Компилирую вот по этому ману.
Вылетает такая ошибка:
[ 25%] Building CXX object libsolidity/CMakeFiles/solidity.dir/codegen/CompilerUtils.cpp.o
/home/dar/solidity/libsolidity/codegen/CompilerUtils.cpp: В функции-члене «void dev::solidity::CompilerUtils::convertType(const dev::solidity::Type&, const dev::solidity::Type&, bool, bool, bool)»:
/home/dar/solidity/libsolidity/codegen/CompilerUtils.cpp:788:3: ошибка: this statement may fall through [-Werror=implicit-fallthrough=]
}
^
/home/dar/solidity/libsolidity/codegen/CompilerUtils.cpp:790:2: замечание: here
default:
^~~~~~~
cc1plus: все предупреждения считаются ошибками
make[2]: *** [libsolidity/CMakeFiles/solidity.dir/build.make:543: libsolidity/CMakeFiles/solidity.dir/codegen/CompilerUtils.cpp.o] Ошибка 1
make[1]: *** [CMakeFiles/Makefile2:275: libsolidity/CMakeFiles/solidity.dir/all] Ошибка 2
make: *** [Makefile:130: all] Ошибка 2
Что могло пойти не так?
retorta
2,60812 серебряных знаков20 бронзовых знаков
задан 28 июн 2017 в 13:16
3
Скорее всего, у вас включён флаг -Werror. Его можно отключить целиком (найти поиском в CMakeList), или отключить конкретную проверку, добавив -Wno-error=implicit-fallthrough к флагам компиляции. Ну или можно подправить исходники, чтобы для каждого case был свой break.
Кроме того, если я правильно понял, это только на gcc-7 работает, разработчики добавили флаг в основном в связи с добавлением в C++17 атрибута [[fallthrough]]. Из-за этого добавление -Wno-error=implicit-fallthrough приведет к сбою для более старых версий gcc.
ответ дан 28 июн 2017 в 21:11
ArioxAriox
2,9801 золотой знак7 серебряных знаков8 бронзовых знаков
Проблема в том, что тот же код, который хорошо компилируется в Windows, не может скомпилироваться на Ubuntu. Каждый раз, когда я получаю эту ошибку:
cc1: warnings being treated as errors
Теперь это большая база кода, и мне не нравятся исправления всех предупреждений.
Можно ли успешно скомпилировать, несмотря на предупреждения?
Ответ 1
Спасибо за все полезные предложения. Наконец, я убедился, что в моем коде нет предупреждений, но снова получил это предупреждение от sqlite3:
Assuming signed overflow does not occur when assuming that (X - c) <= X is always true
который я исправил добавлением следующего CFLAG:
-fno-strict-overflow
Ответ 2
Конечно, найдите, где -Werror установлен и удалите этот флаг. Тогда предупреждения будут только предупреждениями.
Ответ 3
Вы можете сделать все предупреждения обработаны как таковые, используя -Wno-error. Вы можете сделать конкретные предупреждения как таковые, используя -Wno-error=<warning name>, где <warning name> — это имя предупреждения, которое вы не хотите рассматривать как ошибку.
Если вы хотите полностью отключить все предупреждения, используйте -w (не рекомендуется).
Источник: http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Warning-Options.html
Ответ 4
Если вы компилируете ядро Linux. Например, если вы хотите отключить предупреждение, которое является «unused-but-set-variable», оно рассматривается как ошибка. Вы можете добавить выражение:
KBUILD_CFLAGS += $(call cc-option,-Wno-error=unused-but-set-variable,)
в файле Makefile
Ответ 5
-Wall и -Werror параметры компилятора могут вызвать его, проверьте, используются ли они в настройках компилятора.
Ответ 6
Удалите -Werror из ваших файлов Make или CMake, как предложено в этом сообщении
In system:
Fedora 21
Ruby 2.1.7
GCC 4.9.2
I follow the instructions for installing simstring but afer
$ruby extconf.rb
when trying to make and make install, I got an error:
cc1plus: some warnings being treated as errors
Makefile:217: recipe for target 'export_wrap.o' failed
make: *** [export_wrap.o] Error 1
And the entire log of this error is bellow
Error Log
I searched about this error but all of replies are about how to disable Werrors and configure with ignoring werrors.
