mirror of
https://github.com/nmap/nmap.git
synced 2025-12-06 04:31:29 +00:00
Avoid trying to find flex/bison when configuring libpcap (we pre-generate those files)
This commit is contained in:
dmiller
273
libpcap/configure
vendored
273
libpcap/configure
vendored
@@ -664,11 +664,6 @@ DEPENDENCY_CFLAG
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LN_S
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AR
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RANLIB
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YFLAGS
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YACC
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LEXLIB
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LEX_OUTPUT_ROOT
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LEX
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PCAP_SUPPORT_PACKET_RING
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VALGRINDTEST_SRC
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LIBOBJS
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@@ -772,9 +767,7 @@ CFLAGS
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LDFLAGS
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LIBS
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CPPFLAGS
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CPP
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YACC
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YFLAGS'
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CPP'
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# Initialize some variables set by options.
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@@ -1452,12 +1445,6 @@ Some influential environment variables:
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CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
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you have headers in a nonstandard directory <include dir>
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CPP C preprocessor
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YACC The `Yet Another Compiler Compiler' implementation to use.
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Defaults to the first program found out of: `bison -y', `byacc',
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`yacc'.
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YFLAGS The list of arguments that will be passed by default to $YACC.
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This script will default YFLAGS to the empty string to avoid a
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default value of `-d' given by some make applications.
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Use these variables to override the choices made by `configure' or to help
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it to find libraries and programs with nonstandard names/locations.
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@@ -7713,264 +7700,6 @@ fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${enable_yydebug-no}" >&5
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$as_echo "${enable_yydebug-no}" >&6; }
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#
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# Look for {f}lex.
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#
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for ac_prog in flex lex
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do
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# Extract the first word of "$ac_prog", so it can be a program name with args.
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set dummy $ac_prog; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_LEX+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$LEX"; then
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ac_cv_prog_LEX="$LEX" # Let the user override the test.
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_LEX="$ac_prog"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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fi
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fi
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LEX=$ac_cv_prog_LEX
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if test -n "$LEX"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $LEX" >&5
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$as_echo "$LEX" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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test -n "$LEX" && break
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done
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test -n "$LEX" || LEX=":"
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if test "x$LEX" != "x:"; then
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cat >conftest.l <<_ACEOF
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%%
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a { ECHO; }
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b { REJECT; }
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c { yymore (); }
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d { yyless (1); }
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e { /* IRIX 6.5 flex 2.5.4 underquotes its yyless argument. */
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yyless ((input () != 0)); }
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f { unput (yytext[0]); }
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. { BEGIN INITIAL; }
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%%
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#ifdef YYTEXT_POINTER
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extern char *yytext;
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#endif
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int
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main (void)
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{
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return ! yylex () + ! yywrap ();
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}
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_ACEOF
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{ { ac_try="$LEX conftest.l"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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$as_echo "$ac_try_echo"; } >&5
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(eval "$LEX conftest.l") 2>&5
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ac_status=$?
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$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking lex output file root" >&5
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$as_echo_n "checking lex output file root... " >&6; }
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if ${ac_cv_prog_lex_root+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -f lex.yy.c; then
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ac_cv_prog_lex_root=lex.yy
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elif test -f lexyy.c; then
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ac_cv_prog_lex_root=lexyy
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else
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as_fn_error $? "cannot find output from $LEX; giving up" "$LINENO" 5
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_lex_root" >&5
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$as_echo "$ac_cv_prog_lex_root" >&6; }
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LEX_OUTPUT_ROOT=$ac_cv_prog_lex_root
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if test -z "${LEXLIB+set}"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking lex library" >&5
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$as_echo_n "checking lex library... " >&6; }
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if ${ac_cv_lib_lex+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_save_LIBS=$LIBS
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ac_cv_lib_lex='none needed'
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for ac_lib in '' -lfl -ll; do
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LIBS="$ac_lib $ac_save_LIBS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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`cat $LEX_OUTPUT_ROOT.c`
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_lib_lex=$ac_lib
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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test "$ac_cv_lib_lex" != 'none needed' && break
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done
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LIBS=$ac_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lex" >&5
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$as_echo "$ac_cv_lib_lex" >&6; }
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test "$ac_cv_lib_lex" != 'none needed' && LEXLIB=$ac_cv_lib_lex
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether yytext is a pointer" >&5
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$as_echo_n "checking whether yytext is a pointer... " >&6; }
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if ${ac_cv_prog_lex_yytext_pointer+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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# POSIX says lex can declare yytext either as a pointer or an array; the
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# default is implementation-dependent. Figure out which it is, since
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# not all implementations provide the %pointer and %array declarations.
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ac_cv_prog_lex_yytext_pointer=no
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ac_save_LIBS=$LIBS
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LIBS="$LEXLIB $ac_save_LIBS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#define YYTEXT_POINTER 1
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`cat $LEX_OUTPUT_ROOT.c`
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_prog_lex_yytext_pointer=yes
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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LIBS=$ac_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_lex_yytext_pointer" >&5
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$as_echo "$ac_cv_prog_lex_yytext_pointer" >&6; }
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if test $ac_cv_prog_lex_yytext_pointer = yes; then
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$as_echo "#define YYTEXT_POINTER 1" >>confdefs.h
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fi
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rm -f conftest.l $LEX_OUTPUT_ROOT.c
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fi
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if test "$LEX" = ":"; then
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as_fn_error $? "Neither flex nor lex was found." "$LINENO" 5
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fi
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#
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# Make sure {f}lex supports the -P, --header-file, and --nounput flags
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# and supports processing our scanner.l.
