diff --git a/.gitignore b/.gitignore
index 77189e32ca8..13d0a26b704 100644
--- a/.gitignore
+++ b/.gitignore
@@ -229,3 +229,8 @@ win32/wsyslog.h
 **/tests/**/*.db
 **/tests/**/*.txt
 **/tests/**/*.tmp
+
+# special cases to invert previous ignore rules
+!ext/fileinfo/libmagic.patch
+!ext/mbstring/oniguruma.patch
+
diff --git a/NEWS b/NEWS
index ea7e10bbb9a..598edb21f66 100644
--- a/NEWS
+++ b/NEWS
@@ -11,6 +11,8 @@ PHP                                                                        NEWS
     php_parse_date()). (Derick)
   . Fixed bug #49649 (unserialize() doesn't handle changes in property 
     visibility). (pmmaga)
+  . Fixed #74866 (extension_dir = "./ext" now use current directory for base).
+    (Francois Laupretre)
 
 - Date:
   . Fixed bug #74852 (property_exists returns true on unknown DateInterval 
diff --git a/ext/exif/exif.c b/ext/exif/exif.c
index 17c524f3314..adfb539b372 100644
--- a/ext/exif/exif.c
+++ b/ext/exif/exif.c
@@ -1552,7 +1552,7 @@ char * exif_dump_data(int *dump_free, int format, int components, int length, in
 		return value_ptr ? value_ptr : "<no data>";
 	}
 	if (format == TAG_FMT_UNDEFINED) {
-		return "<undefined>\n";
+		return "<undefined>";
 	}
 	if (format == TAG_FMT_IFD) {
 		return "";
@@ -3723,7 +3723,7 @@ static int exif_scan_JPEG_header(image_info_type *ImageInfo)
 	unsigned int ll, lh;
 	uchar *Data;
 	size_t fpos, size, got, itemlen;
-	jpeg_sof_info  sof_info;
+	jpeg_sof_info sof_info;
 
 	for(section=0;;section++) {
 #ifdef EXIF_DEBUG
@@ -4305,9 +4305,9 @@ static int exif_discard_imageinfo(image_info_type *ImageInfo)
 }
 /* }}} */
 
-/* {{{ exif_read_from_stream
+/* {{{ exif_read_from_impl
  */
-static int exif_read_from_stream(image_info_type *ImageInfo, php_stream *stream, int read_thumbnail, int read_all)
+static int exif_read_from_impl(image_info_type *ImageInfo, php_stream *stream, int read_thumbnail, int read_all)
 {
 	int ret;
 	zend_stat_t st;
@@ -4368,6 +4368,27 @@ static int exif_read_from_stream(image_info_type *ImageInfo, php_stream *stream,
 }
 /* }}} */
 
+/* {{{ exif_read_from_stream
+ */
+static int exif_read_from_stream(image_info_type *ImageInfo, php_stream *stream, int read_thumbnail, int read_all)
+{
+	int ret;
+	off_t old_pos = php_stream_tell(stream);
+
+	if (old_pos) {
+		php_stream_seek(stream, 0, SEEK_SET);
+	}
+
+	ret = exif_read_from_impl(ImageInfo, stream, read_thumbnail, read_all);
+
+	if (old_pos) {
+		php_stream_seek(stream, old_pos, SEEK_SET);
+	}
+
+	return ret;
+}
+/* }}} */
+
 /* {{{ exif_read_from_file
  */
 static int exif_read_from_file(image_info_type *ImageInfo, char *FileName, int read_thumbnail, int read_all)
@@ -4590,7 +4611,7 @@ PHP_FUNCTION(exif_read_data)
 	exif_discard_imageinfo(&ImageInfo);
 
 #ifdef EXIF_DEBUG
-	php_error_docref1(NULL, p_name, E_NOTICE, "done");
+	php_error_docref1(NULL, (Z_TYPE_P(stream) == IS_RESOURCE ? "<stream>" : Z_STRVAL_P(stream)), E_NOTICE, "Done");
 #endif
 }
 /* }}} */
@@ -4672,7 +4693,7 @@ PHP_FUNCTION(exif_thumbnail)
 	exif_discard_imageinfo(&ImageInfo);
 
