2017-04-20  Bruno Haible  <bruno@clisp.org>

        verify tests: Fix spurious failure with parallel make.
        * tests/test-verify.sh: Build test-verify-try.o, not test-verify.o.
        * tests/test-verify-try.c: New file.
        Reported by Adam James Stewart <ajstewart@anl.gov>.

diff --git a/gettext-tools/gnulib-tests/test-verify.sh b/gettext-tools/gnulib-tests/test-verify.sh
index 3e76761..1e75d55 100755
--- a/gettext-tools/gnulib-tests/test-verify.sh
+++ b/gettext-tools/gnulib-tests/test-verify.sh
@@ -7,8 +7,9 @@ unset MALLOC_PERTURB_
 
 # Rather than figure out how to invoke the compiler with the right
 # include path ourselves, we let make do it:
-(cd "$initial_cwd_" && rm -f test-verify.o \
-    && $MAKE test-verify.o >/dev/null 2>&1) \
+(cd "$initial_cwd_" \
+ && rm -f test-verify-try.o \
+ && $MAKE test-verify-try.o >/dev/null 2>&1) \
   || skip_ "cannot compile error-free"
 
 # Now, prove that we encounter all expected compilation failures:
@@ -16,8 +17,8 @@ unset MALLOC_PERTURB_
 : >err
 for i in 1 2 3 4 5; do
   (cd "$initial_cwd_"
-   rm -f test-verify.o
-   $MAKE CFLAGS=-DEXP_FAIL=$i test-verify.o) >>out 2>>err \
+   rm -f test-verify-try.o
+   $MAKE CFLAGS=-DEXP_FAIL=$i test-verify-try.o) >>out 2>>err \
   && { warn_ "compiler didn't detect verification failure $i"; fail=1; }
 done
 
diff --git a/gettext-tools/gnulib-tests/test-verify-try.c b/gettext-tools/gnulib-tests/test-verify-try.c
new file mode 100644
index 0000000..362fb01
--- /dev/null
+++ b/tests/test-verify-try.c
@@ -0,0 +1,21 @@
+/* Test the "verify" module.
+
+   Copyright (C) 2017 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* This is a separate source file, so that the execution of test-verify.sh
+   does not interfere with the building of the 'test-verify' program.  */
+
+#include "test-verify.c"