Fixed building for Solaris

`unix` actually supports Flock after golang/go#21410

Signed-off-by: Fedor Korotkov <[email protected]>

Author: fkorotkov

.ci/test-building-binaries-for-supported-os.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+set -e
+
+os_archs=(
+    darwin/amd64
+    freebsd/amd64
+    linux/amd64
+    solaris/amd64
+    windows/amd64
+)
+
+for os_arch in "${os_archs[@]}"
+do
+    goos=${os_arch%/*}
+    goarch=${os_arch#*/}
+    echo "Building $goos/$goarch..."
+    CGO_ENABLED=0 GOOS=${goos} GOARCH=${goarch} go build -o /dev/null ./...
+done
+
+echo "Succeeded building binaries for all supported OS/ARCH pairs!"

.travis.yml

@@ -11,6 +11,7 @@ install:
 
 script:
   - make test-coverage
+  - ./.ci/test-building-binaries-for-supported-os.sh
 
 after_success:
   - bash <(curl -s https://codecov.io/bash)

osfs/os_posix.go

@@ -1,4 +1,4 @@
-// +build !windows,!solaris
+// +build !windows
 
 package osfs