configure.ac (HAVE_HIDDEN_VISIBILITY): Test with -Werror in CFLAGS.

	* configure.ac (HAVE_HIDDEN_VISIBILITY): Test with -Werror in CFLAGS.
	* printf/printf_fp.c: Don't include <alloca.h>.
	* printf/quadmath-printf.h (_itoa): Redefine to __quadmath_itoa.
	* configure: Regenerated.

From-SVN: r170139

libquadmath/ChangeLog

 2011-02-14  Jakub Jelinek  <jakub@redhat.com>
 
+	* configure.ac (HAVE_HIDDEN_VISIBILITY): Test with -Werror in CFLAGS.
+	* printf/printf_fp.c: Don't include <alloca.h>.
+	* printf/quadmath-printf.h (_itoa): Redefine to __quadmath_itoa.
+	* configure: Regenerated.
+
 	PR fortran/47642
 	* libquadmath.texi (quadmath_snprintf): Document.
 	(quadmath_flt128tostr): Remove.

libquadmath/configure

@@ -12294,6 +12294,8 @@ $as_echo "#define HAVE_FETESTEXCEPT 1" >>confdefs.h
 fi
 
 # Check for hidden visibility (copied from libssp).
+saved_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether hidden visibility is supported" >&5
 $as_echo_n "checking whether hidden visibility is supported... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -12321,6 +12323,7 @@ if test x$quadmath_hidden = xyes; then
 $as_echo "#define HAVE_HIDDEN_VISIBILITY 1" >>confdefs.h
 
 fi
+CFLAGS="$saved_CFLAGS"
 
 # Check for symbol versioning (copied from libssp).
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether symbol versioning is supported" >&5

libquadmath/configure.ac

@@ -149,6 +149,8 @@ else
 fi
 
 # Check for hidden visibility (copied from libssp).
+saved_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror"
 AC_MSG_CHECKING([whether hidden visibility is supported])
 AC_TRY_COMPILE([
 void __attribute__((visibility ("hidden"))) bar (void) {}],,
@@ -157,6 +159,7 @@ AC_MSG_RESULT($quadmath_hidden)
 if test x$quadmath_hidden = xyes; then
   AC_DEFINE([HAVE_HIDDEN_VISIBILITY],[1],[__attribute__((visibility ("hidden"))) supported])
 fi
+CFLAGS="$saved_CFLAGS"
 
 # Check for symbol versioning (copied from libssp).
 AC_MSG_CHECKING([whether symbol versioning is supported])

libquadmath/printf/printf_fp.c

@@ -20,7 +20,6 @@
    02111-1307 USA.  */
 
 #include <config.h>
-#include <alloca.h>
 #include <float.h>
 #include <math.h>
 #include <string.h>

libquadmath/printf/quadmath-printf.h

@@ -165,3 +165,6 @@ __quadmath_do_putc (struct __quadmath_printf_file *fp, int wide,
 
 #define nl_langinfo_wc(x) \
   ({ union { const char *mb; wchar_t wc; } u; u.mb = nl_langinfo (x); u.wc; })
+
+#undef _itoa
+#define _itoa __quadmath_itoa