Fix build with new libewf
https://github.com/simsong/bulk_extractor/commit/cba75d87b7091ffb344afbc4dad83cce52331ac3
--- configure.ac.orig
+++ configure.ac
@@ -366,7 +366,7 @@
 		[libewf=no])],
 	[AC_MSG_WARN([libewf.h not found; no E01 support])]
 	[libewf=no])
-  AC_CHECK_FUNCS([libewf_handle_get_utf8_header_value_notes libewf_error_backtrace_fprint])
+  AC_CHECK_FUNCS([libewf_handle_get_utf8_header_value_notes libewf_error_backtrace_fprint libewf_handle_close libewf_handle_free libewf_handle_read_buffer_at_offset libewf_handle_read_random])
 fi
 AC_MSG_NOTICE([libewf is now $libewf])
 
--- src/image_process.cpp.orig
+++ src/image_process.cpp
@@ -322,7 +322,7 @@
 
 process_ewf::~process_ewf()
 {
-#ifdef LIBEWFNG
+#ifdef HAVE_LIBEWF_HANDLE_CLOSE
     if(handle){
 	libewf_handle_close(handle,NULL);
 	libewf_handle_free(&handle,NULL);
@@ -340,7 +340,7 @@
     char **libewf_filenames = NULL;
     int amount_of_filenames = 0;
 
-#ifdef LIBEWFNG
+#ifdef HAVE_LIBEWF_HANDLE_CLOSE
     libewf_error_t *error=0;
     if(libewf_glob(fname,strlen(fname),LIBEWF_FORMAT_UNKNOWN,
 		   &libewf_filenames,&amount_of_filenames,&error)<0){
@@ -416,9 +416,14 @@
 //int process_ewf::debug = 0;
 int process_ewf::pread(unsigned char *buf,size_t bytes,int64_t offset) const
 {
-#ifdef LIBEWFNG
+#ifdef HAVE_LIBEWF_HANDLE_CLOSE
     libewf_error_t *error=0;
+#if defined(HAVE_LIBEWF_HANDLE_READ_RANDOM)
     int ret = libewf_handle_read_random(handle,buf,bytes,offset,&error);
+#endif
+#if defined(HAVE_LIBEWF_HANDLE_READ_BUFFER_AT_OFFSET) && !defined(HAVE_LIBEWF_HANDLE_READ_RANDOM)
+    int ret = libewf_handle_read_buffer_at_offset(handle,buf,bytes,offset,&error);
+#endif
     if(ret<0){
 	if (report_read_errors) libewf_error_fprint(error,stderr);
 	libewf_error_free(&error);