Commit Graph

597 Commits

Author SHA1 Message Date
Derek Bailey
72730ecd8a [C++] Removed most heap allocations in builder (#6620)
* [C++] Removed most heap allocations in builder

* Updated API docs to indicate heap usage

* Override assertion for heap allocation in parser

* Cleaned up implemenations, enable heap alloc for tests

* Generalized CreateVectorOfStrings

* remove cmake option for heap alloc. reverted two heap removals

* Only use scratch space for vector of strings

* Override Windows SCL warning

* Changed std::transform to for loop to avoid MSCV warnings

* switched to const iterators
2021-05-17 10:53:32 -07:00
Derek Bailey
ef0eb3701d Ran clang-format-all.sh. Removed default --style=file parameter (#6639)
* Ran clang-format-all.sh. Removed default --style=file parameter

* Moved scripts to scripts/ location
2021-05-15 12:54:08 -07:00
Casper
04b10f5a3a Deprecate EnumVal.object (#6612)
Co-authored-by: Casper Neo <cneo@google.com>
2021-05-13 14:57:36 -07:00
Wouter van Oortmerssen
6ed780dbd5 C++/Rust version changes 2021-05-10 11:29:32 -07:00
Vladimir Glavnyy
c8c16de167 Fix reverse iterators for Vector and Array (#6626)
This commit fixes two serious issues connected with reverse iterators:
1. Vector's rbegin/rend was incompatible with std::reverse_iterator::base();
2. Array's rend() was incorrect, it based on end() instead of begin().
2021-05-10 09:07:56 -07:00
Casper
16836ff95a Add advance feature indicators to reflection (#6546)
* Add advance feature indicators to reflection

* deserialize too

* model advanced features as bitflags

* use uint64_t instead of AdvancedFeatures

* git clang format

* initialize advanced_features_

* remove whitespace

Co-authored-by: Casper Neo <cneo@google.com>
2021-04-27 10:10:59 -04:00
Jeong YunWon
276b1bc342 [grpc] Support latest version of grpc PoC (#6338)
* use grpcpp rather than deprecated grpc++

* grpcpp Deserialize take ByteBuffer instead of grpc_byte_buffer

* grpc 1.36.0

* Fix to use grpc 1.36.0

* Fix CMakeLists to refer gRPC

* add find_package(Threads)

* Update bazel deps

* Apply workaround about boringssl build error

* Install latest cmake for osx on travis-ci

Co-authored-by: Yeom Gyusun <omniavinco@gmail.com>
2021-03-25 12:12:35 -07:00
Michael
78f0c0d1d9 [C++] #6501 - Problem when mapping a native type multiple times (#6514)
* [C++] #6501 - Problem when mapping a native type multiple times
- idl.h:
added "native_type_pack_name"
- flatbuffers.h:
added CreateVectorOfNativeStructs variants which receive a pointer to the serialization function
- idl_gen_cpp.cpp:
adapted code generation in case "native_type_pack_name" attribute is present
- extended tests & docs; improved surrounding native_type docs a little

* integrated review feedback
2021-03-18 11:01:50 -07:00
Vladimir Glavnyy
69b329fc87 [flexbuffers, json] Parse nan and inf (#6512) 2021-03-15 11:44:42 -07:00
Ben Niu
9a4f1f434b Disable x64-specific optimizations for ARM64EC ReadInt64 (#6506)
ARM64EC is a new ARM64 ABI designed by Microsoft to support x64 application emulation on ARM64 CPUs. When compiling for ARM64EC, both the _M_X64 and _M_ARM64EC macros are defined. However, that causes problem in compiling this file, because the __movsb intrinsic, which is lowered to rep movsb, is not supported on ARM64, so the optimization for native x64 should be disabled for ARM64EC.
2021-03-08 10:53:04 -08:00
David P. Sicilia
a69815f72c [C++17] Add compile-time reflection for fields. (#6324)
* [C++17] Add compile-time reflection for fields.

Included in this commit is the following:

  - The C++ generator has been modified so that,
    when in C++17 mode, it will emit Table and
    Struct field traits that can be used at com-
    pile time as a form of static reflection. This
    includes field types, field names, and a tuple
    of field getter results.

