On Mar 22, 2012, at 11:06 AM, Paolo Bonzini wrote: > 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.
Thanks, now committed. Tristan.
