Add building of Google Test libraries (#781978)

This closely follows the minimal-gtest-autotools template project.
    https://github.com/octol/minimal-gtest-autotools

Now 'make check' will additionally build the Google Test C++ test
framework libraries.

Bug 781978 - Add Google Test C++ test framework

.gitignore

@@ -5,6 +5,7 @@
 *~
 *.a
 *.gmo
+*.lo
 *.mo
 *.o
 *.omf
@@ -33,6 +34,7 @@ gnome-doc-utils.make
 help/*/gparted.xml
 install-sh
 intltool-*
+lib/gtest/lib
 libtool
 ltmain.sh
 m4/*.m4

Makefile.am

@@ -1,4 +1,4 @@
-SUBDIRS = compose data doc include po src
+SUBDIRS = compose data doc include lib po src
 # Only build GParted help documentation when enabled.  (Can be disabled
 # with './configure --disable-doc').
 if BUILD_HELP_DOC

configure.ac

@@ -285,6 +285,18 @@ fi
 
 
 
+dnl Definitions for building of and with gtest.  Gets flags for pthread via earlier
+dnl gthread package check.
+GTEST_CPPFLAGS="-DGTEST_HAS_PTHREAD=1"
+GTEST_CXXFLAGS="$GTHREAD_CFLAGS"
+GTEST_LDFLAGS=
+GTEST_LIBS="$GTHREAD_LIBS"
+AC_SUBST([GTEST_CPPFLAGS])
+AC_SUBST([GTEST_CXXFLAGS])
+AC_SUBST([GTEST_LDFLAGS])
+AC_SUBST([GTEST_LIBS])
+
+
 dnl======================
 dnl check whether to build documentation - gnome-doc-utils
 dnl======================
@@ -367,6 +379,8 @@ data/icons/Makefile
 doc/Makefile
 help/Makefile
 include/Makefile
+lib/Makefile
+lib/gtest/Makefile
 src/Makefile
 po/Makefile.in
 ])

lib/Makefile.am

@@ -0,0 +1 @@
+SUBDIRS = gtest

lib/gtest/Makefile.am

@@ -0,0 +1,61 @@
+# Nonstandard package files for distribution
+EXTRA_DIST = \
+  LICENSE \
+  README.md \
+  include/gtest/gtest-param-test.h.pump \
+  include/gtest/internal/gtest-param-util-generated.h.pump \
+  include/gtest/internal/gtest-tuple.h.pump \
+  include/gtest/internal/gtest-type-util.h.pump
+
+# gtest source files that we don't compile directly.  They are
+# #included by gtest-all.cc.
+GTEST_SRC = \
+  src/gtest-death-test.cc \
+  src/gtest-filepath.cc \
+  src/gtest-internal-inl.h \
+  src/gtest-port.cc \
+  src/gtest-printers.cc \
+  src/gtest-test-part.cc \
+  src/gtest-typed-test.cc \
+  src/gtest.cc \
+  include/gtest/gtest-death-test.h \
+  include/gtest/gtest-message.h \
+  include/gtest/gtest-param-test.h \
+  include/gtest/gtest-printers.h \
+  include/gtest/gtest-spi.h \
+  include/gtest/gtest-test-part.h \
+  include/gtest/gtest-typed-test.h \
+  include/gtest/gtest.h \
+  include/gtest/gtest_pred_impl.h \
+  include/gtest/gtest_prod.h \
+  include/gtest/internal/gtest-death-test-internal.h \
+  include/gtest/internal/gtest-filepath.h \
+  include/gtest/internal/gtest-internal.h \
+  include/gtest/internal/gtest-linked_ptr.h \
+  include/gtest/internal/gtest-param-util-generated.h \
+  include/gtest/internal/gtest-param-util.h \
+  include/gtest/internal/gtest-port.h \
+  include/gtest/internal/gtest-port-arch.h \
+  include/gtest/internal/gtest-string.h \
+  include/gtest/internal/gtest-tuple.h \
+  include/gtest/internal/gtest-type-util.h \
+  include/gtest/internal/custom/gtest.h \
+  include/gtest/internal/custom/gtest-port.h \
+  include/gtest/internal/custom/gtest-printers.h
+
+EXTRA_DIST += $(GTEST_SRC)
+
+# We define the global AM_CPPFLAGS as everything we compile includes from these
+# directories.
+AM_CPPFLAGS = -I$(srcdir) -I$(srcdir)/include $(GTEST_CPPFLAGS)
+AM_CXXFLAGS = $(GTEST_CXXFLAGS)
+AM_LDFLAGS = $(GTEST_LDFLAGS)
+LDADD = $(GTEST_LIBS)
+
+# Build rules for libraries.
+check_LTLIBRARIES = lib/libgtest.la lib/libgtest_main.la
+
+lib_libgtest_la_SOURCES = src/gtest-all.cc
+
+lib_libgtest_main_la_SOURCES = src/gtest_main.cc
+lib_libgtest_main_la_LIBADD = lib/libgtest.la