[MacPorts] #54519: py27-cryptography @2.0 does not build on PPC Mac OS X 10.4.11, Tiger, because of missing GCC 4.2 option?

[MacPorts]

#54519: py27-cryptography @2.0 does not build on PPC Mac OS X 10.4.11, Tiger,
because of missing GCC 4.2 option?
-----------------------+-------------------------------
 Reporter:  ballapete  |      Owner:
     Type:  defect     |     Status:  new
 Priority:  Normal     |  Milestone:
Component:  ports      |    Version:  2.4.1
 Keywords:  tiger      |       Port:  py27-cryptography
-----------------------+-------------------------------
 {{{
 building '_openssl' extension
 creating build/temp.macosx-10.4-ppc-2.7/build
 creating build/temp.macosx-10.4-ppc-2.7/build/temp.macosx-10.4-ppc-2.7
 /opt/local/bin/gcc-apple-4.2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-
 prototypes -arch ppc
 -I/opt/local/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7
 -c build/temp.macosx-10.4-ppc-2.7/_openssl.c -o
 build/temp.macosx-10.4-ppc-2.7/build/temp.macosx-10.4-ppc-2.7/_openssl.o
 -Wconversion -Wno-error=sign-conversion
 cc1: error: -Werror=sign-conversion: No option -Wsign-conversion
 error: command '/opt/local/bin/gcc-apple-4.2' failed with exit status 1
 Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_lil.fr.rsync.macports
 .org_release_tarballs_ports_python_py-
 cryptography/py27-cryptography/work/cryptography-2.0" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
 setup.py --no-user-cfg build
 Exit code: 1
 }}}

 The faulty setting is obviously in

 {{{
 ./src/_cffi_src/build_openssl.py:        return ["-Wconversion", "-Wno-
 error=sign-conversion"]
 }}}

 in a code block

 {{{
     if platform != "win32":
         return ["-Wconversion", "-Wno-error=sign-conversion"]
     else:
         return []
 }}}

 Removing the second argument produces some unnecessary output

 {{{
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 'Cryptography_pem_password_cb':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:2568: warning: passing argument
 3 of 'memcpy' as unsigned due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_d_SSL_CTX_clear_options':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:47473: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_f_SSL_CTX_clear_options':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:47506: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_d_SSL_CTX_set_mode':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:49314: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_f_SSL_CTX_set_mode':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:49347: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_d_SSL_CTX_set_options':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:49478: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_f_SSL_CTX_set_options':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:49511: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_d_SSL_CTX_set_session_cache_mode':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:49524: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_f_SSL_CTX_set_session_cache_mode':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:49557: warning: passing argument
 3 of 'SSL_CTX_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_d_SSL_set_mode':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:53391: warning: passing argument
 3 of 'SSL_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_f_SSL_set_mode':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:53424: warning: passing argument
 3 of 'SSL_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_d_SSL_set_options':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:53437: warning: passing argument
 3 of 'SSL_ctrl' as signed due to prototype
 build/temp.macosx-10.4-ppc-2.7/_openssl.c: In function
 '_cffi_f_SSL_set_options':
 build/temp.macosx-10.4-ppc-2.7/_openssl.c:53470: warning: passing argument
 3 of 'SSL_ctrl' as signed due to prototype
 }}}

 but lets the port build.

--
Ticket URL: <https://trac.macports.org/ticket/54519>
MacPorts <https://www.macports.org/>
Ports system for macOS