Prevent running check tests on host if cross compiling

This patch enables running the 'make check' tests on the target
in a cross-compiled environment. If not cross-compiling, then 'make
 check' builds and executes the tests; no change from this patch.
In a cross-compiling environment, the make variable CROSS_COMPILE is
set which bypasses assiging tests to the makekfile variable TESTS.
Since TESTS is empty, the 'make check' process never tries to run the
tests on the hosts.  On the target, the tests must be run manually.

Also, in the libutil++ tests, a makefile variable SRCDIR is passed into
the compilation phase, pointing to the runtime location of the test
'file-manip-tests'.  The mechanism used for a host test, based on
'topdir' doesn't work.  Instead, if CROSS_COMPILE is set, the
makefile takes the path of SRCDIR from the build environment and not
from an expression based on the host path 'topdir'.

Upstream-Status: Pending

Signed-off-by: Dave Lerner <dave.lerner@windriver.com>

diff --git a/configure.ac b/configure.ac
index 41ece64..ce5a16f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -392,6 +392,7 @@ AC_ARG_ENABLE(account-check,
 	enable_account_check=$enableval, enable_account_check=yes)
 
 AM_CONDITIONAL(CHECK_ACCOUNT, test "x$enable_account_check" = "xyes")
+AM_CONDITIONAL(CROSS_COMPILE, test "x$cross_compiling" = "xyes")
 
 AC_SUBST(OP_CFLAGS)
 AC_SUBST(OP_CXXFLAGS)
diff --git a/libdb/tests/Makefile.am b/libdb/tests/Makefile.am
index 8a69003..d820090 100644
--- a/libdb/tests/Makefile.am
+++ b/libdb/tests/Makefile.am
@@ -13,4 +13,6 @@ check_PROGRAMS = db_test
 db_test_SOURCES = db_test.c
 db_test_LDADD = ../libodb.a ../../libutil/libutil.a
 
+if ! CROSS_COMPILE
 TESTS = ${check_PROGRAMS}
+endif
diff --git a/libop/tests/Makefile.am b/libop/tests/Makefile.am
index 8a79eb5..6d417c4 100644
--- a/libop/tests/Makefile.am
+++ b/libop/tests/Makefile.am
@@ -33,4 +33,6 @@ load_events_files_tests_LDADD = ${COMMON_LIBS}
 mangle_tests_SOURCES = mangle_tests.c
 mangle_tests_LDADD = ${COMMON_LIBS}
 
+if ! CROSS_COMPILE
 TESTS = ${check_PROGRAMS} utf8_checker.sh
+endif
diff --git a/libregex/tests/Makefile.am b/libregex/tests/Makefile.am
index 6f19838..1d176f9 100644
--- a/libregex/tests/Makefile.am
+++ b/libregex/tests/Makefile.am
@@ -18,4 +18,6 @@ java_test_LDADD = \
 
 EXTRA_DIST = mangled-name.in
 
+if ! CROSS_COMPILE
 TESTS = ${check_PROGRAMS}
+endif
diff --git a/libutil++/tests/Makefile.am b/libutil++/tests/Makefile.am
index 51af031..a01ea2d 100644
--- a/libutil++/tests/Makefile.am
+++ b/libutil++/tests/Makefile.am
@@ -1,7 +1,9 @@
 
 REALPATH= readlink -f
 
+if ! CROSS_COMPILE
 SRCDIR := $(shell $(REALPATH) $(topdir)/libutil++/tests/ )
+endif
 
 AM_CPPFLAGS = \
 	-I ${top_srcdir}/libutil++ -D SRCDIR="\"$(SRCDIR)/\"" @OP_CPPFLAGS@
@@ -46,4 +48,6 @@ cached_value_tests_LDADD = ${COMMON_LIBS}
 utility_tests_SOURCES = utility_tests.cpp
 utility_tests_LDADD = ${COMMON_LIBS}
 
+if ! CROSS_COMPILE
 TESTS = ${check_PROGRAMS}
+endif
diff --git a/libutil/tests/Makefile.am b/libutil/tests/Makefile.am
index dfcd6ec..e8831b5 100644
--- a/libutil/tests/Makefile.am
+++ b/libutil/tests/Makefile.am
@@ -12,4 +12,6 @@ file_tests_LDADD = ../libutil.a
 string_tests_SOURCES = string_tests.c
 string_tests_LDADD = ../libutil.a
 
+if ! CROSS_COMPILE
 TESTS = ${check_PROGRAMS}
+endif