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mdbx: add iOS notes to README.

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Change-Id: Ia46a43376370a73b179dbc4ab65e43956ee8c43a
This commit is contained in:
Leonid Yuriev 2020-04-08 02:05:18 +03:00
parent 469c045aa9
commit 99f07f5054
2 changed files with 14 additions and 1 deletions
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13
README.md
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@ -416,6 +416,19 @@ will need to install the current (not outdated) version of
recommend that you install [Homebrew](https://brew.sh/) and then execute
`brew install bash`.
### iOS
Unfortunately, the current versions of the iPhone SDK are missing few
important system header files, and one of these files is required for
building the library. So you should manually copy at least the `sys/vmmeter.h`
from the OSX SDK or iPhoneSimulator SDK. If this header file is missing,
you will get the corresponding message from the compiler, and near in the
src/elements/osal.h` file there are [examples of how this can be done](src/elements/osal.h#L97-L109).
To build _libmdbx_ for iOS, we recommend using CMake using the
"[toolchain file](https://cmake.org/cmake/help/latest/variable/CMAKE_TOOLCHAIN_FILE.html)"
from the [ios-cmake](https://github.com/leetal/ios-cmake) project.
## API description
For more information and API description see the [mdbx.h](mdbx.h) header.

2
src/elements/osal.h
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@ -91,7 +91,7 @@
#define SYSCTL_LEGACY_NONCONST_MIB
#endif
#if defined(__APPLE__) && !__has_include(<sys/vmmeter.h>)
#warning "Header <sys/vmmeter.h> by default is missing in iOS SDK. " \
#warning "The <sys/vmmeter.h> header is missing in iOS SDK. " \
"Copy it manually from the OSX SDK or iPhoneSimulator SDK. " \
"Don't forget to thank Apple for taking care of you!"
/*** FOR INSTANCE: