[MacPorts] #68141: zstdConfig.cmake does not build with gcc-4.2

[MacPorts]

#68141: zstdConfig.cmake does not build with gcc-4.2
-------------------------------+---------------------------------
  Reporter:  barracuda156      |      Owner:  MarcusCalhoun-Lopez
      Type:  defect            |     Status:  assigned
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.8.1
Resolution:                    |   Keywords:
      Port:  zstdConfig.cmake  |
-------------------------------+---------------------------------

Comment (by barracuda156):

 Blacklisting `*gcc-4.0 *gcc-4.2` fixes the build, however `clang` gets
 picked, which should not be the case on Rosetta (or any `ppc`):
 {{{
 --->  Configuring zstdConfig.cmake
 Executing:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_archivers_zstd/zstdConfig.cmake/work/build"
 && /opt/local/bin/cmake -G "CodeBlocks - Unix Makefiles"
 -DCMAKE_BUILD_TYPE=MacPorts -DCMAKE_INSTALL_PREFIX="/opt/local"
 -DCMAKE_INSTALL_NAME_DIR="/opt/local/lib"
 -DCMAKE_SYSTEM_PREFIX_PATH="/opt/local;/usr" -DCMAKE_C_COMPILER="$CC"
 -DCMAKE_CXX_COMPILER="$CXX" -DCMAKE_OBJC_COMPILER="$CC"
 -DCMAKE_OBJCXX_COMPILER="$CXX" -DCMAKE_POLICY_DEFAULT_CMP0025=NEW
 -DCMAKE_POLICY_DEFAULT_CMP0060=NEW -DCMAKE_VERBOSE_MAKEFILE=ON
 -DCMAKE_COLOR_MAKEFILE=ON -DCMAKE_FIND_FRAMEWORK=LAST
 -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_MAKE_PROGRAM=/usr/bin/make
 -DCMAKE_MODULE_PATH="/opt/local/share/cmake/Modules"
 -DCMAKE_PREFIX_PATH="/opt/local/share/cmake/Modules"
 -DCMAKE_BUILD_WITH_INSTALL_RPATH:BOOL=ON
 -DCMAKE_INSTALL_RPATH="/opt/local/lib" -Wno-dev
 -DCMAKE_OSX_ARCHITECTURES="" -DCMAKE_OSX_DEPLOYMENT_TARGET="10.6"
 -DCMAKE_OSX_SYSROOT="/"
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_archivers_zstd/zstdConfig.cmake/work/zstd-1.5.5/build/cmake
 -- The C compiler identification is Clang 1.7.0
 -- The ASM compiler identification is Clang with GNU-like command-line
 -- Found assembler: /Developer/usr/bin/clang
 -- The CXX compiler identification is GNU 4.2.1
 -- Detecting C compiler ABI info
 -- Detecting C compiler ABI info - done
 -- Check for working C compiler: /usr/bin/clang - skipped
 -- Detecting C compile features
 -- Detecting C compile features - done
 -- Checking whether CXX compiler has -isysroot
 -- Checking whether CXX compiler has -isysroot - yes
 -- Checking whether CXX compiler supports OSX deployment target flag
 -- Checking whether CXX compiler supports OSX deployment target flag - yes
 -- Detecting CXX compiler ABI info
 -- Detecting CXX compiler ABI info - done
 -- Check for working CXX compiler: /usr/bin/llvm-g++-4.2 - skipped
 -- Detecting CXX compile features
 -- Detecting CXX compile features - done
 -- ZSTD VERSION: 1.5.5
 -- Performing Test C_FLAG_WALL
 -- Performing Test C_FLAG_WALL - Success
 -- Performing Test CXX_FLAG_WALL
 -- Performing Test CXX_FLAG_WALL - Success
 -- Performing Test C_FLAG_WEXTRA
 -- Performing Test C_FLAG_WEXTRA - Success
 -- Performing Test CXX_FLAG_WEXTRA
 -- Performing Test CXX_FLAG_WEXTRA - Success
 -- Performing Test C_FLAG_WUNDEF
 -- Performing Test C_FLAG_WUNDEF - Success
 -- Performing Test CXX_FLAG_WUNDEF
 -- Performing Test CXX_FLAG_WUNDEF - Success
 -- Performing Test C_FLAG_WSHADOW
 -- Performing Test C_FLAG_WSHADOW - Success
 -- Performing Test CXX_FLAG_WSHADOW
 -- Performing Test CXX_FLAG_WSHADOW - Success
 -- Performing Test C_FLAG_WCAST_ALIGN
 -- Performing Test C_FLAG_WCAST_ALIGN - Success
 -- Performing Test CXX_FLAG_WCAST_ALIGN
 -- Performing Test CXX_FLAG_WCAST_ALIGN - Success
 -- Performing Test C_FLAG_WCAST_QUAL
 -- Performing Test C_FLAG_WCAST_QUAL - Success
 -- Performing Test CXX_FLAG_WCAST_QUAL
 -- Performing Test CXX_FLAG_WCAST_QUAL - Success
 -- Performing Test C_FLAG_WSTRICT_PROTOTYPES
 -- Performing Test C_FLAG_WSTRICT_PROTOTYPES - Success
 -- Performing Test LD_FLAG_Z_NOEXECSTACK
 -- Performing Test LD_FLAG_Z_NOEXECSTACK - Failed
 -- Performing Test C_FLAG_QUNUSED_ARGUMENTS
 -- Performing Test C_FLAG_QUNUSED_ARGUMENTS - Success
 -- Performing Test CXX_FLAG_QUNUSED_ARGUMENTS
 -- Performing Test CXX_FLAG_QUNUSED_ARGUMENTS - Success
 -- Performing Test C_FLAG_WA_NOEXECSTACK
 -- Performing Test C_FLAG_WA_NOEXECSTACK - Failed
 -- Performing Test CXX_FLAG_WA_NOEXECSTACK
 -- Performing Test CXX_FLAG_WA_NOEXECSTACK - Failed
 -- CMAKE_INSTALL_PREFIX: /opt/local
 -- CMAKE_INSTALL_LIBDIR: lib
 -- ZSTD_LEGACY_SUPPORT defined!
 -- ZSTD_MULTITHREAD_SUPPORT is enabled
 -- Performing Test CMAKE_HAVE_LIBC_PTHREAD
 -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
 -- Found Threads: TRUE
 -- Configuring done (27.1s)
 -- Generating done (0.7s)
 CMake Warning:
   Manually-specified variables were not used by the project:

     CMAKE_OBJCXX_COMPILER
     CMAKE_OBJC_COMPILER
 }}}
 This is the rare case where it does not break the build, at least on
 Rosetta. Cannot test native PPC at the moment, no access to hardware.

-- 
Ticket URL: <https://trac.macports.org/ticket/68141#comment:2>
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