@samitouri / QOSamiQemu / commits / 396d005e4b

contrib/plugins/cpp: use __has_include

This make sure we can include all possible headers without breaking build for environments missing them. It fixes compilation on openbsd. We don't want to pollute configure script, as it's really a special case here to make sure we don't have a compilation regression with qemu-plugins header. Tested-by: John Snow <jsnow@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/qemu-devel/20260214061025.1239457-1-pierrick.bouvier@linaro.org Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>

Pierrick Bouvier committed Feb 13, 2026 at 22:10 UTC 396d005e4b83aa4a65d81778d180d545046ba0a8
1 file changed +259 -2
contrib/plugins/cpp.cpp
+259 -2
@@ -6,103 +6,360 @@
6
7 #include <qemu-plugin.h>
8
9 -/* https://en.cppreference.com/w/cpp/headers.html */
9 +/*
10 + * We include all C++ standard headers (without deprecated ones),
11 + * taken from: https://en.cppreference.com/w/cpp/headers.html
12 + *
13 + * To update, copy page text, and then:
14 + * grep '^<' |
15 + * sort -u |
16 + * grep -v strstream |
17 + * grep -v codecvt |
18 + * sed -e 's/\(.*\)/#if __has_include(\1)\n#include \1\n#endif/'
19 + */
20 +
21 +#if __has_include(<algorithm>)
22 #include <algorithm>
23 +#endif
24 +#if __has_include(<any>)
25 #include <any>
26 +#endif
27 +#if __has_include(<array>)
28 #include <array>
29 +#endif
30 +#if __has_include(<atomic>)
31 #include <atomic>
32 +#endif
33 +#if __has_include(<barrier>)
34 #include <barrier>
35 +#endif
36 +#if __has_include(<bit>)
37 #include <bit>
38 +#endif
39 +#if __has_include(<bitset>)
40 #include <bitset>
41 +#endif
42 +#if __has_include(<cassert>)
43 #include <cassert>
44 +#endif
45 +#if __has_include(<cctype>)
46 #include <cctype>
47 +#endif
48 +#if __has_include(<cerrno>)
49 #include <cerrno>
50 +#endif
51 +#if __has_include(<cfenv>)
52 #include <cfenv>
53 +#endif
54 +#if __has_include(<cfloat>)
55 #include <cfloat>
56 +#endif
57 +#if __has_include(<charconv>)
58 #include <charconv>
59 +#endif
60 +#if __has_include(<chrono>)
61 #include <chrono>
62 +#endif
63 +#if __has_include(<cinttypes>)
64 #include <cinttypes>
65 +#endif
66 +#if __has_include(<climits>)
67 #include <climits>
68 +#endif
69 +#if __has_include(<clocale>)
70 #include <clocale>
71 +#endif
72 +#if __has_include(<cmath>)
73 #include <cmath>
28 -#include <codecvt>
74 +#endif
75 +#if __has_include(<compare>)
76 #include <compare>
77 +#endif
78 +#if __has_include(<complex>)
79 #include <complex>
80 +#endif
81 +#if __has_include(<concepts>)
82 #include <concepts>
83 +#endif
84 +#if __has_include(<condition_variable>)
85 #include <condition_variable>
86 +#endif
87 +#if __has_include(<contracts>)
88 +#include <contracts>
89 +#endif
90 +#if __has_include(<coroutine>)
91 #include <coroutine>
92 +#endif
93 +#if __has_include(<csetjmp>)
94 #include <csetjmp>
95 +#endif
96 +#if __has_include(<csignal>)
97 #include <csignal>
98 +#endif
99 +#if __has_include(<cstdarg>)
100 #include <cstdarg>
101 +#endif
102 +#if __has_include(<cstddef>)
103 #include <cstddef>
104 +#endif
105 +#if __has_include(<cstdint>)
106 #include <cstdint>
107 +#endif
108 +#if __has_include(<cstdio>)
109 #include <cstdio>
110 +#endif
111 +#if __has_include(<cstdlib>)
112 #include <cstdlib>
113 +#endif
114 +#if __has_include(<cstring>)
115 #include <cstring>
116 +#endif
117 +#if __has_include(<ctime>)
118 #include <ctime>
119 +#endif
120 +#if __has_include(<cuchar>)
121 #include <cuchar>
122 +#endif
123 +#if __has_include(<cwchar>)
124 #include <cwchar>
125 +#endif
126 +#if __has_include(<cwctype>)
127 #include <cwctype>
128 +#endif
129 +#if __has_include(<debugging>)
130 +#include <debugging>
131 +#endif
132 +#if __has_include(<deque>)
133 #include <deque>
134 +#endif
135 +#if __has_include(<exception>)
136 #include <exception>
137 +#endif
138 +#if __has_include(<execution>)
139 #include <execution>
140 +#endif
141 +#if __has_include(<expected>)
142 +#include <expected>
143 +#endif
144 +#if __has_include(<filesystem>)
145 #include <filesystem>
146 +#endif
147 +#if __has_include(<flat_map>)
148 +#include <flat_map>
149 +#endif
150 +#if __has_include(<flat_set>)
151 +#include <flat_set>
152 +#endif
153 +#if __has_include(<format>)
154 +#include <format>
155 +#endif
156 +#if __has_include(<forward_list>)
157 #include <forward_list>
158 +#endif
159 +#if __has_include(<fstream>)
160 #include <fstream>
161 +#endif
162 +#if __has_include(<functional>)
163 #include <functional>
164 +#endif
165 +#if __has_include(<future>)
166 #include <future>
167 +#endif
168 +#if __has_include(<generator>)
169 +#include <generator>
