On 11/3/2017 1:43 PM, Diego Biurrun wrote:
> - Move a variable closer to where it is used
> - Add an explanatory comment
> - Simplify a crosscompile check
> - Minor SHFLAGS simplification
> - Coalesce some threads tests
> ---
>  configure | 17 ++++++++---------
>  1 file changed, 8 insertions(+), 9 deletions(-)
> 
> diff --git a/configure b/configure
> index 6f96a06f03..33c52240aa 100755
> --- a/configure
> +++ b/configure
> @@ -347,8 +347,6 @@ EOF
>    exit 0
>  }
>  
> -quotes='""'
> -
>  log(){
>      echo "$@" >> $logfile
>  }
> @@ -2861,6 +2859,8 @@ done
>  
>  disabled logging && logfile=/dev/null
>  
> +# command line configuration sanity checks
> +
>  # we need to build at least one lib type
>  if ! enabled_any static shared; then
>      cat <<EOF
> @@ -3001,11 +3001,10 @@ case "$toolchain" in
>      ;;
>  esac
>  
> -test -n "$cross_prefix" && enable cross_compile
> -
> -if enabled cross_compile; then
> +if test -n "$cross_prefix"; then
>      test -n "$arch" && test -n "$target_os" ||
>          die "Must specify target arch (--arch) and OS (--target-os) when 
> cross-compiling"
> +    enable cross_compile
>  fi
>  
>  ar_default="${cross_prefix}${ar_default}"
> @@ -3828,7 +3827,7 @@ case $target_os in
>          ;;
>      sunos)
>          SHFLAGS='-shared -Wl,-h,$$(@F)'
> -        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
> +        enabled x86 && append SHFLAGS -mimpure-text
>          network_extralibs="-lsocket -lnsl"
>          # When using suncc to build, the Solaris linker will mark
>          # an executable with each instruction set encountered by
> @@ -4563,11 +4562,10 @@ if ! disabled pthreads && ! enabled w32threads; then
>      elif check_func pthread_join; then
>          enable pthreads
>      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
>  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
>  
> @@ -4849,6 +4847,7 @@ if enabled proper_dce; then
>      echo "X { local: *; };" > $TMPV
>      if test_ldflags -Wl,${version_script},$TMPV; then
>          append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
> +        quotes='""'
>          check_cc <<EOF && enable symver_asm_label
>  void ff_foo(void) __asm__ ("av_foo@VERSION");
>  void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
> 

LGTM
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