Re: Mac OS X Leopard and conftest.dSYM directories

[Ralf Wildenhues]

Proposed patch for Autoconf (adding Jeff to THANKS not shown).
We can thank Apple for needing one more fork per link test now.  :-/

FWIW, I do think that, of the fortran.m4 changes, all but the first hunk
are not necessary, rather, the `rm -f ...' lines could probably be
removed completely.  OTOH, they don't add forks, and likely Fortran
compilers generate other files that _AC_LINK_IFELSE don't catch yet.
No need to be suprt efficient here IMVHO.

OK?  Could somebody with Leopard access please test this by running
  make all check TESTSUITEFLAGS='-v -x'

with it and sending output bzip2'ed?

Cheers, and thanks,
Ralf

    Avoid warnings about conftest.dSYM directories on Mac OS X Leopard.
    
    * lib/autoconf/fortran.m4 (_AC_PROG_FC_V_OUTPUT)
    (_AC_LANG_PROGRAM_C_, _AC_FC_MAIN, __AC_FC_NAME_MANGLING):
    Remove conftest.dSYM directory.
    * lib/autoconf/general.m4 (_AC_LINK_IFELSE, _AC_RUN_IFELSE):
    * lib/autoconf/lang.m4 (AC_LINK_IFELSE): Likewise.
    (_AC_COMPILER_OBJEXT_REJECT): Reject *.dSYM.
    * THANKS: Update.
    Report and analysis by Jeff Squyres and Peter O'Gorman.

diff --git a/lib/autoconf/fortran.m4 b/lib/autoconf/fortran.m4
index 0907e40..e1adaf1 100644
--- a/lib/autoconf/fortran.m4
+++ b/lib/autoconf/fortran.m4
@@ -553,7 +553,7 @@ ac_[]_AC_LANG_ABBREV[]_v_output=`eval $ac_link 
AS_MESSAGE_LOG_FD>&1 2>&1 | grep
 AS_ECHO(["$ac_[]_AC_LANG_ABBREV[]_v_output"]) >&AS_MESSAGE_LOG_FD
 _AC_LANG_PREFIX[]FLAGS=$ac_save_FFLAGS
 
-rm -f conftest*
+rm -rf conftest*
 
 # On HP/UX there is a line like: "LPATH is: /foo:/bar:/baz" where
 # /foo, /bar, and /baz are search directories for the Fortran linker.
@@ -823,7 +823,7 @@ AC_CACHE_CHECK([for dummy main to link with _AC_LANG 
libraries],
  fi
  AC_LANG_POP(C)dnl
  ac_cv_[]_AC_LANG_ABBREV[]_dummy_main=$ac_cv_fortran_dummy_main
- rm -f conftest*
+ rm -rf conftest*
  LIBS=$ac_[]_AC_LANG_ABBREV[]_dm_save_LIBS
 ])
 []_AC_FC[]_DUMMY_MAIN=$ac_cv_[]_AC_LANG_ABBREV[]_dummy_main
@@ -892,7 +892,7 @@ AC_CACHE_CHECK([for alternate main to link with _AC_LANG 
libraries],
  done
  AC_LANG_POP(C)dnl
  ac_cv_[]_AC_LANG_ABBREV[]_main=$ac_cv_fortran_main
- rm -f conftest*
+ rm -rf conftest*
  LIBS=$ac_[]_AC_LANG_ABBREV[]_m_save_LIBS
 ])
 AC_DEFINE_UNQUOTED([]_AC_FC[]_MAIN, $ac_cv_[]_AC_LANG_ABBREV[]_main,
@@ -1004,7 +1004,7 @@ AC_CACHE_CHECK([for _AC_LANG name-mangling scheme],
   fi
 
   LIBS=$ac_save_LIBS
-  rm -f cfortran_test* conftest*],
+  rm -rf cfortran_test* conftest*],
   [AC_MSG_FAILURE([cannot compile a simple Fortran program])])
 ])
 ])# __AC_FC_NAME_MANGLING
diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index 2834e25..69b4371 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -2493,6 +2493,7 @@ AS_IF([_AC_DO_STDERR($ac_link) && {
 dnl Delete also the IPA/IPO (Inter Procedural Analysis/Optimization)
 dnl information created by the PGI compiler (conftest_ipa8_conftest.oo),
 dnl as it would interfere with the next link command.
+rm -rf conftest.dSYM
 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
       conftest$ac_exeext m4_ifval([$1], [conftest.$ac_ext])[]dnl
 ])# _AC_LINK_IFELSE
@@ -2548,6 +2549,7 @@ _AC_MSG_LOG_CONFTEST
 m4_ifvaln([$3],
          [( exit $ac_status )
 $3])dnl])[]dnl
+rm -rf conftest.dSYM
 rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext 
conftest.$ac_objext m4_ifval([$1],
                                                     [conftest.$ac_ext])[]dnl
 ])# _AC_RUN_IFELSE
diff --git a/lib/autoconf/lang.m4 b/lib/autoconf/lang.m4
index b659b9f..9a82d57 100644
--- a/lib/autoconf/lang.m4
+++ b/lib/autoconf/lang.m4
@@ -401,6 +401,9 @@ m4_divert_pop()dnl
 #
 # - *.map, *.inf
 #   Created by the Green Hills compiler.
+#
+# - *.dSYM
+#   Directory created on Mac OS X Leopard.
 
 
 # _AC_COMPILER_OBJEXT_REJECT
@@ -408,7 +411,7 @@ m4_divert_pop()dnl
 # Case/esac pattern matching the files to be ignored when looking for
 # compiled object files.
 m4_define([_AC_COMPILER_OBJEXT_REJECT],
-[*.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | 
*.inf])
+[*.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | 
*.inf | *.dSYM])
 
 
 # _AC_COMPILER_EXEEXT_REJECT