alberta-check.m4

dnl
dnl Check for ALBERTA libraries at given dimension, taking DEBUG
dnl into account. $1 is DIM_OF_WORLD.
dnl
dnl Current style (ALBERTA-2.0): library name is
dnl
dnl libalberta<DOW>[_DEBUG]
dnl

AC_DEFUN([ALBERTA_CHECK],
[AC_REQUIRE([ALBERTA_TYPE_SIZES])
AC_REQUIRE([ALBERTA_OPTIONS])
AC_REQUIRE([ALBERTA_SET_PREFIX])
AC_REQUIRE([ALBERTA_AUX_CHECK])
ALBERTA_CHECK_NEWLIBS($1)
])

dnl
dnl New-style, only DIM_OF_WORLD is fixed.
dnl
dnl DIM_OF_WORLD is passed in $1
dnl 
AC_DEFUN([ALBERTA_CHECK_NEWLIBS],
[
if test "${DEBUG}" = "1"; then
	ALBERTA_LIB_$1=alberta$1_debug
	ALBERTA_LIB_$1_C=ac_cv_lib_ALBERTA$1_DEBUG
else
	ALBERTA_LIB_$1=alberta$1
	ALBERTA_LIB_$1_C=ac_cv_lib_ALBERTA$1
fi
#
AC_CACHE_CHECK([for additional libraries needed to link],
	[ac_cv_libalberta$1_gfxlibs],
	[ac_cv_libalberta$1_gfxlibs=unset
	for GFX_LIBS in	"" \
			"$OPENGL_LIB ${X_LIBS} -lX11" \
			"$GLTOOLS_LIB $OPENGL_LIB ${X_LIBS} -lX11"
	do
	  eval "unset ${ALBERTA_LIB_$1_C}___main"
	  AC_CHECK_LIB($ALBERTA_LIB_$1, main,
	  [ac_cv_libalberta$1_gfxlibs="$GFX_LIBS"
	  break],,
	  [$GFX_LIBS])
	done])

if test "$ac_cv_libalberta$1_gfxlibs" = unset; then
    AC_MSG_ERROR([Unable to link a program with lib$ALBERTA_LIB_$1!])
else
    ALBERTA_LIBS_$1="-L$ALBERTA_LIB_PATH -l$ALBERTA_LIB_$1 $ac_cv_libalberta$1_gfxlibs"
fi
AC_SUBST([ALBERTA_LIBS_$1])
dnl
dnl search for alberta.h header
dnl
AC_CACHE_CHECK(
	[whether alberta.h exist and works with DIM_OF_WORLD=$1],
	[ac_cv_header_alberta$1_h],
	[ac_alberta_save_CPPFLAGS="$CPPFLAGS"
	unset ac_cv_header_alberta_h
	CPPFLAGS="-DDIM_OF_WORLD=$1 -I$ALBERTA_INCLUDE_PATH $CPPFLAGS"
	AC_CHECK_HEADERS(alberta.h,
		[unset ac_cv_header_alberta_h
		ac_cv_header_alberta$1_h=yes],
		[ac_cv_header_alberta$1_h=no
		AC_MSG_ERROR([Header file "alberta.h" not found])])
	CPPFLAGS="$ac_alberta_save_CPPFLAGS"
	])
	if test $ac_cv_header_alberta$1_h = yes; then
		AC_DEFINE([HAVE_ALBERTA$1_H], 1,