http://gcc.gnu.org/ml/fortran/2011-01/msg00012.html libquadmath now fails to build if makeinfo isn't installed on the system: [...] WARNING: `makeinfo' is missing on your system. You should only need it if you modified a `.texi' or `.texinfo' file, or any other file indirectly affecting the aspect of the manual. The spurious call might also be the consequence of using a buggy `make' (AIX, DU, IRIX). You might want to install the `Texinfo' package or the `GNU make' package. Grab either from any GNU archive site. make[3]: *** [libquadmath.info] Error 1 There is apparently a dependency on libquadmath.info via INFO_DEPS: INFO_DEPS = libquadmath.info > In what way is that different from, say, libgomp? > IIUC makeinfo is required for the development tree. libgomp doesn't fail to build in this configuration. In fact, all components used to build in this configuration (except maybe libjava) up to the patch.
Confirmed. Proposed patch at <http://gcc.gnu.org/ml/gcc-patches/2011-01/msg00316.html>.
Author: rwild Date: Thu Jan 6 22:09:41 2011 New Revision: 168555 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168555 Log: Fix PR fortran/47174 libquadmath/: PR fortran/47174 * Makefile.am (libquadmath.info): Unconditionally override target, not only if BUILD_LIBQUADMATH. * Makefile.in: Regenerate. * configure.ac (AM_INIT_AUTOMAKE): Add -Wno-override option to avoid warning from automake. Modified: trunk/libquadmath/ChangeLog trunk/libquadmath/Makefile.am trunk/libquadmath/Makefile.in trunk/libquadmath/configure.ac
Fixed.