5973
5973
])# PKG_PROG_PKG_CONFIG
5975
# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
5977
# Check to see whether a particular set of modules exists. Similar
5978
# to PKG_CHECK_MODULES(), but does not set variables or print errors.
5981
# Similar to PKG_CHECK_MODULES, make sure that the first instance of
5982
# this or PKG_CHECK_MODULES is called, or make sure to call
5983
# PKG_CHECK_EXISTS manually
5984
# --------------------------------------------------------------
5985
AC_DEFUN([PKG_CHECK_EXISTS],
5986
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
5987
if test -n "$PKG_CONFIG" && \
5988
AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
5989
m4_ifval([$2], [$2], [:])
5990
m4_ifvaln([$3], [else
5975
5995
# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
5976
5996
# ---------------------------------------------
5977
5997
m4_define([_PKG_CONFIG],
5978
[if test "x$ac_cv_env_[]$1[]_set" = "xset"; then
5979
pkg_cv_[]$1=$ac_cv_env_[]$1[]_value
5980
elif test -n "$PKG_CONFIG"; then
5981
if AC_RUN_LOG([$PKG_CONFIG --exists "$3" >/dev/null 2>&1]); then
5982
pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
5998
[if test -n "$PKG_CONFIG"; then
5999
PKG_CHECK_EXISTS([$3],
6000
[pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
5987
6003
pkg_failed=untried
5995
6011
# Note that if there is a possibility the first call to
5996
6012
# PKG_CHECK_MODULES might not happen, you should be sure to include an
5997
# explicit call to PKG_PROG_PKG_CONFIG in your configure.in
6013
# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
6000
6016
# --------------------------------------------------------------
6004
6020
AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
6007
AC_CACHE_CHECK([for $1][_CFLAGS], [pkg_cv_][$1][_CFLAGS],
6008
[_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])])
6009
AC_CACHE_CHECK([for $1][_LIBS], [pkg_cv_][$1][_LIBS],
6010
[_PKG_CONFIG([$1][_LIBS], [libs], [$2])])
6023
AC_MSG_CHECKING([for $1])
6025
_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
6026
_PKG_CONFIG([$1][_LIBS], [libs], [$2])
6012
6028
if test $pkg_failed = yes; then
6013
6029
$1[]_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`