  - Diffs to the cpp17 generated files. No other
    generated files are affected.

  - A unit test that also serves as an example. It
    demonstrates how to use the full power of this
    reflection to implement a full recursive
    JSON-like stringifier for Flatbuffers types,
    but without needing any runtime access to the
    *.fbs definition files; the computation is
    done using only static reflection.

Tested on Linux with gcc 10.2.0.

Fixes #6285.

* Fix int-conversion warning on MSVC.

* Try to fix std::to_string ambiguity on MSVC.

* Fix clang-format diffs.

* Fix more clang-format diffs.

* Fix last clang-format diff.

* Enable C++17 build/test for VC 19 platform in CI.

* Forgot to add value to cmake command line variable.

* Various fixes/changes in response to @vglavnyy's feedback.

* Replace "fields pack" with index-based getters.

* Fix MSVC error.

* Fix clang-format diffs.

* getter_for method returns result instead of address-of-getter.

* Next round of reviewer suggestions.

* Use type instead of hardcoded struct name.

* Fix clang-format diff.

* Add test for FieldType since it is not used in the stringify test.

* Add fields_number field to Traits struct.

* Add --cpp-static-reflection flag and put those features behind it.

* Fix clang-format diffs.

* Remove <tuple> include.
2021-03-05 10:01:40 -08:00
Mark Spatz
bd4e0b30a7 [idl_parser] Track included files by hash (#6434)
* [idl_gen] Delete ts::GenPrefixedImport()

I don't know what this is for, but it's the only piece of code external
to idl_parser.cpp that expects the key of Parser::included_files_ to be
a path. And it appears to be unused.

* [idl_parser] Track included files by hash

Parser::included_files_ is a map whose main purpose is to keep track of
which files have already been parsed in order to protect against
multiple inclusion. Its key is the path that the file was found at
during parsing (or, if it's an in-memory file, just its name).

This commit changes the key to be the 64 bit FNV-1a hash of the file's
name (just the name, not the complete path) xor'd with the hash of the
file's contents (unless it's an in-memory file, then we only hash the
name.)

This allows multiple include protection to function even in the face of
unique per-file include paths (fixes #6425).

* Ran tests/generate_code.sh

CI told me to do it.

* Gracefullt handle case where source_filename == nullptr

I just learned source_filename might also be null. In that case, we
should exclude it from the hash instead of hashing a zero length
string, just like we exclude source when it is null.

Presumably nameless files will never be included (they can't, can they?)
so this doesn't really matter, but I think it's prettier anyways.
2021-03-01 12:34:01 -08:00
Casper
86401e078d Default strings and vectors: Parser + Rust support (#6421)
* Fix tests.cpp

* Parser support for vector/string defaults

* tests and default empty vectors

* addressed comments

* Default strings and vectors for Rust

* Tested Rust more_defaults

* git-clang-format

* add more_defaults_test

* fixed vector default

* removed commented out code

* more unreachable

Co-authored-by: Casper Neo <cneo@google.com>
2021-02-12 09:41:10 -05:00
Vladimir Glavnyy
fee095410b [idl_parser] Validate force_align on all possible paths (#6430)
* [idl_parser] Validate `force_align` on all possible paths

- added validation of `force_align` for `Vector`.
- added assertion to `flatbuffers::PreAlign` method

These changes should resolve following oss-fuzz issues:
- 6275816289861632
- 5713529908887552
- 4761242994606080

* size_t problem on Mac

* Fix review notes
2021-02-10 11:37:16 -08:00
Casper
e581013e3d Refactor FieldDef to model presense as an enum rather than 2 bools. (#6420)
* Define presence.

