Port Minijail unit tests to Google Test.
Remove the duplicate unit test files.
Google Test is designed to be included directly with the project using
it, so add a simple shell script to get the sources.
Bug: 34520446
Test: Builds on Android, desktop Linux.
Change-Id: Iabc63fa1cb847b668645dbf5468454f025c93721
diff --git a/common.mk b/common.mk
index 4e47f2a..58252f9 100644
--- a/common.mk
+++ b/common.mk
@@ -319,8 +319,8 @@
COMMON_CFLAGS-gcc := -fvisibility=internal -ggdb3 -Wa,--noexecstack
COMMON_CFLAGS-clang := -fvisibility=hidden -ggdb
COMMON_CFLAGS := -Wall -Werror -fno-strict-aliasing $(SSP_CFLAGS) -O1 -Wformat=2
-CXXFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CXXDRIVER))
-CFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CDRIVER))
+CXXFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CXXDRIVER)) -std=gnu++11
+CFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CDRIVER)) -std=gnu11
CPPFLAGS += -D_FORTIFY_SOURCE=2
# Enable large file support.