wireshark/wiretap/configure.in
Jörg Mayer 758685ca0d AC_ARG_ENABLE takes 4 argument: The 3rd specifies what to do in case a
configure option is given on the command line. The value of the arguement
is passwd in the enableval variable. The 4th argument tells what to do in
case no command line argument was given.
This causes --disable-gtk2 (which is the default) to behave differently
from the case when no option is given.
I do not really understand where the difference in the behaviour of the
generated codes comes from, but I definitely see a difference.

Fixed all occurrences where the 3rd arguement was empty.

svn path=/trunk/; revision=7044
2003-01-30 10:20:47 +00:00

218 lines
6 KiB
Text

# $Id: configure.in,v 1.45 2003/01/30 10:20:44 jmayer Exp $
dnl
dnl Process this file with autoconf 2.13 or later to produce a
dnl configure script; 2.12 doesn't generate a "configure" script that
dnl defines SHELL, and "Makefile.in" has
dnl
dnl SHELL = @SHELL@
dnl
dnl which requires it to be defined - and there may be other problems
dnl with pre-2.13 "autoconf" as well.
dnl
AC_INIT(wtap.c)
AC_PREREQ(2.13)
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE(libwtap.a, 0.0.0)
AM_CONFIG_HEADER(config.h)
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_YACC
AM_PROG_LEX
AC_PROG_LIBTOOL
AC_PATH_PROG(LEX, flex)
AC_SUBST(FLEX_PATH)
#
# If we're running gcc, add '-Wall -W -Wcast-qual' to CFLAGS, and add
# '-D_U_="__attribute__((unused))"' as well, so we can use _U_ to
# flag unused function arguments and not get warnings about them.
# If "--with-extra-gcc-checks" was specified, add "-Wcast-align"
# as well. (Add more checks here in the future?)
#
# Otherwise, add '-D_U_=""', so that _U_ used to flag an unused function
# argument will compile with non-GCC compilers.
#
AC_ARG_WITH(extra-gcc-checks,
[ --with-extra-gcc-checks Do additional -W checks in GCC. [default=no]],
[
if test $withval != no
then
ethereal_extra_gcc_flags=" -Wcast-align"
fi
],)
AC_MSG_CHECKING(to see if we can add '-Wall -W -Wcast-qual$ethereal_extra_gcc_flags' to CFLAGS)
if test x$GCC != x ; then
CFLAGS="-D_U_=\"__attribute__((unused))\" -Wall -W -Wcast-qual$ethereal_extra_gcc_flags $CFLAGS"
AC_MSG_RESULT(yes)
else
CFLAGS="-D_U_=\"\" $CFLAGS"
AC_MSG_RESULT(no)
fi
#
# Add any platform-specific compiler flags needed.
#
AC_MSG_CHECKING(for platform-specific compiler flags)
if test "x$GCC" = x
then
#
# Not GCC - assume it's the vendor's compiler.
#
case "$host_os" in
hpux*)
#
# HP's ANSI C compiler; flags suggested by Jost Martin.
# "-Ae" for ANSI C plus extensions such as "long long".
# "+O2", for optimization. XXX - works with "-g"?
#
CFLAGS="-Ae +O2 $CFLAGS"
AC_MSG_RESULT(HP ANSI C compiler - added -Ae +O2)
;;
darwin*)
#
# It may be called "cc", but it's really a GCC derivative
# with a problematic special precompiler and precompiled
# headers; turn off the special precompiler, as some
# apparently-legal code won't compile with its precompiled
# headers.
#
CFLAGS="-no-cpp-precomp $CFLAGS"
AC_MSG_RESULT(Apple GCC - added -no-cpp-precomp)
;;
*)
AC_MSG_RESULT(none needed)
;;
esac
else
case "$host_os" in
darwin*)
#
# See comments above about Apple's lovely C compiler.
#
CFLAGS="-no-cpp-precomp $CFLAGS"
AC_MSG_RESULT(Apple GCC - added -no-cpp-precomp)
;;
*)
AC_MSG_RESULT(none needed)
;;
esac
fi
AC_ARG_ENABLE(gtk2,
