diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 221b839..f46e260 100644 --- a/configure.ac +++ b/configure.ac @@ -18,6 +18,18 @@ fi AC_MSG_RESULT(${CC_FOR_BUILD}) AC_SUBST(CC_FOR_BUILD) +AC_MSG_CHECKING([for __attribute__((__alias__()))]) +dash_cv_have_attribute_alias=no +AC_LINK_IFELSE([AC_LANG_PROGRAM([void t() {} + void a() __attribute__((__alias__("t")));], + [a();])], + [dash_cv_have_attribute_alias=yes]) +AC_MSG_RESULT($dash_cv_have_attribute_alias) +if test "x$dash_cv_have_attribute_alias" = xyes; then + AC_DEFINE([HAVE_ALIAS_ATTRIBUTE], 1, + [Define if __attribute__((__alias__())) is supported]) +fi + AC_ARG_ENABLE(static, AS_HELP_STRING(--enable-static, \ [Build statical linked program])) if test "$enable_static" = "yes"; then @@ -60,6 +72,9 @@ AC_CHECK_FUNC(stat64,, [ AC_DEFINE(fstat64, fstat, [64-bit operations are the same as 32-bit]) AC_DEFINE(lstat64, lstat, [64-bit operations are the same as 32-bit]) AC_DEFINE(stat64, stat, [64-bit operations are the same as 32-bit]) +]) + +AC_CHECK_FUNC(open64,, [ AC_DEFINE(open64, open, [64-bit operations are the same as 32-bit]) ]) |