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Improve definition of CYIsClass using meta classes.
[cycript.git] / framework.m4
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c823f118 1# AC_CHECK_FRAMEWORK(FRAMEWORK, PROLOGUE, BODY,
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2# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
3# [OTHER-LIBRARIES])
4# ------------------------------------------------------
5#
6# Use a cache variable name containing both the framework and function name,
7# because the test really is for framework $1 defining function $2, not
8# just for framework $1. Separate tests with the same $1 and different $2s
9# may have different results.
10#
c823f118 11# Note that using directly AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])
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12# is asking for troubles, since AC_CHECK_FRAMEWORK($framework, fun) would give
13# ac_cv_framework_$framework_fun, which is definitely not what was meant. Hence
14# the AS_LITERAL_IF indirection.
15#
16# FIXME: This macro is extremely suspicious. It DEFINEs unconditionally,
17# whatever the FUNCTION, in addition to not being a *S macro. Note
18# that the cache does depend upon the function we are looking for.
19#
20# It is on purpose we used `ac_check_framework_save_LIBS' and not just
21# `ac_save_LIBS': there are many macros which don't want to see `LIBS'
22# changed but still want to use AC_CHECK_FRAMEWORK, so they save `LIBS'.
23# And ``ac_save_LIBS' is too tempting a name, so let's leave them some
24# freedom.
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25AC_DEFUN([AC_CHECK_FRAMEWORK], [
26 m4_ifval([$4], , [AH_CHECK_FRAMEWORK([$1])])dnl
27 AS_LITERAL_IF([$1], [AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])],
28 [AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1''])]
29 )dnl
30 AC_CACHE_CHECK([for framework $1], ac_Framework, [
31 ac_check_framework_save_LIBS=$LIBS
32 LIBS="-framework $1 $6 $LIBS"
33 AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])],[
34 AS_VAR_SET(ac_Framework, yes)
35 ], [AS_VAR_SET(ac_Framework, no)])
36 LIBS=$ac_check_framework_save_LIBS]
37 )
38 AS_IF([test AS_VAR_GET(ac_Framework) = yes], [
39 AC_LIB_APPENDTOVAR([LIBS], ["-framework $1 $LIBS"])
40 m4_default([$4], [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_FRAMEWORK_$1))])
41 ], [$5])dnl
42 AS_VAR_POPDEF([ac_Framework])dnl
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43])# AC_CHECK_FRAMEWORK
44
45# AH_CHECK_FRAMEWORK(FRAMEWORK)
46# ---------------------
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47m4_define([AH_CHECK_FRAMEWORK], [
48 AH_TEMPLATE(AS_TR_CPP(HAVE_FRAMEWORK_$1),
49 [Define to 1 if you have the `]$1[' framework (-framework ]$1[).]
50)])