[svn-r17542] New test:

Add new tests (tcheck_version, testcheck_version.sh) to verify H5check_version()
does issue warnings and abort accordingly.

Tests:
H5committed tested plus jam serial tested.

7 files changed, 316 insertions, 12 deletions

diff --git a/MANIFEST b/MANIFEST
index a1cde7d..0ed6bd0 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -879,8 +879,10 @@
 ./test/tbad_msg_count.h5
 ./test/tbogus.h5
 ./test/tchecksum.c
+./test/tcheck_version.c
 ./test/tconfig.c
 ./test/tcoords.c
+./test/testcheck_version.sh.in
 ./test/testerror.sh.in
 ./test/testframe.c
 ./test/testhdf5.c
diff --git a/configure b/configure
index 5ea314b..9beeb55 100755
--- a/configure
+++ b/configure
@@ -28203,7 +28203,7 @@ if test -n "$TESTPARALLEL"; then
   fi
 fi
 
-ac_config_files="$ac_config_files src/libhdf5.settings Makefile src/Makefile test/Makefile test/testerror.sh test/testlibinfo.sh testpar/Makefile testpar/testph5.sh perform/Makefile tools/Makefile tools/h5dump/Makefile tools/h5dump/testh5dump.sh tools/h5dump/testh5dumpxml.sh tools/h5ls/testh5ls.sh tools/h5import/Makefile tools/h5diff/Makefile tools/h5jam/Makefile tools/h5jam/testh5jam.sh tools/h5repack/Makefile tools/h5repack/h5repack.sh tools/h5ls/Makefile tools/h5copy/Makefile tools/lib/Makefile tools/misc/Makefile tools/misc/h5cc tools/misc/testh5repart.sh tools/h5stat/testh5stat.sh tools/h5stat/Makefile examples/Makefile examples/testh5cc.sh c++/Makefile c++/src/Makefile c++/src/h5c++ c++/test/Makefile c++/examples/Makefile c++/examples/testh5c++.sh fortran/Makefile fortran/src/h5fc fortran/src/Makefile fortran/test/Makefile fortran/testpar/Makefile fortran/examples/Makefile fortran/examples/testh5fc.sh hl/Makefile hl/src/Makefile hl/test/Makefile hl/tools/Makefile hl/tools/gif2h5/Makefile hl/examples/Makefile hl/c++/Makefile hl/c++/src/Makefile hl/c++/test/Makefile hl/c++/examples/Makefile hl/fortran/Makefile hl/fortran/src/Makefile hl/fortran/test/Makefile hl/fortran/examples/Makefile"
+ac_config_files="$ac_config_files src/libhdf5.settings Makefile src/Makefile test/Makefile test/testcheck_version.sh test/testerror.sh test/testlibinfo.sh testpar/Makefile testpar/testph5.sh perform/Makefile tools/Makefile tools/h5dump/Makefile tools/h5dump/testh5dump.sh tools/h5dump/testh5dumpxml.sh tools/h5ls/testh5ls.sh tools/h5import/Makefile tools/h5diff/Makefile tools/h5jam/Makefile tools/h5jam/testh5jam.sh tools/h5repack/Makefile tools/h5repack/h5repack.sh tools/h5ls/Makefile tools/h5copy/Makefile tools/lib/Makefile tools/misc/Makefile tools/misc/h5cc tools/misc/testh5repart.sh tools/h5stat/testh5stat.sh tools/h5stat/Makefile examples/Makefile examples/testh5cc.sh c++/Makefile c++/src/Makefile c++/src/h5c++ c++/test/Makefile c++/examples/Makefile c++/examples/testh5c++.sh fortran/Makefile fortran/src/h5fc fortran/src/Makefile fortran/test/Makefile fortran/testpar/Makefile fortran/examples/Makefile fortran/examples/testh5fc.sh hl/Makefile hl/src/Makefile hl/test/Makefile hl/tools/Makefile hl/tools/gif2h5/Makefile hl/examples/Makefile hl/c++/Makefile hl/c++/src/Makefile hl/c++/test/Makefile hl/c++/examples/Makefile hl/fortran/Makefile hl/fortran/src/Makefile hl/fortran/test/Makefile hl/fortran/examples/Makefile"
 