Is there any solution?I think something not mentioned but i don’t know what..
asked May 6, 2016 at 12:31
Ответ 1
Спасибо за все полезные предложения. Наконец, я убедился, что в моем коде нет предупреждений, но снова получил это предупреждение от sqlite3:
Assuming signed overflow does not occur when assuming that (X - c) <= X is always true
который я исправил добавлением следующего CFLAG:
-fno-strict-overflow
Ответ 2
Конечно, найдите, где -Werror установлен и удалите этот флаг. Тогда предупреждения будут только предупреждениями.
Ответ 3
Вы можете сделать все предупреждения обработаны как таковые, используя -Wno-error. Вы можете сделать конкретные предупреждения как таковые, используя -Wno-error=<warning name>, где <warning name> — это имя предупреждения, которое вы не хотите рассматривать как ошибку.
Если вы хотите полностью отключить все предупреждения, используйте -w (не рекомендуется).
Источник: http://gcc.gnu.org/onlinedocs/gcc-4.3.2/gcc/Warning-Options.html
Ответ 4
Если вы компилируете ядро Linux. Например, если вы хотите отключить предупреждение, которое является «unused-but-set-variable», оно рассматривается как ошибка. Вы можете добавить выражение:
KBUILD_CFLAGS += $(call cc-option,-Wno-error=unused-but-set-variable,)
в файле Makefile
Ответ 5
-Wall и -Werror параметры компилятора могут вызвать его, проверьте, используются ли они в настройках компилятора.
Ответ 6
Удалите -Werror из ваших файлов Make или CMake, как предложено в этом сообщении
In system:
Fedora 21
Ruby 2.1.7
GCC 4.9.2
I follow the instructions for installing simstring but afer
$ruby extconf.rb
when trying to make and make install, I got an error:
cc1plus: some warnings being treated as errors
Makefile:217: recipe for target 'export_wrap.o' failed
make: *** [export_wrap.o] Error 1
And the entire log of this error is bellow
Error Log
I searched about this error but all of replies are about how to disable Werrors and configure with ignoring werrors.
Is there any solution?I think something not mentioned but i don’t know what..
asked May 6, 2016 at 12:31
2
I searched about this error
That’s not an error. It’s a notification. It notifies that some warnings have been treated as errors.
I searched about this error but all of replies are about how to disable Werrors and configure with ignoring werrors. Is there any solution?
You answered your own question. If the source code of the program generates warnings, and if the compiler is asked to treat warnings as errors, then the compiler will refuse to compile the program. Complete list of possible solutions are:
- Fix the source code to not generate warnings. This is a very good idea.
- Stop asking the compiler to treat warnings as errors (this is the solution that you already found). You should still fix the code to not generate a warning.
- Ask the compiler to ignore the warnings entirely. This is usually a bad idea unless you understand the warning and know what you’re doing.
answered May 6, 2016 at 12:52
eerorikaeerorika
231k12 gold badges195 silver badges321 bronze badges
1
If you are compiling some C program or open source package using Makefile which is written by someone else, there are chances you may encounter error as “cc1: all warnings being treated as errors” and you will not be able to compile the program or package.
So this error, tells us that there are some “warnings” in the program and those are getting considered as “errors” forcing you to fist fix those errors to proceed with the compilation, so there are following ways to proceed,
1. Its always better to resolve those errors if you have time.
2. If you dont have time, and can ignore “warnings” for a while, just search the code as,
grep -r Werror *
to identify which Makefile is enabling “Werror”
3. remove/delete this completely from that Makefile or Change it to “-wno-error”
4. save this makefile and recompile the code. This will show the warnings but will not stop compilation reporting those as errors.
Now, let me show how this works with the simple program.
Create a helloworld.c as below,
#include <stdio.h>
int main(int argc, char **argv) {
void *p;
printf("Hello Worldn");
p = 10;
return 0;
}Above program purposefully creates a warning in which we are trying to set integer number to void pointer.
