How to build openldap with custom libopenssl - c

Question

I need to build libldap under linux (and windows, but that's a different story).
When I do
./configure --prefix="$OPENLDAP_BUILD_PATH" --disable-slapd
make
make install
make clean
I get with ldd that libldap is linked with system libraries libssl.so and libcrypto.so. And what I need is to link it with my custom builds of this libraries.
I also tried this:
OPENLDAP2_BUILD_PATH="$BUILD_PATH/openldap2"
mkdir "$OPENLDAP2_BUILD_PATH"
OPENSSL_DEPENDENCY_PATH="$BUILD_PATH/openssl"
LD_LIBRARY_PATH="$OPENSSL_DEPENDENCY_PATH/lib:$LD_LIBRARY_PATH"
CPPFLAGS="-l$OPENSSL_DEPENDENCY_PATH/include/openssl"
LDFLAGS="-L$OPENSSL_DEPENDENCY_PATH/lib"
./configure --prefix="$OPENLDAP2_BUILD_PATH" --disable-slapd
make
make install
make clean
With no success either.
ldd libldap.so shows this:
linux-vdso.so.1 => (0x00007ffc91923000)
liblber-2.4.so.2 => /home/me/Work-U14/proj/shared/BUILD/openldap2/lib/liblber-2.4.so.2 (0x00007ff0ef638000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007ff0ef3f8000)
libssl.so.1.0.0 => /lib/x86_64-linux-gnu/libssl.so.1.0.0 (0x00007ff0ef198000)
libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007ff0eedbc000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ff0ee9f4000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007ff0ee7ef000)
/lib64/ld-linux-x86-64.so.2 (0x000056386adf5000)

Answer 1

Found that below could work:
export LDFLAGS="-L/your/dir/to/openssl/lib"
export CPPFLAGS="-I/your/dir/to/openssl/include"
./configure ...
could work, the include path is:
-I/your/dir/to/openssl/include NOT
-I/your/dir/to/openssl/include/openssl
which the .h head files are all in the sub openssl dir under include,
the key point is get rid of the openssl dir under include dir, which by default for other packages we have to add this sub-directory under include, e.g. for apr, you have to make it as: -I/your/dir/to/apr/include/apr-1.

Answer 2

It's not a good solution, but a well-enough workaround for me.
I've written build.sh as follows:
#!/bin/sh
if [ -z "$BUILD_PATH" ]
then
echo "Variable BUILD_PATH isn't specified!"
exit
fi
OPENLDAP2_BUILD_PATH="$BUILD_PATH/openldap2"
export MY_OPENSSL_ROOT="$BUILD_PATH/openssl"
./configure --prefix=$OPENLDAP2_BUILD_PATH --disable-slapd >/home/sherst/Desktop/configure_log.openldap2 2>&1
make >/home/sherst/Desktop/make_log.openldap2 2>&1
make install >/home/sherst/Desktop/make_install_log.openldap2 2>&1
I've patched configure file as such:
LINE 15485
LIBS="-Wl,-rpath=$ORIGIN/ -L. -lssl -lcrypto $LIBS"
LINE 15582
TLS_LIBS="-Wl,-rpath=$MY_OPENSSL_ROOT/lib -L$MY_OPENSSL_ROOT/lib -lssl -lcrypto -lRSAglue -lrsaref"
LINE 15584
TLS_LIBS="-Wl,-rpath=$MY_OPENSSL_ROOT/lib -L$MY_OPENSSL_ROOT/lib -lssl -lcrypto"
In such way (I'm quite sure that it's very crude and overabundant) I've achieved that ldd shows links to my openssl libs. TO hard code them is a bad idea, but when, in distro, there will be no such paths, I expect ld to find them in local dir, where we plan to put them.
openldap faq says this should be achieved ain such way:
env CPPFLAGS=-I/path/to/openssl/include \
LDFLAGS=-L/path/to/openssl/lib-dir \
configure --with-tls ...
But that didn't work for me (perhaps, I did it wrong).

Answer 3

I found info how to add rpath here:
https://www.openldap.org/doc/admin24/install.html
Simply pass it to configure script:
/configure --enable-wrappers \
CPPFLAGS="-I/usr/local/include" \
LDFLAGS="-L/usr/local/lib -Wl,-rpath,/usr/local/lib"