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|
dnl @synopsis GP_CHECK_POPT(FLAG)
dnl
dnl Check whether libpopt is available.
dnl FLAG must be one of
dnl "mandatory"
dnl "default-enabled"
dnl "default-disabled"
dnl
AC_DEFUN([GP_CHECK_POPT],[
#
# [GP_CHECK_POPT]
#
AC_REQUIRE([GP_CONFIG_MSG])dnl
m4_if([$1],[mandatory], [_GP_CHECK_POPT([mandatory])],
[$1],[default-enabled], [_GP_CHECK_POPT([disable])],
[$1],[default-disabled], [_GP_CHECK_POPT([enable])],
[m4_errprint(__file__:__line__:[ Error:
Illegal argument to $0: `$1'
Valid values are: mandatory, default-enabled, default-disabled
])m4_exit(1)])dnl
])dnl
dnl
AC_DEFUN([_GP_CHECK_POPT],[
m4_if([$1],[mandatory],[
try_popt=yes
require_popt=yes
],[
try_popt=auto
require_popt=no
AC_ARG_ENABLE([popt],
[AS_HELP_STRING([--$1-popt],[Do not use popt])],
[ if test "x$withval" = no \
|| test "x$withval" = off \
|| test "x$withval" = false;
then
try_popt=no
require_popt=no
elif test "x$withval" = yes \
|| test "x$withval" = on \
|| test "x$withval" = true
then
try_popt=yes
require_popt=yes
fi
])dnl
])dnl
AC_MSG_CHECKING([whether popt is required])
AC_MSG_RESULT([${require_popt}])
if test "$require_popt" != yes; then
AC_MSG_CHECKING([whether popt is requested])
AC_MSG_RESULT([${try_popt}])
fi
dnl Implicit AC_SUBST
AC_ARG_VAR([POPT_CFLAGS],[cppflags to compile with libpopt])dnl
AC_ARG_VAR([POPT_LIBS],[location of libpopt to link against])dnl
have_popt=no
if test "x$POPT_CFLAGS" = "x" && test "x$POPT_LIBS" = "x"; then
# try to find options to compile popt.h
CPPFLAGS_save="$CPPFLAGS"
popth_found=no
for popt_prefix in "" /usr /usr/local
do
if test -n "${popt_prefix}"; then
:
elif test -d "${popt_prefix}/include"; then
CPPFLAGS="-I${popt_prefix}/include ${CPPFLAGS}"
else
continue
fi
ac_cv_header_popt_h=""
unset ac_cv_header_popt_h
AC_CHECK_HEADER([popt.h], [popth_found=yes])
if test "$popth_found" = yes; then break; fi
done
CPPFLAGS="$CPPFLAGS_save"
if test "$popth_found" = "yes"; then
if test "$popt_prefix" = ""; then
POPT_CFLAGS=""
else
POPT_CFLAGS="-I${popt_prefix}/include"
fi
else
AC_MSG_ERROR([
* Cannot autodetect popt.h
*
* Set POPT_CFLAGS and POPT_LIBS correctly.
])
fi
# try to find options to link against popt
LDFLAGS_save="$LDFLAGS"
popt_links=no
for popt_prefix in /usr "" /usr/local; do
# We could have "/usr" and "lib64" at the beginning of the
# lists. Then the first tested location would
# incidentally be the right one on 64bit systems, and
# thus work around a bug in libtool on 32bit systems:
#
# 32bit libtool doesn't know about 64bit systems, and so the
# compilation will fail when linking a 32bit library from
# /usr/lib to a 64bit binary.
#
# This hack has been confirmed to workwith a
# 32bit Debian Sarge and 64bit Fedora Core 3 system.
for ldir in lib64 "" lib; do
popt_libdir="${popt_prefix}/${ldir}"
if test "${popt_libdir}" = "/"; then
popt_libdir=""
elif test -d "${popt_libdir}"; then
LDFLAGS="-L${popt_libdir} ${LDFLAGS}"
else
continue
fi
# Avoid caching of results
ac_cv_lib_popt_poptStuffArgs=""
unset ac_cv_lib_popt_poptStuffArgs
AC_CHECK_LIB([popt], [poptStuffArgs], [popt_links=yes])
if test "$popt_links" = yes; then break; fi
done
if test "$popt_links" = yes; then break; fi
done
LDFLAGS="$LDFLAGS_save"
if test "$popt_links" = "yes"; then
if test "$popt_libdir" = ""; then
POPT_LIBS="-lpopt"
else
POPT_LIBS="-L${popt_libdir} -lpopt"
fi
else
AC_MSG_ERROR([
* Cannot autodetect library directory containing popt
*
* Set POPT_CFLAGS and POPT_LIBS correctly.
])
fi
have_popt=yes
elif test "x$POPT_CFLAGS" != "x" && test "x$POPT_LIBS" != "x"; then
# just use the user specivied option
popt_msg="yes (user specified)"
have_popt=yes
else
AC_MSG_ERROR([
* Fatal: Either set both POPT_CFLAGS and POPT_LIBS or neither.
])
fi
AC_MSG_CHECKING([if popt is functional])
if test "$require_popt$have_popt" = "yesno"; then
AC_MSG_RESULT([no, but required])
AC_MSG_ERROR([
* popt library not found
* Fatal: ${PACKAGE_NAME} (${PACKAGE_TARNAME}) requires popt
* Please install it and/or set POPT_CFLAGS and POPT_LIBS.
])
fi
AC_MSG_RESULT([${have_popt}])
GP_CONFIG_MSG([use popt library], [${have_popt}])
if test "$have_popt" = "yes"; then
AC_DEFINE([HAVE_POPT],[1],[whether the popt library is available])
GP_CONFIG_MSG([popt libs],[${POPT_LIBS}])
GP_CONFIG_MSG([popt cppflags],[${POPT_CFLAGS}])
fi
AM_CONDITIONAL([HAVE_POPT],[test "$have_popt" = "yes"])
])dnl
dnl
dnl Please do not remove this:
dnl filetype: 7595380e-eff3-49e5-90ab-e40f1d544639
dnl I use this to find all the different instances of this file which
dnl are supposed to be synchronized.
dnl
dnl Local Variables:
dnl mode: autoconf
dnl End:
|
