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|
#! /bin/sh
#
# Script to give the appropriate compiler flags and linker flags
# to use when building code that uses libpcap.
#
# These variables come from the configure script, so includedir and
# libdir may be defined in terms of prefix and exec_prefix, so the
# latter must be defined as well.
#
prefix="@prefix@"
exec_prefix="@exec_prefix@"
includedir="@includedir@"
libdir="@libdir@"
LIBS="@LIBS@"
LIBS_STATIC="@LIBS_STATIC@"
VERSION="@PACKAGE_VERSION@"
static=0
static_pcap_only=0
show_cflags=0
show_libs=0
show_additional_libs=0
while [ "$#" != 0 ]
do
case "$1" in
--static)
static=1
;;
--static-pcap-only)
static_pcap_only=1
;;
--cflags)
show_cflags=1
;;
--libs)
show_libs=1
;;
--additional-libs)
show_additional_libs=1
;;
-h|--help)
echo "Usage: pcap-config [ --help ] [--version] [ --static | --static-pcap-only ] [ --libs | --additional-libs ]"
exit 0
;;
--version)
echo "$VERSION"
exit 0
;;
*)
echo "pcap-config: Invalid command-line option $1 specified" 1>&2
echo "Usage: pcap-config [ --help ] [ --static | --static-pcap-only ] [ --libs | --additional-libs ]" 1>&2
exit 1
;;
esac
shift
done
#
# If we aren't installing in /usr, then provide a -L flag to let build
# processes find our library.
#
# (We must check $prefix, as $libdir isn't necessarily /usr/lib in this
# case - for example, Linux distributions for 64-bit platforms that
# also provide support for binaries for a 32-bit version of the
# platform may put the 64-bit libraries, the 32-bit libraries, or both
# in directories other than /usr/lib.)
#
if [ "$prefix" != "/usr" ]
then
LPATH=-L$libdir
fi
if [ "$static" = 1 ]
then
#
# Include LIBS_STATIC so that the flags include libraries
# containing routines that libpcap uses, and libraries
# containing routines those libraries use, etc., so that a
# completely statically linked program - i.e., linked only with
# static libraries - will be linked with all necessary
# libraries.
#
if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
then
echo "-I$includedir $LPATH -l@PACKAGE_NAME@ $LIBS_STATIC"
elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
then
echo "-I$includedir $LPATH $LIBS_STATIC"
elif [ "$show_cflags" = 1 ]
then
echo "-I$includedir"
elif [ "$show_libs" = 1 ]
then
echo "$LPATH -l@PACKAGE_NAME@ $LIBS_STATIC"
elif [ "$show_additional_libs" = 1 ]
then
echo "$LIBS_STATIC"
fi
elif [ "$static_pcap_only" = 1 ]
then
#
# Include LIBS so that the flags include libraries
# containing routines that libpcap uses, but not the libraries
# on which libpcap depends, so that an otherwise
# dynamically-linked program, linked statically only with
# libpcap - i.e., linked with a static libpcap and dynamic
# versions of other libraries - will be linked with all
# necessary libraries.
#
if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
then
echo "-I$includedir $LPATH -l@PACKAGE_NAME@ $LIBS"
elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
then
echo "-I$includedir $LPATH $LIBS"
elif [ "$show_cflags" = 1 ]
then
echo "-I$includedir"
elif [ "$show_libs" = 1 ]
then
echo "$LPATH -l@PACKAGE_NAME@ $LIBS"
elif [ "$show_additional_libs" = 1 ]
then
echo "$LIBS"
fi
else
#
# Don't included LIBS or LIBS_STATIC, for building a program
# with a dynamic libpcap; libpcap, being a dynamic library, will
# cause all of its dynamic-library dependencies to be pulled in
# at run time.
#
# Do, however, include RPATH, to make sure that, on platforms
# that require this, programs built with this version of
# libpcap can find it at run time.
#
if [ "$show_cflags" = 1 -a "$show_libs" = 1 ]
then
echo "-I$includedir $LPATH @RPATH@ -l@PACKAGE_NAME@"
elif [ "$show_cflags" = 1 -a "$show_additional_libs" = 1 ]
then
echo "-I$includedir"
elif [ "$show_cflags" = 1 ]
then
echo "-I$includedir"
elif [ "$show_libs" = 1 ]
then
echo "$LPATH @RPATH@ -l@PACKAGE_NAME@"
fi
fi
|
