X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=effect_chain.cpp;h=a5c3bbdcb08fc29700119c1625892519da73b39a;hp=0a01bd356e6066261910a60e4ee2af2813d428f5;hb=041500231054441f851b7c7260ab815dae6fb368;hpb=1b46606b3c5d6a7a97528a53d0309d3cd04df62b

diff --git a/effect_chain.cpp b/effect_chain.cpp
index 0a01bd3..a5c3bbd 100644
--- a/effect_chain.cpp
+++ b/effect_chain.cpp
@@ -1332,7 +1332,11 @@ void EffectChain::finalize()
 {
 	// Save the current locale, and set it to C, so that we can output decimal
 	// numbers with printf and be sure to get them in the format mandated by GLSL.
-	char *saved_locale = setlocale(LC_NUMERIC, "C");
+	// Note that the OpenGL driver might call setlocale() behind-the-scenes,
+	// and that might corrupt the returned pointer, so we need to take our own
+	// copy of it here.
+	char *saved_locale = strdup(setlocale(LC_NUMERIC, NULL));
+	setlocale(LC_NUMERIC, "C");
 
 	// Output the graph as it is before we do any conversions on it.
 	output_dot("step0-start.dot");
@@ -1397,6 +1401,7 @@ void EffectChain::finalize()
 	
 	finalized = true;
 	setlocale(LC_NUMERIC, saved_locale);
+	free(saved_locale);
 }
 
 void EffectChain::render_to_fbo(GLuint dest_fbo, unsigned width, unsigned height)