 
 cat >confcache <<\_ACEOF
@@ -29413,6 +29413,7 @@ do
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
     "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
     "test/Makefile") CONFIG_FILES="$CONFIG_FILES test/Makefile" ;;
+    "test/testcheck_version.sh") CONFIG_FILES="$CONFIG_FILES test/testcheck_version.sh" ;;
     "test/testerror.sh") CONFIG_FILES="$CONFIG_FILES test/testerror.sh" ;;
     "test/testlibinfo.sh") CONFIG_FILES="$CONFIG_FILES test/testlibinfo.sh" ;;
     "testpar/Makefile") CONFIG_FILES="$CONFIG_FILES testpar/Makefile" ;;
diff --git a/configure.in b/configure.in
index b8d3e2a..febb212 100644
--- a/configure.in
+++ b/configure.in
@@ -3992,6 +3992,7 @@ AC_CONFIG_FILES([src/libhdf5.settings
                  Makefile
                  src/Makefile
                  test/Makefile
+                 test/testcheck_version.sh
                  test/testerror.sh
                  test/testlibinfo.sh
                  testpar/Makefile
diff --git a/test/Makefile.am b/test/Makefile.am
index fbd921a..7362872 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -24,7 +24,7 @@ include $(top_srcdir)/config/commence.am
 INCLUDES=-I$(top_srcdir)/src -I$(top_builddir)/src
 
 # Test script for error_test and err_compat
-TEST_SCRIPT = testerror.sh testlibinfo.sh
+TEST_SCRIPT = testerror.sh testlibinfo.sh testcheck_version.sh
 check_SCRIPTS = $(TEST_SCRIPT)
 SCRIPT_DEPEND = error_test$(EXEEXT) err_compat$(EXEEXT)
 
@@ -46,10 +46,11 @@ TEST_PROG=testhdf5 lheap ohdr stab gheap cache cache_api \
 
 # List programs to be built when testing here. error_test and err_compat are
 # built at the same time as the other tests, but executed by testerror.sh.
+# tcheck_version is used by testcheck_version.sh.
 # 'make check' doesn't run them directly, so they are not included in TEST_PROG.
 # Also build testmeta, which is used for timings test.  It builds quickly,
 # and this lets automake keep all its test programs in one place.
-check_PROGRAMS=$(TEST_PROG) error_test err_compat testmeta
+check_PROGRAMS=$(TEST_PROG) error_test err_compat tcheck_version testmeta
 
