THIS MESSAGE IS ALSO POSTED ON StackOverflow
<https://stackoverflow.com/questions/47508243/curl-build-doesnt-recognize-zlib-and-openssl-when-specifying-install-directorie>
I'm trying to build Curl with support for: OpenSSL, ZLIB and NGHTTP2. Note that
I'm building from Ubuntu to Windows (32-bit) host: i686-w64-mingw32.
The structure I have is the following: /opt/mingw64/Win32 which includes the
following subdirectories:
<https://i.stack.imgur.com/sKwlA.png>
When I try to build curl using the following commands:
wget https://curl.haxx.se/download/curl-7.56.1.tar.gz
tar xf curl-7.56.1.tar.gz
cd curl-7.56.1/
CPPFLAGS="-I/opt/mingw64/Win32/openssl/include
-I/opt/mingw64/Win32/zlib/include -I/opt/mingw64/Win32/nghttp2/include"
LDFLAGS="-L/opt/mingw64/Win32/openssl/lib -L/opt/mingw64/Win32/zlib/lib
-L/opt/mingw64/Win32/nghttp2/lib"
LIBS="-lssl -lcrypto -lz -nghttp2"
./configure --host=i686-w64-mingw32 --prefix=/opt/mingw64/Win32/curl --with-ssl
--with-zlib=/opt/mingw64/Win32/zlib/include
--with-nghttp2=/opt/mingw64/Win32/zlib --disable-ldap --disable-ldaps
it comes back with the configuration menu which shows me that ZLIB and nghttp2
are not enabled. Besides that I also doubt wether curl is linked to the right
openssl library that I specified in the /opt/mingw64/Win32/openssl directory.
The overview:
curl version: 7.56.1
Host setup: i686-w64-mingw32
Install prefix: /opt/mingw64/Win32/curl
Compiler: i686-w64-mingw32-gcc
SSL support: enabled (OpenSSL)
SSH support: no (--with-libssh2)
zlib support: no (--with-zlib)
GSS-API support: no (--with-gssapi)
TLS-SRP support: enabled
resolver: POSIX threaded
IPv6 support: enabled
Unix sockets support: no (--enable-unix-sockets)
IDN support: no (--with-{libidn2,winidn})
Build libcurl: Shared=yes, Static=yes
Built-in manual: enabled
--libcurl option: enabled (--disable-libcurl-option)
Verbose errors: enabled (--disable-verbose)
SSPI support: no (--enable-sspi)
ca cert bundle: no
ca cert path: no
ca fallback: no
LDAP support: enabled (winldap)
LDAPS support: enabled
RTSP support: enabled
RTMP support: no (--with-librtmp)
metalink support: no (--with-libmetalink)
PSL support: no (libpsl not found)
HTTP2 support: disabled (--with-nghttp2)
Protocols: DICT FILE FTP FTPS GOPHER HTTP HTTPS IMAP IMAPS LDAP LDAPS
POP3 POP3S RTSP SMB SMBS SMTP SMTPS TELNET TFTP
Why can't it find the nghttp2 and zlib library while I specify with the install
directories (I think it takes the default library for my Ubuntu environment)?
Following are build commands in order to validate if required:
I have built ZLIB with the following code:
wget https://zlib.net/zlib-1.2.11.tar.xz
tar xf zlib-1.2.11.tar.xz
cd zlib-1.2.11
./configure --prefix=/opt/mingw64/Win32/zlib
make
make install
The command to build OpenSSL:
wget https://www.openssl.org/source/openssl-1.1.0g.tar.gz
tar -xvzf openssl-1.1.0g.tar.gz
cd openssl-1.1.0g/
./Configure mingw shared --cross-compile-prefix=i686-w64-mingw32-
--prefix=/opt/mingw64/Win32/openssl
make
make install
The command to build nghttp2:
wget
https://github.com/nghttp2/nghttp2/releases/download/v1.28.0/nghttp2-1.28.0.tar.gz
tar xf nghttp2-1.28.0.tar.gz
cd nghttp2-1.28.0/
./configure --host=i686-w64-mingw32 --prefix=/opt/mingw64/Win32/nghttp2
OPENSSL_CFLAGS="/I/opt/mingw64/Win32/openssl/include"
OPENSSL_LIBS="-L/opt/mingw64/Win32/openssl/lib -lssl -lcrypto"
make
make install
Kind regards,
Thomas-------------------------------------------------------------------
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