* printf/quadmath-printf.c: Also check __GLIBC__ when checking

	whether workarounds for printf hook handling should be added.

	* configure.ac: Check for locale.h too.
	(USE_LOCALE_SUPPORT): Remove check.
	(USE_NL_LANGINFO, USE_NL_LANGINFO_WC, USE_LOCALECONV): New checks.
	(USE_I18_NUMBER_H): Check also for _NL_CTYPE_MB_CUR_MAX.
	* printf/printf_fphex.c (__quadmath_printf_fphex): Use nl_langinfo
	or localeconv for narrow version and nl_langinfo if USE_NL_LANGINFO_WC
	for wide version.
	* printf/quadmath-printf.h: Include locale.h if HAVE_LOCALE_H.
	* printf/printf_fp.c (USE_I18N_NUMBER_H): Don't define to 0.
	(__quadmath_printf_fp): Use nl_langinfo or localeconv for narrow
	version and nl_langinfo if USE_NL_LANGINFO_WC for wide version.
	Guard nl_langinfo (_NL_CTYPE_MB_CUR_MAX) use with
	USE_I18N_NUMBER_H #ifdef.
	* configure: Regenerated.
	* config.h.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@170211 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 115 insertions, 30 deletions

diff --git a/libquadmath/printf/printf_fp.c b/libquadmath/printf/printf_fp.c
index 4d0bf18ce48..4a63be9f8a3 100644
--- a/libquadmath/printf/printf_fp.c
+++ b/libquadmath/printf/printf_fp.c
@@ -37,8 +37,6 @@
 
 #ifdef USE_I18N_NUMBER_H
 #include "_i18n_number.h"
-#else
-#define USE_I18N_NUMBER_H 0
 #endif
 
 
@@ -227,30 +225,48 @@ __quadmath_printf_fp (struct __quadmath_printf_file *fp,
     }
 
   /* Figure out the decimal point character.  */
-#ifdef USE_LOCALE_SUPPORT
+#ifdef USE_NL_LANGINFO
   if (info->extra == 0)
-    {
-      decimal = nl_langinfo (DECIMAL_POINT);
-      decimalwc = nl_langinfo_wc (_NL_NUMERIC_DECIMAL_POINT_WC);
-    }
+    decimal = nl_langinfo (DECIMAL_POINT);
   else
     {
       decimal = nl_langinfo (MON_DECIMAL_POINT);
       if (*decimal == '\0')
 	decimal = nl_langinfo (DECIMAL_POINT);
+    }
+  /* The decimal point character must never be zero.  */
+  assert (*decimal != '\0');
+#elif defined USE_LOCALECONV
+  const struct lconv *lc = localeconv ();
+  if (info->extra == 0)
+    decimal = lc->decimal_point;
+  else
+    {
+      decimal = lc->mon_decimal_point;
+      if (decimal == NULL || *decimal == '\0')
+	decimal = lc->decimal_point;
+    }
+  if (decimal == NULL || *decimal == '\0')
+    decimal = ".";
+#else
+  decimal = ".";
+#endif
+#ifdef USE_NL_LANGINFO_WC
+  if (info->extra == 0)
+    decimalwc = nl_langinfo_wc (_NL_NUMERIC_DECIMAL_POINT_WC);
+  else
+    {
       decimalwc = nl_langinfo_wc (_NL_MONETARY_DECIMAL_POINT_WC);
       if (decimalwc == L_('\0'))
 	decimalwc = nl_langinfo_wc (_NL_NUMERIC_DECIMAL_POINT_WC);
     }
-  /* The decimal point character must not be zero.  */
-  assert (*decimal != '\0');
+  /* The decimal point character must never be zero.  */
   assert (decimalwc != L_('\0'));
 #else
-  decimal = ".";
   decimalwc = L_('.');
 #endif
 
-#ifdef USE_LOCALE_SUPPORT
+#if defined USE_NL_LANGINFO && defined USE_NL_LANGINFO_WC
   if (info->group)
     {
       if (info->extra == 0)
@@ -269,6 +285,9 @@ __quadmath_printf_fp (struct __quadmath_printf_file *fp,
 		thousands_sepwc = nl_langinfo_wc (_NL_NUMERIC_THOUSANDS_SEP_WC);
 	      else
 		thousands_sepwc = nl_langinfo_wc (_NL_MONETARY_THOUSANDS_SEP_WC);
+
+	      if (thousands_sepwc == L_('\0'))
+		grouping = NULL;
 	    }
 	  else
 	    {
@@ -276,22 +295,66 @@ __quadmath_printf_fp (struct __quadmath_printf_file *fp,
 		thousands_sep = nl_langinfo (THOUSANDS_SEP);
 	      else
 		thousands_sep = nl_langinfo (MON_THOUSANDS_SEP);
+	      if (*thousands_sep == '\0')
+		grouping = NULL;
 	    }
+	}
+    }
+  else
+#elif defined USE_NL_LANGINFO
+  if (info->group && !wide)
+    {
+      if (info->extra == 0)
+	grouping = nl_langinfo (GROUPING);
+      else
+	grouping = nl_langinfo (MON_GROUPING);
+
+      if (*grouping <= 0 || *grouping == CHAR_MAX)
+	grouping = NULL;
+      else
+	{
+	  /* Figure out the thousands separator character.  */
+	  if (info->extra == 0)
+	    thousands_sep = nl_langinfo (THOUSANDS_SEP);
+	  else
+	    thousands_sep = nl_langinfo (MON_THOUSANDS_SEP);
+
+	  if (*thousands_sep == '\0')
+	    grouping = NULL;
+	}
+    }
+  else
+#elif defined USE_LOCALECONV
+  if (info->group && !wide)
+    {
+      if (info->extra == 0)
+	grouping = lc->grouping;
+      else
+	grouping = lc->mon_grouping;
+
+      if (grouping == NULL || *grouping <= 0 || *grouping == CHAR_MAX)
+	grouping = NULL;
+      else
+	{
+	  /* Figure out the thousands separator character.  */
+	  if (info->extra == 0)
+	    thousands_sep = lc->thousands_sep;
+	  else
+	    thousands_sep = lc->mon_thousands_sep;
 