 
 # These programs generate test files for the tests.  They don't need to be
diff --git a/test/Makefile.in b/test/Makefile.in
index 5124ade..964c894 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -53,11 +53,11 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in \
-	$(srcdir)/testerror.sh.in $(srcdir)/testlibinfo.sh.in \
-	$(top_srcdir)/config/commence.am \
+	$(srcdir)/testcheck_version.sh.in $(srcdir)/testerror.sh.in \
+	$(srcdir)/testlibinfo.sh.in $(top_srcdir)/config/commence.am \
 	$(top_srcdir)/config/conclude.am COPYING
 check_PROGRAMS = $(am__EXEEXT_1) error_test$(EXEEXT) \
-	err_compat$(EXEEXT) testmeta$(EXEEXT)
+	err_compat$(EXEEXT) tcheck_version$(EXEEXT) testmeta$(EXEEXT)
 @BUILD_ALL_CONDITIONAL_TRUE@noinst_PROGRAMS = $(am__EXEEXT_2)
 TESTS = $(check_PROGRAMS) $(check_SCRIPTS)
 subdir = test
@@ -67,7 +67,7 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 mkinstalldirs = $(SHELL) $(top_srcdir)/bin/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/src/H5config.h
-CONFIG_CLEAN_FILES = testerror.sh testlibinfo.sh
+CONFIG_CLEAN_FILES = testcheck_version.sh testerror.sh testlibinfo.sh
 CONFIG_CLEAN_VPATH_FILES =
 LTLIBRARIES = $(noinst_LTLIBRARIES)
 libh5test_la_LIBADD =
@@ -314,6 +314,10 @@ stab_SOURCES = stab.c
 stab_OBJECTS = stab.$(OBJEXT)
 stab_LDADD = $(LDADD)
 stab_DEPENDENCIES = libh5test.la $(LIBHDF5)
+tcheck_version_SOURCES = tcheck_version.c
+tcheck_version_OBJECTS = tcheck_version.$(OBJEXT)
+tcheck_version_LDADD = $(LDADD)
+tcheck_version_DEPENDENCIES = libh5test.la $(LIBHDF5)
 am_testhdf5_OBJECTS = testhdf5.$(OBJEXT) tarray.$(OBJEXT) \
 	tattr.$(OBJEXT) tchecksum.$(OBJEXT) tconfig.$(OBJEXT) \
 	tfile.$(OBJEXT) tgenprop.$(OBJEXT) th5o.$(OBJEXT) \
@@ -367,8 +371,9 @@ SOURCES = $(libh5test_la_SOURCES) app_ref.c big.c bittests.c btree2.c \
 	gen_noencoder.c gen_nullspace.c gen_udlinks.c getname.c \
 	gheap.c hyperslab.c istore.c lheap.c links.c mf.c mount.c \
 	mtime.c ntypes.c objcopy.c ohdr.c pool.c reserved.c \
-	set_extent.c space_overflow.c stab.c $(testhdf5_SOURCES) \
-	testmeta.c $(ttsafe_SOURCES) unlink.c vfd.c
+	set_extent.c space_overflow.c stab.c tcheck_version.c \
+	$(testhdf5_SOURCES) testmeta.c $(ttsafe_SOURCES) unlink.c \
+	vfd.c
 DIST_SOURCES = $(libh5test_la_SOURCES) app_ref.c big.c bittests.c \
 	btree2.c cache.c cache_api.c cmpd_dset.c cross_read.c dangle.c \
 	dsets.c dt_arith.c dtransform.c dtypes.c earray.c enum.c \
@@ -379,8 +384,9 @@ DIST_SOURCES = $(libh5test_la_SOURCES) app_ref.c big.c bittests.c \
 	gen_new_super.c gen_noencoder.c gen_nullspace.c gen_udlinks.c \
 	getname.c gheap.c hyperslab.c istore.c lheap.c links.c mf.c \
 	mount.c mtime.c ntypes.c objcopy.c ohdr.c pool.c reserved.c \
-	set_extent.c space_overflow.c stab.c $(testhdf5_SOURCES) \
-	testmeta.c $(ttsafe_SOURCES) unlink.c vfd.c
+	set_extent.c space_overflow.c stab.c tcheck_version.c \
+	$(testhdf5_SOURCES) testmeta.c $(ttsafe_SOURCES) unlink.c \
+	vfd.c
 ETAGS = etags
 CTAGS = ctags
 am__tty_colors = \
@@ -666,7 +672,7 @@ CHECK_CLEANFILES = *.chkexe *.chklog *.clog cmpd_dset.h5 \
 INCLUDES = -I$(top_srcdir)/src -I$(top_builddir)/src
 
 # Test script for error_test and err_compat
-TEST_SCRIPT = testerror.sh testlibinfo.sh
+TEST_SCRIPT = testerror.sh testlibinfo.sh testcheck_version.sh
 check_SCRIPTS = $(TEST_SCRIPT)
 SCRIPT_DEPEND = error_test$(EXEEXT) err_compat$(EXEEXT)
 
