[librsvg/librsvg-2.42] (#259): Make test fonts work for installed tests

[Federico Mena Quintero <federico src gnome org>]

commit 48b261eda6f48cdef47761cbb7ce835574c443fd
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Jun 20 17:31:16 2018 -0500

    (#259): Make test fonts work for installed tests
    
    Don't hardcode the font locations based on the SRCDIR; actually
    compute their locations with g_test_build_filename().
    
    https://gitlab.gnome.org/GNOME/librsvg/issues/259

 librsvg/rsvg-cairo-draw.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)
---
diff --git a/librsvg/rsvg-cairo-draw.c b/librsvg/rsvg-cairo-draw.c
index 62ae6de2..b498f333 100644
--- a/librsvg/rsvg-cairo-draw.c
+++ b/librsvg/rsvg-cairo-draw.c
@@ -96,10 +96,10 @@ static void
 create_font_config_for_testing (RsvgCairoRender *render)
 {
     const char *font_paths[] = {
-        SRCDIR "/tests/resources/Roboto-Regular.ttf",
-        SRCDIR "/tests/resources/Roboto-Italic.ttf",
-        SRCDIR "/tests/resources/Roboto-Bold.ttf",
-        SRCDIR "/tests/resources/Roboto-BoldItalic.ttf",
+        "resources/Roboto-Regular.ttf",
+        "resources/Roboto-Italic.ttf",
+        "resources/Roboto-Bold.ttf",
+        "resources/Roboto-BoldItalic.ttf",
     };
 
     int i;
@@ -110,9 +110,13 @@ create_font_config_for_testing (RsvgCairoRender *render)
     render->font_config_for_testing = FcConfigCreate ();
 
     for (i = 0; i < G_N_ELEMENTS(font_paths); i++) {
-        if (!FcConfigAppFontAddFile (render->font_config_for_testing, (const FcChar8 *) font_paths[i])) {
-            g_error ("Could not load font file \"%s\" for tests; aborting", font_paths[i]);
+        char *font_path = g_test_build_filename (G_TEST_DIST, font_paths[i], NULL);
+
+        if (!FcConfigAppFontAddFile (render->font_config_for_testing, (const FcChar8 *) font_path)) {
+            g_error ("Could not load font file \"%s\" for tests; aborting", font_path);
         }
+
+        g_free (font_path);
     }
 }