OpenSSL is being deprecated on Mac OS X

[thommey]

Trac	Data
Ticket	99
Reported by	pseudo
Status	new
Component	Build process
Priority	major
Milestone	1.8.0
Keywords	ssl warnings
Version	1.8.0 CVS

In Mac OS X 10.7 Lion Apple deprecates the use of OpenSSL. You can see deprecation messages when compiling:

tls.c:125: warning: ‘SSL_load_error_strings’ is deprecated (declared at /usr/include/openssl/ssl.h:1416)
tls.c:126: warning: ‘SSL_library_init’ is deprecated (declared at /usr/include/openssl/ssl.h:1553)
tls.c:130: warning: ‘ERR_free_strings’ is deprecated (declared at /usr/include/openssl/err.h:297)
tls.c:135: warning: ‘SSL_CTX_new’ is deprecated (declared at /usr/include/openssl/ssl.h:1346)

Possible workaround is to use the Common Crypto implementation, which should be API compatible.

[https://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man3/Common%20Crypto.3cc.html]

[thommey]

Maybe ship mbedtls for 2.0.0 (where we need it anyway), not going to write a compatibility layer for those os x functions

[michaelortmann]

Why not add instructions to compile and link openssl (unter osx) to COMPILE-GUIDE?
Maybe link it static.
--with-sslinc and --with-sslib should work, now that the following commit was done:
b4cb713

BTW: If anyone could give me a temp shell account on an OS X machine, i could try to check and enhance OS X support.

[michaelortmann]

There is a solution / workaround:

Under 64-bit macOS Catalina 10.15.7 Darwin 19.6.0 clang 12.0.0 Tcl 8.5.9 OpenSSL 1.1.1g

One can install openssl via homebrew and it will work just fine.

This is already documented in out doc/COMPILE-GUIDE:

eggdrop/doc/COMPILE-GUIDE

Lines 216 to 224 in c8e4eef

	Install OpenSSL using homebrew:
	Install homebrew from https://brew.sh/
	brew update
	brew install openssl
	Tell configure where to find tcl and openssl:
	./configure --with-tcl=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/System/Library/Frameworks/Tcl.framework/tclConfig.sh --with-sslinc=/usr/local/opt/openssl/include --with-ssllib=/usr/local/opt/openssl/lib

Compiles without any warning:

gcc -g -O2 -pipe -Wall -I.. -I.. -I/usr/local/opt/openssl/include -DHAVE_CONFIG_H -iwithsysroot /System/Library/Frameworks/Tcl.framework/Versions/8.5/Headers -DSTATIC -c tls.c

if you agree, please close this Issue.