configure

一个开放源代码的 AT&T 的 Korn Shell 的复制品, 支持大多数 ksh89 的特性。

rm -f conftest*
fi
rm -f conftest*
  ac_cv_prog_CPP="$CPP"
fi
  CPP="$ac_cv_prog_CPP"
else
  ac_cv_prog_CPP="$CPP"
fi
echo "$ac_t""$CPP" 1>&6

if test $ac_cv_prog_gcc = yes; then
    echo $ac_n "checking whether ${CC-cc} needs -traditional""... $ac_c" 1>&6
echo "configure:929: checking whether ${CC-cc} needs -traditional" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc_traditional'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
    ac_pattern="Autoconf.*'x'"
  cat > conftest.$ac_ext <<EOF
#line 935 "configure"
#include "confdefs.h"
#include <sgtty.h>
Autoconf TIOCGETP
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "$ac_pattern" >/dev/null 2>&1; then
  rm -rf conftest*
  ac_cv_prog_gcc_traditional=yes
else
  rm -rf conftest*
  ac_cv_prog_gcc_traditional=no
fi
rm -f conftest*


  if test $ac_cv_prog_gcc_traditional = no; then
    cat > conftest.$ac_ext <<EOF
#line 953 "configure"
#include "confdefs.h"
#include <termio.h>
Autoconf TCGETA
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "$ac_pattern" >/dev/null 2>&1; then
  rm -rf conftest*
  ac_cv_prog_gcc_traditional=yes
fi
rm -f conftest*

  fi
fi

echo "$ac_t""$ac_cv_prog_gcc_traditional" 1>&6
  if test $ac_cv_prog_gcc_traditional = yes; then
    CC="$CC -traditional"
  fi
fi

if test X"$GCC" = Xyes && test -f $srcdir/Warn-flags; then
  CFLAGS="${CFLAGS+$CFLAGS }`cat $srcdir/Warn-flags`"
fi

LDSTATIC=${LDSTATIC-}
test X"$LDSTATIC" != X && LDFLAGS="${LDFLAGS+$LDFLAGS }$LDSTATIC"

      echo $ac_n "checking if this is a problematic os""... $ac_c" 1>&6
echo "configure:982: checking if this is a problematic os" >&5
if eval "test \"`echo '$''{'ksh_cv_os_type'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
   ksh_cv_os_type=no
      # Some tests below add -C to CPPFLAGS
      saveCPPFLAGS="$CPPFLAGS"
      for i in AIX ISC MINIX SCO OS2_EMX TITANOS NEXT HPUX; do
	case $i in	#((
	  AIX)
	    cat > conftest.$ac_ext <<EOF
#line 993 "configure"
#include "confdefs.h"

#ifdef _AIX
yes
#endif
	       
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "yes" >/dev/null 2>&1; then
  rm -rf conftest*
  ksh_cv_os_type=$i
fi
rm -f conftest*

	    ;;	#(
	  ISC)
	    # Both native ISC cpp and gcc understand this (leave comments in)
	    CPPFLAGS="$CPPFLAGS -C"
	    #XXX grep part won't work if cross-compiling...
	    cat > conftest.$ac_ext <<EOF
#line 1014 "configure"
#include "confdefs.h"
#include <unistd.h>
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "INTERACTIVE Systems Corporation" >/dev/null 2>&1; then
  rm -rf conftest*
  if grep _POSIX_VERSION /usr/include/sys/unistd.h > /dev/null 2>&1; then
		  ksh_cv_os_type="$i-posix"
		else
		  ksh_cv_os_type=$i
		fi
fi
rm -f conftest*
	    CPPFLAGS="$saveCPPFLAGS"
	    ;;	#(
	  MINIX)
	    ac_safe=`echo "minix/config.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for minix/config.h""... $ac_c" 1>&6
echo "configure:1033: checking for minix/config.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1038 "configure"
#include "confdefs.h"
#include <minix/config.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1043: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  ksh_cv_os_type=$i
else
  echo "$ac_t""no" 1>&6
fi
	    ;;	#(
	  SCO)
	    # Both native SCO cpp and gcc understand this (leave comments in)
	    CPPFLAGS="$CPPFLAGS -C"
	    cat > conftest.$ac_ext <<EOF
#line 1068 "configure"
#include "confdefs.h"
#include <unistd.h>
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "The Santa Cruz Operation" >/dev/null 2>&1; then
  rm -rf conftest*
  ksh_cv_os_type=$i
fi
rm -f conftest*
	    CPPFLAGS="$saveCPPFLAGS"
	    ;;	#(
	  OS2_EMX)
	    cat > conftest.$ac_ext <<EOF
#line 1082 "configure"
#include "confdefs.h"

