gentoo-overlay/media-libs/rply/files/rply-1.01-lc_numeric.patch

From 8a7a76b7dcc94e8e71725e26a146330c73377ebd Mon Sep 17 00:00:00 2001
From: Alexandre Rostovtsev <tetromino@gmail.com>
Date: Mon, 26 Sep 2011 04:46:44 -0400
Subject: [PATCH 2/2] Switch LC_NUMERIC locale to "C" for decimal point
 separator safety

Make sure to switch the LC_NUMERIC locale to "C" when using strtod() and
fpritnf("%g",...) to ensure that '.' is used as the decimal point
separator when reading and writing .ply files.
---
 rply.c |   31 +++++++++++++++++++++++++++----
 1 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/rply.c b/rply.c
index 9eaa77f..789c002 100644
--- a/rply.c
+++ b/rply.c
@@ -12,6 +12,7 @@
 #include <string.h>
 #include <limits.h>
 #include <float.h>
+#include <locale.h>
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stddef.h>
@@ -1229,13 +1230,27 @@ static int oascii_uint32(p_ply ply, double value) {
 }
 
 static int oascii_float32(p_ply ply, double value) {
+    char *curr_locale;
+    int ret;
     if (value < -FLT_MAX || value > FLT_MAX) return 0;
-    return fprintf(ply->fp, "%g ", (float) value) > 0;
+    /* Switch locale to C to use '.' as the decimal point separator */
+    curr_locale = setlocale(LC_NUMERIC, NULL);
+    setlocale(LC_NUMERIC, "C");
+    ret = fprintf(ply->fp, "%g ", (float) value);
+    setlocale(LC_NUMERIC, curr_locale);
+    return ret > 0;
 }
 
 static int oascii_float64(p_ply ply, double value) {
+    char *curr_locale;
+    int ret;
     if (value < -DBL_MAX || value > DBL_MAX) return 0;
-    return fprintf(ply->fp, "%g ", value) > 0;
+    /* Switch locale to C to use '.' as the decimal point separator */
+    curr_locale = setlocale(LC_NUMERIC, NULL);
+    setlocale(LC_NUMERIC, "C");
+    ret = fprintf(ply->fp, "%g ", value);
+    setlocale(LC_NUMERIC, curr_locale);
+    return ret > 0;
 }
 
 static int obinary_int8(p_ply ply, double value) {
@@ -1336,17 +1351,25 @@ static int iascii_uint32(p_ply ply, double *value) {
 }
 
 static int iascii_float32(p_ply ply, double *value) {
-    char *end;
+    char *end, *curr_locale;
     if (!ply_read_word(ply)) return 0;
+    /* Switch locale to C to use '.' as the decimal point separator */
+    curr_locale = setlocale(LC_NUMERIC, NULL);
+    setlocale(LC_NUMERIC, "C");
     *value = strtod(BWORD(ply), &end);
+    setlocale(LC_NUMERIC, curr_locale);
     if (*end || *value < -FLT_MAX || *value > FLT_MAX) return 0;
     return 1;
 }
 
 static int iascii_float64(p_ply ply, double *value) {
-    char *end;
+    char *end, *curr_locale;
     if (!ply_read_word(ply)) return 0;
+    /* Switch locale to C to use '.' as the decimal point separator */
+    curr_locale = setlocale(LC_NUMERIC, NULL);
+    setlocale(LC_NUMERIC, "C");
     *value = strtod(BWORD(ply), &end);
+    setlocale(LC_NUMERIC, curr_locale);
     if (*end || *value < -DBL_MAX || *value > DBL_MAX) return 0;
     return 1;
 }
-- 
1.7.6.1