 #ifdef EXIF_DEBUG
-	php_error_docref1(NULL, p_name, E_NOTICE, "Done");
+	php_error_docref1(NULL, (Z_TYPE_P(stream) == IS_RESOURCE ? "<stream>" : Z_STRVAL_P(stream)), E_NOTICE, "Done");
 #endif
 }
 /* }}} */
diff --git a/ext/exif/tests/exif_read_data_streams_seek.phpt b/ext/exif/tests/exif_read_data_streams_seek.phpt
new file mode 100644
index 00000000000..a9476b43533
--- /dev/null
+++ b/ext/exif/tests/exif_read_data_streams_seek.phpt
@@ -0,0 +1,21 @@
+--TEST--
+exif_read_data() with streams seeking test
+--SKIPIF--
+<?php if (!extension_loaded('exif')) print 'skip exif extension not available';?>
+--INI--
+output_handler=
+zlib.output_compression=0
+--FILE--
+<?php
+$fp = fopen(__DIR__ . '/image027.tiff', 'rb');
+
+fseek($fp, 100, SEEK_SET);
+
+exif_read_data($fp);
+
+var_dump(ftell($fp) === 100);
+
+fclose($fp);
+?>
+--EXPECT--
+bool(true)
diff --git a/ext/mbstring/oniguruma.patch b/ext/mbstring/oniguruma.patch
new file mode 100644
index 00000000000..7c21f622fbf
--- /dev/null
+++ b/ext/mbstring/oniguruma.patch
@@ -0,0 +1,61 @@
+diff -wur oniguruma.orig/src/config.h.win32 oniguruma/src/config.h.win32
+--- oniguruma.orig/src/config.h.win32	2017-07-13 17:12:45.228068900 +0200
++++ oniguruma/src/config.h.win32	2017-07-13 16:11:19.955226200 +0200
+@@ -15,6 +15,7 @@
+ #define SIZEOF_VOIDP 4
+ #define SIZEOF_FLOAT 4
+ #define SIZEOF_DOUBLE 8
++#define SIZEOF_SIZE_T 4
+ #define HAVE_PROTOTYPES 1
+ #define TOKEN_PASTE(x,y) x##y
+ #define HAVE_STDARG_PROTOTYPES 1
+diff -wur oniguruma.orig/src/config.h.win64 oniguruma/src/config.h.win64
+--- oniguruma.orig/src/config.h.win64	2017-07-13 17:12:45.273605000 +0200
++++ oniguruma/src/config.h.win64	2017-07-13 16:11:19.957231300 +0200
+@@ -15,6 +15,7 @@
+ #define SIZEOF_VOIDP 8
+ #define SIZEOF_FLOAT 4
+ #define SIZEOF_DOUBLE 8
++#define SIZEOF_SIZE_T 8
+ #define HAVE_PROTOTYPES 1
+ #define TOKEN_PASTE(x,y) x##y
+ #define HAVE_STDARG_PROTOTYPES 1
+diff -wur oniguruma.orig/src/regint.h oniguruma/src/regint.h
+--- oniguruma.orig/src/regint.h	2017-07-13 17:12:48.686073300 +0200
++++ oniguruma/src/regint.h	2017-07-13 17:13:28.032286100 +0200
+@@ -201,17 +201,21 @@
+ } while(0)
+ 
+ /* sizeof(OnigCodePoint) */
++#ifdef SIZEOF_SIZE_T
++# define WORD_ALIGNMENT_SIZE     SIZEOF_SIZE_T
++#else
+ #define WORD_ALIGNMENT_SIZE     SIZEOF_LONG
++#endif
+ 
+ #define GET_ALIGNMENT_PAD_SIZE(addr,pad_size) do {\
+   (pad_size) = WORD_ALIGNMENT_SIZE \
+-               - ((unsigned int )(addr) % WORD_ALIGNMENT_SIZE);\
++               - ((size_t)(addr) % WORD_ALIGNMENT_SIZE);\
+   if ((pad_size) == WORD_ALIGNMENT_SIZE) (pad_size) = 0;\
+ } while (0)
+ 
+ #define ALIGNMENT_RIGHT(addr) do {\
+   (addr) += (WORD_ALIGNMENT_SIZE - 1);\
+-  (addr) -= ((unsigned int )(addr) % WORD_ALIGNMENT_SIZE);\
++  (addr) -= ((size_t)(addr) % WORD_ALIGNMENT_SIZE);\
+ } while (0)
+ 
+ #endif /* PLATFORM_UNALIGNED_WORD_ACCESS */
+@@ -662,7 +666,11 @@
+   BBuf*  mbuf;   /* multi-byte info or NULL */
+ } CClassNode;
+ 
++#ifdef _WIN64
++typedef __int64 OnigStackIndex;
++#else
+ typedef long OnigStackIndex;
++#endif
+ 
+ typedef struct _OnigStackType {
+   unsigned int type;
diff --git a/ext/mbstring/oniguruma/src/regint.h b/ext/mbstring/oniguruma/src/regint.h
index c33bc4e261d..4c9853b39dc 100644
--- a/ext/mbstring/oniguruma/src/regint.h
+++ b/ext/mbstring/oniguruma/src/regint.h
@@ -201,7 +201,11 @@
 } while(0)
 
