Hello Harald,
On Mon, Oct 24, 2005 at 10:35:25AM +0200, Harald Dunkel wrote:
> It seems that this patch is still not in CVS. And since the
> suggested workaround doesn't workaround I am stuck :-(.
I apologize. I have committed a patch which should fix your problem.
(Attached.)
A question: is there any reason to use rm -f conftst2.*
instead of rm -f conftst2.$ac_objext
Is there any C, Fortran, or F77 compiler which could create other
conftst2.* files if it receives -o conftst2.$ac_objext ?
Have a nice day,
Stepan
2005-10-24 Stepan Kasal <kasal@xxxxxx>
* lib/autoconf/c.m4 (AC_PROG_CC_C_O): Use conftst2.o instead of
conftest.o, to see whether the compiler really obeys; rm the object
file before and after the test and register it with ac_clean_files.
* lib/autoconf/fortran.m4 (_AC_PROG_FC_C_O): Likewise.
Index: lib/autoconf/c.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/c.m4,v
retrieving revision 1.204
diff -u -r1.204 c.m4
--- lib/autoconf/c.m4 19 Oct 2005 22:35:52 -0000 1.204
+++ lib/autoconf/c.m4 24 Oct 2005 10:26:22 -0000
@@ -576,20 +576,24 @@
sed 's/[[^a-zA-Z0-9_]]/_/g;s/^[[0-9]]/_/'`
AC_CACHE_VAL(ac_cv_prog_cc_${ac_cc}_c_o,
[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files conftst2.$ac_objext"
# Make sure it works both with $CC and with simple cc.
# We do the test twice because some compilers refuse to overwrite an
# existing .o file with -o, though they will create one.
-ac_try='$CC -c conftest.$ac_ext -o conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
+ac_try='$CC -c conftest.$ac_ext -o conftst2.$ac_objext >&AS_MESSAGE_LOG_FD'
+rm -f conftst2.$ac_objext
if AC_TRY_EVAL(ac_try) &&
- test -f conftest.$ac_objext && AC_TRY_EVAL(ac_try);
+ test -f conftst2.$ac_objext && AC_TRY_EVAL(ac_try);
then
eval ac_cv_prog_cc_${ac_cc}_c_o=yes
if test "x$CC" != xcc; then
# Test first that cc exists at all.
if AC_TRY_COMMAND(cc -c conftest.$ac_ext >&AS_MESSAGE_LOG_FD); then
- ac_try='cc -c conftest.$ac_ext -o conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
+ ac_try='cc -c conftest.$ac_ext -o conftst2.$ac_objext >&AS_MESSAGE_LOG_FD'
+ rm -f conftst2.$ac_objext
if AC_TRY_EVAL(ac_try) &&
- test -f conftest.$ac_objext && AC_TRY_EVAL(ac_try);
+ test -f conftst2.$ac_objext && AC_TRY_EVAL(ac_try);
then
# cc works too.
:
@@ -602,7 +606,8 @@
else
eval ac_cv_prog_cc_${ac_cc}_c_o=no
fi
-rm -f conftest*
+rm -f conftest* conftst2.$ac_objext
+ac_clean_files=$ac_clean_files_save
])dnl
if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" = yes"; then
AC_MSG_RESULT([yes])
Index: lib/autoconf/fortran.m4
===================================================================
RCS file: /cvsroot/autoconf/autoconf/lib/autoconf/fortran.m4,v
retrieving revision 1.195
diff -u -r1.195 fortran.m4
--- lib/autoconf/fortran.m4 10 Jul 2005 16:02:44 -0000 1.195
+++ lib/autoconf/fortran.m4 24 Oct 2005 10:26:23 -0000
@@ -459,17 +459,22 @@
AC_CACHE_CHECK([whether $[]_AC_FC[] understands -c and -o together],
[ac_cv_prog_[]_AC_LANG_ABBREV[]_c_o],
[AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files conftst2.$ac_objext"
# We test twice because some compilers refuse to overwrite an existing
# `.o' file with `-o', although they will create one.
-ac_try='$[]_AC_FC[] $[]_AC_LANG_PREFIX[]FLAGS -c conftest.$ac_ext -o conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
+ac_try='$[]_AC_FC[] $[]_AC_LANG_PREFIX[]FLAGS -c conftest.$ac_ext -o conftst2.$ac_objext >&AS_MESSAGE_LOG_FD'
+rm -f conftst2.$ac_objext
if AC_TRY_EVAL(ac_try) &&
- test -f conftest.$ac_objext &&
+ test -f conftst2.$ac_objext &&
AC_TRY_EVAL(ac_try); then
ac_cv_prog_[]_AC_LANG_ABBREV[]_c_o=yes
else
ac_cv_prog_[]_AC_LANG_ABBREV[]_c_o=no
fi
-rm -f conftest*])
+rm -f conftest* conftst2.$ac_objext
+ac_clean_files=$ac_clean_files_save
+])
if test $ac_cv_prog_[]_AC_LANG_ABBREV[]_c_o = no; then
AC_DEFINE([]_AC_FC[]_NO_MINUS_C_MINUS_O, 1,
[Define to 1 if your Fortran compiler doesn't accept
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