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-rw-r--r--configure.in12
1 files changed, 11 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index 0c9fb87c8e..b8bb3b0332 100644
--- a/configure.in
+++ b/configure.in
@@ -502,7 +502,17 @@ AC_STRUCT_ST_RDEV
dnl Checks for library functions.
AC_TYPE_GETGROUPS
AC_TYPE_SIGNAL
-AC_FUNC_ALLOCA
+case "${target_cpu}-${target_os}" in
+powerpc-darwin*)
+ AC_LIBSOURCES(alloca.c)
+ AC_SUBST([ALLOCA], [\${LIBOBJDIR}alloca.${ac_objext}])
+ AC_DEFINE(C_ALLOCA)
+ AC_DEFINE_UNQUOTED(alloca, alloca)
+ ;;
+*)
+ AC_FUNC_ALLOCA
+ ;;
+esac
AC_FUNC_MEMCMP
AC_FUNC_FSEEKO
AC_CHECK_FUNCS(ftello)