Squashed 'third_party/googletest/' content from commit f570b27
Change-Id: I80d9a022f8a149322a5c8d60dddc70ae74c22ce2
git-subtree-dir: third_party/googletest
git-subtree-split: f570b27e15a4e921d59495622a82277a3e1e8f87
diff --git a/googletest/m4/gtest.m4 b/googletest/m4/gtest.m4
new file mode 100644
index 0000000..6598ba7
--- /dev/null
+++ b/googletest/m4/gtest.m4
@@ -0,0 +1,74 @@
+dnl GTEST_LIB_CHECK([minimum version [,
+dnl action if found [,action if not found]]])
+dnl
+dnl Check for the presence of the Google Test library, optionally at a minimum
+dnl version, and indicate a viable version with the HAVE_GTEST flag. It defines
+dnl standard variables for substitution including GTEST_CPPFLAGS,
+dnl GTEST_CXXFLAGS, GTEST_LDFLAGS, and GTEST_LIBS. It also defines
+dnl GTEST_VERSION as the version of Google Test found. Finally, it provides
+dnl optional custom action slots in the event GTEST is found or not.
+AC_DEFUN([GTEST_LIB_CHECK],
+[
+dnl Provide a flag to enable or disable Google Test usage.
+AC_ARG_ENABLE([gtest],
+ [AS_HELP_STRING([--enable-gtest],
+ [Enable tests using the Google C++ Testing Framework.
+ (Default is enabled.)])],
+ [],
+ [enable_gtest=])
+AC_ARG_VAR([GTEST_CONFIG],
+ [The exact path of Google Test's 'gtest-config' script.])
+AC_ARG_VAR([GTEST_CPPFLAGS],
+ [C-like preprocessor flags for Google Test.])
+AC_ARG_VAR([GTEST_CXXFLAGS],
+ [C++ compile flags for Google Test.])
+AC_ARG_VAR([GTEST_LDFLAGS],
+ [Linker path and option flags for Google Test.])
+AC_ARG_VAR([GTEST_LIBS],
+ [Library linking flags for Google Test.])
+AC_ARG_VAR([GTEST_VERSION],
+ [The version of Google Test available.])
+HAVE_GTEST="no"
+AS_IF([test "x${enable_gtest}" != "xno"],
+ [AC_MSG_CHECKING([for 'gtest-config'])
+ AS_IF([test "x${enable_gtest}" != "xyes"],
+ [AS_IF([test -x "${enable_gtest}/scripts/gtest-config"],
+ [GTEST_CONFIG="${enable_gtest}/scripts/gtest-config"],
+ [GTEST_CONFIG="${enable_gtest}/bin/gtest-config"])
+ AS_IF([test -x "${GTEST_CONFIG}"], [],
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([dnl
+Unable to locate either a built or installed Google Test.
+The specific location '${enable_gtest}' was provided for a built or installed
+Google Test, but no 'gtest-config' script could be found at this location.])
+ ])],
+ [AC_PATH_PROG([GTEST_CONFIG], [gtest-config])])
+ AS_IF([test -x "${GTEST_CONFIG}"],
+ [AC_MSG_RESULT([${GTEST_CONFIG}])
+ m4_ifval([$1],
+ [_gtest_min_version="--min-version=$1"
+ AC_MSG_CHECKING([for Google Test at least version >= $1])],
+ [_gtest_min_version="--min-version=0"
+ AC_MSG_CHECKING([for Google Test])])
+ AS_IF([${GTEST_CONFIG} ${_gtest_min_version}],
+ [AC_MSG_RESULT([yes])
+ HAVE_GTEST='yes'],
+ [AC_MSG_RESULT([no])])],
+ [AC_MSG_RESULT([no])])
+ AS_IF([test "x${HAVE_GTEST}" = "xyes"],
+ [GTEST_CPPFLAGS=`${GTEST_CONFIG} --cppflags`
+ GTEST_CXXFLAGS=`${GTEST_CONFIG} --cxxflags`
+ GTEST_LDFLAGS=`${GTEST_CONFIG} --ldflags`
+ GTEST_LIBS=`${GTEST_CONFIG} --libs`
+ GTEST_VERSION=`${GTEST_CONFIG} --version`
+ AC_DEFINE([HAVE_GTEST],[1],[Defined when Google Test is available.])],
+ [AS_IF([test "x${enable_gtest}" = "xyes"],
+ [AC_MSG_ERROR([dnl
+Google Test was enabled, but no viable version could be found.])
+ ])])])
+AC_SUBST([HAVE_GTEST])
+AM_CONDITIONAL([HAVE_GTEST],[test "x$HAVE_GTEST" = "xyes"])
+AS_IF([test "x$HAVE_GTEST" = "xyes"],
+ [m4_ifval([$2], [$2])],
+ [m4_ifval([$3], [$3])])
+])