48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
dnl ######################################################################
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dnl check if a map exists (if some library function exists).
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dnl Usage: AC_CHECK_MAP_FUNCS(<functions>..., <map>, [<mapsymbol>])
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dnl Check if any of the functions <functions> exist. If any exist, then
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dnl define HAVE_MAP_<map>. If <mapsymbol> exits, then defined
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dnl HAVE_MAP_<mapsymbol> instead...
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AC_DEFUN(AMU_CHECK_MAP_FUNCS,
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[
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# find what name to give to the map
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if test -n "$3"
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then
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ac_map_name=$3
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else
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ac_map_name=$2
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fi
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# store variable name of map
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ac_upcase_map_name=`echo $2 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
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ac_safe=HAVE_MAP_$ac_upcase_map_name
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# check for cache and set it if needed
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AMU_CACHE_CHECK_DYNAMIC(for $ac_map_name maps,
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ac_cv_map_$ac_map_name,
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[
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# define to "no" by default
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eval "ac_cv_map_$ac_map_name=no"
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# and look to see if it was found
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AC_CHECK_FUNCS($1,
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[
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eval "ac_cv_map_$ac_map_name=yes"
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break
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])])
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# check if need to define variable
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if test "`eval echo '$''{ac_cv_map_'$ac_map_name'}'`" = yes
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then
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AC_DEFINE_UNQUOTED($ac_safe)
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# append info_<map>.o object to AMD_INFO_OBJS for automatic compilation
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# if first time we add something to this list, then also tell autoconf
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# to replace instances of it in Makefiles.
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if test -z "$AMD_INFO_OBJS"
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then
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AMD_INFO_OBJS="info_${ac_map_name}.o"
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AC_SUBST(AMD_INFO_OBJS)
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else
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AMD_INFO_OBJS="$AMD_INFO_OBJS info_${ac_map_name}.o"
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fi
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fi
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])
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dnl ======================================================================
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