--- a/postgis/liblwgeom/liblwgeom.h.in
+++ b/postgis/liblwgeom/liblwgeom.h.in
@@ -34,7 +34,7 @@
 #include <stdio.h>
 #include <stdbool.h>
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 #include "proj.h"
 
--- a/postgis/liblwgeom/liblwgeom_internal.h
+++ b/postgis/liblwgeom/liblwgeom_internal.h
@@ -29,7 +29,7 @@
 #ifndef _LIBLWGEOM_INTERNAL_H
 #define _LIBLWGEOM_INTERNAL_H 1
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 #include "lwgeom_log.h"
 
--- a/postgis/liblwgeom/lwgeom_geos_clean.c
+++ b/postgis/liblwgeom/lwgeom_geos_clean.c
@@ -22,7 +22,7 @@
  *
  **********************************************************************/
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 #include "liblwgeom.h"
 #include "lwgeom_geos.h"
--- a/postgis/liblwgeom/lwgeom_geos_split.c
+++ b/postgis/liblwgeom/lwgeom_geos_split.c
@@ -22,7 +22,7 @@
  *
  **********************************************************************/
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 /*#define POSTGIS_DEBUG_LEVEL 4*/
 #include "lwgeom_geos.h"
 #include "liblwgeom_internal.h"
--- a/postgis/liblwgeom/lwgeom_transform.c
+++ b/postgis/liblwgeom/lwgeom_transform.c
@@ -23,7 +23,7 @@
  **********************************************************************/
 
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 #include "liblwgeom_internal.h"
 #include "lwgeom_log.h"
 #include <string.h>
--- a/postgis/liblwgeom/lwgeom_wrapx.c
+++ b/postgis/liblwgeom/lwgeom_wrapx.c
@@ -22,7 +22,7 @@
  *
  **********************************************************************/
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 /*#define POSTGIS_DEBUG_LEVEL 4*/
 #include "lwgeom_geos.h"
 #include "liblwgeom_internal.h"
--- a/postgis/liblwgeom/lwin_encoded_polyline.c
+++ b/postgis/liblwgeom/lwin_encoded_polyline.c
@@ -28,7 +28,7 @@
 #include <math.h>
 
 #include "liblwgeom.h"
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 LWGEOM*
 lwgeom_from_encoded_polyline(const char *encodedpolyline, int precision)
--- a/postgis/liblwgeom/lwin_geojson.c
+++ b/postgis/liblwgeom/lwin_geojson.c
@@ -26,7 +26,7 @@
 
 #include "liblwgeom.h"
 #include "lwgeom_log.h"
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 #if defined(HAVE_LIBJSON)
 
--- a/postgis/liblwgeom/lwin_wkb.c
+++ b/postgis/liblwgeom/lwin_wkb.c
@@ -23,7 +23,7 @@
  **********************************************************************/
 
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 /*#define POSTGIS_DEBUG_LEVEL 4*/
 #include "liblwgeom_internal.h" /* NOTE: includes lwgeom_log.h */
 #include "lwgeom_log.h"
--- a/postgis/liblwgeom/lwpoint.c
+++ b/postgis/liblwgeom/lwpoint.c
@@ -26,7 +26,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "../postgis_config.h"
+#include "postgis_config.h"
 /*#define POSTGIS_DEBUG_LEVEL 4*/
 #include "liblwgeom_internal.h"
 #include "lwgeom_log.h"
--- a/postgis/liblwgeom/lwstroke.c
+++ b/postgis/liblwgeom/lwstroke.c
@@ -30,7 +30,7 @@
 #include <stdarg.h>
 #include <string.h>
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 /*#define POSTGIS_DEBUG_LEVEL 3*/
 
--- a/postgis/liblwgeom/lwutil.c
+++ b/postgis/liblwgeom/lwutil.c
@@ -33,7 +33,7 @@
 #include <ctype.h> /* for tolower */
 
 /* Global variables */
-#include "../postgis_config.h"
+#include "postgis_config.h"
 #include "liblwgeom_internal.h"
 #include "lwgeom_log.h"
 
--- a/postgis/liblwgeom/ptarray.c
+++ b/postgis/liblwgeom/ptarray.c
@@ -28,7 +28,7 @@
 #include <string.h>
 #include <stdlib.h>
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 /*#define POSTGIS_DEBUG_LEVEL 4*/
 #include "liblwgeom_internal.h"
 #include "lwgeom_log.h"
--- a/postgis/libpgcommon/gserialized_gist.c
+++ b/postgis/libpgcommon/gserialized_gist.c
@@ -14,7 +14,7 @@
 #include "access/itup.h"
 #include "access/skey.h"
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 /*#define POSTGIS_DEBUG_LEVEL 4*/
 
--- a/postgis/libpgcommon/lwgeom_cache.c
+++ b/postgis/libpgcommon/lwgeom_cache.c
@@ -17,7 +17,7 @@
 #include "fmgr.h"
 #include "utils/memutils.h"
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 /* Include for VARATT_EXTERNAL_GET_POINTER */
 #if POSTGIS_PGSQL_VERSION < 130
--- a/postgis/libpgcommon/lwgeom_pg.c
+++ b/postgis/libpgcommon/lwgeom_pg.c
@@ -33,7 +33,7 @@
 #include <catalog/pg_extension.h>
 #include <commands/extension.h>
 
-#include "../postgis_config.h"
+#include "postgis_config.h"
 
 #include <utils/regproc.h>
 
--- a/postgis/libpgcommon/lwgeom_transform.c
+++ b/postgis/libpgcommon/lwgeom_transform.c
@@ -21,7 +21,7 @@
 #include "utils/hsearch.h"
 
 /* PostGIS headers */
-#include "../postgis_config.h"
+#include "postgis_config.h"
 #include "liblwgeom.h"
 #include "lwgeom_pg.h"
 #include "lwgeom_cache.h"