Now, lets try to compile this program as it is,
$ gcc helloworld.c
helloworld.c: In function ‘main’:
helloworld.c:6:4: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
p = 10;
^
This actually went ahead to create a.out by showing one warning as above. But in case of big programs, we dont know how many actual warnings will be,
hence we will enable “show all warnings” macro “-Wall” during command line,
$ gcc helloworld.c -Wall
helloworld.c: In function ‘main’:
helloworld.c:6:4: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
p = 10;
^
helloworld.c:4:8: warning: variable ‘p’ set but not used [-Wunused-but-set-variable]
void *p;
^
Now, lets force all those warnings as errors, so someone should not be able to create executable without resolving this errors,
$ gcc helloworld.c -Wall -Werror
helloworld.c: In function ‘main’:
helloworld.c:6:4: error: assignment makes pointer from integer without a cast [-Werror=int-conversion]
p = 10;
^
helloworld.c:4:8: error: variable ‘p’ set but not used [-Werror=unused-but-set-variable]
void *p;
^
cc1: all warnings being treated as errors
And now the ultimate workaround to temporarily proceed with creating executable without resolving these error, if you just need to get it compiled somehow since your boss has asked to get it done asap. 🙂
$ gcc -o helloworld helloworld.c -Wall -Wno-error
helloworld.c: In function ‘main’:
helloworld.c:6:4: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
p = 10;
^
helloworld.c:4:8: warning: variable ‘p’ set but not used [-Wunused-but-set-variable]
void *p;
^
And this is how it will create the executable without resolving this warnings.
$ ls helloworld helloworld.c
Same things can be done in Makefiles by passing CFLAGS=-Wno-error & CFLAGS=-Werror
System information
-PaddlePaddle version: Latest Develop branch
-CPU: MKLDNN, CLX
-GPU: Irrelevant/not used
-OS Platform: Ubuntu 18.04
-Python version: 2.7.12
-Install method: building from source, gcc (Ubuntu 5.4.0-6ubuntu1~16.04.11) 5.4.0 20160609
To Reproduce
Steps to reproduce the behavior:
cmake .. -DCMAKE_BUILD_TYPE=Release -DWITH_GPU=OFF -DWITH_MKLDNN=ON -DWITH_TESTING=ON -DWITH_PROFILER=ON -DWITH_STYLE_CHECK=OFF -DON_INFER=ON -DWITH_INFERENCE_API_TEST=ON
Describe your current behavior
During make:
cc1plus: all warnings being treated as errors
(…)
Makefile:138: recipe for target ‘all’ failed
make: *** [all] Error 2
Other info / logs
make -j 20
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[ 23%] Built target inlined_vector_test
In file included from /repos/paddle_paddle/paddle/fluid/memory/allocation/test_aligned_allocator.cc:15:0:
/repos/paddle_paddle/build/third_party/install/gtest/include/gtest/gtest.h: In instantiation of ‘testing::AssertionResult testing::internal::CmpHelperEQ(const char*, const char*, const T1&, const T2&) [with T1 = long unsigned int; T2 = int]’:
/repos/paddle_paddle/build/third_party/install/gtest/include/gtest/gtest.h:1472:23: required from ‘static testing::AssertionResult testing::internal::EqHelper<lhs_is_null_literal>::Compare(const char*, const char*, const T1&, const T2&) [with T1 = long unsigned int; T2 = int; bool lhs_is_null_literal = false]’
/repos/paddle_paddle/paddle/fluid/memory/allocation/test_aligned_allocator.cc:23:266: required from here
/repos/paddle_paddle/build/third_party/install/gtest/include/gtest/gtest.h:1444:11: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
if (lhs == rhs) {
^
cc1plus: all warnings being treated as errors
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In file included from /repos/paddle_paddle/paddle/fluid/memory/allocation/best_fit_allocator_test.cc:21:0:
/repos/paddle_paddle/build/third_party/install/gtest/include/gtest/gtest.h: In instantiation of ‘testing::AssertionResult testing::internal::CmpHelperEQ(const char*, const char*, const T1&, const T2&) [with T1 = long unsigned int; T2 = int]’:
/repos/paddle_paddle/build/third_party/install/gtest/include/gtest/gtest.h:1472:23: required from ‘static testing::AssertionResult testing::internal::EqHelper<lhs_is_null_literal>::Compare(const char*, const char*, const T1&, const T2&) [with T1 = long unsigned int; T2 = int; bool lhs_is_null_literal = false]’
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if (lhs == rhs) {
^
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/repos/paddle_paddle/build/third_party/install/gtest/include/gtest/gtest.h: In instantiation of ‘testing::AssertionResult testing::internal::CmpHelperNE(const char*, const char*, const T1&, const T2&) [with T1 = long unsigned int; T2 = int]’:
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Makefile:138: recipe for target ‘all’ failed
make: *** [all] Error 2
References:
Internet is a lot to say in the makefile «-Werror» removed, but no makefile NS3, can not be modified options to find the build in the root directory of NS3 / c4che / cache.py file, NS3 build process through the script file configure, and delete -werror option in the file (there are several, by looking to find and delete).
