BoringSSL

build boringssl

$HOME/src is where I put the code in this example. You can pick wherever youlike.

$ cd $HOME/src$ git clone https://boringssl.googlesource.com/boringssl$ cd boringssl$ mkdir build$ cd build$ cmake -DCMAKE_POSITION_INDEPENDENT_CODE=on ..$ make

set up the build tree to get detected by curl's configure

In the boringssl source tree root, make sure there is alib and anincludedir. Thelib directory should contain the two libs (I made them symlinksinto the build dir). Theinclude directory is already present bydefault. Make and populatelib like this (commands issued in the source treeroot, not in thebuild/ subdirectory).

$ mkdir lib$ cd lib$ ln -s ../build/ssl/libssl.a$ ln -s ../build/crypto/libcrypto.a

configure curl

LIBS=-lpthread ./configure --with-ssl=$HOME/src/boringssl (where I point outthe root of the boringssl tree)

Verify that at the end of the configuration, it says it detectedBoringSSL to be used.

build curl

Runmake in the curl source tree.

Now you can install curl normally withmake install etc.