curl-http2.txt

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CentOS install notes:
As of this writing, the base version of curl does not include http2 support 
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		!!!! WARNING !!!
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https://wiki.centos.org/AdditionalResources/Repositories

	City-Fan - Supplies repos for various CentOS/RHEL versions and all appear to have no regard for overwriting packages from base/updates
	without warning. Enabled by default, contains lots of packages that overwrite base packages. That includes various system libraries
	including libcurl and will break yum as soon as it's installed! Do not use.

	Be particularly careful about the City-Fan repo as they enable their repo by default when installed. City-Fan will replace
	many core packages as configured when installed and those packages often have a different structure than the CentOS ones
	making them difficult if not impossible to remove cleanly. Even removing packages installed from this repository may leave
	the system in an unusable state. You've been warned.

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Quick install from city-fan.org repo:
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	rpm -Uvh http://www.city-fan.org/ftp/contrib/yum-repo/rhel7/x86_64/city-fan.org-release-2-1.rhel7.noarch.rpm
	yum --enablerepo=city-fan.org install libcurl libcurl-devel

* Remove city-fan.org repo after install:

	yum remove city-fan.org-release-2-1.rhel6.noarch
	yum clean all

	# curl-config --ssl-backends
	NSS

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Install from source (into /opt/curl)
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	yum install libnghttp2-devel libnghttp2 nghttp2 httpd24-libnghttp2-devel httpd24-nghttp2 libtool m4 libev-devel

	git clone https://github.com/curl/curl.git
	cd curl
	git checkout curl-7_68_0
	./buildconf
	./configure --prefix=/opt/curl --without-nss --enable-openssl-auto-load-config --with-nghttp2 --disable-file --with-libssh2 \
                --enable-file --enable-cookies --enable-http-auth --enable-unix-sockets --enable-ftp --enable-proxy --enable-telnet \
                --enable-tftp --enable-smtp --enable-gopher --enable-ipv6 --enable-verbose --enable-mime --enable-dnsshuffle

	make && make install

        # /opt/curl/bin/curl-config --ssl-backends
        OpenSSL