* Migrate to IsRequired and IsOptional methods

* moved stuff around

* Removed optional and required bools from FieldDef

* change assert to return error

* Fix tests.cpp

* MakeFieldPresence helper

* fmt

* old c++ compatibility stuff

Co-authored-by: Casper Neo <cneo@google.com>
2021-01-25 09:29:43 -08:00
mustiikhalil
786f69b248 Formats cpp code (#6349) 2021-01-22 10:46:53 -08:00
Björn Harrtell
760c657551 [TS/JS] New gen TS code gen (#6302)
* TS/ES6 modules spike iteration 1

* Initial modularized dasherized output

* Remove obsoleted parts and namespace wrapping

* Use _flatbuffers_ prefix

* First part of imports logic

* Second part of imports logic

* Fix TS/JS code removal mixup

* Alias imported symbols if same name from different namespaces and some fixes

* Use star import for bare imports

* Fix messed up string concat

* var to const and remove not needed semi

* Remove some cases of ns prefixing

* Add missing space

* Cleanups

* Completed initial import tracking logic

* Compilable output

* Adjust TypeScriptTest and dependents to work

* Use local flatbuffers package for tests

* Refactor away use of any

* Remove obsolete imported_fileset and reexport_map

* Still need any and fix JavaScriptTest.sh

* Fix test runs out of the box

* Temp add generated files

* TypeScriptTest replaces JavaScriptTest and cleanups

* Also remove reference to JavaScriptTest in TestAll.sh

* Remove old generated ts/js files

* Remove use of --js in generate_code scripts

* idl_gen_js_ts to idl_gen_ts and removal of js gen

* Remove obsoleted options

* Fix obsolete ts test detection

* Tweak ts compilation be as strict as possible

* Remove jsdoc type annotation generation

* Generated test ts files

* Fix search and replace messup

* Regenerated ts test output

* Use CharToLower

* Use normal for loop

* Rework namespacedir

* Revert "Rework namespacedir"

This reverts commit 6f4eb0104ceeb86011bb076ebca901138c48e068.

* Revert "Use normal for loop"

This reverts commit 676b2135bfaa1853dfbb06c92b5c16a0d81bb13a.

* Revert "Use CharToLower"

This reverts commit 2d08648d0d72d0af201fad80d54cdc76412b35e9.

* Again do rework but correct

* Avoid runtime cast

* Fix test runs

* Also add npm install to get tsc

* Bump node test versions

* for range to std for loop

* Clang format

* Missed one clang format

* Move accessor to later

* Attempt to make windows version of TypeScriptTest

* Want to see the output

* Try to get newer node at appveyor

* Style changes
2021-01-19 12:51:13 -08:00
Vladimir Glavnyy
75c859e98f [idl_parser] Improve symbols lookup thru parent namespaces (#6407)
Added the new method LookupTableByName for searching symbols in parent namespaces.
This method speedup (x50 or greater) symbol resolution (enum or struct) in parent namespaces.
The speedup was measured without `table.empty()` guard condition.

This method should suppress fuzzer timeout issue without artificial limits for nested namespaces (https://oss-fuzz.com/testcase-detail/6244168439169024).

Additionally, this commit speedup (x5) the GetFullyQualifiedName method by removing unnecessary temporary std::string object.
2021-01-19 12:49:24 -08:00
brian-brt
39e115fdb4 Define Vector::value_type for STL compatibility (#6394)
Specifically, this lets the googlemock container matchers work with a
flatbuffers::Vector.

https://github.com/google/googletest/blob/master/googlemock/docs/cheat_sheet.md#container-matchers
2021-01-08 11:35:55 -08:00
Vladimir Glavnyy
82836a62be [idl_parser] Improve stack overflow protection (#6364)
* [idl_parser] Improve stack overflow protection

Add stack overflow protection for Flexbuffer and nested Flatbuffer parsers.
Replaces the `Recurse()` method by the new ParseDepthGuard RAII class.

* Remove move operator from Parser.

It was wrong decision to add move ctor and assignment into Parser class.
These operators will make it extremely difficult to add constant or reference fields in the future.

* Remove ';' from definition of FLATBUFFERS_DELETE_FUNC

* Format code

* Make this PR compatible with MSVC2010 (it doesn't support inherited ctor)
2021-01-04 12:39:12 -08:00
tira-misu
9fca5e4f42 Add flatc option to inhibit all warnings #6005 (#6301)
* Fix C/C++ Create<Type>Direct with sorted vectors

If a struct has a key the vector has to be sorted. To sort the vector
you can't use "const".