#ifdef __EMX__
yes
#endif
	       
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "yes" >/dev/null 2>&1; then
  rm -rf conftest*
  ksh_cv_os_type=$i
fi
rm -f conftest*
	    ;;	#(
	  TITANOS)
	    cat > conftest.$ac_ext <<EOF
#line 1099 "configure"
#include "confdefs.h"

#if defined(titan) || defined(_titan) || defined(__titan)
YesTitan
#endif
	       
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "YesTitan" >/dev/null 2>&1; then
  rm -rf conftest*
  ksh_cv_os_type=$i
fi
rm -f conftest*
	    ;;	#(
	  NEXT)
	    #
	    # NeXT 3.2 (other versions?) - cc -E doesn't work and /lib/cpp
	    # doesn't define things that need defining, so tests that rely
	    # on $CPP will break.
	    #
	    # Hmmm - can't safely use CPP to test for NeXT defines, so have
	    # to use a program that won't compile on a NeXT and one that will
	    # only compile on a NeXT...
	    cat > conftest.$ac_ext <<EOF
#line 1124 "configure"
#include "confdefs.h"

int main() {

	        #if defined(__NeXT) || defined(NeXT)
		  this is a NeXT box and the compile should fail
	        #endif
	      
; return 0; }
EOF
if { (eval echo configure:1135: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  :
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  cat > conftest.$ac_ext <<EOF
#line 1142 "configure"
#include "confdefs.h"

int main() {

		  #if !defined(__NeXT) && !defined(NeXT)
		    this is NOT a NeXT box and the compile should fail
		  #endif
		
; return 0; }
EOF
if { (eval echo configure:1153: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ksh_cv_os_type=$i
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
fi
rm -f conftest*
fi
rm -f conftest*	    ;;	#(
	  HPUX)
	    cat > conftest.$ac_ext <<EOF
#line 1165 "configure"
#include "confdefs.h"

#ifdef __hpux
yes
#endif
	       
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "yes" >/dev/null 2>&1; then
  rm -rf conftest*
  ksh_cv_os_type=$i
fi
rm -f conftest*

	    ;;	#(
	esac		#))
	test $ksh_cv_os_type != no && break
      done
    
fi

echo "$ac_t""$ksh_cv_os_type" 1>&6
  case $ksh_cv_os_type in	#((
    AIX)
      cat >> confdefs.h <<\EOF
#define _ALL_SOURCE 1
EOF
      ;;			#(
    ISC)
      cat >> confdefs.h <<\EOF
#define OS_ISC 1
EOF
      ;;			#(
    ISC-posix)
      cat >> confdefs.h <<\EOF
#define OS_ISC 1
EOF
      cat >> confdefs.h <<\EOF
#define _POSIX_SOURCE 1
EOF
      if test "$GCC" = yes; then
	CC="$CC -posix"
      else
	CC="$CC -Xp"
      fi
      ;;			#(
    MINIX)
      cat >> confdefs.h <<\EOF
#define _POSIX_SOURCE 1
EOF
      cat >> confdefs.h <<\EOF
#define _POSIX_1_SOURCE 2
EOF
      cat >> confdefs.h <<\EOF
#define _MINIX 1
EOF
      ;;			#(
    SCO)
      cat >> confdefs.h <<\EOF
#define OS_SCO 1
EOF
      ;;			#(
    OS2_EMX)
      # XXX change this to OS_OS2 or OS_OS2_EMX?
      cat >> confdefs.h <<\EOF
#define OS2 1
EOF
      ac_exe_suffix=.exe
      ;;			#(
    TITANOS)
      # Need to use cc -43 to get a shell with job control
      case "$CC" in		#((
        *-43*)  			# Already have -43 option?
	  ;;			#(
	*/cc|*/cc' '|*/cc'	'|cc|cc' '|cc'	') # Using stock compiler?
	  CC="$CC -43"
	  ;;			#(
      esac			#))
      #
      # Force dirent check to find the right thing.  There is a dirent.h
      # (and a sys/dirent.h) file which compiles, but generates garbage...
      # 
      ac_cv_header_dirent_dirent_h=no
      ac_cv_header_dirent_sys_ndir_h=no
      ac_cv_header_dirent_sys_dir_h=yes
      ;;			#(
    NEXT)
      #
      # NeXT 3.2 (other versions?) - cc -E doesn't work and /lib/cpp
      # doesn't define things that need defining, so tests that rely
      # on $CPP will break.
      #
      cat > conftest.$ac_ext <<EOF
#line 1259 "configure"
#include "confdefs.h"
#include <signal.h>
	#if !defined(SIGINT) || !defined(SIGQUIT)
	    Bad NeXT
	#endif
	
