re PR libgcc/65038 ([regression 5] Unable to find ftw.h for libgcov-util.c)

	PR target/65038
	* config.in: Regenerated.
	* configure: Likewise.
	* configure.ac (AC_HEADER_STDC): Add explicit.
	(AC_CHECK_HEADERS): Check for default headers
	plus for ftw.h one.
	* libgcov-util.c (gcov_read_profile_dir): Disable use
	of ftw-function, if header not found.
	(ftw_read_file): Don't translate if ftw header isn't
	present.

From-SVN: r221055

libgcc/ChangeLog

+2015-02-27  Kai Tietz  <ktietz@redhat.com>
+
+	PR target/65038
+	* config.in: Regenerated.
+	* configure: Likewise.
+	* configure.ac (AC_HEADER_STDC): Add explicit.
+	(AC_CHECK_HEADERS): Check for default headers
+	plus for ftw.h one.
+	* libgcov-util.c (gcov_read_profile_dir): Disable use
+	of ftw-function, if header not found.
+	(ftw_read_file): Don't translate if ftw header isn't
+	present.
+
 2015-02-23  Thomas Schwinge  <thomas@codesourcery.com>
 
 	PR target/65181

libgcc/config.in

@@ -3,6 +3,9 @@
 /* Define to 1 if the target assembler supports thread-local storage. */
 #undef HAVE_CC_TLS
 
+/* Define to 1 if you have the <ftw.h> header file. */
+#undef HAVE_FTW_H
+
 /* Define if _Unwind_GetIPInfo is available. */
 #undef HAVE_GETIPINFO
 

libgcc/configure.ac

@@ -47,6 +47,12 @@ AC_SUBST(libgcc_topdir)
 AC_CONFIG_AUX_DIR($libgcc_topdir)
 AC_CONFIG_HEADER(auto-target.h:config.in)
 
+AC_CHECK_HEADERS(inttypes.h \
+		 stdint.h stdlib.h \
+		 ftw.h unistd.h sys/stat.h sys/types.h \
+		 string.h strings.h memory.h)
+AC_HEADER_STDC
+
 AC_ARG_ENABLE(shared,
 [  --disable-shared        don't provide a shared libgcc],
 [

libgcc/libgcov-util.c

@@ -52,7 +52,9 @@ void gcov_set_verbose (void)
 
 #include "obstack.h"
 #include <unistd.h>
+#ifdef HAVE_FTW_H
 #include <ftw.h>
+#endif
 
 static void tag_function (unsigned, unsigned);
 static void tag_blocks (unsigned, unsigned);
@@ -380,6 +382,7 @@ read_gcda_file (const char *filename)
   return obj_info;
 }
 
+#ifdef HAVE_FTW_H
 /* This will be called by ftw(). It opens and read a gcda file FILENAME.
    Return a non-zero value to stop the tree walk.  */
 
@@ -417,6 +420,7 @@ ftw_read_file (const char *filename,
 
   return 0;
 }
+#endif
 
 /* Initializer for reading a profile dir.  */
 
@@ -451,7 +455,9 @@ gcov_read_profile_dir (const char* dir_name, int recompute_summary ATTRIBUTE_UNU
       fnotice (stderr, "%s is not a directory\n", dir_name);
       return NULL;
     }
+#ifdef HAVE_FTW_H
   ftw (".", ftw_read_file, 50);
+#endif
   ret = chdir (pwd);
   free (pwd);