Split freetype bindings into rust-freetype submodule.

.gitmodules

@@ -67,3 +67,6 @@
 [submodule "src/rust-core-text"]
 	path = src/rust-core-text
 	url = git://github.com/mozilla-servo/rust-core-text.git
+[submodule "src/rust-freetype"]
+	path = src/rust-freetype
+	url = git://github.com/mozilla-servo/rust-freetype.git

configure

@@ -351,6 +351,11 @@ then
 CFG_SUBMODULES="rust-cocoa rust-io-surface rust-core-foundation rust-core-graphics rust-core-text ${CFG_SUBMODULES}"
 fi
 
+if [ $CFG_OSTYPE = "linux" ]
+then
+CFG_SUBMODULES="rust-freetype ${CFG_SUBMODULES}"
+fi
+
 step_msg "making build directories"
 
 cd "${CFG_BUILD_DIR}"

mk/sub.mk

@@ -1,3 +1,9 @@
+# NOTE: the make magic can only compute transitive build dependencies,
+# not transitive link flags. So, if A -> B -> C, must add A as a dep
+# of C so the correct -L/path/to/A flag is generated for building C.
+
+# NB. This should not be a problem once a real package system exists.
+
 DEPS_rust-azure += \
 	rust-geom
 
@@ -60,3 +66,13 @@ DEPS_rust-core-text += \
 	rust-core-foundation \
 	rust-core-graphics
 endif
+
+ifeq ($(CFG_OSTYPE),linux)
+DEPS_rust-azure += \
+	rust-freetype
+
+# See note at top of file
+DEPS_rust-layers += \
+	rust-freetype
+
+endif

src/rust-azure

@@ -1 +1 @@
-Subproject commit 702a173e7b2f0fa61a47205bd79da30d5522bfa8
+Subproject commit ec3f31b7f360d2f78343aec074b700ff2c8c3b3d

src/rust-freetype

@@ -0,0 +1 @@
+Subproject commit a524e86e58020b9a5d7832f87fa90988703d1e0a

src/servo/text/font_cache.rs

@@ -1,4 +1,5 @@
-export FontCache, native;
+extern mod freetype;
+
 use font::{Font, test_font_bin};
 
 struct FontCache {
@@ -50,7 +51,6 @@ fn create_font(lib: @FontCache, native_lib: &native::NativeFontCache) -> Result<
 #[cfg(target_os = "linux")]
 pub mod native {
     use ptr::{null, addr_of};
-    use azure::freetype;
     use freetype::{FT_Library, FT_Error};
     use freetype::bindgen::{FT_Init_FreeType, FT_Done_FreeType};
 

src/servo/text/native_font/ft_native_font.rs

@@ -1,5 +1,5 @@
-#[legacy_exports];
+
-export FreeTypeNativeFont, with_test_native_font, create;
+extern mod freetype;
 
 use font::{FontMetrics, FractionalPixel};
 
@@ -11,7 +11,6 @@ use ptr::{addr_of, null};
 use cast::reinterpret_cast;
 use glyph::GlyphIndex;
 use font::FontMetrics;
-use azure::freetype;
 use freetype::{ FT_Error, FT_Library, FT_Face, FT_Long, FT_ULong, FT_Size, FT_SizeRec,
                FT_UInt, FT_GlyphSlot, FT_Size_Metrics, FT_FaceRec };
 use freetype::bindgen::{
@@ -32,7 +31,7 @@ fn fixed_to_float_ft(f: i32) -> float {
     fixed_to_float(6, f)
 }
 
-struct FreeTypeNativeFont {
+pub struct FreeTypeNativeFont {
     /// The font binary. This must stay valid for the lifetime of the font
     buf: @~[u8],
     face: FT_Face,
@@ -45,12 +44,12 @@ struct FreeTypeNativeFont {
     }
 }
 
-fn FreeTypeNativeFont(face: FT_Face, buf: @~[u8]) -> FreeTypeNativeFont {
+pub fn FreeTypeNativeFont(face: FT_Face, buf: @~[u8]) -> FreeTypeNativeFont {
     assert face.is_not_null();
     FreeTypeNativeFont { buf: buf, face: face }
 }
 
-impl FreeTypeNativeFont {
+pub impl FreeTypeNativeFont {
 
     fn glyph_index(codepoint: char) -> Option<GlyphIndex> {
         assert self.face.is_not_null();
@@ -155,7 +154,7 @@ impl FT_Error : FTErrorMethods {
     fn succeeded() -> bool { self == 0 as FT_Error }
 }
 
-fn with_test_native_font(f: fn@(nf: &NativeFont)) {
+pub fn with_test_native_font(f: fn@(nf: &NativeFont)) {
     use font::test_font_bin;
     use unwrap_result = result::unwrap;