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logical changes backported from:
https://github.com/kovidgoyal/calibre/commit/a3d3d8d33e314ccabb5099e78e4056a79b7c9aa2
https://bugs.gentoo.org/936270
diff -rup a/setup/build.py b/setup/build.py
--- a/setup/build.py 2022-06-17 04:35:27.000000000 +0200
+++ b/setup/build.py 2024-07-19 11:51:56.374389213 +0200
@@ -65,6 +65,8 @@ class Extension:
self.cflags.insert(0, '-std=c++11')
elif kwargs.get('needs_c++14'):
self.cflags.insert(0, '-std=c++14')
+ elif kwargs.get('needs_c++17'):
+ self.cflags.insert(0, '-std=c++17')
else:
if kwargs.get('needs_c99'):
self.cflags.insert(0, '-std=c99')
diff -rup a/setup/extensions.json b/setup/extensions.json
--- a/setup/extensions.json 2022-06-17 04:35:27.000000000 +0200
+++ b/setup/extensions.json 2024-07-19 11:52:11.253389395 +0200
@@ -75,7 +75,7 @@
"name": "sqlite_extension",
"headers": "calibre/utils/cpp_binding.h",
"sources": "calibre/db/sqlite_extension.cpp",
- "needs_c++14": true,
+ "needs_c++17": true,
"libraries": "icudata icui18n icuuc icuio stemmer",
"windows_libraries": "icudt icuin icuuc icuio libstemmer",
"lib_dirs": "!icu_lib_dirs",
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