[PATCH 7 of 7] test-fuzz-targets: look for clang-6.0 binary as well

[Yuya Nishihara]

# HG changeset patch
# User Yuya Nishihara <yuya at tcha.org>
# Date 1528000858 -32400
#      Sun Jun 03 13:40:58 2018 +0900
# Node ID 487263b9525368d3ceb116ae0a86fcd8e1e3916c
# Parent  3e0005d37e872e95bfc2a9ae092c0db9d412315b
test-fuzz-targets: look for clang-6.0 binary as well

Debian sid is still shipped with clang 4.0 by default. This allows me to
run the test without replacing the system clang to clang-6.0.

diff --git a/tests/hghave.py b/tests/hghave.py
--- a/tests/hghave.py
+++ b/tests/hghave.py
@@ -709,6 +709,10 @@ def has_clang_libfuzzer():
         return int(mat.group(1)) > 5
     return False
 
+ at check("clang-6.0", "clang 6.0 with version suffix (libfuzzer included)")
+def has_clang60():
+    return matchoutput('clang-6.0 --version', b'clang version 6\.')
+
 @check("xdiff", "xdiff algorithm")
 def has_xdiff():
     try:
diff --git a/tests/test-fuzz-targets.t b/tests/test-fuzz-targets.t
--- a/tests/test-fuzz-targets.t
+++ b/tests/test-fuzz-targets.t
@@ -1,6 +1,17 @@
-#require clang-libfuzzer test-repo
+#require test-repo
+
   $ cd $TESTDIR/../contrib/fuzz
+
+#if clang-libfuzzer
   $ make -s clean all
+#endif
+#if no-clang-libfuzzer clang-6.0
+  $ make -s clean all CC=clang-6.0 CXX=clang++-6.0
+#endif
+#if no-clang-libfuzzer no-clang-6.0
+  $ exit 80
+#endif
+
 Just run the fuzzers for five seconds each to verify it works at all.
   $ ./bdiff -max_total_time 5
   $ ./xdiff -max_total_time 5