[Automake-commit] [SCM] GNU Automake branch, branch-1-10, updated. v1.10.2-41-g5a691c2

[Ralf Wildenhues]

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- Log -----------------------------------------------------------------
commit 5a691c208f37537c5d24ff8be1807016da330d94
Author: Ralf Wildenhues <address@hidden>
Date:   Mon Mar 9 22:06:22 2009 +0100

    Relax depcomp test for MSVC to not require minuso.
    
    * m4/depend.m4 (_AM_DEPENDENCIES): When checking the msvisualcpp
    and msvcmsys depmodes, do not require `-c -o' to work just yet.
    It is not needed by the depcomp script for these depmodes, and
    works around the ordering issue between the tests.
    Report by Peter Rosin.
    
    Signed-off-by: Ralf Wildenhues <address@hidden>

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

Summary of changes:
 ChangeLog    |    9 +++++++++
 m4/depend.m4 |   26 ++++++++++++++++++--------
 2 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 24eb328..7f1f088 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2009-03-09  Ralf Wildenhues  <address@hidden>
+
+       Relax depcomp test for MSVC to not require minuso.
+       * m4/depend.m4 (_AM_DEPENDENCIES): When checking the msvisualcpp
+       and msvcmsys depmodes, do not require `-c -o' to work just yet.
+       It is not needed by the depcomp script for these depmodes, and
+       works around the ordering issue between the tests.
+       Report by Peter Rosin.
+
 2009-03-14  Ralf Wildenhues  <address@hidden>
 
        * NEWS: Update.
diff --git a/m4/depend.m4 b/m4/depend.m4
index fd09373..451312a 100644
--- a/m4/depend.m4
+++ b/m4/depend.m4
@@ -1,12 +1,12 @@
 ##                                                          -*- Autoconf -*-
-# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009
 # Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 9
+# serial 10
 
 # There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
 # written in clear, in which case automake, when reading aclocal.m4,
@@ -80,6 +80,12 @@ AC_CACHE_CHECK([dependency style of $depcc],
     done
     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 
+    # We check with `-c' and `-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle `-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
     case $depmode in
     nosideeffect)
       # after this tag, mechanisms are not by side-effect, so they'll
@@ -90,19 +96,23 @@ AC_CACHE_CHECK([dependency style of $depcc],
        break
       fi
       ;;
+    msvisualcpp | msvcmsys)
+      # This compiler won't grok `-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
     none) break ;;
     esac
-    # We check with `-c' and `-o' for the sake of the "dashmstdout"
-    # mode.  It turns out that the SunPro C++ compiler does not properly
-    # handle `-M -o', and we need to detect this.
     if depmode=$depmode \
-       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+       source=sub/conftest.c object=$am__obj \
        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
-       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
          >/dev/null 2>conftest.err &&
        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
-       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj 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
       # or remarks (even with -Werror).  So we grep stderr for any message


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