 /* sizeof(OnigCodePoint) */
-#define WORD_ALIGNMENT_SIZE     SIZEOF_SIZE_T
+#ifdef SIZEOF_SIZE_T
+# define WORD_ALIGNMENT_SIZE     SIZEOF_SIZE_T
+#else
+# define WORD_ALIGNMENT_SIZE     SIZEOF_LONG
+#endif
 
 #define GET_ALIGNMENT_PAD_SIZE(addr,pad_size) do {\
   (pad_size) = WORD_ALIGNMENT_SIZE \
diff --git a/ext/oci8/package.xml b/ext/oci8/package.xml
index 15109c2bf38..450777bcf74 100644
--- a/ext/oci8/package.xml
+++ b/ext/oci8/package.xml
@@ -50,8 +50,8 @@ Interoperability Support" (ID 207303.1) for details.
  <time>12:00:00</time>
 
   <version>
-   <release>2.1.5</release>
-   <api>2.1.5</api>
+   <release>2.1.6</release>
+   <api>2.1.6</api>
   </version>
   <stability>
    <release>stable</release>
@@ -60,7 +60,6 @@ Interoperability Support" (ID 207303.1) for details.
   <license uri="http://www.php.net/license">PHP</license>
   <notes>
 This version is for PHP 7 only.
-Added TAF callback support (PR #2459, KoenigsKind) 
 Fixed bug #74625 (Integer overflow in oci_bind_array_by_name). (Ingmar Runge)
   </notes>
  <contents>
@@ -471,6 +470,22 @@ Fixed bug #74625 (Integer overflow in oci_bind_array_by_name). (Ingmar Runge)
  </extsrcrelease>
  <changelog>
 
+<release>   
+ <version>
+   <release>2.1.5</release>
+   <api>2.1.5</api>
+  </version>
+  <stability>
+   <release>stable</release>
+   <api>stable</api>
+  </stability>
+  <license uri="http://www.php.net/license">PHP</license>
+  <notes>
+This version is for PHP 7 only.
+Added TAF callback support (PR #2459, KoenigsKind) 
+  </notes>
+</release>   
+
 <release>
   <version>
    <release>2.1.4</release>
diff --git a/ext/oci8/php_oci8.h b/ext/oci8/php_oci8.h
index a036a024cbd..e5acd58787a 100644
--- a/ext/oci8/php_oci8.h
+++ b/ext/oci8/php_oci8.h
@@ -43,7 +43,7 @@
  */
 #undef PHP_OCI8_VERSION
 #endif
-#define PHP_OCI8_VERSION "2.1.5"
+#define PHP_OCI8_VERSION "2.1.6"
 
