Merge #156: Pin version of build dependency cc to <1.0.42

845bff25da Bump version to 0.15.4 (Steven Roose)
07ef3a1f45 Pin version of build dependency cc to <1.0.42 (Steven Roose)

Pull request description:

  Version 1.0.42 broke compatibility with rustc 1.22.0.

ACKs for top commit:
  jonasnick:
    ACK 845bff25da

Tree-SHA512: 21161e6e85494d064b45b9800baa0355784e3b47772dff2716f049b1b15c047832ceb756b2031ef73374952c21aa04a8852a333eb3edbb73f5608c7ce8344c12

CHANGELOG.md

@@ -1,3 +1,11 @@
+
+# 0.15.4 - 2019-09-06
+
+- Add `rand-std` feature.
+- Pin the cc build-dep version to `< 1.0.42` to remain
+  compatible with rustc 1.22.0.
+- Changed all `as_*ptr()` to a new safer `CPtr` trait
+
 # 0.15.2 - 2019-08-08
 
 - Add feature `lowmemory` that reduces the EC mult window size to require

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "secp256k1"
-version = "0.15.3"
+version = "0.15.4"
 authors = [ "Dawid Ciężarkiewicz <dpc@ucore.info>",
             "Andrew Poelstra <apoelstra@wpsoftware.net>" ]
 license = "CC0-1.0"
@@ -19,7 +19,7 @@ links = "secp256k1"
 features = [ "rand", "serde", "recovery", "endomorphism" ]
 
 [build-dependencies]
-cc = ">= 1.0.28"
+cc = ">= 1.0.28, < 1.0.42"
 
 [lib]
 name = "secp256k1"