Compile fail on android

[jiayuehua]

@ThePhD ,how are you? I want to add some projects of you to vcpkg, but fail to compile idk on android.
install-arm-neon-android-dbg-out.log
microsoft/vcpkg#34735
Error message:
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/span.hpp:130:18: error: no member named 'operator==' in namespace 'nonstd'
using ::nonstd::operator==;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/span.hpp:131:18: error: no member named 'operator!=' in namespace 'nonstd'
using ::nonstd::operator!=;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/span.hpp:132:18: error: no member named 'operator<' in namespace 'nonstd'
using ::nonstd::operator<;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/span.hpp:133:18: error: no member named 'operator<=' in namespace 'nonstd'
using ::nonstd::operator<=;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/span.hpp:134:18: error: no member named 'operator>' in namespace 'nonstd'
using ::nonstd::operator>;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/span.hpp:135:18: error: no member named 'operator>=' in namespace 'nonstd'
using ::nonstd::operator>=;
~~~~~~~~~~^
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/source/ztd/idk/encoding_detection.c.cpp:35:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/encoding_name.hpp:39:
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/char_traits.hpp:58:22: error: no type named 'mbstate_t' in namespace 'std'; did you mean simply 'mbstate_t'?
using state_type = ::std::mbstate_t;
^~~~~~~~~~~~~~~~
mbstate_t
/android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/include/bits/mbstate_t.h:47:3: note: 'mbstate_t' declared here
} mbstate_t;
^
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/source/ztd/idk/encoding_detection.c.cpp:37:
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/include/ztd/idk/detail/posix.hpp:70:25: error: use of undeclared identifier 'nl_langinfo'
const char* __name = nl_langinfo(LC_CTYPE);
^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/source/ztd/idk/encoding_detection.c.cpp:65:29: error: use of undeclared identifier 'nl_langinfo'
const char* __ctype_name = nl_langinfo(CODESET);
^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/source/ztd/idk/encoding_detection.c.cpp:108:29: error: use of undeclared identifier 'nl_langinfo'
const char* __ctype_name = nl_langinfo(CODESET);
^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/f54d488079-38e2ce903b.clean/source/ztd/idk/encoding_detection.c.cpp:228:29: error: use of undeclared identifier 'nl_langinfo'
const char* __ctype_name = nl_langinfo(CODESET);
^
11 errors generated.

[ThePhD]

Can you tell me the value of __ANDROID_API__ for your build?

[ThePhD]

(And, attempt to pull the latest and give it a try. I added some checks for this sort of stuff....)

[jiayuehua]

ANDROID_API < 24 ,but specific version I don't know.

Still report error related to span. microsoft/vcpkg#34735
install-x64-android-dbg-out.log
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/source/ztd/idk/encoding_name.c.cpp:34:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/encoding_name.hpp:39:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/char_traits.hpp:41:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/ranges/algorithm.hpp:42:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/ranges/unbounded.hpp:38:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/ranges/reconstruct.hpp:47:
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:132:18: error: no member named 'operator==' in namespace 'nonstd'
using ::nonstd::operator==;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:133:18: error: no member named 'operator!=' in namespace 'nonstd'
using ::nonstd::operator!=;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:134:18: error: no member named 'operator<' in namespace 'nonstd'
using ::nonstd::operator<;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:135:18: error: no member named 'operator<=' in namespace 'nonstd'
using ::nonstd::operator<=;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:136:18: error: no member named 'operator>' in namespace 'nonstd'
using ::nonstd::operator>;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:137:18: error: no member named 'operator>=' in namespace 'nonstd'
using ::nonstd::operator>=;
~~~~~~~~~~^
6 errors generated.
[7/9] /android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ --target=x86_64-none-linux-android21 --sysroot=/android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/sysroot -DZTD_IDK_BUILD=1 -Ddl -I/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include -I/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/source/include -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -frtti -fexceptions -fPIC -fno-limit-debug-info -std=gnu++20 -fPIC -MD -MT CMakeFiles/ztd.idk.dir/source/ztd/idk/encoding_detection.c.cpp.o -MF CMakeFiles/ztd.idk.dir/source/ztd/idk/encoding_detection.c.cpp.o.d -o CMakeFiles/ztd.idk.dir/source/ztd/idk/encoding_detection.c.cpp.o -c /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/source/ztd/idk/encoding_detection.c.cpp
FAILED: CMakeFiles/ztd.idk.dir/source/ztd/idk/encoding_detection.c.cpp.o
/android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ --target=x86_64-none-linux-android21 --sysroot=/android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/sysroot -DZTD_IDK_BUILD=1 -Ddl -I/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include -I/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/source/include -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -frtti -fexceptions -fPIC -fno-limit-debug-info -std=gnu++20 -fPIC -MD -MT CMakeFiles/ztd.idk.dir/source/ztd/idk/encoding_detection.c.cpp.o -MF CMakeFiles/ztd.idk.dir/source/ztd/idk/encoding_detection.c.cpp.o.d -o CMakeFiles/ztd.idk.dir/source/ztd/idk/encoding_detection.c.cpp.o -c /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/source/ztd/idk/encoding_detection.c.cpp
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/source/ztd/idk/encoding_detection.c.cpp:35:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/encoding_name.hpp:39:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/char_traits.hpp:41:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/ranges/algorithm.hpp:42:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/ranges/unbounded.hpp:38:
In file included from /mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/ranges/reconstruct.hpp:47:
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:132:18: error: no member named 'operator==' in namespace 'nonstd'
using ::nonstd::operator==;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:133:18: error: no member named 'operator!=' in namespace 'nonstd'
using ::nonstd::operator!=;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:134:18: error: no member named 'operator<' in namespace 'nonstd'
using ::nonstd::operator<;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:135:18: error: no member named 'operator<=' in namespace 'nonstd'
using ::nonstd::operator<=;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:136:18: error: no member named 'operator>' in namespace 'nonstd'
using ::nonstd::operator>;
~~~~~~~~~~^
/mnt/vcpkg-ci/buildtrees/ztd-idk/src/b7f3fd0b20-34b2848edb.clean/include/ztd/idk/span.hpp:137:18: error: no member named 'operator>=' in namespace 'nonstd'
using ::nonstd::operator>=;
~~~~~~~~~~^
6 errors generated.
ninja: build stopped: subcommand failed.