@@ -771,6 +777,8 @@ $(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
 $(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 $(am__aclocal_m4_deps):
+testcheck_version.sh: $(top_builddir)/config.status $(srcdir)/testcheck_version.sh.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
 testerror.sh: $(top_builddir)/config.status $(srcdir)/testerror.sh.in
 	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
 testlibinfo.sh: $(top_builddir)/config.status $(srcdir)/testlibinfo.sh.in
@@ -969,6 +977,9 @@ space_overflow$(EXEEXT): $(space_overflow_OBJECTS) $(space_overflow_DEPENDENCIES
 stab$(EXEEXT): $(stab_OBJECTS) $(stab_DEPENDENCIES) 
 	@rm -f stab$(EXEEXT)
 	$(LINK) $(stab_OBJECTS) $(stab_LDADD) $(LIBS)
+tcheck_version$(EXEEXT): $(tcheck_version_OBJECTS) $(tcheck_version_DEPENDENCIES) 
+	@rm -f tcheck_version$(EXEEXT)
+	$(LINK) $(tcheck_version_OBJECTS) $(tcheck_version_LDADD) $(LIBS)
 testhdf5$(EXEEXT): $(testhdf5_OBJECTS) $(testhdf5_DEPENDENCIES) 
 	@rm -f testhdf5$(EXEEXT)
 	$(LINK) $(testhdf5_OBJECTS) $(testhdf5_LDADD) $(LIBS)
@@ -1050,6 +1061,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stab.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tarray.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tattr.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tcheck_version.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tchecksum.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tconfig.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tcoords.Po@am__quote@
diff --git a/test/tcheck_version.c b/test/tcheck_version.c
new file mode 100644
index 0000000..7a34b26
--- /dev/null
+++ b/test/tcheck_version.c
@@ -0,0 +1,99 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * This tests the h5check_version() function.
+ *
+ * The default is to call the h5check_version() with the version information
+ * in the header file and should incur no warnings or abort.
+ * Options provided to call it with incorrect versions to test
+ * if it will indeed issue the warning message and aborts.  With environment
+ * variable $HDF5_DISABLE_VERSION_CHECK sets to 1, it should issue warnings
+ * but no abort.  If it is 2, no warning or abort.
+ *
+ * Programmer: Albert Cheng
+ *             September 20, 2009
+ */
+
+
+#include <stdlib.h>
+#include "hdf5.h"
+
+#define	progname	"tcheck_version"
+
+/* global variables */
+unsigned	major = H5_VERS_MAJOR;
+unsigned	minor = H5_VERS_MINOR;
+unsigned	release = H5_VERS_RELEASE;
+
+void
+showhelp(void)
+{
+    printf("Usage: " progname " [-h] [-t<vers>]\n");
+    printf("\t-h\tShow this page and version information\n");
+    printf("\t-t<vers>: Test by changing (adding 1 to) the <vers> to trigger\n");
+    printf("\t\t  the warning. <vers> can be:\n");
+    printf("\t\t\tM for Major version number (%d)\n", H5_VERS_MAJOR);
+    printf("\t\t\tm for Minor version number (%d)\n", H5_VERS_MINOR);
+    printf("\t\t\tr for Release number (%d)\n", H5_VERS_RELEASE);
+}
+
+
+void
+parse(int ac, char **av)
+{
+    char *pt;
+
+    while (--ac > 0){
+	pt = *(++av);
+	if (*pt != '-') {
+	    fprintf(stderr, "Unknown option(%s). Aborted.\n", *av);
+	    exit(1);
+	}else{
+	    switch(*(++pt)) {
+		case 't': 	/* option -t */
+		    switch(*(++pt)) {
+			case 'M':
