Use correct PATH separator for Cygwin in pg_regress.c.

This has been broken for years, and I'm not sure why it has not been
noticed before, but now a very modern Cygwin breaks on it, and the fix
is clearly correct. Backpatching to all live branches.

diff --git a/src/test/regress/pg_regress.c b/src/test/regress/pg_regress.c
index 477732eee74f5e1cbd65a393615ec3363234e522..977a8c7cb7b9145a7d3e89c673fc6d8a5c9d27aa 100644 (file)
--- a/src/test/regress/pg_regress.c
+++ b/src/test/regress/pg_regress.c
@@ -815,8 +815,10 @@ initialize_environment(void)
                add_to_path("LD_LIBRARY_PATH", ':', libdir);
                add_to_path("DYLD_LIBRARY_PATH", ':', libdir);
                add_to_path("LIBPATH", ':', libdir);
-#if defined(WIN32) || defined(__CYGWIN__)
+#if defined(WIN32)
                add_to_path("PATH", ';', libdir);
+#elif defined(__CYGWIN__)
+               add_to_path("PATH", ':', libdir);
 #endif
        }
        else