configure

用来监视网络通信数据的源代码和应用程序,方便网络程序底层开发.

  if (./conftest; exit) 2>/dev/null; then
    ac_cv_prog_cc_cross=no
  else
    ac_cv_prog_cc_cross=yes
  fi
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  ac_cv_prog_cc_works=no
fi
rm -fr conftest*
ac_ext=c
# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
ac_cpp='$CPP $CPPFLAGS'
ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
cross_compiling=$ac_cv_prog_cc_cross

echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
if test $ac_cv_prog_cc_works = no; then
  { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
fi
echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
echo "configure:921: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
cross_compiling=$ac_cv_prog_cc_cross

echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
echo "configure:926: checking whether we are using GNU C" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.c <<EOF
#ifdef __GNUC__
  yes;
#endif
EOF
if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:935: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
  ac_cv_prog_gcc=yes
else
  ac_cv_prog_gcc=no
fi
fi

echo "$ac_t""$ac_cv_prog_gcc" 1>&6

if test $ac_cv_prog_gcc = yes; then
  GCC=yes
else
  GCC=
fi

ac_test_CFLAGS="${CFLAGS+set}"
ac_save_CFLAGS="$CFLAGS"
CFLAGS=
echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
echo "configure:954: checking whether ${CC-cc} accepts -g" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
  ac_cv_prog_cc_g=yes
else
  ac_cv_prog_cc_g=no
fi
rm -f conftest*

fi

echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
if test "$ac_test_CFLAGS" = set; then
  CFLAGS="$ac_save_CFLAGS"
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi

    if test "$GCC" = yes ; then
	    if test "$SHLICC2" = yes ; then
		    ac_cv_lbl_gcc_vers=2
		    V_CCOPT="-O2"
	    else
		    echo $ac_n "checking gcc version""... $ac_c" 1>&6
echo "configure:991: checking gcc version" >&5
		    if eval "test \"`echo '$''{'ac_cv_lbl_gcc_vers'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  ac_cv_lbl_gcc_vers=`$CC -v 2>&1 | \
			    sed -e '/^gcc version /!d' \
				-e 's/^gcc version //' \
				-e 's/ .*//' -e 's/^[^0-9]*//' \
				-e 's/\..*//'`
fi

		    echo "$ac_t""$ac_cv_lbl_gcc_vers" 1>&6
		    if test $ac_cv_lbl_gcc_vers -gt 1 ; then
			    V_CCOPT="-O2"
		    fi
	    fi
    else
	    echo $ac_n "checking that $CC handles ansi prototypes""... $ac_c" 1>&6
echo "configure:1009: checking that $CC handles ansi prototypes" >&5
	    if eval "test \"`echo '$''{'ac_cv_lbl_cc_ansi_prototypes'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1014 "configure"
#include "confdefs.h"
#include <sys/types.h>
int main() {
int frob(int, char *)
; return 0; }
EOF
if { (eval echo configure:1021: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_lbl_cc_ansi_prototypes=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_lbl_cc_ansi_prototypes=no
fi
rm -f conftest*
fi

	    echo "$ac_t""$ac_cv_lbl_cc_ansi_prototypes" 1>&6
	    if test $ac_cv_lbl_cc_ansi_prototypes = no ; then
		    case "$target_os" in

		    hpux*)
			    echo $ac_n "checking for HP-UX ansi compiler ($CC -Aa -D_HPUX_SOURCE)""... $ac_c" 1>&6
echo "configure:1039: checking for HP-UX ansi compiler ($CC -Aa -D_HPUX_SOURCE)" >&5
			    savedcflags="$CFLAGS"
			    CFLAGS="-Aa -D_HPUX_SOURCE $CFLAGS"
			    if eval "test \"`echo '$''{'ac_cv_lbl_cc_hpux_cc_aa'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1046 "configure"
#include "confdefs.h"
#include <sys/types.h>
int main() {
int frob(int, char *)
; return 0; }
EOF
if { (eval echo configure:1053: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_lbl_cc_hpux_cc_aa=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_lbl_cc_hpux_cc_aa=no
fi
rm -f conftest*
fi

			    echo "$ac_t""$ac_cv_lbl_cc_hpux_cc_aa" 1>&6
			    if test $ac_cv_lbl_cc_hpux_cc_aa = no ; then
				    { echo "configure: error: see the INSTALL doc for more info" 1>&2; exit 1; }
			    fi
			    CFLAGS="$savedcflags"
			    V_CCOPT="-Aa $V_CCOPT"
			    cat >> confdefs.h <<\EOF
#define _HPUX_SOURCE 1
EOF

			    ;;

		    *)
			    { echo "configure: error: see the INSTALL doc for more info" 1>&2; exit 1; }
			    ;;
		    esac
	    fi
	    V_INCLS="$V_INCLS -I/usr/local/include"
	    LDFLAGS="$LDFLAGS -L/usr/local/lib"

	    case "$target_os" in

	    irix*)
		    V_CCOPT="$V_CCOPT -xansi -signed -g3"
		    ;;

	    osf*)
		    V_CCOPT="$V_CCOPT -std1 -g3"
		    ;;

	    ultrix*)
		    echo $ac_n "checking that Ultrix $CC hacks const in prototypes""... $ac_c" 1>&6
echo "configure:1097: checking that Ultrix $CC hacks const in prototypes" >&5
		    if eval "test \"`echo '$''{'ac_cv_lbl_cc_const_proto'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1102 "configure"
#include "confdefs.h"
#include <sys/types.h>
int main() {
struct a { int b; };
			    void c(const struct a *)
; return 0; }
EOF
if { (eval echo configure:1110: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_lbl_cc_const_proto=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_lbl_cc_const_proto=no
fi
rm -f conftest*
fi

