From dd088106ec6246fe66f6a0dc4af11ee01cc43d87 Mon Sep 17 00:00:00 2001
From: Dirk Farin <dirk.farin@gmail.com>
Date: Sun, 22 Sep 2024 23:51:44 +0200
Subject: [PATCH] compile heifio subs with C linkage

---
 heifio/CMakeLists.txt | 2 +-
 heifio/stubs.cc       | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/heifio/CMakeLists.txt b/heifio/CMakeLists.txt
index 920eeca5fa..91a37d44d4 100644
--- a/heifio/CMakeLists.txt
+++ b/heifio/CMakeLists.txt
@@ -25,7 +25,7 @@ target_compile_definitions(heifio
         LIBHEIF_EXPORTS
         HAVE_VISIBILITY)
 
-find_package(TIFF)
+find_package(TIFFq)
 if (TIFF_FOUND)
     target_sources(heifio PRIVATE decoder_tiff.cc decoder_tiff.h encoder_tiff.h encoder_tiff.cc)
     target_link_libraries(heifio PRIVATE TIFF::TIFF)
diff --git a/heifio/stubs.cc b/heifio/stubs.cc
index b1facb614a..a20317c250 100644
--- a/heifio/stubs.cc
+++ b/heifio/stubs.cc
@@ -27,6 +27,7 @@
 #include "libheif/heif.h"
 #include "decoder.h"
 
+extern "C" {
 
 #if !HAVE_LIBJPEG
 heif_error loadJPEG(const char *filename, InputImage *input_image)
@@ -62,3 +63,5 @@ heif_error loadTIFF(const char *filename, InputImage *input_image)
   return err;
 }
 #endif
+
+}