util: port _mesa_strto[df] to C

_mesa_strtod and _mesa_strtof are only used from the GLSL compiler and
the ARB_[vertex|fragment]_program code, meaning that the locale doesn't
need to be initialized before the first OpenGL context gets initialized.

So let's use explicit initialization from the one-time init code instead
of depending on a C++ compiler to initialize at image-load time.

Signed-off-by: Erik Faye-Lund <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Brian Paul <[email protected]>

3 files changed, 12 insertions, 7 deletions

diff --git a/src/util/Makefile.sources b/src/util/Makefile.sources
index dc559391823..82df3bcb00a 100644
--- a/src/util/Makefile.sources
+++ b/src/util/Makefile.sources
@@ -19,7 +19,7 @@ MESA_UTIL_FILES :=	\
 	set.c \
 	set.h \
 	simple_list.h \
-	strtod.cpp \
+	strtod.c \
 	strtod.h \
 	texcompress_rgtc_tmp.h \
 	u_atomic.h
diff --git a/src/util/strtod.cpp b/src/util/strtod.c
index 2b4dd982a80..a4a60e0404a 100644
--- a/src/util/strtod.cpp
+++ b/src/util/strtod.c
@@ -30,18 +30,20 @@
 #include <locale.h>
 #ifdef HAVE_XLOCALE_H
 #include <xlocale.h>
+static locale_t loc;
 #endif
 #endif
 
 #include "strtod.h"
 
 
+void
+_mesa_locale_init(void)
+{
 #if defined(_GNU_SOURCE) && defined(HAVE_XLOCALE_H)
-static struct locale_initializer {
-   locale_initializer() { loc = newlocale(LC_CTYPE_MASK, "C", NULL); }
-   locale_t loc;
-} loc_init;
+   loc = newlocale(LC_CTYPE_MASK, "C", NULL);
 #endif
+}
 
 /**
  * Wrapper around strtod which uses the "C" locale so the decimal
@@ -51,7 +53,7 @@ double
 _mesa_strtod(const char *s, char **end)
 {
 #if defined(_GNU_SOURCE) && defined(HAVE_XLOCALE_H)
-   return strtod_l(s, end, loc_init.loc);
+   return strtod_l(s, end, loc);
 #else
    return strtod(s, end);
 #endif
@@ -66,7 +68,7 @@ float
 _mesa_strtof(const char *s, char **end)
 {
 #if defined(_GNU_SOURCE) && defined(HAVE_XLOCALE_H)
-   return strtof_l(s, end, loc_init.loc);
+   return strtof_l(s, end, loc);
 #elif defined(HAVE_STRTOF)
    return strtof(s, end);
 #else
diff --git a/src/util/strtod.h b/src/util/strtod.h
index 02c25ddb78f..b7e2beb5f30 100644
--- a/src/util/strtod.h
+++ b/src/util/strtod.h
@@ -31,6 +31,9 @@
 extern "C" {
 #endif
 
+extern void
+_mesa_locale_init(void);
+
 extern double
 _mesa_strtod(const char *s, char **end);