* Changes due to code review

* Improve code readability

* Add generate of JSON schema to string to lib

* option indent_step is supported

* Remove unused variables

* Fix break in test

* Fix style to be consistent with rest of the code

* Add option --no-warnings to inhibit all warnings

* Fix order of member initialization

* Add documentation for --no-warnings
2020-12-10 14:03:53 -08:00
Austin Schuh
fd4c1b5ff7 Replace std::string and const char* CreateSharedString with string_view (#6315)
It is useful to be able to call CreateSharedString with a string_view.
A string_view can be implicitly converted from a std::string or a const
char*.  This means if string_view is available, we can use it instead of
both other functions and get all 3.
2020-12-07 11:49:24 -08:00
Vladimir Glavnyy
8d9eae9ac9 [idl_parser] Unify parsing of NaN values read from .fbs and .json files (#6296)
This commit unifies parsing of NaN values read
from .fbs and .json files by converting them to unsigned NaN.
2020-12-07 11:12:58 -08:00
Vladimir Glavnyy
c27bc2d76f [C++] Add ParseJson(), Parser(Parser&&), update fuzzers (#6284)
- add a new method ParseJson to minimize failures during fuzzing
- add default (conditional) move-constructor for Parser
- add a new monster_fuzzer
- switch fuzzers to C++17 and `test/cpp17` generated code
2020-11-23 10:17:44 -08:00
Wouter van Oortmerssen
bc518a5127 Fixed FlexBufferBuilder asserting on duplicate keys 2020-11-23 09:02:40 -08:00
Austin Schuh
e58c182443 Add --require-explicit-ids to require explicit ids (#6277)
* Add --require-explicit-ids to require explicit ids

We just got bit by a well intentioned developer forgetting that field
order by default is the field index.  3 people missed it in review.

I'm looking at ways to make it harder to mess up.  We are requesting
that developers explicitly id all fields in tables.  Automatic (opt in
for others) enforcement of this will help the effort succeed.  This
patch adds a command line flag which lets the user require ids on all
fields in tables.

* Added docs to Compiler.md as well
2020-11-19 17:16:45 -08:00
OptoCloud
aae376e9a8 Add GetBufferSpan() function to bufferbuilder (#6235)
This will return the finished internal buffer data as a span
2020-11-05 18:09:01 -08:00
Vladimir Glavnyy
84809be7e7 Fix typo in flatbuffers::span declaration. (#6202) 2020-10-22 14:07:29 -07:00
Casper
8f6fa4b715 Updated SupportsAdvancedUnionFeatures to look out for string (#6190)
Co-authored-by: Casper Neo <cneo@google.com>
2020-10-19 13:16:00 -07:00
tira-misu
5cd7137103 Add generation of JSON Schema to library (#6165)
* Fix C/C++ Create<Type>Direct with sorted vectors

If a struct has a key the vector has to be sorted. To sort the vector
you can't use "const".

* Changes due to code review

* Improve code readability

* Add generate of JSON schema to string to lib

* option indent_step is supported

* Remove unused variables

* Fix break in test

* Fix style to be consistent with rest of the code
2020-10-15 15:28:25 -07:00
astange
4ec5e8db90 [C++] Add option to not generate direct copy methods. (#6166)
* Add option to not generate direct copy methods.

The direct copy methods generated by flatc utilize std::vector which isn't allowed on some embedded systems. Permit users of the compiler to not generate these methods so they don't have to be stubbed out.

