File 0001-pdf-backend-fix-compat-with-Poppler-22.02.patch of Package pdf2djvu

From 628b168f0b99d39cb20b71eb29683bcb26f85e0a Mon Sep 17 00:00:00 2001
From: Jakub Wilk <jwilk@jwilk.net>
Date: Wed, 16 Feb 2022 09:08:11 +0000
Subject: [PATCH 1/3] pdf-backend: fix compat with Poppler > 22.02.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fixes:

    pdf-backend.cc: In constructor ‘pdf::Document::Document(const string&)’:
    pdf-backend.cc:133:64: error: no matching function for call to ‘PDFDoc::PDFDoc(pdf::String*, std::nullptr_t, std::nullptr_t)’

https://cgit.freedesktop.org/poppler/poppler/commit/?id=07889cdfd8a261dc
---
 pdf-backend.cc | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/pdf-backend.cc b/pdf-backend.cc
index 3c871b1..c74053d 100644
--- a/pdf-backend.cc
+++ b/pdf-backend.cc
@@ -129,8 +129,27 @@ void pdf::Environment::set_antialias(bool value)
  * ===================
  */
 
+template <typename T>
+class unique_ptr_adapter
+{
+protected:
+  std::unique_ptr<T> uptr;
+public:
+  unique_ptr_adapter(T *ptr)
+  : uptr(ptr)
+  { }
+  operator std::unique_ptr<T> ()
+  {
+    return std::move(this->uptr);
+  }
+  operator T* ()
+  {
+    return this->uptr.release();
+  }
+};
+
 pdf::Document::Document(const std::string &file_name)
-: ::PDFDoc(new pdf::String(file_name.c_str()), nullptr, nullptr)
+: ::PDFDoc(unique_ptr_adapter<pdf::String>(new pdf::String(file_name.c_str())), nullptr, nullptr)
 {
   if (!this->isOk())
     throw LoadError();
-- 
2.35.1