SkPreConfig.h: Allow defined(__unix__) to imply SK_BUILD_FOR_UNIX
This is more general than checking for __linux, __FreeBSD__, etc. (In
principle we could remove some of the existing checks such as
__FreeBSD__, but I have not tried that so far.)
In particular, it allows Skia to build with the NaCl or PNaCl
toolchains, which is something we would like for Mojo.
BUG=https://github.com/domokit/mojo/issues/431
TEST=none
Review URL: https://codereview.chromium.org/1523733003
diff --git a/include/core/SkPreConfig.h b/include/core/SkPreConfig.h
index a1a3037..9371a26 100644
--- a/include/core/SkPreConfig.h
+++ b/include/core/SkPreConfig.h
@@ -30,7 +30,8 @@
#define SK_BUILD_FOR_ANDROID
#elif defined(linux) || defined(__linux) || defined(__FreeBSD__) || \
defined(__OpenBSD__) || defined(__sun) || defined(__NetBSD__) || \
- defined(__DragonFly__) || defined(__GLIBC__) || defined(__GNU__)
+ defined(__DragonFly__) || defined(__GLIBC__) || defined(__GNU__) || \
+ defined(__unix__)
#define SK_BUILD_FOR_UNIX
#elif TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
#define SK_BUILD_FOR_IOS
