ac_uchar_c8rtomb_mbrtoc8_cxx20=yes],
 		       [ac_uchar_c8rtomb_mbrtoc8_cxx20=no])
+    AC_MSG_RESULT($ac_uchar_c8rtomb_mbrtoc8_cxx20)
   else
     ac_uchar_c8rtomb_mbrtoc8_cxx20=no
   fi
-  AC_MSG_RESULT($ac_uchar_c8rtomb_mbrtoc8_cxx20)
   if test x"$ac_uchar_c8rtomb_mbrtoc8_cxx20" = x"yes"; then
     AC_DEFINE(_GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_CXX20, 1,
 	      [Define if c8rtomb and mbrtoc8 functions in <uchar.h> should be
@@ -5045,6 +5045,7 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
   if test "$enable_libstdcxx_backtrace" = "auto"; then
     enable_libstdcxx_backtrace=no
   fi
+  AC_MSG_RESULT($enable_libstdcxx_backtrace)
   if test "$enable_libstdcxx_backtrace" = "yes"; then
     BACKTRACE_SUPPORTED=1
 
@@ -5091,7 +5092,6 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
     BACKTRACE_USES_MALLOC=0
     BACKTRACE_SUPPORTS_THREADS=0
   fi
-  AC_MSG_RESULT($enable_libstdcxx_backtrace)
   GLIBCXX_CONDITIONAL(ENABLE_BACKTRACE, [test "$enable_libstdcxx_backtrace" = yes])
 ])
 
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 31ccff5da0d..1f7017c08a4 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -19215,11 +19215,11 @@ else
   ac_uchar_c8rtomb_mbrtoc8_fchar8_t=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_uchar_c8rtomb_mbrtoc8_fchar8_t" >&5
+$as_echo "$ac_uchar_c8rtomb_mbrtoc8_fchar8_t" >&6; }
   else
     ac_uchar_c8rtomb_mbrtoc8_fchar8_t=no
   fi
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_uchar_c8rtomb_mbrtoc8_fchar8_t" >&5
-$as_echo "$ac_uchar_c8rtomb_mbrtoc8_fchar8_t" >&6; }
   if test x"$ac_uchar_c8rtomb_mbrtoc8_fchar8_t" = x"yes"; then
 
 $as_echo "#define _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_FCHAR8_T 1" >>confdefs.h
@@ -19253,11 +19253,11 @@ else
   ac_uchar_c8rtomb_mbrtoc8_cxx20=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_uchar_c8rtomb_mbrtoc8_cxx20" >&5
+$as_echo "$ac_uchar_c8rtomb_mbrtoc8_cxx20" >&6; }
   else
     ac_uchar_c8rtomb_mbrtoc8_cxx20=no
   fi
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_uchar_c8rtomb_mbrtoc8_cxx20" >&5
-$as_echo "$ac_uchar_c8rtomb_mbrtoc8_cxx20" >&6; }
   if test x"$ac_uchar_c8rtomb_mbrtoc8_cxx20" = x"yes"; then
 
 $as_echo "#define _GLIBCXX_USE_UCHAR_C8RTOMB_MBRTOC8_CXX20 1" >>confdefs.h
@@ -71212,6 +71212,8 @@ $as_echo_n "checking whether to build libbacktrace support... " >&6; }
   if test "$enable_libstdcxx_backtrace" = "auto"; then
     enable_libstdcxx_backtrace=no
   fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_backtrace" >&5
+$as_echo "$enable_libstdcxx_backtrace" >&6; }
   if test "$enable_libstdcxx_backtrace" = "yes"; then
     BACKTRACE_SUPPORTED=1
 
@@ -71280,8 +71282,6 @@ $as_echo "#define HAVE_STACKTRACE 1" >>confdefs.h
     BACKTRACE_USES_MALLOC=0
     BACKTRACE_SUPPORTS_THREADS=0
   fi
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_backtrace" >&5
-$as_echo "$enable_libstdcxx_backtrace" >&6; }
 
 
 
-- 
2.38.1