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#
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for capable lex" >&5
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$as_echo_n "checking for capable lex... " >&6; }
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if ${tcpdump_cv_capable_lex+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if $LEX -P pcap_ --header-file=/dev/null --nounput -t $srcdir/scanner.l > /dev/null 2>&1; then
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tcpdump_cv_capable_lex=yes
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else
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tcpdump_cv_capable_lex=insufficient
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $tcpdump_cv_capable_lex" >&5
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$as_echo "$tcpdump_cv_capable_lex" >&6; }
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if test $tcpdump_cv_capable_lex = insufficient ; then
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as_fn_error $? "$LEX is insufficient to compile libpcap.
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libpcap requires Flex 2.5.31 or later, or a compatible version of lex." "$LINENO" 5
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fi
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#
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# Look for yacc/bison/byacc.
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#
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for ac_prog in 'bison -y' byacc
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do
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# Extract the first word of "$ac_prog", so it can be a program name with args.
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set dummy $ac_prog; ac_word=$2
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
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$as_echo_n "checking for $ac_word... " >&6; }
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if ${ac_cv_prog_YACC+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if test -n "$YACC"; then
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ac_cv_prog_YACC="$YACC" # Let the user override the test.
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else
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as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
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for as_dir in $PATH
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do
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IFS=$as_save_IFS
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test -z "$as_dir" && as_dir=.
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for ac_exec_ext in '' $ac_executable_extensions; do
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if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
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ac_cv_prog_YACC="$ac_prog"
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$as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
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break 2
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fi
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done
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done
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IFS=$as_save_IFS
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fi
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fi
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YACC=$ac_cv_prog_YACC
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if test -n "$YACC"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $YACC" >&5
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$as_echo "$YACC" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
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$as_echo "no" >&6; }
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fi
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test -n "$YACC" && break
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done
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test -n "$YACC" || YACC="yacc"
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#
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# Make sure it supports the -p flag and supports processing our
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# grammar.y.
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#
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for capable yacc/bison" >&5
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$as_echo_n "checking for capable yacc/bison... " >&6; }
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if ${tcpdump_cv_capable_yacc+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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if $YACC -p pcap_ -o /dev/null $srcdir/grammar.y >/dev/null 2>&1; then
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tcpdump_cv_capable_yacc=yes
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else
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tcpdump_cv_capable_yacc=insufficient
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fi
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $tcpdump_cv_capable_yacc" >&5
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$as_echo "$tcpdump_cv_capable_yacc" >&6; }
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if test $tcpdump_cv_capable_yacc = insufficient ; then
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as_fn_error $? "$YACC is insufficient to compile libpcap.
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libpcap requires Bison, a newer version of Berkeley YACC with support
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for reentrant parsers, or another YACC compatible with them." "$LINENO" 5
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fi
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#
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# Do various checks for various OSes and versions of those OSes.
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#
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@@ -1489,50 +1489,6 @@ if test "$enable_yydebug" = "yes"; then
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fi
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AC_MSG_RESULT(${enable_yydebug-no})
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#
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# Look for {f}lex.
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#
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AC_PROG_LEX
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if test "$LEX" = ":"; then
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AC_MSG_ERROR([Neither flex nor lex was found.])
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fi
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#
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# Make sure {f}lex supports the -P, --header-file, and --nounput flags
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# and supports processing our scanner.l.
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#
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AC_CACHE_CHECK([for capable lex], tcpdump_cv_capable_lex,
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if $LEX -P pcap_ --header-file=/dev/null --nounput -t $srcdir/scanner.l > /dev/null 2>&1; then
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tcpdump_cv_capable_lex=yes
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else
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tcpdump_cv_capable_lex=insufficient
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fi)
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if test $tcpdump_cv_capable_lex = insufficient ; then
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AC_MSG_ERROR([$LEX is insufficient to compile libpcap.
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libpcap requires Flex 2.5.31 or later, or a compatible version of lex.])
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fi
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#
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# Look for yacc/bison/byacc.
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#
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AC_PROG_YACC
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#
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# Make sure it supports the -p flag and supports processing our
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# grammar.y.
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#
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AC_CACHE_CHECK([for capable yacc/bison], tcpdump_cv_capable_yacc,
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if $YACC -p pcap_ -o /dev/null $srcdir/grammar.y >/dev/null 2>&1; then
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tcpdump_cv_capable_yacc=yes
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else
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tcpdump_cv_capable_yacc=insufficient
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fi)
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if test $tcpdump_cv_capable_yacc = insufficient ; then
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AC_MSG_ERROR([$YACC is insufficient to compile libpcap.
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libpcap requires Bison, a newer version of Berkeley YACC with support
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for reentrant parsers, or another YACC compatible with them.])
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fi
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#
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# Do various checks for various OSes and versions of those OSes.
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#
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Reference in New Issue
Block a user