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configure: Add a compatibility macro for AS_VAR_IF.

This commit is contained in:
Alexandre Julliard 2010-05-19 11:52:47 +02:00
parent b81d08e31c
commit 4ddfba41af
1 changed files with 6 additions and 1 deletions
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7
configure.ac
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@ -11,9 +11,14 @@ AC_CONFIG_SRCDIR(server/atom.c)
AC_CONFIG_HEADERS(include/config.h)
AC_CONFIG_AUX_DIR(tools)
dnl autoconf versions before 2.63b don't have AS_VAR_APPEND
dnl autoconf versions before 2.63b don't have AS_VAR_APPEND or AS_VAR_IF
m4_ifdef([AS_VAR_APPEND],,[as_fn_append () { eval $[1]=\$$[1]\$[2]; }
AC_DEFUN([AS_VAR_APPEND],[as_fn_append $1 $2])])dnl
m4_ifdef([AS_VAR_IF],,[AC_DEFUN([AS_VAR_IF],
[AS_LITERAL_IF([$1],
[AS_IF([test "x$$1" = x""$2], [$3], [$4])],
[eval as_val=\$$1
AS_IF([test "x$as_val" = x""$2], [$3], [$4])])])])dnl
dnl **** Command-line arguments ****