Akim Demaille <[EMAIL PROTECTED]> writes:
> Meanwhile, I OK your patch.
Thanks. I've got an updated version attached below, with the only
additions that AC_OBJEXT is called before AC_EXEEXT in AC_PROG_CC,
AC_PROG_CXX and AC_PROG_F77 (AC_EXEEXT uses $ac_objext).
> I'd accept patches that do what you suggest too: have _AC_EXEEXT be
> independent from AC_LINK_IFELSE, have AC_LINK|COMPILE_IFELSE require
> what they need, [...]
I looked at the code, but the macros that does the various compiler
checks doesn't look "ready" for this change -- in particular, it looks
hard to do the necessary changes without breaking the newly introduced
AC_NO_EXECUTABLES hack.
So I'm afraid I'll leave that mess alone for now. :^/
Regards,
Morten
2000-08-30 Morten Eriksen <[EMAIL PROTECTED]>
* acspecific.m4: _AC_OBJEXT was using AC_COMPILE_IFELSE, but
AC_COMPILE_IFELSE depends on the value of $ac_objext. This
dependency deadlock is broken by making _AC_OBJEXT independent
of AC_COMPILE_IFELSE.
* aclang.m4: _AC_EXEEXT depends on the value of $ac_objext, so
run _AC_OBJEXT before _AC_EXEEXT. Also fixes a miniscule typo.
? all.diff
Index: aclang.m4
===================================================================
RCS file: /cvs/autoconf/aclang.m4,v
retrieving revision 1.59
diff -u -r1.59 aclang.m4
--- aclang.m4 2000/09/05 09:14:10 1.59
+++ aclang.m4 2000/09/06 10:13:07
@@ -238,7 +238,7 @@
# AC_LANG_CONFTEST(BODY)
# ---------------------
-# Save the BODY in `conftest.$acext'. Add a trailing new line.
+# Save the BODY in `conftest.$ac_ext'. Add a trailing new line.
define([AC_LANG_CONFTEST],
[cat >conftest.$ac_ext <<_ACEOF
$1
@@ -610,8 +610,8 @@
_AC_LANG_COMPILER_WORKS
_AC_PROG_CC_GNU
_AC_PROG_CC_G
-AC_EXPAND_ONCE([_AC_EXEEXT])
AC_EXPAND_ONCE([_AC_OBJEXT])
+AC_EXPAND_ONCE([_AC_EXEEXT])
AC_LANG_POP
])# AC_PROG_CC
@@ -802,8 +802,8 @@
_AC_LANG_COMPILER_WORKS
_AC_PROG_CXX_GNU
_AC_PROG_CXX_G
-AC_EXPAND_ONCE([_AC_EXEEXT])
AC_EXPAND_ONCE([_AC_OBJEXT])
+AC_EXPAND_ONCE([_AC_EXEEXT])
AC_LANG_POP
])# AC_PROG_CXX
@@ -901,9 +901,8 @@
_AC_LANG_COMPILER_WORKS
_AC_PROG_F77_GNU
_AC_PROG_F77_G
-
-AC_EXPAND_ONCE([_AC_EXEEXT])
AC_EXPAND_ONCE([_AC_OBJEXT])
+AC_EXPAND_ONCE([_AC_EXEEXT])
AC_LANG_POP
])# AC_PROG_F77
Index: acspecific.m4
===================================================================
RCS file: /cvs/autoconf/acspecific.m4,v
retrieving revision 1.293
diff -u -r1.293 acspecific.m4
--- acspecific.m4 2000/08/04 09:21:52 1.293
+++ acspecific.m4 2000/09/06 10:13:08
@@ -1586,16 +1586,22 @@
# determined by ac_objext.
define([_AC_OBJEXT],
[AC_CACHE_CHECK([for object suffix], ac_cv_objext,
-[AC_COMPILE_IFELSE([AC_LANG_PROGRAM()],
- [for ac_file in conftest.*; do
- case $ac_file in
- *.$ac_ext) ;;
- *) ac_cv_objext=`echo $ac_file | sed s/conftest.//` ;;
- esac
- done],
- [AC_MSG_ERROR([cannot compile])])])
+[AC_LANG_CONFTEST([AC_LANG_PROGRAM()])
+ if AC_TRY_EVAL(ac_compile); then
+ for ac_file in conftest.*; do
+ case $ac_file in
+ *.$ac_ext) ;;
+ *) ac_cv_objext=`echo $ac_file | sed s/conftest.//` ;;
+ esac
+ done
+ else
+ rm -f conftest.$ac_ext
+ AC_MSG_ERROR([cannot compile])
+ fi
+])
AC_SUBST(OBJEXT, $ac_cv_objext)dnl
ac_objext=$ac_cv_objext
+rm -f conftest.$ac_objext conftest.$ac_ext
])# _AC_OBJEXT
