Merge commit '9e48de3cc86c732d9cebd496d6f0a2b7e7732754'

* commit '9e48de3cc86c732d9cebd496d6f0a2b7e7732754':
  configure: Miscellaneous minor changes

Merged-by: James Almer <jamrial@gmail.com>

diff --cc configure
index 934ac3abfd9b3b2842c2df401c7eda9fdc4b1265,be9a3ee5cb6a054efa032d1ae4d1b0c7289cc97f..0fc63cbfca25378c36c489874ed4b005f137fead
--- 1/configure
--- 2/configure
+++ b/configure
@@@ -462,20 -347,6 +462,19 @@@ EO
    exit 0
  }
  
- quotes='""'
 +if test -t 1 && which tput >/dev/null 2>&1; then
 +    ncolors=$(tput colors)
 +    if test -n "$ncolors" && test $ncolors -ge 8; then
 +        bold_color=$(tput bold)
 +        warn_color=$(tput setaf 3)
 +        error_color=$(tput setaf 1)
 +        reset_color=$(tput sgr0)
 +    fi
 +    # 72 used instead of 80 since that's the default of pr
 +    ncols=$(tput cols)
 +fi
 +: ${ncols:=72}
 +
  log(){
      echo "$@" >> $logfile
  }
@@@ -3714,25 -2857,10 +3713,27 @@@ for e in $env; d
      eval "export $e"
  done
  
 +if disabled autodetect; then
 +
 +    # Unless iconv is explicitely disabled by the user, we still want to probe
 +    # for the iconv from the libc.
 +    disabled iconv || enable libc_iconv
 +
 +    disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
 +    disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
 +fi
 +# Mark specifically enabled, but normally autodetected libraries as requested.
 +for lib in $AUTODETECT_LIBS; do
 +    enabled $lib && request $lib
 +done
 +#TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
 +enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
 +enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
 +
  disabled logging && logfile=/dev/null
  
+ # command line configuration sanity checks
+ 
  # we need to build at least one lib type
  if ! enabled_any static shared; then
      cat <<EOF
@@@ -4889,9 -3827,8 +4889,9 @@@ case $target_os i
          ;;
      sunos)
          SHFLAGS='-shared -Wl,-h,$$(@F)'
-         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
+         enabled x86 && append SHFLAGS -mimpure-text
          network_extralibs="-lsocket -lnsl"
 +        add_cppflags -D__EXTENSIONS__
          # When using suncc to build, the Solaris linker will mark
          # an executable with each instruction set encountered by
          # the Solaris assembler.  As our libraries contain their own
@@@ -5754,42 -4550,27 +5754,39 @@@ f
  
  # check for some common methods of building with pthread support
  # do this before the optional library checks as some of them require pthreads
 -if ! disabled pthreads && ! enabled w32threads; then
 -    if check_lib pthreads pthread.h pthread_join -pthread; then
 +if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
 +    if check_lib pthreads pthread.h pthread_join   -pthread &&
 +       check_lib pthreads pthread.h pthread_create -pthread; then
          add_cflags -pthread
 -    elif check_lib pthreads pthread.h pthread_join -pthreads; then
 +    elif check_lib pthreads pthread.h pthread_join   -pthreads &&
 +         check_lib pthreads pthread.h pthread_create -pthreads; then
          add_cflags -pthreads
 -    elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
 +    elif check_lib pthreads pthread.h pthread_join   -ldl -pthread &&
 +         check_lib pthreads pthread.h pthread_create -ldl -pthread; then
 +        add_cflags -ldl -pthread
 +    elif check_lib pthreads pthread.h pthread_join   -lpthreadGC2 &&
 +         check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
          :
 -    elif check_lib pthreads pthread.h pthread_join -lpthread; then
 +    elif check_lib pthreads pthread.h pthread_join   -lpthread &&
 +         check_lib pthreads pthread.h pthread_create -lpthread; then
          :
 -    elif check_func pthread_join; then
 +    elif check_func pthread_join && check_func pthread_create; then
          enable pthreads
      fi
 -    enabled pthreads &&
 +    check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
- fi
 +
- 
- if enabled pthreads; then
-   check_func pthread_cancel $pthreads_extralibs
++    if enabled pthreads; then
+         check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
++        check_func pthread_cancel $pthreads_extralibs
++    fi
  fi
  
- enabled pthreads &&
-     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
- 
 -disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
 -disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
 +enabled  zlib && check_lib zlib   zlib.h      zlibVersion    -lz
 +enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion    -lbz2
 +enabled  lzma && check_lib lzma   lzma.h lzma_version_number -llzma
  
  # On some systems dynamic loading requires no extra linker flags
 -check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
 +check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
  
  check_lib libm math.h sin -lm