Il 22/03/2012 09:30, Tristan Gingold ha scritto: > Hi, > > this is version 2 of the patch. > > The initial problem is that libgfortran configure.ac used AC_CHECK_LIB([m]…) > to check wether several math functions are available. That doesn't work on > VMS, because there is no such things as a libm. > > It seems to me that there are no autoconf macro to check wether a function is > available: AC_CHECK_FUNC[S] don't allow to specify additional include files > (necessary on VMS as some math functions are renamed through macros), and > AC_CHECK_DECL only checks the presence of the declaration (as pointed out by > Ralf). > > So I have finally learnt a little bit more about autoconf and added a new > file: config/math.m4 (build machinery maintainer cc:) > libgfortran/configure.ac now uses the new GCC_CHECK_MATH_FUNC macro. > > Bootstrapped without gfortran regressions on x86_64-darwin. > > Ok for trunk ? > > (I will submit a follow-up change in libquadmath once this change is > approved). > > Tristan. > > config/ > 2012-03-22 Tristan Gingold <ging...@adacore.com> > > * math.m4: New file. > > libgfortran/ > 2012-03-22 Tristan Gingold <ging...@adacore.com> > > * configure.ac: Use GCC_CHECK_MATH_FUNC for math functions. > * acinclude.m4: Include ../config/math.m4 > * configure: Regenerate. > * Makefile.in: Regenerate.
Ok.
