Add Pango version check for Fl_PostScript_Graphics_Driver

2 files changed, 5 insertions, 2 deletions

diff --git a/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx b/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
index a85d70e4c..a991edab1 100644
--- a/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
+++ b/src/drivers/Cairo/Fl_Cairo_Graphics_Driver.cxx
@@ -1157,7 +1157,7 @@ void Fl_Cairo_Graphics_Driver::draw(const char* str, int n, float x, float y) {
   // The -0.5 below makes underscores visible in Fl_Text_Display at scale = 1
   cairo_translate(cairo_, x, y - height() + descent() -0.5);
   pango_layout_set_text(pango_layout_, str, n);
-  pango_cairo_show_layout(cairo_, pango_layout_);
+  pango_cairo_show_layout(cairo_, pango_layout_); // 1.1O
   cairo_restore(cairo_);
   surface_needs_commit();
 }
diff --git a/src/drivers/PostScript/Fl_PostScript.cxx b/src/drivers/PostScript/Fl_PostScript.cxx
index 7b69f5173..3d0b15f59 100644
--- a/src/drivers/PostScript/Fl_PostScript.cxx
+++ b/src/drivers/PostScript/Fl_PostScript.cxx
@@ -32,6 +32,9 @@
 #include <FL/math.h> // for M_PI
 #include <pango/pangocairo.h>
 #include <cairo/cairo-ps.h>
+#  if ! PANGO_VERSION_CHECK(1,22,0)
+#    error "Requires Pango 1.22 or higher"
+#  endif
 #endif
 
 const char *Fl_PostScript_File_Device::file_chooser_title = "Select a .ps file";
@@ -1536,7 +1539,7 @@ void Fl_PostScript_Graphics_Driver::transformed_draw(const char* str, int n, dou
     cairo_translate(cairo_, x, y - height() + descent());
     s = (s/pwidth) * PANGO_SCALE;
     cairo_scale(cairo_, s, s);
-    pango_cairo_show_layout(cairo_, pango_layout_);
+    pango_cairo_show_layout(cairo_, pango_layout_); // 1.10
   }
   cairo_restore(cairo_);
   check_status();