[Supplement] Someone mentioned the presence of «-Werror» will repeat the question again, indeed! run./waf configureAfter the command to reconfigure, delete «-Werror» will be repeated again. The solution is to use this project without frequent configuration command, after the initial run some configuration, behind the basic need for a big change.
Solution 2:
Reference 1:
Reference 2:
Reference 1 explains waf configure setup options, Reference 2 describes how to set the C / C ++ compiler to ignore the warning. It can be used in combination.
Firstly configure settings before running ./waf:
CXXFLAGS="-Wno-error" ./waf configure // Note that there are no spaces around the equal sign
Then the compiler can ignore the warning after // to carry out the configurationNote: You can use method 1 in the effectiveness of case 2, (because I use in another project 1 failure ha ha ha). Recently, continuously updated, the welcome discussions and exchange.
0
1
сколько времени я потратил на сборку этого — неизвестно даже мне самому,
у всех это так легко получается..
ближе к сути,
при сборке ядра андроида всячески вылезают ошибки, ответы на которые в гугле не навалом, хотелось бы разобрать их в компании с вами, и забыть весь этот ужас с мучениями как страшный сон.
я начну.
root@WitheringCorp:~/Xiaomi_Kernel_OpenSource# make
CHK include/config/kernel.release
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
CHK include/generated/bounds.h
CHK include/generated/timeconst.h
CHK include/generated/asm-offsets.h
CALL scripts/checksyscalls.sh
CHK scripts/mod/devicetable-offsets.h
CHK include/generated/compile.h
CHK kernel/config_data.h
CHK kernel/kheaders_data.tar.xz
GEN kernel/kheaders_data.tar.xz
./kernel/gen_kheaders.sh: строка 61: /tools/build/cpio: Нет такого файла или каталога
make[1]: *** [kernel/Makefile:142: kernel/kheaders_data.tar.xz] Ошибка 127
make: *** [Makefile:1163: kernel] Ошибка 2
7 ответов
Лучший ответ
Конечно, найдите, где установлен -Werror, и удалите этот флаг. Тогда предупреждения будут только предупреждениями.
96
Peter Mortensen
7 Авг 2022 в 22:53
Удалите -Werror из ваших файлов Make или CMake, как предложено в этом сообщении.
12
Peter Mortensen
8 Авг 2022 в 00:00
Если вы компилируете ядро Linux:
Например, если вы хотите отключить предупреждение, которое «неиспользуемая, но заданная переменная» рассматривается как ошибка. Вы можете добавить заявление:
KBUILD_CFLAGS += $(call cc-option,-Wno-error=unused-but-set-variable,)
В вашем Makefile.
4
Peter Mortensen
7 Авг 2022 в 23:30
Решение:
CFLAGS=-Wno-error ./configure
20
Zibri
13 Мар 2020 в 16:41
-Wall и -Werror. Пожалуйста, проверьте, используются ли они в настройках компилятора.
4
Peter Mortensen
7 Авг 2022 в 23:09