Fix a bunch of -Wunused-but-set-variable warnings.

core/src/fxge/ge/fx_ge_text.cpp

Index: core/src/fxge/ge/fx_ge_text.cpp
diff --git a/core/src/fxge/ge/fx_ge_text.cpp b/core/src/fxge/ge/fx_ge_text.cpp
index 21eebb763002f7aa88ef04639e87b4c0d78d6f6a..28015d6f5e637af4d463fd23b3a156bbfe06ef7a 100644
--- a/core/src/fxge/ge/fx_ge_text.cpp
+++ b/core/src/fxge/ge/fx_ge_text.cpp
@@ -1189,12 +1189,12 @@ void CFX_Font::AdjustMMParams(int glyph_index, int dest_width, int weight)
         int min_param = FXFT_Get_MM_Axis_Min(FXFT_Get_MM_Axis(pMasters, 1)) / 65536;
         int max_param = FXFT_Get_MM_Axis_Max(FXFT_Get_MM_Axis(pMasters, 1)) / 65536;
         coords[1] = min_param;
-        int error = FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
-        error = FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
+        FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);

[Lei Zhang, 2015/04/17 00:34:10]

Maybe we should check here?

[Tom Sepez, 2015/04/17 16:20:17]

Maybe at least:
     (void) FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
etc. to indicate deliberately ignoring error for now.

[Lei Zhang, 2015/05/08 05:40:38]

I'll try to fix this separately later.

+        FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
         int min_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / FXFT_Get_Face_UnitsPerEM(m_Face);
         coords[1] = max_param;
-        error = FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
-        error = FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
+        FXFT_Set_MM_Design_Coordinates(m_Face, 2, coords);
+        FXFT_Load_Glyph(m_Face, glyph_index, FXFT_LOAD_NO_SCALE | FXFT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH);
         int max_width = FXFT_Get_Glyph_HoriAdvance(m_Face) * 1000 / FXFT_Get_Face_UnitsPerEM(m_Face);
         if (max_width == min_width) {
             return;