 extern zend_module_entry oci8_module_entry;
 #define phpext_oci8_ptr &oci8_module_entry
diff --git a/ext/oci8/tests/driver_name.phpt b/ext/oci8/tests/driver_name.phpt
index a707e88de8d..49616a00ad6 100644
--- a/ext/oci8/tests/driver_name.phpt
+++ b/ext/oci8/tests/driver_name.phpt
@@ -57,11 +57,11 @@ function get_attr($conn)
 ?>
 --EXPECT--
 **Test 1.1 - Default values for the attribute **************
-The value of DRIVER_NAME is PHP OCI8 : 2.1.5
+The value of DRIVER_NAME is PHP OCI8 : 2.1.6
 
 ***Test 1.2 - Get the values from different connections **************
 Testing with oci_pconnect()
-The value of DRIVER_NAME is PHP OCI8 : 2.1.5
+The value of DRIVER_NAME is PHP OCI8 : 2.1.6
 Testing with oci_new_connect()
-The value of DRIVER_NAME is PHP OCI8 : 2.1.5
+The value of DRIVER_NAME is PHP OCI8 : 2.1.6
 Done
diff --git a/ext/pcre/config0.m4 b/ext/pcre/config0.m4
index 6d5b2577911..cc9f1b262ae 100644
--- a/ext/pcre/config0.m4
+++ b/ext/pcre/config0.m4
@@ -78,12 +78,20 @@ PHP_ARG_WITH(pcre-jit,,[  --with-pcre-jit         Enable PCRE JIT functionality]
     fi
   fi
 
-PHP_ARG_WITH(pcre-valgrind,,[  --with-pcre-valgrind=DIR
-                          Enable PCRE valgrind support. Developers only!], no, no)
+  if test "$PHP_DEBUG" != "no" && test "$PHP_DEBUG" != "0"; then
+    PHP_ARG_WITH(pcre-valgrind,,[  --with-pcre-valgrind=DIR
+                          Enable PCRE valgrind support. Developers only!], yes, no)
+  else
+    PHP_ARG_WITH(pcre-valgrind,,[  --with-pcre-valgrind=DIR
+                           Enable PCRE valgrind support. Developers only!], no, no)
+  fi
+
   if test "$PHP_PCRE_REGEX" != "yes" && test "$PHP_PCRE_REGEX" != "no"; then
     AC_MSG_WARN([PHP is going to be linked with an external PCRE, --with-pcre-valgrind has no effect])
   else
-    if test "$PHP_PCRE_VALGRIND" != "no"; then
+    if test "$PHP_PCRE_VALGRIND" = "no" && test "$PHP_DEBUG" != "0"; then
+      AC_MSG_NOTICE([PCRE Valgrind support is disabled for debug build])
+    elif test "$PHP_PCRE_VALGRIND" != "no" || test "$PHP_DEBUG" != "0"; then
       PHP_PCRE_VALGRIND_INCDIR=
       AC_MSG_CHECKING([for Valgrind headers location])
       for i in $PHP_PCRE_VALGRIND $PHP_PCRE_VALGRIND/include $PHP_PCRE_VALGRIND/local/include /usr/include /usr/local/include; do
diff --git a/travis/compile.sh b/travis/compile.sh
index ddf80f994d6..b2d29b99df6 100755
--- a/travis/compile.sh
+++ b/travis/compile.sh
@@ -5,7 +5,7 @@ else
 	TS="";
 fi
 if [[ "$ENABLE_DEBUG" == 1 ]]; then
-	DEBUG="--enable-debug";
+	DEBUG="--enable-debug --without-pcre-valgrind";
 else
 	DEBUG="";
 fi