+			    major++;
+			    break;
+			case 'm':
+			    minor++;
+			    break;
+			case 'r':
+			    release++;
+			    break;
+			default:
+			    fprintf(stderr, "Unknown -v parameter (%s). Aborted.\n", *av);
+			    exit(1);
+		    }
+		    break;
+		case 'h':	/* help page */
+		    showhelp();
+		    exit(0);
+		default:
+		    fprintf(stderr, "Unknown option(%s). Aborted.\n", *av);
+		    exit(1);
+	    }
+	}
+    }
+}
+
+int
+main(int ac, char **av)
+{
+    parse(ac, av);
+    H5check_version(major, minor, release);
+    return 0;
+}
diff --git a/test/testcheck_version.sh.in b/test/testcheck_version.sh.in
new file mode 100644
index 0000000..15949e9
--- /dev/null
+++ b/test/testcheck_version.sh.in
@@ -0,0 +1,188 @@
+#! /bin/sh
+#
+# Copyright by The HDF Group.
+# Copyright by the Board of Trustees of the University of Illinois.
+# All rights reserved.
+#
+# This file is part of HDF5.  The full HDF5 copyright notice, including
+# terms governing use, modification, and redistribution, is contained in
+# the files COPYING and Copyright.html.  COPYING can be found at the root
+# of the source code distribution tree; Copyright.html can be found at the
+# root level of an installed copy of the electronic HDF5 document set and
+# is linked from the top-level documents page.  It can also be found at
+# http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have
+# access to either file, you may request a copy from help@hdfgroup.org.
+
+#
+# Tests for the H5check_version function.
+#
+# Programmer: Albert Cheng
+#	      Sep 28, 2009
+
+# Variables filled in by the configure process.
+# Determine the configure options of the hdf5 library and executables.
+Shared_Lib=@enable_shared@
+Static_Lib=@enable_static@
+Static_exec=@STATIC_EXEC@
+
+
+# Function definitions
+# Print a line-line message left justified in a field of 70 characters.
+#
+LINEMSG() {
+   SPACES="                                                               "
+   echo "$* $SPACES" | cut -c1-70 | tr -d '\012'
+}
+
+
+# Print a "SKIP" message
+SKIP() {
+    LINEMSG $*
+    echo  " -SKIP-"
+}
+  
+
+# Run a test and print PASS or *FAIL*.  If a test fails then increment
+# the `nerrors' global variable and (if $verbose is set) display the
+# difference between the actual output and the expected output. The
+# expected output generated according to the parameter values and compared
+# against actual output. 
+# The expected and actual output files are removed unless $HDF5_NOCLEANUP
+# has a non-zero value.
+# $1: the set value of $HDF5_DISABLE_VERSION_CHECK. (unset means not to set
+#     it at all.
+# $2: Change the version number(s) to cause a mismatch. (none means no
+#     mismatch).
+#
+# Expected results:
+# 		Value of $HDF5_DISABLE_VERSION_CHECK
+#		unset	""	-1	0	1	2	3
+# Matched	OK	OK	OK	OK	OK	OK	OK
+# Mismatched	W/A	W/A	W/A	W/A	W2/OK	OK	W2/OK
+# Result codes:
+# OK:    No warning, exit 0.
+# W/A:   Warning, abort and exit non-0.
+# W2/OK: Different Warning, exit 0.
+#
+# Implemented only exit code matching. Still need to match output.
+TESTING() {
+    DEBUGPRINT command is $0 $*
+    TEST_NAME=tcheck_version                  # The test name
+    TEST_BIN=`pwd`/$TEST_NAME # The path of the test binary
+
+    expect=expected_out
