Il 26/11/2010 23:17, Giulio Paci ha scritto:
> recently I packaged (using autoconf 2.67 on a Debian squeeze system)
> a program that mixes Fortran and C++ code.
>
The problem is also present using the git version.
> The configure.ac includes the following macros:
> AC_PROG_F77
> AC_F77_LIBRARY_LDFLAGS
> AC_F77_DUMMY_MAIN
>
> Everything is working fine with gfortran, but the configure script fails
> to detect proper settings for fort77 (the f2c wrapper).
>
> The macro fails to parse the following output (and then fails to detect
> both the -lf2c -lm flags and the MAIN__ function):
>
> $ f77 -v test.f
> /usr/bin/f77: fort77 Version 1.15
> /usr/bin/f77: Running "/usr/bin/f2c -Nn802 -I. < test.f >
> /tmp/fort77-30492-1.c"
> MAIN main:
> /usr/bin/f77: Running "gcc" "-c" "-o" "test.o" "/tmp/fort77-30492-1.c"
> /usr/bin/f77: unlinking /tmp/fort77-30492-1.c
> /usr/bin/f77: Running "gcc" "test.o" "-lf2c" "-lm"
> /usr/bin/f77: unlinking test.o
>
> $ fort77 -v test.f
> /usr/bin/fort77: fort77 Version 1.15
> /usr/bin/fort77: Running "/usr/bin/f2c -Nn802 -I. < test.f >
> /tmp/fort77-30454-1.c"
> MAIN main:
> /usr/bin/fort77: Running "gcc" "-c" "-o" "test.o" "/tmp/fort77-30454-1.c"
> /usr/bin/fort77: unlinking /tmp/fort77-30454-1.c
> /usr/bin/fort77: Running "gcc" "test.o" "-lf2c" "-lm"
> /usr/bin/fort77: unlinking test.o
>
> Adding manually the following two lines in the configure script:
>
> *"Running \"gcc\""*)
> ac_f77_v_output=`echo "$ac_f77_v_output" | grep "Running \"gcc\"" |
> grep -v '"-c"' | sed 's/^.*Running //' | sed 's/"//g' ` ;;
>
> solves the problem.
> Is it possible to include support for fort77 in the autoconf macros? Is
> there a temporary workaround that I can use in the meantime?
Here is a patch to fix the issue in fortran.m4.
I hope you'll find it useful.
Bests,
Giulio.
*** fortran.m4 2010-12-01 14:51:32.000000000 +0100
--- fortran.m4 2010-12-01 14:40:29.000000000 +0100
*************** case $ac_[]_AC_LANG_ABBREV[]_v_output in
*** 541,546 ****
--- 541,550 ----
s/-ignore *'[[^']]*'/ /g; s/-ignore *\"[[^\"]]*\"/ /g
s/-def *'[[^']]*'/ /g; s/-def *\"[[^\"]]*\"/ /g"` ;;
+ # If we are using fort77 (the f2c wrapper) then filter output and delete quotes.
+ *fort77*gcc*)
+ ac_[]_AC_LANG_ABBREV[]_v_output=`echo "$ac_[]_AC_LANG_ABBREV[]_v_output" | grep '"gcc"' | sed '/"-c"/d; s/^.*"gcc"/"gcc"/; s/"//g' ;;
+
# If we are using Cray Fortran then delete quotes.
*cft90*)
ac_[]_AC_LANG_ABBREV[]_v_output=`echo $ac_[]_AC_LANG_ABBREV[]_v_output | sed 's/"//g'` ;;
