Fortran compiler blacklist
Patrick Welche <[email protected]>
| Newsgroups | gmane.comp.sysutils.autoconf.patches |
|---|---|
| Message-ID | <[email protected]> |
The attached patch adds a white-space separated list of Fortran compilers
whose existence should be ignored to AC_PROG_{FC,F77}.
(There may be better ways of implementing this!)
The problem I encountered was that the first available compiler on
the checklist was unable to compile a particular program. The
current options to work around this are:
- look for another compiler on the system and set FC
- add a list of compilers to try without the problematic one as the first
argument to AC_PROG_FC
I was looking for an option of the form "I don't know what other compilers
are on this system, I just know that foo95 doesn't work in this case".
If this is deemed to be a good idea, would a --with{,out}-fortran-compilers
option by desirable to manipulate arguments 1 and 3 to AC_PROG_FC more
easily for a configure user?
Cheers,
Patrick
0001-fortran.m4-add-list-of-Fortran-compilers-to-ignore-a.patch
(text/plain, 4.5 KB)
From 27196e1aa3a661447d2404fa0266e2b524d8153f Mon Sep 17 00:00:00 2001 From: Patrick Welche <[email protected]> Date: Mon, 17 Jun 2013 09:55:47 +0100 Subject: [PATCH] fortran.m4: add list of Fortran compilers to ignore as argument to AC_PROG_{FC,F77} --- doc/autoconf.texi | 13 +++++++++++-- lib/autoconf/fortran.m4 | 15 ++++++++++----- 2 files changed, 21 insertions(+), 7 deletions(-) diff --git a/doc/autoconf.texi b/doc/autoconf.texi index faf6d97..95beb10 100644 --- a/doc/autoconf.texi +++ b/doc/autoconf.texi @@ -7870,7 +7870,7 @@ Except for the macros @code{AC_FC_SRCEXT}, @code{AC_FC_FREEFORM}, are documented together in this section. -@defmac AC_PROG_F77 (@ovar{compiler-search-list}) +@defmac AC_PROG_F77 (@ovar{compiler-search-list}, @ovar{rejected-compiler-list}) @acindex{PROG_F77} @evindex F77 @evindex FFLAGS @@ -7883,6 +7883,10 @@ set in the environment, then check for @code{g77} and @code{f77}, and then some other names. Set the output variable @code{F77} to the name of the compiler found. +The optional second argument to the macro is a blank-separated list of +Fortran 77 compilers whose presence should be ignored and are omitted +from the search. + This macro may, however, be invoked with an optional first argument which, if specified, must be a blank-separated list of Fortran 77 compilers to search for. This just gives the user an opportunity to @@ -7906,7 +7910,8 @@ The result of the GNU test is cached in the @code{ac_cv_prog_f77_g} variable. @end defmac -@defmac AC_PROG_FC (@ovar{compiler-search-list}, @ovar{dialect}) +@defmac AC_PROG_FC (@ovar{compiler-search-list}, @ovar{dialect}, @ + @ovar{rejected-compiler-list}) @acindex{PROG_FC} @evindex FC @evindex FCFLAGS @@ -7930,6 +7935,10 @@ is actually supported. Thus, it is preferable that you avoid the @code{dialect} option, and use AC_PROG_FC only for code compatible with the latest Fortran standard. +The optional third argument to the macro is a blank-separated list of +Fortran compilers whose presence should be ignored and are omitted +from the search. + This macro may, alternatively, be invoked with an optional first argument which, if specified, must be a blank-separated list of Fortran compilers to search for, just as in @code{AC_PROG_F77}. diff --git a/lib/autoconf/fortran.m4 b/lib/autoconf/fortran.m4 index f20b029..2354e0a 100644 --- a/lib/autoconf/fortran.m4 +++ b/lib/autoconf/fortran.m4 @@ -285,7 +285,7 @@ AC_DEFUN([_AC_FC_DIALECT_YEAR], [m4_fatal([unknown Fortran dialect])])]) -# _AC_PROG_FC([DIALECT], [COMPILERS...]) +# _AC_PROG_FC([DIALECT], [COMPILERS...], [REJECTED_COMPILERS...]) # -------------------------------------- # DIALECT is a Fortran dialect, given by Fortran [YY]YY or simply [YY]YY, # and must be one of those supported by _AC_FC_DIALECT_YEAR @@ -322,6 +322,11 @@ m4_define([_AC_F90_FC], [xlf90 f90 pgf90 pghpf epcf90]) m4_define([_AC_F77_FC], [g77 xlf f77 frt pgf77 cf77 fort77 fl32 af77]) AC_DEFUN([_AC_PROG_FC], [_AC_FORTRAN_ASSERT()dnl +m4_foreach_w([_AC_FC_rejcomp], [$3], [ +m4_define([_AC_F95_FC],m4_bpatsubst(m4_defn([_AC_F95_FC]),\<_AC_FC_rejcomp\>)) +m4_define([_AC_F90_FC],m4_bpatsubst(m4_defn([_AC_F90_FC]),\<_AC_FC_rejcomp\>)) +m4_define([_AC_F77_FC],m4_bpatsubst(m4_defn([_AC_F77_FC]),\<_AC_FC_rejcomp\>)) +]) AC_CHECK_TOOLS([]_AC_FC[], m4_default([$2], m4_case(_AC_FC_DIALECT_YEAR([$1]), @@ -351,7 +356,7 @@ _AC_PROG_FC_G ])# _AC_PROG_FC -# AC_PROG_F77([COMPILERS...]) +# AC_PROG_F77([COMPILERS...], [REJECTED_COMPILERS...]) # --------------------------- # COMPILERS is a space separated list of Fortran 77 compilers to search # for. See also _AC_PROG_FC. @@ -361,7 +366,7 @@ AC_ARG_VAR([F77], [Fortran 77 compiler command])dnl AC_ARG_VAR([FFLAGS], [Fortran 77 compiler flags])dnl _AC_ARG_VAR_LDFLAGS()dnl _AC_ARG_VAR_LIBS()dnl -_AC_PROG_FC([Fortran 77], [$1]) +_AC_PROG_FC([Fortran 77], [$1], [$2]) if test $ac_compiler_gnu = yes; then G77=yes else @@ -371,7 +376,7 @@ AC_LANG_POP(Fortran 77)dnl ])# AC_PROG_F77 -# AC_PROG_FC([COMPILERS...], [DIALECT]) +# AC_PROG_FC([COMPILERS...], [DIALECT], [REJECTED_COMPILERS...]) # ------------------------------------- # COMPILERS is a space separated list of Fortran 77 compilers to search # for, and [DIALECT] is an optional dialect. See also _AC_PROG_FC. @@ -381,7 +386,7 @@ AC_ARG_VAR([FC], [Fortran compiler command])dnl AC_ARG_VAR([FCFLAGS], [Fortran compiler flags])dnl _AC_ARG_VAR_LDFLAGS()dnl _AC_ARG_VAR_LIBS()dnl -_AC_PROG_FC([$2], [$1]) +_AC_PROG_FC([$2], [$1], [$3]) if test $ac_compiler_gnu = yes; then GFC=yes else -- 1.8.2.3