[SCM] GNU Autoconf source repository branch, master, updated. v2.61a-397-g3dee95e

[Ralf Wildenhues]

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- Log -----------------------------------------------------------------
commit 3dee95e87814d0728ba19de27e26d364b8fd8c2c
Author: Ralf Wildenhues <address@hidden>
Date:   Fri Mar 21 07:57:26 2008 +0100

    Avoid leftover files on Leopard.
    
    * lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT): Remove a.out.dSYM
    directory created on darwin.
    (AC_NO_EXECUTABLES): Likewise; also remove objects which may be
    left over from a broken link.
    * tests/c.at (AC_NO_EXECUTABLES (working linker))
    (AC_NO_EXECUTABLES (broken linker)): New tests.
    Report by Gary V. Vaughan.
    
    Signed-off-by: Ralf Wildenhues <address@hidden>

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog            |    9 +++++++++
 lib/autoconf/lang.m4 |    5 +++--
 tests/c.at           |   21 +++++++++++++++++++++
 3 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 438f605..5be2fca 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2008-03-21  Ralf Wildenhues  <address@hidden>
 
+       Avoid leftover files on Leopard.
+       * lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT): Remove a.out.dSYM
+       directory created on darwin.
+       (AC_NO_EXECUTABLES): Likewise; also remove objects which may be
+       left over from a broken link.
+       * tests/c.at (AC_NO_EXECUTABLES (working linker))
+       (AC_NO_EXECUTABLES (broken linker)): New tests.
+       Report by Gary V. Vaughan.
+
        * lib/autom4te.in (Automake-preselections): Trace
        _AM_COND_IF, _AM_COND_ELSE, _AM_COND_ENDIF.
 
diff --git a/lib/autoconf/lang.m4 b/lib/autoconf/lang.m4
index f17aa8c..c67a34c 100644
--- a/lib/autoconf/lang.m4
+++ b/lib/autoconf/lang.m4
@@ -356,6 +356,7 @@ if _AC_DO_VAR(ac_link); then
   ac_no_link=no
   ]m4_defn([_AC_COMPILER_EXEEXT])[
 else
+  rm -f -r a.out a.exe b.out conftest.$ac_ext conftest.o conftest.obj 
conftest.dSYM
   ac_no_link=yes
   # Setting cross_compile will disable run tests; it will
   # also disable AC_CHECK_FILE but that's generally
@@ -592,10 +593,10 @@ AC_MSG_RESULT([$ac_cv_exeext])
 m4_define([_AC_COMPILER_EXEEXT],
 [AC_LANG_CONFTEST([AC_LANG_PROGRAM()])
 ac_clean_files_save=$ac_clean_files
-ac_clean_files="$ac_clean_files a.out a.exe b.out"
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 _AC_COMPILER_EXEEXT_DEFAULT
 _AC_COMPILER_EXEEXT_WORKS
-rm -f a.out a.exe conftest$ac_cv_exeext b.out
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
 _AC_COMPILER_EXEEXT_CROSS
 _AC_COMPILER_EXEEXT_O
diff --git a/tests/c.at b/tests/c.at
index e05a67c..c9714c2 100644
--- a/tests/c.at
+++ b/tests/c.at
@@ -209,3 +209,24 @@ AT_CHECK_DEFINES(
 ])
 
 AT_CLEANUP
+
+
+## ------------------------------------ ##
+## AC_NO_EXECUTABLES (working linker).  ##
+## ------------------------------------ ##
+
+AT_CHECK_MACRO([AC_NO_EXECUTABLES (working linker)],
+[AC_NO_EXECUTABLES
+AC_PROG_CC
+])
+
+
+## ----------------------------------- ##
+## AC_NO_EXECUTABLES (broken linker).  ##
+## ----------------------------------- ##
+
+AT_CHECK_MACRO([AC_NO_EXECUTABLES (broken linker)],
+[LDFLAGS=-lnosuchlibrary
+AC_NO_EXECUTABLES
+AC_PROG_CC
+])


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