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authorTom Lane <tgl@sss.pgh.pa.us>2010-03-01 18:07:59 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2010-03-01 18:07:59 +0000
commitd6a6f8c6be4b6d6a9e90e92d91a83225bfe8d29d (patch)
treee1730344410a4d0809c79540c9ada40829b1b0ff /contrib/xml2/xslt_proc.c
parent8373490607c437445163da8b7a44787f997ebf84 (diff)
downloadpostgresql-d6a6f8c6be4b6d6a9e90e92d91a83225bfe8d29d.tar.gz
postgresql-d6a6f8c6be4b6d6a9e90e92d91a83225bfe8d29d.zip
Fix contrib/xml2 so regression test still works when it's built without libxslt.
This involves modifying the module to have a stable ABI, that is, the xslt_process() function still exists even without libxslt. It throws a runtime error if called, but doesn't prevent executing the CREATE FUNCTION call. This is a good thing anyway to simplify cross-version upgrades.
Diffstat (limited to 'contrib/xml2/xslt_proc.c')
-rw-r--r--contrib/xml2/xslt_proc.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/contrib/xml2/xslt_proc.c b/contrib/xml2/xslt_proc.c
index 4265a561164..9b71766fceb 100644
--- a/contrib/xml2/xslt_proc.c
+++ b/contrib/xml2/xslt_proc.c
@@ -1,5 +1,5 @@
/*
- * $PostgreSQL: pgsql/contrib/xml2/xslt_proc.c,v 1.18 2010/03/01 05:16:35 tgl Exp $
+ * $PostgreSQL: pgsql/contrib/xml2/xslt_proc.c,v 1.19 2010/03/01 18:07:59 tgl Exp $
*
* XSLT processing functions (requiring libxslt)
*
@@ -13,6 +13,8 @@
#include "miscadmin.h"
#include "utils/builtins.h"
+#ifdef USE_LIBXSLT
+
/* libxml includes */
#include <libxml/xpath.h>
@@ -26,11 +28,15 @@
#include <libxslt/transform.h>
#include <libxslt/xsltutils.h>
+#endif /* USE_LIBXSLT */
+
/* externally accessible functions */
Datum xslt_process(PG_FUNCTION_ARGS);
+#ifdef USE_LIBXSLT
+
/* declarations to come from xpath.c */
extern void elog_error(const char *explain, bool force);
extern void pgxml_parser_init(void);
@@ -40,12 +46,16 @@ static void parse_params(const char **params, text *paramstr);
#define MAXPARAMS 20 /* must be even, see parse_params() */
+#endif /* USE_LIBXSLT */
+
PG_FUNCTION_INFO_V1(xslt_process);
Datum
xslt_process(PG_FUNCTION_ARGS)
{
+#ifdef USE_LIBXSLT
+
text *doct = PG_GETARG_TEXT_P(0);
text *ssheet = PG_GETARG_TEXT_P(1);
text *paramstr;
@@ -123,8 +133,18 @@ xslt_process(PG_FUNCTION_ARGS)
PG_RETURN_NULL();
PG_RETURN_TEXT_P(cstring_to_text_with_len((char *) resstr, reslen));
+
+#else /* !USE_LIBXSLT */
+
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("xslt_process() is not available without libxslt")));
+ PG_RETURN_NULL();
+
+#endif /* USE_LIBXSLT */
}
+#ifdef USE_LIBXSLT
static void
parse_params(const char **params, text *paramstr)
@@ -173,3 +193,5 @@ parse_params(const char **params, text *paramstr)
params[i] = NULL;
}
+
+#endif /* USE_LIBXSLT */