		    echo "$ac_t""$ac_cv_lbl_cc_const_proto" 1>&6
		    if test $ac_cv_lbl_cc_const_proto = no ; then
			    cat >> confdefs.h <<\EOF
#define const 
EOF

		    fi
		    ;;
	    esac
    fi

echo $ac_n "checking for inline""... $ac_c" 1>&6
echo "configure:1134: checking for inline" >&5
    if eval "test \"`echo '$''{'ac_cv_lbl_inline'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
	ac_cv_lbl_inline=""
	ac_lbl_cc_inline=no
	for ac_lbl_inline in inline __inline__ __inline
	do
	    cat > conftest.$ac_ext <<EOF
#line 1144 "configure"
#include "confdefs.h"
#define inline $ac_lbl_inline
		static inline struct iltest *foo(void);
		struct iltest {
		    int iltest1;
		    int iltest2;
		};

		static inline struct iltest *
		foo()
		{
		    static struct iltest xxx;

		    return &xxx;
		}
int main() {

; return 0; }
EOF
if { (eval echo configure:1164: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_lbl_cc_inline=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
fi
rm -f conftest*
	    if test "$ac_lbl_cc_inline" = yes ; then
		break;
	    fi
	done
	if test "$ac_lbl_cc_inline" = yes ; then
	    ac_cv_lbl_inline=$ac_lbl_inline
	fi
fi

    if test ! -z "$ac_cv_lbl_inline" ; then
	echo "$ac_t""$ac_cv_lbl_inline" 1>&6
    else
	echo "$ac_t""no" 1>&6
    fi
    cat >> confdefs.h <<EOF
#define inline $ac_cv_lbl_inline
EOF


echo $ac_n "checking for __attribute__""... $ac_c" 1>&6
echo "configure:1192: checking for __attribute__" >&5
if eval "test \"`echo '$''{'ac_cv___attribute__'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
cat > conftest.$ac_ext <<EOF
#line 1198 "configure"
#include "confdefs.h"

#include <stdlib.h>

int main() {

static void foo(void) __attribute__ ((noreturn));

static void
foo(void)
{
  exit(1);
}

; return 0; }
EOF
if { (eval echo configure:1215: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv___attribute__=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv___attribute__=no
fi
rm -f conftest*
fi

if test "$ac_cv___attribute__" = "yes"; then
  cat >> confdefs.h <<\EOF
#define HAVE___ATTRIBUTE__ 1
EOF

fi
echo "$ac_t""$ac_cv___attribute__" 1>&6


echo $ac_n "checking for u_int8_t using $CC""... $ac_c" 1>&6
echo "configure:1237: checking for u_int8_t using $CC" >&5
    if eval "test \"`echo '$''{'ac_cv_lbl_have_u_int8_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1242 "configure"
#include "confdefs.h"

#	include "confdefs.h"
#	include <sys/types.h>
#	if STDC_HEADERS
#	include <stdlib.h>
#	include <stddef.h>
#	endif
int main() {
u_int8_t i
; return 0; }
EOF
if { (eval echo configure:1255: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_lbl_have_u_int8_t=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_lbl_have_u_int8_t=no
fi
rm -f conftest*
fi

    echo "$ac_t""$ac_cv_lbl_have_u_int8_t" 1>&6
    if test $ac_cv_lbl_have_u_int8_t = no ; then
	    cat >> confdefs.h <<\EOF
#define u_int8_t u_char
EOF

    fi
echo $ac_n "checking for u_int16_t using $CC""... $ac_c" 1>&6
echo "configure:1275: checking for u_int16_t using $CC" >&5
    if eval "test \"`echo '$''{'ac_cv_lbl_have_u_int16_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1280 "configure"
#include "confdefs.h"

#	include "confdefs.h"
#	include <sys/types.h>
#	if STDC_HEADERS
#	include <stdlib.h>
#	include <stddef.h>
#	endif
int main() {
u_int16_t i
; return 0; }
EOF
if { (eval echo configure:1293: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_lbl_have_u_int16_t=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_lbl_have_u_int16_t=no
fi
rm -f conftest*
fi

    echo "$ac_t""$ac_cv_lbl_have_u_int16_t" 1>&6
    if test $ac_cv_lbl_have_u_int16_t = no ; then
	    cat >> confdefs.h <<\EOF
#define u_int16_t u_short
EOF

    fi
echo $ac_n "checking for u_int32_t using $CC""... $ac_c" 1>&6
echo "configure:1313: checking for u_int32_t using $CC" >&5
    if eval "test \"`echo '$''{'ac_cv_lbl_have_u_int32_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1318 "configure"
#include "confdefs.h"

#	include "confdefs.h"
#	include <sys/types.h>
#	if STDC_HEADERS
#	include <stdlib.h>
#	include <stddef.h>
#	endif
int main() {
u_int32_t i
; return 0; }
EOF
if { (eval echo configure:1331: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_lbl_have_u_int32_t=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_lbl_have_u_int32_t=no
fi
rm -f conftest*
fi

    echo "$ac_t""$ac_cv_lbl_have_u_int32_t" 1>&6
    if test $ac_cv_lbl_have_u_int32_t = no ; then
	    cat >> confdefs.h <<\EOF