* Update docs for no-cpp-direct-copy option.
2020-10-12 12:25:10 -07:00
Vladimir Glavnyy
04bec23a37 Add Array initialization from struct constructor (#5865) (#6147)
- add flatbuffers::span
- add new constructor for `struct` with `array`
- add some test for flatbuffers::span and 'arrays_test.fbs'
2020-10-12 12:24:18 -07:00
astange
77d57fd075 Cast to right type for reserved_ subtraction (#6167)
reserved_ is a size_t so ensure that the output of cur_ - buf_ is cast to that to avoid compiler warnings.
2020-10-12 09:14:45 -07:00
Anass Al
cb971eece8 [C++] Fix -Wnarrowing and -Woverflow due to signed bitfields on G++ ARM (#6163)
Older versions of GCC (at least on ARM) complain about narrowing conversions and
overflows when setting the reference index (defined as an 11-bit signed integer
bitfield) to -1:

```
error: narrowing conversion of '-1' from 'int' to 'short unsigned int' inside { } [-Wnarrowing]
error: conversion from 'short unsigned int' to 'short unsigned int:11' changes value from '65535' to '2047'
```

This is due to the signedness of integer bitfields (not explicitly signed or
unsigned) being implementation-defined. This addresses this issue by explicitly
defining the signedness of all the bitfields in `flatbuffers::TypeCode` in C++.
2020-10-08 08:00:40 -07:00
mustiikhalil
7b9e61fccf [TS] GRPC Implementation (#6141)
* GRPC implementation for Typescript

* Fixes a couple of issues

* Finished implementing the typescript support for grpc

* Updated generated code

* Fixes CI
2020-10-07 09:56:30 -07:00
Stefan F
ab01ae1620 flatc should output a warning, when an attribute is attached more than once (#6146)
* Added missing EndTable() call to VerifyObject()

VerifyObject called VerifyTableStart() but not EndTable(). This made Verifier::VerifyComplexity() increase depth_ with each table, not with the depth of tables.

https://groups.google.com/forum/#!topic/flatbuffers/OpxtW5UFAdg

* Added Check to VerifyAlignment

https://stackoverflow.com/questions/59376308/flatbuffers-verifier-returns-false-without-any-assertion-flatbuffers-debug-veri

* Add GetStringView (Convenience function to get string_view from a String returning an empty string_view on null pointer) like GetString, GetCstring

* flatc should warn, when an attribute is attached more than once.

flatc.exe -b duplicate.fbs
warning: duplicate.fbs(5, 36): warning: attribute already found: priority

duplicate.fbs:

namespace MyGame;

attribute "priority";

table Monster (priority:1, priority:2) {
}

root_type Monster;
2020-09-28 09:28:47 -07:00
Nat Jeffries
dca12522a9 Add static cast to avoid implicit double promotion. (#6132)
Add static cast from float to double in flexbuffers.h to avoid implicit double promotion error. This error is surfacing during the tensorflow lite for microcontrollers build since we enabled -Werror and -Wdouble-promotion.
2020-09-24 09:35:29 -07:00
Mark Nauwelaerts
34d67b425e Minireflect fixed array (#6129)
* CMakeLists: also really generate optional_scalars as needed by test elsewhere

* [C++] Handle fixed-length array in minireflection

Fixes #6128
2020-09-22 17:57:01 -07:00
Vladimir Glavnyy
fb4e1c34f9 Add CharToLower and CharToUpper into util.s (#6126)
This commit adds replacement of `::tolower` and `::toupper`.
Added CharToLower and CharToUpper routines reduce the number of cast operators
that required for correct usage of standard C/C++ `::tolower/toupper` routines.
2020-09-21 09:31:27 -07:00
Vladimir Glavnyy
8c67b5b129 Add support of Optional<T> scalars to C++ code generator (#6092) 2020-09-18 12:51:17 -07:00
Paulo Pinheiro
6228b66d3d [Kotlin] Support for optional scalars. (#6115)
More information on #6014
2020-09-17 23:31:51 -07:00
Casper
c75ae24293 Optional-ness in reflection (#6097)
* Optional scalars in reflection

* fixed name collision

* Remove code duplicated by merge

Co-authored-by: Casper Neo <cneo@google.com>
2020-09-11 14:20:32 -07:00
Casper
338944d3d9 Rename Nullable scalars to Optional scalars (#6112)
Co-authored-by: Casper Neo <cneo@google.com>
2020-09-10 13:04:36 -07:00
Ruslan Burakov
f5ab24bc41 Avoid memcpy call for empty vectors (#6111)
Co-authored-by: kuddai <kuddai92@gmail.com>
2020-09-10 13:03:15 -07:00
Navin Mohan
bb25956f09 Wrap verify file id condition in Check call (#6085)
Run clang-format

