fix openjpeg test so it can be cached, speeding up the test runner

tests/openjpeg/opj_config.h

@@ -0,0 +1,22 @@
+/* create config.h for CMake */
+#define PACKAGE_VERSION "1.4.0"
+#
+#define HAVE_INTTYPES_H 1
+#define HAVE_MEMORY_H 1
+#define HAVE_STDINT_H 1
+#define HAVE_STDLIB_H 1
+#define HAVE_STRINGS_H 1
+#define HAVE_STRING_H 1
+#define HAVE_SYS_STAT_H 1
+#define HAVE_SYS_TYPES_H 1
+#define HAVE_UNISTD_H 1
+#define HAVE_LIBPNG 1
+#define HAVE_PNG_H  1
+#define HAVE_LIBTIFF 1
+#define HAVE_TIFF_H 1
+#
+/* #undef HAVE_LIBLCMS1 */
+/* #undef HAVE_LIBLCMS2 */
+/* #undef HAVE_LCMS1_H */
+/* #undef HAVE_LCMS2_H */
+#

tests/runner.py

@@ -3806,6 +3806,8 @@ at function.:blag
         )
         open(filename, 'w').write(src)
 
+      shutil.copy(path_from_root('tests', 'openjpeg', 'opj_config.h'), self.get_dir())
+
       lib = self.get_library('openjpeg',
                              [os.path.join('bin', 'libopenjpeg.so.1.4.0.bc'),
                               os.path.sep.join('codec/CMakeFiles/j2k_to_image.dir/index.c.o'.split('/')),
@@ -3814,8 +3816,7 @@ at function.:blag
                               os.path.sep.join('codec/CMakeFiles/j2k_to_image.dir/__/common/getopt.c.o'.split('/'))],
                              configure=['cmake', '.'],
                              #configure_args=['--enable-tiff=no', '--enable-jp3d=no', '--enable-png=no'],
-                             make_args=[], # no -j 2, since parallel builds can fail
-                             cache=False) # We need opj_config.h and other generated files, so cannot cache just the .bc
+                             make_args=[]) # no -j 2, since parallel builds can fail
 
       # We use doubles in JS, so we get slightly different values than native code. So we
       # check our output by comparing the average pixel difference