+2003-07-04 Alexandre Duret-Lutz <adl@gnu.org>
+
+ * lib/depcomp (icc): Update to grok ICC 7.1's output.
+ * m4/depend.m4 (_AM_DEPENDENCIES): Check dependency generation
+ in a subdirectory, and with many dependencies. This
+ catches more failures of depcomp.
+ Reports from Ralf Wildenhues and Akim Demaille.
+
2003-07-04 Akim Demaille <akim@epita.fr>
* automake.in (&scan_texinfo_file, &output_texinfo_build_rules,
Rafael Laboissiere laboissiere@psy.mpg.de
Raja R Harinath harinath@cs.umn.edu
Ralf Corsepius corsepiu@faw.uni-ulm.de
+Ralf Wildenhues Ralf.Wildenhues@gmx.de
Ralph Schleicher rs@purple.UL.BaWue.DE
Ramón García Fernández ramon@jl1.quim.ucm.es
Rich Wales richw@webcom.com
;;
icc)
- # Must come before tru64.
-
- # Intel's C compiler understands `-MD -MF file'. However
+ # Intel's C compiler understands `-MD -MF file'. However on
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
- # will fill foo.d with something like
+ # ICC 7.0 will fill foo.d with something like
# foo.o: sub/foo.c
# foo.o: sub/foo.h
# which is wrong. We want:
# sub/foo.o: sub/foo.h
# sub/foo.c:
# sub/foo.h:
+ # ICC 7.1 will output
+ # foo.o: sub/foo.c sub/foo.h
+ # and will wrap long lines using \ :
+ # foo.o: sub/foo.c ... \
+ # sub/foo.h ... \
+ # ...
"$@" -MD -MF "$tmpdepfile"
stat=$?
exit $stat
fi
rm -f "$depfile"
- # Each line is of the form `foo.o: dependent.h'.
+ # Each line is of the form `foo.o: dependent.h',
+ # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
- sed -e "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
- sed -e "s,^[^:]*: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
+ sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+ # Some versions of the HPUX 10.20 sed can't process this invocation
+ # correctly. Breaking it into two sed invocations is a workaround.
+ sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
+ sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
fi
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
- # That's a space and a tab in the [].
+ # That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
# using a relative directory.
cp "$am_depcomp" conftest.dir
cd conftest.dir
+ # We will build objects and dependencies in a subdirectory because
+ # it helps to detect inapplicable dependency modes. For instance
+ # both Tru64's cc and ICC support -MD to output dependencies as a
+ # side effect of compilation, but ICC will put the dependencies in
+ # the current directory while Tru64 will put them in the object
+ # directory.
+ mkdir sub
am_cv_$1_dependencies_compiler_type=none
if test "$am_compiler_list" = ""; then
am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
fi
for depmode in $am_compiler_list; do
+ # Setup a source with many dependencies, because some compilers
+ # like to wrap large dependency lists on column 80 (with \), and
+ # we should not choose a depcomp mode which is confused by this.
+ #
# We need to recreate these files for each test, as the compiler may
# overwrite some of them when testing with obscure command lines.
# This happens at least with the AIX C compiler.
- echo '#include "conftest.h"' > conftest.c
- echo 'int i;' > conftest.h
- echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf
+ : > sub/conftest.c
+ for i in 1 2 3 4 5 6; do
+ echo '#include "conftst'$i'.h"' >> sub/conftest.c
+ : > sub/conftst$i.h
+ done
+ echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
case $depmode in
nosideeffect)
# mode. It turns out that the SunPro C++ compiler does not properly
# handle `-M -o', and we need to detect this.
if depmode=$depmode \
- source=conftest.c object=conftest.o \
- depfile=conftest.Po tmpdepfile=conftest.TPo \
- $SHELL ./depcomp $depcc -c -o conftest.o conftest.c \
+ source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+ depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+ $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
>/dev/null 2>conftest.err &&
- grep conftest.h conftest.Po > /dev/null 2>&1 &&
+ grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+ grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
${MAKE-make} -s -f confmf > /dev/null 2>&1; then
# icc doesn't choke on unknown options, it will just issue warnings
# (even with -Werror). So we grep stderr for any message