170 +#endif
171 +#if __has_include(<hazard_pointer>)
172 +#include <hazard_pointer>
173 +#endif
174 +#if __has_include(<hive>)
175 +#include <hive>
176 +#endif
177 +#if __has_include(<initializer_list>)
178 #include <initializer_list>
179 +#endif
180 +#if __has_include(<inplace_vector>)
181 +#include <inplace_vector>
182 +#endif
183 +#if __has_include(<iomanip>)
184 #include <iomanip>
185 +#endif
186 +#if __has_include(<ios>)
187 #include <ios>
188 +#endif
189 +#if __has_include(<iosfwd>)
190 #include <iosfwd>
191 +#endif
192 +#if __has_include(<iostream>)
193 #include <iostream>
194 +#endif
195 +#if __has_include(<istream>)
196 #include <istream>
197 +#endif
198 +#if __has_include(<iterator>)
199 #include <iterator>
200 +#endif
201 +#if __has_include(<latch>)
202 #include <latch>
203 +#endif
204 +#if __has_include(<limits>)
205 #include <limits>
206 +#endif
207 +#if __has_include(<linalg>)
208 +#include <linalg>
209 +#endif
210 +#if __has_include(<list>)
211 #include <list>
212 +#endif
213 +#if __has_include(<locale>)
214 #include <locale>
215 +#endif
216 +#if __has_include(<map>)
217 #include <map>
218 +#endif
219 +#if __has_include(<mdspan>)
220 +#include <mdspan>
221 +#endif
222 +#if __has_include(<memory>)
223 #include <memory>
224 +#endif
225 +#if __has_include(<memory_resource>)
226 #include <memory_resource>
227 +#endif
228 +#if __has_include(<mutex>)
229 #include <mutex>
230 +#endif
231 +#if __has_include(<new>)
232 #include <new>
233 +#endif
234 +#if __has_include(<numbers>)
235 #include <numbers>
236 +#endif
237 +#if __has_include(<numeric>)
238 #include <numeric>
239 +#endif
240 +#if __has_include(<optional>)
241 #include <optional>
242 +#endif
243 +#if __has_include(<ostream>)
244 #include <ostream>
245 +#endif
246 +#if __has_include(<print>)
247 +#include <print>
248 +#endif
249 +#if __has_include(<queue>)
250 #include <queue>
251 +#endif
252 +#if __has_include(<random>)
253 #include <random>
254 +#endif
255 +#if __has_include(<ranges>)
256 #include <ranges>
257 +#endif
258 +#if __has_include(<ratio>)
259 #include <ratio>
260 +#endif
261 +#if __has_include(<rcu>)
262 +#include <rcu>
263 +#endif
264 +#if __has_include(<regex>)
265 #include <regex>
266 +#endif
267 +#if __has_include(<scoped_allocator>)
268 #include <scoped_allocator>
269 +#endif
270 +#if __has_include(<semaphore>)
271 #include <semaphore>
272 +#endif
273 +#if __has_include(<set>)
274 #include <set>
275 +#endif
276 +#if __has_include(<shared_mutex>)
277 #include <shared_mutex>
278 +#endif
279 +#if __has_include(<simd>)
280 +#include <simd>
281 +#endif
282 +#if __has_include(<source_location>)
283 #include <source_location>
284 +#endif
285 +#if __has_include(<span>)
286 #include <span>
287 +#endif
288 +#if __has_include(<spanstream>)
289 +#include <spanstream>
290 +#endif
291 +#if __has_include(<sstream>)
292 #include <sstream>
293 +#endif
294 +#if __has_include(<stack>)
295 #include <stack>
296 +#endif
297 +#if __has_include(<stacktrace>)
298 +#include <stacktrace>
299 +#endif
300 +#if __has_include(<stdexcept>)
301 #include <stdexcept>
302 +#endif
303 +#if __has_include(<stdfloat>)
304 +#include <stdfloat>
305 +#endif
306 +#if __has_include(<stop_token>)
307 #include <stop_token>
308 +#endif
309 +#if __has_include(<streambuf>)
310 #include <streambuf>
311 +#endif
312 +#if __has_include(<string>)
313 #include <string>
314 +#endif
315 +#if __has_include(<string_view>)
316 #include <string_view>
317 +#endif
318 +#if __has_include(<syncstream>)
319 #include <syncstream>
320 +#endif
321 +#if __has_include(<system_error>)
322 #include <system_error>
323 +#endif
324 +#if __has_include(<text_encoding>)
325 +#include <text_encoding>
326 +#endif
327 +#if __has_include(<thread>)
328 #include <thread>
329 +#endif
330 +#if __has_include(<tuple>)
331 #include <tuple>
332 +#endif
333 +#if __has_include(<typeindex>)
334 #include <typeindex>
335 +#endif
336 +#if __has_include(<typeinfo>)
337 #include <typeinfo>
338 +#endif
339 +#if __has_include(<type_traits>)
340 #include <type_traits>
341 +#endif
342 +#if __has_include(<unordered_map>)
343 #include <unordered_map>
344 +#endif
345 +#if __has_include(<unordered_set>)
346 #include <unordered_set>
347 +#endif
348 +#if __has_include(<utility>)
349 #include <utility>
350 +#endif
351 +#if __has_include(<valarray>)
352 #include <valarray>
353 +#endif
354 +#if __has_include(<variant>)
355 #include <variant>
356 +#endif
357 +#if __has_include(<vector>)
358 #include <vector>
359 +#endif
360 +#if __has_include(<version>)
361 #include <version>
362 +#endif
363
364 QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
365