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "Bad NeXT" >/dev/null 2>&1; then
  rm -rf conftest*
  { echo "configure: error: 
There is a problem on NeXT boxes resulting in a bad siglist.out file being
generated (which breaks the trap and kill commands) and probably resulting
in many configuration tests not working correctly.

You appear to have this problem - see the comments on NeXT in the pdksh
README file for work arounds." 1>&2; exit 1; }
fi
rm -f conftest*
      ;;			#(
    HPUX)
      #
      # In some versions of hpux (eg, 10.2), getwd & getcwd will dump core
      # if directory is not readble.
      #
      # name is used in test program
      echo $ac_n "checking for bug in getwd""... $ac_c" 1>&6
echo "configure:1287: checking for bug in getwd" >&5
if eval "test \"`echo '$''{'ksh_cv_hpux_getwd_bug'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
   tmpdir=conftest.dir
	  if mkdir $tmpdir ; then
	    if test "$cross_compiling" = yes; then
  echo "configure: warning: assuming getwd broken" 1>&2; ksh_cv_hpux_getwd_bug=yes
else
cat > conftest.$ac_ext <<EOF
#line 1297 "configure"
#include "confdefs.h"

		int
		main()
		{
		  char buf[8 * 1024];
		  char *dirname = "conftest.dir";
		  int ok = 0;
		  if (chdir(dirname) < 0)
		    exit(2);
		  if (chmod(".", 0) < 0)
		    exit(3);
		  /* Test won't work if run as root - so don't be root */
		  if (getuid() == 0 || geteuid() == 0)
		    setresuid(1, 1, 1);	/* hpux has this */
#ifdef HAVE_GETWD /* silly since HAVE_* tests haven't been done yet */
		  {
		      extern char *getwd();
		      ok = getwd(buf) == 0;
		  }
#else
		  {
		      extern char *getcwd();
		      ok = getcwd(buf, sizeof(buf)) == 0;
		  }
#endif
		  exit(ok ? 0 : 10);
		  return ok ? 0 : 10;
		}
EOF
eval $ac_link
if test -s conftest$ac_exe_suffix && (./conftest; exit) 2>/dev/null; then
  ksh_cv_hpux_getwd_bug=no
else
  ksh_cv_hpux_getwd_bug=yes
fi
fi
rm -fr conftest*
	       test -d $tmpdir && rmdir $tmpdir
	  else
	     { echo "configure: error: could not make temp directory for test" 1>&2; exit 1; }; ksh_cv_hpux_getwd_bug=yes
	  fi
fi

echo "$ac_t""$ksh_cv_hpux_getwd_bug" 1>&6
      if test $ksh_cv_hpux_getwd_bug = yes; then
	cat >> confdefs.h <<\EOF
#define HPUX_GETWD_BUG 1
EOF

      fi
      ;;			#(
  esac				#))
 
if test "$program_transform_name" = s,x,x,; then
  program_transform_name=
else
  # Double any \ or $.  echo might interpret backslashes.
  cat <<\EOF_SED > conftestsed
s,\\,\\\\,g; s,\$,$$,g
EOF_SED
  program_transform_name="`echo $program_transform_name|sed -f conftestsed`"
  rm -f conftestsed
fi
test "$program_prefix" != NONE &&
  program_transform_name="s,^,${program_prefix},; $program_transform_name"
# Use a double $ so make ignores it.
test "$program_suffix" != NONE &&
  program_transform_name="s,\$\$,${program_suffix},; $program_transform_name"

# sed with no file args requires a program.
test "$program_transform_name" = "" && program_transform_name="s,x,x,"

ac_header_dirent=no
for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h