Update testcase
2020-08-31 11:32:13 -07:00
Yoon Kyong Sik
e86d5b8e97 [Kotlin] Attach JvmStatic annotation to each method in companion object (#6052)
* Attach JvmStatic annotation to each method of companion object

Kotlin does not have static accessor so companion object used instead of static.
It's so natural. But when use kotlin companion object methods on java it is very inconvenient.
```java
GeneratedClassByFlatBuffer.Companion.someMethod()
```

If use @JvmStatic annotation it can be shorten like below.
```java
GeneratedClassByFlatBuffer.someMethod()
```

* Formatting by Idea Google C++ style

* Add comments - Commit for missing cla

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Add comments - Commit for missing cla

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Reset code formatting except modified lines

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Pass missing flag to validateVersion method

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Add annotations to missing method in companion object

* addVector
* createVector
* endVector
* tableCreator

And also I tried add compiler option for generate annotation who don't like this operation.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Modify unmatched option name in compiler usage

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Add missing operation for finishSizePrefixed and finishStructBuffer method.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Add compiled example with --kotlin-gen-jvmstatic option.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Fix Compiler.md

Change option name from --gen-jvm-static-annotation to --kotlin-gen-jvmstatic

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Use IDLOptions reference instead of bool parameter.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Change option name - kotlin_gen_jvmstatic to gen_jvmstatic

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Use IDLOptions reference instead of bool parameter and missing process @JvmStatic as suffix.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Add code generation for --gen-jvmstatic option

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Miss typo directory for including.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Miss typo variable suffix for including.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Fix camel case to snake case.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Rollback generate code for gen_jvmstatic option.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Delete generated test files.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* add missing new line at end of file.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

* Remove generated test file by command line.

Signed-off-by: Yoon KyongSik <sam1287@gmail.com>

Co-authored-by: sam <sam@jennifersoft.com>
2020-08-18 09:44:43 -07:00
jdess
82fac326c5 [C++] Fix compiler error from deleted assignment operator (#6036) (#6047)
* [C++] Fix compiler error from deleted assignment operator (#6036)

The assignment operator of the `buf_` member is deleted, we cannot call it from the assignment operator of the `TableKeyComparator` struct.

=> Also delete the assignment operator of the `TableKeyComparator` struct (already private anyhow).

* [C++] Fix compiler error from deleted assignment operator (#6036) - fix extraneous semicolon

The assignment operator of the `buf_` member is deleted, we cannot call it from the assignment operator of the `TableKeyComparator` struct.

=> Also delete the assignment operator of the `TableKeyComparator` struct (already private anyhow).
2020-07-24 10:35:27 -07:00
Casper
9ecd2e16c2 Flatc parser support for nullable scalars (#6026)
* Parser support for nullable scalars

* Use older C++ features

* use default element

* Add a test for json, flexbuffers, and null

* test comments and names

Co-authored-by: Casper Neo <cneo@google.com>
2020-07-16 13:43:47 -07:00
Vasyl Gello
515a4052a7 Silence false positive "-Wstringop-overflow" on GCC 10.0 to 11.0 (#6020) 2020-07-06 08:38:06 -07:00
mjvankampen
7571b2ac56 [C++] Updates real_path to be truly portable (#5787)
* Removes posix definition

stat and fseeko are not used. Tested on QNX (GCC 5.4.0) and MinGw

* Updates realpath to more modern (2008) version

* Removes unix specific headers

* Adds detection of strtoll_l as android API < 21 does not provide it

* Includes cstdlib and formatting

Removes cmakelist alterations as not necessary. Formatting not complete.

* Stdlib outside if

Stdlib is available on all platforms

* Fixes indentation

* Adds locale check to android build

* Adds missing brace

* full names

* Removes again, no clue

* Updates base to check for locale independent android

Cmake already checks for others, also MSC?

* Changes to test on available and not requested

* Fixes android bad xopen_version define

* Removes warning
2020-06-25 14:40:10 -07:00