-	  if ((wide && thousands_sepwc == L_('\0'))
-	      || (! wide && *thousands_sep == '\0'))
+	  if (thousands_sep == NULL || *thousands_sep == '\0')
 	    grouping = NULL;
-	  else if (thousands_sepwc == L_('\0'))
-	    /* If we are printing multibyte characters and there is a
-	       multibyte representation for the thousands separator,
-	       we must ensure the wide character thousands separator
-	       is available, even if it is fake.  */
-	    thousands_sepwc = (wchar_t) 0xfffffffe;
 	}
     }
   else
 #endif
     grouping = NULL;
+  if (grouping != NULL && !wide)
+    /* If we are printing multibyte characters and there is a
+       multibyte representation for the thousands separator,
+       we must ensure the wide character thousands separator
+       is available, even if it is fake.  */
+    thousands_sepwc = (wchar_t) 0xfffffffe;
 
   /* Fetch the argument value.	*/
     {
@@ -1095,8 +1158,8 @@ __quadmath_printf_fp (struct __quadmath_printf_file *fp,
 	  size_t decimal_len;
 	  size_t thousands_sep_len;
 	  wchar_t *copywc;
-#ifdef USE_LOCALE_SUPPORT
-	  size_t factor = ((info->i18n && USE_I18N_NUMBER_H)
+#ifdef USE_I18N_NUMBER_H
+	  size_t factor = (info->i18n
 			   ? nl_langinfo_wc (_NL_CTYPE_MB_CUR_MAX)
 			   : 1);
 #else
diff --git a/libquadmath/printf/printf_fphex.c b/libquadmath/printf/printf_fphex.c
index 44900f49cc5..941e93307e0 100644
--- a/libquadmath/printf/printf_fphex.c
+++ b/libquadmath/printf/printf_fphex.c
@@ -117,25 +117,44 @@ __quadmath_printf_fphex (struct __quadmath_printf_file *fp,
   int wide = info->wide;
 
   /* Figure out the decimal point character.  */
-#ifdef USE_LOCALE_SUPPORT
+#ifdef USE_NL_LANGINFO
   if (info->extra == 0)
-    {
-      decimal = nl_langinfo (DECIMAL_POINT);
-      decimalwc = nl_langinfo_wc (_NL_NUMERIC_DECIMAL_POINT_WC);
-    }
+    decimal = nl_langinfo (DECIMAL_POINT);
   else
     {
       decimal = nl_langinfo (MON_DECIMAL_POINT);
       if (*decimal == '\0')
 	decimal = nl_langinfo (DECIMAL_POINT);
+    }
+  /* The decimal point character must never be zero.  */
+  assert (*decimal != '\0');
+#elif defined USE_LOCALECONV
+  const struct lconv *lc = localeconv ();
+  if (info->extra == 0)
+    decimal = lc->decimal_point;
+  else
+    {
+      decimal = lc->mon_decimal_point;
+      if (decimal == NULL || *decimal == '\0')
+	decimal = lc->decimal_point;
+    }
+  if (decimal == NULL || *decimal == '\0')
+    decimal = ".";
+#else
+  decimal = ".";
+#endif
+#ifdef USE_NL_LANGINFO_WC
+  if (info->extra == 0)
+    decimalwc = nl_langinfo_wc (_NL_NUMERIC_DECIMAL_POINT_WC);
+  else
+    {
       decimalwc = nl_langinfo_wc (_NL_MONETARY_DECIMAL_POINT_WC);
-      if (decimalwc == L'\0')
+      if (decimalwc == L_('\0'))
 	decimalwc = nl_langinfo_wc (_NL_NUMERIC_DECIMAL_POINT_WC);
     }
   /* The decimal point character must never be zero.  */
-  assert (*decimal != '\0' && decimalwc != L'\0');
+  assert (decimalwc != L_('\0'));
 #else
-  decimal = ".";
   decimalwc = L_('.');
 #endif
 
diff --git a/libquadmath/printf/quadmath-printf.c b/libquadmath/printf/quadmath-printf.c
index 4f5305edee4..750dc246fcc 100644
--- a/libquadmath/printf/quadmath-printf.c
+++ b/libquadmath/printf/quadmath-printf.c
@@ -292,7 +292,7 @@ flt128_ais (const struct printf_info *info, size_t n __attribute__ ((unused)),
       size[0] = sizeof (__float128);
       return 1;
     }
-#if __GLIBC_MINOR__ <= 13
+#if __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 13)
   /* Workaround bug in glibc printf hook handling.  */
   size[0] = -1;
   switch (info->spec)
diff --git a/libquadmath/printf/quadmath-printf.h b/libquadmath/printf/quadmath-printf.h
index 796df200027..05fed7aaf07 100644
--- a/libquadmath/printf/quadmath-printf.h
+++ b/libquadmath/printf/quadmath-printf.h
@@ -38,6 +38,9 @@ Boston, MA 02110-1301, USA.  */
 #ifdef HAVE_PRINTF_HOOKS
 #include <printf.h>
 #endif
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
+#endif
 #include "quadmath-imp.h"
 #include "gmp-impl.h"