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documentation: multilib build flag is documented

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Laszlo Nagy
2021-11-14 11:51:23 +11:00
parent 2cf4f632d9
commit 00d313f1fe
1 changed files with 13 additions and 3 deletions
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16
INSTALL.md
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@@ -39,14 +39,25 @@ Ideally, you should build Bear in a separate build directory.
make install
You can configure the build process with passing arguments to cmake.
One of the flags you might want to pay attention is the `CMAKE_INSTALL_LIBDIR`
flag, which has to be the directory name for libraries. (The value of this
flag, which has to be the directory name for libraries. The value of this
varies for different distribution: debian derivatives are using
`lib/i386-linux-gnu` and `lib/x86_64-linux-gnu`, while many other distributions
are simple `lib` and `lib64` directories.) Passing the flag looks like this:
are simple `lib` and `lib64` directories. Check out where the system `libc.so`
is. And use that directory name for the `CMAKE_INSTALL_LIBDIR`. (If your system
has it as `/lib/x86_64-linux-gnu/libc.so`, then `lib/x86_64-linux-gnu` is the
value you need to use.) Passing the flag looks like this:
cmake -DCMAKE_INSTALL_LIBDIR=lib/x86_64-linux-gnu ... $BEAR_SOURCE_DIR
To enable multilib support, an extra CMake flag is needed. `ENABLE_MULTILIB`
is defined by this project and will change where Bear looks for files. To use
multilib, you need to make the `CMAKE_INSTALL_LIBDIR` set right. (See the
paragraph above.) Passing the flag looks like this:
cmake -DENABLE_MULTILIB=ON ... $BEAR_SOURCE_DIR
To run test during the build process, you will need to install the
test frameworks and re-configure the build. For unit testing Bear
uses googletest, which will be built from source if not already installed.
@@ -98,4 +109,3 @@ If OpenSSL is installed via Brew, and it's keg-only, run the following (before t
build) for pkg-config to find it as grpc's dependency:
export PKG_CONFIG_PATH=$(brew --prefix)/opt/openssl@1.1/lib/pkgconfig