fluidsynth needs C++11

[barracuda156]

--->  Configuring fluidsynth
Executing:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_multimedia_fluidsynth/fluidsynth/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 -Denable-jack=OFF -Denable-dbus=OFF -Denable-pulseaudio=OFF -Denable-framework=OFF -DLIB_SUFFIX="" -DCMAKE_DISABLE_FIND_PACKAGE_Doxygen=ON -DCMAKE_DISABLE_FIND_PACKAGE_OpenMP=ON -DDEFAULT_SOUNDFONT=/opt/local/share/sounds/sf2/GeneralUser_GS_v1.471.sf2 -DCMAKE_OSX_ARCHITECTURES="ppc" -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_multimedia_fluidsynth/fluidsynth/work/fluidsynth-2.3.4 
-- The C compiler identification is GNU 4.2.1
-- The CXX compiler identification is GNU 4.2.1
-- Checking whether C compiler has -isysroot
-- Checking whether C compiler has -isysroot - yes
-- Checking whether C compiler supports OSX deployment target flag
-- Checking whether C compiler supports OSX deployment target flag - yes
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/gcc-4.2 - 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/g++-4.2 - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Checking whether system has ANSI C header files
-- Looking for 8 include files dlfcn.h, ..., float.h
-- Looking for 8 include files dlfcn.h, ..., float.h - found
-- Performing Test memchrExists
-- Performing Test memchrExists - Success
-- Performing Test freeExists
-- Performing Test freeExists - Success
-- ANSI C header files - found
-- Looking for include file unistd.h
-- Looking for include file unistd.h - found
-- Looking for DIR in sys/stat.h;sys/types.h;dirent.h
-- Looking for DIR in sys/stat.h;sys/types.h;dirent.h - found
-- Looking for stdio.h
-- Looking for stdio.h - found
-- Looking for math.h
-- Looking for math.h - found
-- Looking for errno.h
-- Looking for errno.h - found
-- Looking for stdarg.h
-- Looking for stdarg.h - found
-- Looking for sys/mman.h
-- Looking for sys/mman.h - found
-- Looking for sys/time.h
-- Looking for sys/time.h - found
-- Looking for fcntl.h
-- Looking for fcntl.h - found
-- Looking for sys/socket.h
-- Looking for sys/socket.h - found
-- Looking for netinet/in.h
-- Looking for netinet/in.h - found
-- Looking for netinet/tcp.h
-- Looking for netinet/tcp.h - found
-- Looking for arpa/inet.h
-- Looking for arpa/inet.h - found
-- Looking for limits.h
-- Looking for limits.h - found
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for signal.h
-- Looking for signal.h - found
-- Looking for getopt.h
-- Looking for getopt.h - found
-- Check size of long long
-- Check size of long long - done
-- Performing Test _have_inline
-- Performing Test _have_inline - Success
-- Performing Test _have_vla
-- Performing Test _have_vla - Success
-- Performing Test HAVE_INCOMPATIBLE_POINTER_TYPES
-- Performing Test HAVE_INCOMPATIBLE_POINTER_TYPES - Failed
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- Looking for CoreAudio/AudioHardware.h
-- Looking for CoreAudio/AudioHardware.h - found
-- Looking for CoreMIDI/MIDIServices.h
-- Looking for CoreMIDI/MIDIServices.h - found
-- Found GLib2: /opt/local/lib/libglib-2.0.dylib (found suitable version "2.78.0", minimum required is "2.6.5") 
-- Found SndFile: /opt/local/lib/libsndfile.dylib (found suitable version "1.2.2", minimum required is "1.0.0") 
-- Could NOT find PipeWire (missing: PipeWire_LIBRARY PipeWire_INCLUDE_DIR Spa_INCLUDE_DIR) (Required is at least version "0.3")
-- Looking for ladspa.h
-- Looking for ladspa.h - not found
-- Could NOT find InstPatch (missing: InstPatch_LIBRARY InstPatch_INCLUDE_DIR) (Required is at least version "1.1.0")
-- Found SDL2: SDL2::SDL2 (version: 2.28.2)
-- Found Readline: /opt/local/lib/libreadline.dylib (found version "8.2") 
-- Looking for sys/soundcard.h
-- Looking for sys/soundcard.h - not found
-- Looking for linux/soundcard.h
-- Looking for linux/soundcard.h - not found
-- Looking for machine/soundcard.h
-- Looking for machine/soundcard.h - not found
-- Looking for sinf
-- Looking for sinf - found
-- Looking for cosf
-- Looking for cosf - found
-- Looking for fabsf
-- Looking for fabsf - found
-- Looking for powf
-- Looking for powf - found
-- Looking for sqrtf
-- Looking for sqrtf - found
-- Looking for logf
-- Looking for logf - found
-- Looking for inet_ntop
-- Looking for inet_ntop - found
-- Check size of socklen_t
-- Check size of socklen_t - done
CMake Error at cmake_admin/FluidUnitTest.cmake:92 (target_compile_features):
  target_compile_features The compiler feature "cxx_std_11" is not known to
  CXX compiler

  "GNU"

  version 4.2.1.

16. S. Didn’t we fix it earlier?

[barracuda156]

In a3ccf2b546ff6380dabb9e1aaf375a9c6d025475/macports-ports (master):

fluidsynth: set C++11 standard

Fixes: #68458