Update copyright years.

Delete config.log before doing anything else.
Write additional diagnostics to config.log in case of failures to
compile test programs, including the failed test program itself.
Add a test for support of -mtune=pentium4 switch to GCC; if it is
supported, set up MCPU_FLAG variable on the various Makefiles to
use that switch during compilations.  (This avoids GCC warning
about -mcpu being deprecated.)

diff --git a/nt/configure.bat b/nt/configure.bat
index 2164208..40a1e64 100755 (executable)
--- a/nt/configure.bat
+++ b/nt/configure.bat
@@ -1,7 +1,8 @@
 @echo off\r
 rem   ----------------------------------------------------------------------\r
 rem   Configuration script for MS Windows 95/98/Me and NT/2000/XP\r
-rem   Copyright (C) 1999-2003 Free Software Foundation, Inc.\r
+rem   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 \r
+rem      Free Software Foundation, Inc.\r
 \r
 rem   This file is part of GNU Emacs.\r
 \r
@@ -47,6 +48,8 @@ rem [3] requires LC_MESSAGES support to build; maybe 2.95.x update to
 rem     cygwin provides this?\r
 rem\r
 \r
+if exist config.log del config.log\r
+\r
 rem ----------------------------------------------------------------------\r
 rem   See if the environment is large enough.  We need 43 (?) bytes.\r
 set $foo$=123456789_123456789_123456789_123456789_123\r
@@ -236,13 +239,17 @@ if (%nocygwin%) == (Y) goto chkapi
 echo Checking whether gcc requires '-mno-cygwin'...\r
 echo #include "cygwin/version.h" >junk.c\r
 echo main(){} >>junk.c\r
-gcc -c junk.c\r
+echo gcc -c junk.c >>config.log\r
+gcc -c junk.c >>config.log 2>&1\r
 if not exist junk.o goto chkapi\r
-gcc -mno-cygwin -c junk.c\r
+echo gcc -mno-cygwin -c junk.c >>config.log\r
+gcc -mno-cygwin -c junk.c >>config.log 2>&1\r
 if exist junk.o set nocygwin=Y\r
 rm -f junk.c junk.o\r
 \r
 :chkapi\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
 rem ----------------------------------------------------------------------\r
 rem   Older versions of the Windows API headers either don't have any of\r
 rem   the IMAGE_xxx definitions (the headers that come with Cygwin b20.1\r
@@ -263,9 +270,13 @@ set cf=%usercflags% -mno-cygwin
 :chkapi2\r
 echo on\r
 gcc %cf% -c junk.c\r
-echo off\r
+@echo off\r
+@echo gcc %cf% -c junk.c >>config.log\r
+gcc %cf% -c junk.c >>config.log 2>&1\r
 set cf=\r
 if exist junk.o goto gccOk\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
 \r
 :nocompiler\r
 echo.\r
@@ -278,8 +289,23 @@ goto end
 \r
 :gccOk\r
 set COMPILER=gcc\r
-rm -f junk.c junk.o\r
 echo Using 'gcc'\r
+rm -f junk.c junk.o\r
+Rem It is not clear what GCC version began supporting -mtune\r
+Rem and pentium4 on x86, so check this explicitly.\r
+echo main(){} >junk.c\r
+echo gcc -c -O2 -mtune=pentium4 junk.c >>config.log\r
+gcc -c -O2 -mtune=pentium4 junk.c >>config.log 2>&1\r
+if not errorlevel 1 goto gccMtuneOk\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
+set mf=-mcpu=i686\r
+rm -f junk.c junk.o\r
+goto compilercheckdone\r
+:gccMtuneOk\r
+echo GCC supports -mtune=pentium4 >>config.log\r
+set mf=-mtune=pentium4\r
+rm -f junk.c junk.o\r
 goto compilercheckdone\r
 \r
 :clOk\r
@@ -307,10 +333,13 @@ echo Checking for libpng...
 echo #include "png.h" >junk.c\r
 echo main (){} >>junk.c\r
 rem   -o option is ignored with cl, but allows result to be consistent.\r
-%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>junk.err\r
+echo %COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >>config.log\r
+%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>>config.log\r
 if exist junk.obj goto havePng\r
 \r
 echo ...png.h not found, building without PNG support.\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
 set HAVE_PNG=\r
 goto :pngDone\r
 \r
@@ -327,10 +356,13 @@ echo Checking for jpeg-6b...
 echo #include "jconfig.h" >junk.c\r
 echo main (){} >>junk.c\r
 rem   -o option is ignored with cl, but allows result to be consistent.\r
-%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>junk.err\r
+echo %COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >>config.log\r
+%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>>config.log\r
 if exist junk.obj goto haveJpeg\r
 \r
 echo ...jconfig.h not found, building without JPEG support.\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
 set HAVE_JPEG=\r
 goto :jpegDone\r
 \r
@@ -347,10 +379,13 @@ echo Checking for libgif...
 echo #include "gif_lib.h" >junk.c\r
 echo main (){} >>junk.c\r
 rem   -o option is ignored with cl, but allows result to be consistent.\r
-%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>junk.err\r
+echo %COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >>config.log\r
+%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>>config.log\r
 if exist junk.obj goto haveGif\r
 \r
 echo ...gif_lib.h not found, building without GIF support.\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
 set HAVE_GIF=\r
 goto :gifDone\r
 \r
@@ -367,10 +402,13 @@ echo Checking for tiff...
 echo #include "tiffio.h" >junk.c\r
 echo main (){} >>junk.c\r
 rem   -o option is ignored with cl, but allows result to be consistent.\r
-%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>junk.err\r
+echo %COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >>config.log\r
+%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>>config.log\r
 if exist junk.obj goto haveTiff\r
 \r
 echo ...tiffio.h not found, building without TIFF support.\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
 set HAVE_TIFF=\r
 goto :tiffDone\r
 \r
@@ -388,10 +426,13 @@ echo #define FOR_MSW 1 >junk.c
 echo #include "X11/xpm.h" >>junk.c\r
 echo main (){} >>junk.c\r
 rem   -o option is ignored with cl, but allows result to be consistent.\r
-%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>junk.err\r
+echo %COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >>config.log\r
+%COMPILER% %usercflags% %mingwflag% -c junk.c -o junk.obj >junk.out 2>>config.log\r
 if exist junk.obj goto haveXpm\r
 \r
 echo ...X11/xpm.h not found, building without XPM support.\r
+echo The failed program was: >>config.log\r
+type junk.c >>config.log\r
 set HAVE_XPM=\r
 goto :xpmDone\r
 \r
@@ -414,6 +455,7 @@ rem   except when there is a preceding digit, when a space is required.
 rem\r
 echo # Start of settings from configure.bat >config.settings\r
 echo COMPILER=%COMPILER%>>config.settings\r
+if not "(%mf%)" == "()" echo MCPU_FLAG=%mf%>>config.settings\r
 if (%nodebug%) == (Y) echo NODEBUG=1 >>config.settings\r
 if (%noopt%) == (Y) echo NOOPT=1 >>config.settings\r
 if (%nocygwin%) == (Y) echo NOCYGWIN=1 >>config.settings\r
@@ -474,6 +516,7 @@ set MAKECMD=
 set usercflags=\r
 set userldflags=\r
 set mingwflag=\r
+set mf=\r
 \r
 goto skipArchTag\r
    arch-tag: 300d20a4-1675-4e75-b615-7ce1a8c5376c\r