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Top-level configury
- From: FX <fxcoudert at gmail dot com>
- To: GCC Development <gcc at gcc dot gnu dot org>
- Date: Sat, 7 Jun 2014 13:24:46 +0200
- Subject: Top-level configury
- Authentication-results: sourceware.org; auth=none
Top-level configure has two quadmath-related options: --disable-libquadmath and --disable-libquadmath-support . The first disables the building of libquadmath itself, the second disables quadmath support in the Fortran front-end. They are currently independent, but it would make a lot of sense for --disable-libquadmath to imply --disable-libquadmath-support, unless —enable-libquadmath-support is explicitly stated: Fortran front-end support without libquadmath will be truly useless, and the current situation is confusing to users (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55601).
However, my build/configure-foo is lacking, so I don’t know to achieve this. I’ve tried the code below… is it how this is supposed to work?
Thanks in advance to any build/configure maintainer who can give me a hand with this!
Index: configure.ac
===================================================================
--- configure.ac (revision 211315)
+++ configure.ac (working copy)
@@ -411,7 +411,9 @@ AS_HELP_STRING([--disable-libquadmath-su
ENABLE_LIBQUADMATH_SUPPORT=$enableval,
ENABLE_LIBQUADMATH_SUPPORT=yes)
enable_libquadmath_support=
-if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ; then
+if test "${ENABLE_LIBQUADMATH_SUPPORT}" = "no" ||
+ ( test "${ENABLE_LIBQUADMATH_SUPPORT}" = "" &&
+ test "${ENABLE_LIBQUADMATH}" = "no" ) ; then
enable_libquadmath_support=no
fi