# -*- tab-width: 4; -*-

# Configure paths for NSPR

# Public domain - Chris Seawood <cls@seawood.org> 2001-04-05

# Based upon gtk.m4 (also PD) by Owen Taylor

dnl AM_PATH_NSPR([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])

dnl Test for NSPR, and define NSPR_CFLAGS and NSPR_LIBS

dnl

dnl If the nspr-config script is available, use it to find the

dnl appropriate CFLAGS and LIBS, and to check for the required

dnl version, and run ACTION-IF-FOUND.

dnl

dnl Otherwise, if NO_NSPR_CONFIG_SYSTEM_VERSION is set, we use it,

dnl NO_NSPR_CONFIG_SYSTEM_CFLAGS, and NO_NSPR_CONFIG_SYSTEM_LIBS to

dnl provide default values, and run ACTION-IF-FOUND.  (Some systems

dnl ship NSPR without nspr-config, but can glean the appropriate flags

dnl and version.)

dnl

dnl Otherwise, run ACTION-IF-NOT-FOUND.

AC_DEFUN([AM_PATH_NSPR],

[dnl

AC_ARG_WITH(nspr-prefix,

	[  --with-nspr-prefix=PFX  Prefix where NSPR is installed],

	nspr_config_prefix="$withval",

	nspr_config_prefix="")

AC_ARG_WITH(nspr-exec-prefix,

	[  --with-nspr-exec-prefix=PFX

                          Exec prefix where NSPR is installed],

	nspr_config_exec_prefix="$withval",

	nspr_config_exec_prefix="")

	if test -n "$nspr_config_exec_prefix"; then

		nspr_config_args="$nspr_config_args --exec-prefix=$nspr_config_exec_prefix"

		if test -z "$NSPR_CONFIG"; then

			NSPR_CONFIG=$nspr_config_exec_prefix/bin/nspr-config

		fi

	fi

	if test -n "$nspr_config_prefix"; then

		nspr_config_args="$nspr_config_args --prefix=$nspr_config_prefix"

		if test -z "$NSPR_CONFIG"; then

			NSPR_CONFIG=$nspr_config_prefix/bin/nspr-config

		fi

	fi

	unset ac_cv_path_NSPR_CONFIG

	AC_PATH_PROG(NSPR_CONFIG, nspr-config, no)

	min_nspr_version=ifelse([$1], ,4.0.0,$1)

	AC_MSG_CHECKING(for NSPR - version >= $min_nspr_version)

	no_nspr=""

	if test "$NSPR_CONFIG" != "no"; then

		NSPR_CFLAGS=`$NSPR_CONFIG $nspr_config_args --cflags`

		NSPR_LIBS=`$NSPR_CONFIG $nspr_config_args --libs`

		NSPR_VERSION_STRING=`$NSPR_CONFIG $nspr_config_args --version`	

	elif test -n "${NO_NSPR_CONFIG_SYSTEM_VERSION}"; then

	    NSPR_CFLAGS="${NO_NSPR_CONFIG_SYSTEM_CFLAGS}"

		NSPR_LIBS="${NO_NSPR_CONFIG_SYSTEM_LDFLAGS}"

		NSPR_VERSION_STRING="$NO_NSPR_CONFIG_SYSTEM_VERSION"

	else

	    no_nspr="yes"

	fi

	if test -z "$no_nspr"; then

		nspr_config_major_version=`echo $NSPR_VERSION_STRING | \

			sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\(\.\([[0-9]]*\)\)\{0,1\}/\1/'`

		nspr_config_minor_version=`echo $NSPR_VERSION_STRING | \

			sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\(\.\([[0-9]]*\)\)\{0,1\}/\2/'`

		nspr_config_micro_version=`echo $NSPR_VERSION_STRING | \

			sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\(\.\([[0-9]]*\)\)\{0,1\}/\4/'`

		if test -z "$nspr_config_micro_version"; then

			nspr_config_micro_version="0"

		fi

		min_nspr_major_version=`echo $min_nspr_version | \

			sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\(\.\([[0-9]]*\)\)\{0,1\}/\1/'`

		min_nspr_minor_version=`echo $min_nspr_version | \

			sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\(\.\([[0-9]]*\)\)\{0,1\}/\2/'`

		min_nspr_micro_version=`echo $min_nspr_version | \

			sed 's/\([[0-9]]*\)\.\([[0-9]]*\)\(\.\([[0-9]]*\)\)\{0,1\}/\4/'`

		if test -z "$min_nspr_micro_version"; then

			min_nspr_micro_version="0"

		fi

		if test "$nspr_config_major_version" -ne "$min_nspr_major_version"; then

			no_nspr="yes"

		elif test "$nspr_config_major_version" -eq "$min_nspr_major_version" &&

		     test "$nspr_config_minor_version" -lt "$min_nspr_minor_version"; then

			no_nspr="yes"

		elif test "$nspr_config_major_version" -eq "$min_nspr_major_version" &&

		     test "$nspr_config_minor_version" -eq "$min_nspr_minor_version" &&

		     test "$nspr_config_micro_version" -lt "$min_nspr_micro_version"; then

			no_nspr="yes"

		fi

	fi

	if test -z "$no_nspr"; then

		AC_MSG_RESULT(yes)

		ifelse([$2], , :, [$2])     

	else

		AC_MSG_RESULT(no)

		ifelse([$3], , :, [$3])

	fi

	AC_SUBST_LIST(NSPR_CFLAGS)

	AC_SUBST_LIST(NSPR_LIBS)

])