[ThePhD]

How do you get that build log? Also, every time you post the file, it's empty.

What is the compiler that gets used for NDK builds? Is it some version of GCC, or some version of Clang?

[jiayuehua]

I get it from vcpkg CI log. fail logs

pipeline artifacts

this time the log should be not empty, I checked.
install-x64-android-dbg-out.log ,judge from the log , the compiler is clang, and use it to cross-compile

/android-ndk-r25c/toolchains/llvm/prebuilt/linux-x86_64/bin/clang --target=x86_64-none-linux-android21.

'download artifacts' can download vcpkg ci logs.

[ThePhD]

I cannot seem to reproduce the error, but I did push some different attempts to get it building. I tried with Clang 14.0.6 on a Debian x86_64 machine, which is the closest thing I could get to an Android on this....

Give the latest a try, let me know how it goes.

[jiayuehua]

After some digest, I know the reason. On android, In

idk/include/ztd/idk/span.hpp

Line 42 in 75b470c

#if ZTD_IS_ON(ZTD_STD_LIBRARY_SPAN)

here ZTD_IS_ON(ZTD_STD_LIBRARY_SPAN) evaluate to false but in

idk/include/ztd/idk/detail/span.implementation.hpp

Line 206 in 75b470c

#define span_HAVE_STD_SPAN 1

span_HAVE_STD_SPAN evaluate to true. so

idk/include/ztd/idk/detail/span.implementation.hpp

Line 214 in 75b470c

#define span_USES_STD_SPAN \

span_USES_STD_SPAN evaluate to true. I have open a pr. #13

also I have open a pr soasis/cuneicode#7.

after those fix, the pr microsoft/vcpkg#34735 can build successfully.

[jiayuehua]

I follow this https://learn.microsoft.com/en-us/vcpkg/users/platforms/android and use './vcpkg install ztd-idk:x64-android', manage to reproduce the issue localy.

[ThePhD]

I fixed this by completely reimplementing span. Try the latest and let me know if things are still broken. It should be okay now, though!