+    actual=actual_out
+    actual_err=actual_err_out
+    arguments=
+
+    h5DisableVersion="$1"
+    wrongversionnumbers="$2"
+
+    if [ "$h5DisableVersion" = unset ]; then
+	envcmd=""		# noop
+    else
+	envcmd="env HDF5_DISABLE_VERSION_CHECK=$h5DisableVersion"
+    fi
+
+    if [ "$wrongversionnumbers" = none ]; then
+	# OK: No warning, exit 0
+	cp /dev/null $expect
+	expected_code=0
+    else
+	arguments=-t"$wrongversionnumbers"
+	case "$h5DisableVersion" in
+	    2)	# OK: No warning, exit 0
+		cp /dev/null $expect
+		expected_code=0
+		;;
+	    [13-9]|[1-9][0-9]*)
+		# W2/OK: Different Warning, exit 0.
+		cp /dev/null $expect   #NEED FIX
+		expected_code=0
+		;;
+	    *)	# W/A:   Warning, abort and exit non-0.
+		cp /dev/null $expect    #NEED FIX
+		expected_code=1		# non-zero since abort exit code maybe
+		;;			# machine dependent.
+	esac
+    fi
+
+    # Run test.
+    LINEMSG $envcmd $TEST_NAME $arguments
+    (
+      echo "#############################"
+      echo "Expected output for $TEST_ERR" 
+      echo "#############################"
+      $envcmd $RUNSERIAL $TEST_BIN  $arguments
+    ) >$actual 2>$actual_err
+    ret_code=$?
+    
+    if [ \( $expected_code -eq 0 -a $expected_code -eq $ret_code \) -o \
+	   \( $expected_code -ne 0 -a $ret_code -ne 0 \) ]; then
+	echo " PASSED"
+    else
+	echo "*FAILED*"
+	echo "    Expected exit code ($expected_code) differs from actual code ($ret_code)"
+	nerrors="`expr $nerrors + 1`"
+    fi
+
+    # Clean up output file
+    if test -z "$HDF5_NOCLEANUP"; then
+	rm -f $expected_out $actual_out $actual_err
+    fi
+}
+
+
+# Echo parameters for debugging if verbose mode is on.
+DEBUGPRINT() {
+    if [ -n "$verbose" ]; then
+	echo $*
+    fi
+}
+
+
+# MAIN Body
+nerrors=0
+H5_HAVE_EMBEDDED_LIBINFO=`grep '#define H5_HAVE_EMBEDDED_LIBINFO ' ../src/H5pubconf.h`
+
+# The build (current) directory might be different than the source directory.
+if test -z "$srcdir"; then
+   srcdir=.
+fi
+
+# Skip the rest if embedded-libinfo is not enabled.
+if [ -z "$H5_HAVE_EMBEDDED_LIBINFO" ]; then
+    echo "embedded-libinfo is not enabled. Test skipped."
+    exit 0
+fi
+h5libsettings=../src/libhdf5.settings 
+
+# Figure out library version numbers from the header file.
+h5versmajor=`grep '#define H5_VERS_MAJOR' $srcdir/../src/H5public.h | cut -f2` 
+h5versminor=`grep '#define H5_VERS_MINOR' $srcdir/../src/H5public.h | cut -f2` 
+h5versrelease=`grep '#define H5_VERS_RELEASE' $srcdir/../src/H5public.h | cut -f2` 
+DEBUGPRINT $h5versmajor.$h5versminor.$h5versrelease
+
+
+# Three Categories of tests:
+# Normal: where the version numbers all matched (wrong_version == none).
+# Mismatched version numbers (could be Major or minor version
+#	or release numbers or a combination of all three.)
+# Test all the above with different values of the environment variable,
+# HDF5_DISABLE_VERSION_CHECK, as unset, "", -1, 0, 1, 2, 3
+
+for val_disable_version_check in unset "" -1 0 1 2 3; do
+    for wrong_version in none M m r Mm Mr mr; do
+	TESTING "$val_disable_version_check" "$wrong_version"
+    done
+done
+
+
+# Check and report results.
+if [ $nerrors -gt 0 ]; then
+    echo "***$nerrors errors encountered***"
+    exit 1
+else
+    echo "No error encountered"
+    exit 0
+fi