[ --enable-gtk2 build Glib2/Gtk2+-based (t)ethereal. [default=no]],enable_gtk2=$enableval,enable_gtk2=no)
if test "x$enable_gtk2" = "xyes" ; then
AM_PATH_GLIB_2_0(2.0.0, CFLAGS="$CFLAGS $GLIB_CFLAGS" LIBS="$LIBS $GLIB_LIBS", , gmodule)
else
AM_PATH_GLIB(1.2.0, CFLAGS="$CFLAGS $GLIB_CFLAGS" LIBS="$LIBS $GLIB_LIBS", , gmodule)
fi
dnl Look in /usr/local for header files and libraries ?
AC_ARG_ENABLE(usr-local,
[ --enable-usr-local look for headers and libs in /usr/local tree. [default=yes]],enable_usr_local=$enableval,enable_usr_local=yes)
AC_MSG_CHECKING(whether to use /usr/local for headers and libraries)
if test "x$enable_usr_local" = "xyes" ; then
AC_MSG_RESULT(yes)
#
# Arrange that we search for header files in "/usr/local/include",
# as various packages we use ("libpcap", "zlib") may have been installed
# under "/usr/local/include".
#
# We do this after checking for GLib, so that "-I/usr/local/include"
# comes after any "-I" flags added by "AM_PATH_GLIB"; if the user has
# installed a pre-1.2.9 version of GLib, it'd probably go under
# "/usr/local", and if they then install 1.2.9 or later without
# uninstalling the pre-1.2.9 version, 1.2.9's header files won't be
# in "/usr/local/include" (they're put in a separate directory so that
# GLib 1.2[.x] and 1.3[.x]/2.x can coexist), and if we search
# "/usr/local/include" before searching the directory "AM_PATH_GLIB"
# specifies, we may pick up headers from the older version.
#
CFLAGS="$CFLAGS -I/usr/local/include"
CPPFLAGS="$CPPFLAGS -I/usr/local/include"
#
# Arrange that we search for libraries in "/usr/local/lib", as we'll
# be testing whether zlib has gzgets, and we need to be able to find
# zlib even if it's in "/usr/local/lib".
#
# We do this after checking for GLib; see above.
#
LDFLAGS="$LDFLAGS -L/usr/local/lib"
else
AC_MSG_RESULT(no)
fi
dnl Checks for header files
AC_HEADER_STDC
AC_CHECK_HEADERS(sys/time.h netinet/in.h unistd.h fcntl.h sys/stat.h sys/types.h)
# We must know our byte order
AC_C_BIGENDIAN
#
# Look for libpcap, so we can include <pcap.h> in libpcap.c if it's
# found.
#
# "--with-pcap" is merely done to allow the user to specify a directory
# in which to look for <pcap.h> (and so that specifying it to the
# top-level Ethereal configure script specifies it to the Wiretap
# configure script as well); we search for it regardless of whether
# "--without-pcap" was specified, as Wiretap isn't linked with it and
# there's no benefit to not looking for the header.
#
AC_ARG_WITH(pcap,
[ --with-pcap=DIR libpcap is located in directory DIR.],
[
if test $withval != yes -a $withval != no
then
pcap_dir=$withval
fi
],[
pcap_dir=
])
AC_WIRETAP_PCAP_CHECK
dnl zlib check
AC_MSG_CHECKING(whether to use zlib for reading compressed capture files)
AC_ARG_WITH(zlib,
[ --with-zlib[=DIR] use zlib (located in directory DIR, if supplied) to read compressed data. [default=yes, if present]],
[
if test $withval = no
then
want_zlib=no
elif test $withval = yes
then
want_zlib=yes
else
want_zlib=yes
zlib_dir=$withval
fi
],[
#
# Use zlib if it's present, otherwise don't.
#
want_zlib=ifpresent
zlib_dir=
])
if test "x$want_zlib" = "xno" ; then
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(yes)
AC_WIRETAP_ZLIB_CHECK
if test "x$want_zlib" = "xno" ; then
AC_MSG_RESULT(zlib not found - disabling compressed capture file support)
fi
fi
AC_OUTPUT(Makefile)