From bbff557f8c63cd1b9405738f202b70e1067014ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny@gentoo.org>
Date: Mon, 10 Feb 2025 06:26:45 +0100
Subject: [PATCH] Fix build against a standard zopfli install

Fix the logic to accept a top-level `zopfli.h` header, as that is
the location used by upstream's build system.
---
 libqpdf/CMakeLists.txt | 2 +-
 libqpdf/Pl_Flate.cc    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libqpdf/CMakeLists.txt b/libqpdf/CMakeLists.txt
index 285afb86..91344a59 100644
--- a/libqpdf/CMakeLists.txt
+++ b/libqpdf/CMakeLists.txt
@@ -192,7 +192,7 @@ if(NOT EXTERNAL_LIBS)
 endif()
 
 if(ZOPFLI)
-  find_path(ZOPFLI_H_PATH zopfli/zopfli.h)
+  find_path(ZOPFLI_H_PATH NAMES zopfli.h PATH_SUFFIXES zopfli)
   find_library(ZOPFLI_LIB_PATH NAMES zopfli)
   if(ZOPFLI_H_PATH AND ZOPFLI_LIB_PATH)
     list(APPEND dep_include_directories ${ZOPFLI_H_PATH})
diff --git a/libqpdf/Pl_Flate.cc b/libqpdf/Pl_Flate.cc
index 97a337b4..724b4435 100644
--- a/libqpdf/Pl_Flate.cc
+++ b/libqpdf/Pl_Flate.cc
@@ -9,7 +9,7 @@
 #include <qpdf/qpdf-config.h>
 
 #ifdef ZOPFLI
-# include <zopfli/zopfli.h>
+# include <zopfli.h>
 #endif
 
 namespace