Add platform configuration for "Pythia".

Change-Id: I2727c0594b50e73e41d9ca59bbdb1978a9801cde
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/96967
Reviewed-by: David Benjamin <davidben@google.com>
Auto-Submit: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>

include/openssl/target.h

diff --git a/include/openssl/target.h b/include/openssl/target.h
index 2c03389..2372a05 100644
--- a/include/openssl/target.h
+++ b/include/openssl/target.h
@@ -105,6 +105,11 @@
 #define OPENSSL_FUCHSIA
 #endif
 
+// See go/boringssl-on-pythia.
+#if defined(__pythia__)
+#define OPENSSL_PYTHIA
+#endif
+
 // Trusty is Android's TEE target. See
 // https://source.android.com/docs/security/features/trusty
 //
@@ -165,6 +170,11 @@
 #define OPENSSL_NO_SOCK
 #endif
 
+#if defined(OPENSSL_PYTHIA)
+#define OPENSSL_NO_POSIX_IO
+#define OPENSSL_NO_SOCK
+#endif
+
 #if defined(__ANDROID_API__)
 #define OPENSSL_ANDROID
 #endif