Update gcc crate dependency to 0.3.27.

This is to pull in changes to support ARM MUSL targets.

This change also commits a couple of other cargo-generated changes
to other dependencies in the various Cargo.toml files.

Author: timonvo

src/bootstrap/Cargo.lock

@@ -29,6 +29,6 @@ getopts = "0.2"
 rustc-serialize = "0.3"
 winapi = "0.2"
 kernel32-sys = "0.2"
-gcc = "0.3.17"
+gcc = "0.3.27"
 libc = "0.2"
 md5 = "0.1"

src/bootstrap/Cargo.toml

@@ -16,7 +16,7 @@ libc = { path = "../rustc/libc_shim" }
 
 [build-dependencies]
 build_helper = { path = "../build_helper" }
-gcc = "0.3.17"
+gcc = "0.3.27"
 
 [features]
 debug = []

src/liballoc_jemalloc/Cargo.toml

@@ -11,4 +11,4 @@ crate-type = ["dylib"]
 
 [build-dependencies]
 build_helper = { path = "../build_helper" }
-gcc = "0.3"
+gcc = "0.3.27"

src/libflate/Cargo.toml

@@ -17,4 +17,4 @@ rustc_bitflags = { path = "../librustc_bitflags" }
 
 [build-dependencies]
 build_helper = { path = "../build_helper" }
-gcc = "0.3"
+gcc = "0.3.27"

src/librustc_llvm/Cargo.toml

@@ -25,4 +25,4 @@ log = { path = "../liblog" }
 
 [build-dependencies]
 build_helper = { path = "../build_helper" }
-gcc = "0.3"
+gcc = "0.3.27"

src/librustdoc/Cargo.toml

@@ -22,7 +22,7 @@ rustc_unicode = { path = "../librustc_unicode" }
 
 [build-dependencies]
 build_helper = { path = "../build_helper" }
-gcc = "0.3"
+gcc = "0.3.27"
 
 [features]
 jemalloc = ["alloc_jemalloc"]