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| -rw-r--r-- | m4/xc-am-iface.m4 | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/m4/xc-am-iface.m4 b/m4/xc-am-iface.m4 new file mode 100644 index 000000000..852d6e04c --- /dev/null +++ b/m4/xc-am-iface.m4 @@ -0,0 +1,75 @@ +#--------------------------------------------------------------------------- +# +# xc-am-iface.m4 +# +# Copyright (c) 2013 Daniel Stenberg <daniel@haxx.se> +# +# Permission to use, copy, modify, and distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +# +#--------------------------------------------------------------------------- + +# serial 1 + + +dnl _XC_AUTOMAKE_BODY +dnl ------------------------------------------------- +dnl Private macro. +dnl +dnl This macro performs embedding of automake initialization +dnl code into configure script. When automake version 1.14 or +dnl newer is used at configure script generation time, this +dnl results in 'subdir-objects' automake option being used. +dnl When using automake versions older than 1.14 this option +dnl is not used when generating configure script. + +m4_define([_XC_AUTOMAKE_BODY], +[dnl +## --------------------------------------- ## +## Start of automake initialization code ## +## --------------------------------------- ## +m4_ifdef([_AM_PROG_CC_C_O], +[ +AM_INIT_AUTOMAKE([subdir-objects]) +],[ +AM_INIT_AUTOMAKE +])dnl +## ------------------------------------- ## +## End of automake initialization code ## +## ------------------------------------- ## +dnl +m4_define([$0], [])[]dnl +]) + + +dnl XC_AUTOMAKE +dnl ------------------------------------------------- +dnl Public macro. +dnl +dnl This macro embeds automake machinery into configure +dnl script with initialization option 'subdir-objects' +dnl when using automake version 1.14 or newer. + +AC_DEFUN([XC_AUTOMAKE], +[dnl +AC_PREREQ([2.50])dnl +dnl +AC_BEFORE([$0],[AM_INIT_AUTOMAKE])dnl +dnl +_XC_AUTOMAKE_BODY +dnl +m4_ifdef([AM_INIT_AUTOMAKE], + [m4_undefine([AM_INIT_AUTOMAKE])])dnl +dnl +m4_define([$0], [])[]dnl +]) + |