Respect preset CC/CXX values detecting cc/c++/gcc/g++ Tools.

As the user-preset values for CC/CXX should rule always, also respect them in
exists() and generate() methods of these Tools. As a result, the value for
CCVERSION/CXXVERSION does match the CC/CXX compiler used (issue#1723).

1 files changed, 4 insertions, 3 deletions

diff --git a/test/CC/CC.py b/test/CC/CC.py
index 73dc4e6..9500088 100644
--- a/test/CC/CC.py
+++ b/test/CC/CC.py
@@ -156,7 +156,8 @@ env.Program(target = 'test2', source = 'test2.C')
 test.write("wrapper.py",
 """import os
 import sys
-open('%s', 'wb').write("wrapper.py\\n")
+if '--version' not in sys.argv and '-dumpversion' not in sys.argv:
+    open('%s', 'wb').write("wrapper.py\\n")
 os.system(" ".join(sys.argv[1:]))
 """ % test.workpath('wrapper.out').replace('\\', '\\\\'))
 
@@ -197,13 +198,13 @@ main(int argc, char *argv[])
 
 test.run(arguments = 'foo' + _exe)
 
-test.fail_test(os.path.exists(test.workpath('wrapper.out')))
+test.must_not_exist(test.workpath('wrapper.out'))
 
 test.up_to_date(arguments = 'foo' + _exe)
 
 test.run(arguments = 'bar' + _exe)
 
-test.fail_test(test.read('wrapper.out') != "wrapper.py\n")
+test.must_match('wrapper.out', "wrapper.py\n")
 
 test.up_to_date(arguments = 'bar' + _exe)