* m4/libtool.m4 (_LT_COMPILER_BOILERPLATE, _LT_LINKER_BOILERPLATE):

New macros: save warnings and boilerplate of simple compile/link tests.
(_LT_LANG_C_CONFIG, _LT_LANG_CXX_CONFIG, _LT_LANG_F77_CONFIG,
_LT_LANG_GCJ_CONFIG, _LT_LANG_RC_CONFIG): Call.
(_LT_COMPILER_OPTION, _LT_LINKER_OPTION, _LT_COMPILER_C_O, ):
Fail only if nonempty warnings different from default compile/link.

diff --git a/ChangeLog b/ChangeLog
index 82b044429d49bf9f8dfc217e380e147781c8a16d..22cdd993e6a581fb04633f59fb26830f8e027582 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2005-06-18  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+       * m4/libtool.m4 (_LT_COMPILER_BOILERPLATE, _LT_LINKER_BOILERPLATE):
+       New macros: save warnings and boilerplate of simple compile/link tests.
+       (_LT_LANG_C_CONFIG, _LT_LANG_CXX_CONFIG, _LT_LANG_F77_CONFIG,
+       _LT_LANG_GCJ_CONFIG, _LT_LANG_RC_CONFIG): Call.
+       (_LT_COMPILER_OPTION, _LT_LINKER_OPTION, _LT_COMPILER_C_O, ):
+       Fail only if nonempty warnings different from default compile/link.
+
 2005-06-17  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
        * m4/ltsugar.m4 (lt_car, lt_cdr): New macros, clones of m4_car/m4_cdr

diff --git a/m4/libtool.m4 b/m4/libtool.m4
index a14aefdbce18031eeaa0b50ba4dd5bbaaa689948..3e7d009f452bc93cb5e6cdff153d97a706f63068 100644 (file)
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -686,6 +686,32 @@ compiler=$CC
 ])# _LT_TAG_COMPILER
 
 
+# _LT_COMPILER_BOILERPLATE
+# ------------------------
+# Check for compiler boilerplate output or warnings with
+# the simple compiler test code.
+m4_defun([_LT_COMPILER_BOILERPLATE],
+[ac_outfile=conftest.$ac_objext
+printf "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+])# _LT_COMPILER_BOILERPLATE
+
+
+# _LT_LINKER_BOILERPLATE
+# ----------------------
+# Check for linker boilerplate output or warnings with
+# the simple link test code.
+m4_defun([_LT_LINKER_BOILERPLATE],
+[ac_outfile=conftest.$ac_objext
+printf "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM conftest*
+])# _LT_LINKER_BOILERPLATE
+
+
 # _LT_SYS_MODULE_PATH_AIX
 # -----------------------
 # Links a minimal program and checks the executable
@@ -1066,8 +1092,10 @@ AC_CACHE_CHECK([$1], [$2],
    echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
-     # So say no if there are warnings
-     if test ! -s conftest.err; then
+     # So say no if there are warnings other than the usual output.
+     $ECHO "X$_lt_compiler_boilerplate" | $Xsed >conftest.exp
+     $SED '/^$/d' conftest.err >conftest.er2
+     if test ! -s conftest.err || diff conftest.exp conftest.er2 >/dev/null; then
        $2=yes
      fi
    fi
@@ -1103,6 +1131,11 @@ AC_DEFUN([_LT_LINKER_OPTION],
      if test -s conftest.err; then
        # Append any errors to the config.log.
        cat conftest.err 1>&AS_MESSAGE_LOG_FD
+       $ECHO "X$_lt_linker_boilerplate" | $Xsed > conftest.exp
+       $SED '/^$/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         $2=yes
+       fi
      else
        $2=yes
      fi
@@ -1490,7 +1523,9 @@ AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
    then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
-     if test ! -s out/conftest.err; then
+     $ECHO "X$_lt_compiler_boilerplate" | $Xsed > out/conftest.exp
+     $SED '/^$/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.err || diff out/conftest.exp out/conftest.er2 >/dev/null; then
        _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
      fi
    fi
@@ -4548,6 +4583,10 @@ _LT_TAG_COMPILER
 # tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
 compiler_DEFAULT=$CC
 
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
 #
 # Check for any special shared library compilation flags.
 #
@@ -4691,6 +4730,10 @@ if test "$_lt_caught_CXX_error" != yes; then
   # ltmain only uses $CC for tagged configurations so make sure $CC is set.
   _LT_TAG_COMPILER
 
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
   # Allow CC to be a program name with arguments.
   lt_save_CC=$CC
   lt_save_LD=$LD
@@ -5810,6 +5853,10 @@ if test "$_lt_caught_F77_error" != yes; then
   # ltmain only uses $CC for tagged configurations so make sure $CC is set.
   _LT_TAG_COMPILER
 
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
   # Allow CC to be a program name with arguments.
   lt_save_CC="$CC"
   CC=${F77-"f77"}
@@ -5900,6 +5947,10 @@ lt_simple_link_test_code='public class conftest { public static void main(String
 # ltmain only uses $CC for tagged configurations so make sure $CC is set.
 _LT_TAG_COMPILER
 
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
 # Allow CC to be a program name with arguments.
 lt_save_CC="$CC"
 CC=${GCJ-"gcj"}
@@ -5959,6 +6010,10 @@ lt_simple_link_test_code="$lt_simple_compile_test_code"
 # ltmain only uses $CC for tagged configurations so make sure $CC is set.
 _LT_TAG_COMPILER
 
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
 # Allow CC to be a program name with arguments.
 lt_save_CC="$CC"
 CC=${RC-"windres"}