Source: libquantum Version: 1.1.1-5 Tags: patch upstream User: debian-cr...@lists.debian.org Usertags: ftcbfs
libquantum fails to cross build from source, because it uses AC_RUN_IFELSE. In some situations, that macro is unavoidable. The use of libquantum isn't, because it is evaluating a compile-time constant. We can also check that using AC_CHECK_SIZEOF and AC_COMPUTE_INT, both of which work during cross compilation. Please consider applying the attached patch to avoid using AC_RUN_IFELSE at no cost in functionality. Helmut
--- libquantum-1.1.1.orig/configure.in +++ libquantum-1.1.1/configure.in @@ -96,11 +96,15 @@ AC_MSG_ERROR([No complex number type!]) fi +AC_CHECK_SIZEOF([double]) +AC_COMPUTE_INT([SIZEOF_CF_TYPE],[sizeof($CF_TYPE)]) +SIZEOF_2DOUBLE=`expr $ac_cv_sizeof_double + $ac_cv_sizeof_double` + AC_MSG_CHECKING([for corresponding real data type]) -AC_RUN_IFELSE( - [AC_LANG_PROGRAM([], [return sizeof($CF_TYPE) == 2*sizeof(double)])], - [RF_TYPE="float"], - [RF_TYPE="double"; AC_DEFINE(USE_DOUBLE)], [float]) +AS_IF( + [test "$SIZEOF_2DOUBLE" = "$SIZEOF_CF_TYPE"], + [RF_TYPE="double"; AC_DEFINE(USE_DOUBLE)], + [RF_TYPE="float"]) AC_MSG_RESULT($RF_TYPE)
