Fix typo in config.h.in comment

	* acinclude.m4 (GLIBCXX_CHECK_S_ISREG_OR_S_IFREG): Fix typo in
	comment.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.

From-SVN: r246165

libstdc++-v3/ChangeLog

+2017-03-15  Jonathan Wakely  <jwakely@redhat.com>
+
+	* acinclude.m4 (GLIBCXX_CHECK_S_ISREG_OR_S_IFREG): Fix typo in
+	comment.
+	* config.h.in: Regenerate.
+	* configure: Regenerate.
+	* doc/Makefile.in: Regenerate.
+
 2017-03-14  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/79162

libstdc++-v3/acinclude.m4

@@ -397,7 +397,7 @@ AC_DEFUN([GLIBCXX_CHECK_S_ISREG_OR_S_IFREG], [
   res=no
   if test $glibcxx_cv_S_ISREG = yes; then
     AC_DEFINE(HAVE_S_ISREG, 1,
-	      [Define if S_IFREG is available in <sys/stat.h>.])
+	      [Define if S_ISREG is available in <sys/stat.h>.])
     res=S_ISREG
   elif test $glibcxx_cv_S_IFREG = yes; then
     AC_DEFINE(HAVE_S_IFREG, 1,

libstdc++-v3/config.h.in

@@ -454,7 +454,7 @@
 /* Define if S_IFREG is available in <sys/stat.h>. */
 #undef HAVE_S_IFREG
 
-/* Define if S_IFREG is available in <sys/stat.h>. */
+/* Define if S_ISREG is available in <sys/stat.h>. */
 #undef HAVE_S_ISREG
 
 /* Define to 1 if you have the `tanf' function. */

libstdc++-v3/configure

@@ -18391,7 +18391,7 @@ else
           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
-#include <math.h>
+             #include <math.h>
              #undef isnan
              namespace std {
                using ::isnan;

libstdc++-v3/doc/Makefile.in

@@ -539,7 +539,6 @@ xml_image_generated = \
 	${xml_image_dir}/pbds_tree_text_lor_find.png
 
 xml_images = ${xml_image_basic} ${xml_image_generated}
-
 xml_noinst = \
 	${xml_dir}/book.txml \
 	${xml_dir}/chapter.txml \