http://www.gotom.jp/~gotom/cgi-bin/blosxom.cgi Gotom's weblog. en http://www.gotom.jp/~gotom/cgi-bin/blosxom.cgi/2005/05/04#20050504 <p> The current emacs21 and xemacs21 switches to diff-mode when we open *.patch files. But I fell into the trap hidden in the current diff-mode behavior over one hour. </p><p> When I opened the patch file (filename: debian/patches/linux-types-and-time.patch in linux-kernel-headers package), the file was as follows: <pre> --- include.orig/linux/time.h 2005-04-21 09:03:16.000000000 +0900 +++ include/linux/time.h 2005-05-04 15:29:52.266871616 +0900 @@ -1,6 +1,10 @@ #ifndef _LINUX_TIME_H ... #ifdef __KERNEL__ => @@ -177,5 +181,6 @@ struct itimerval { #define TIMER_ABSTIME 0x01 ... #endif --- include.orig/linux/types.h 2005-04-21 09:03:16.000000000 +0900 +++ include/linux/types.h 2005-05-04 15:30:14.515900970 +0900 @@ -1,6 +1,16 @@ #ifndef _LINUX_TYPES_H ... => @@ -169,4 +179,6 @@ char f_fpack[6]; }; </pre> Then, I just exchanged the order of two parts as follows: <pre> --- include.orig/linux/types.h 2005-04-21 09:03:16.000000000 +0900 +++ include/linux/types.h 2005-05-04 15:30:14.515900970 +0900 @@ -1,6 +1,16 @@ #ifndef _LINUX_TYPES_H ... #include <linux/config.h> => @@ -169,5 +179,7 @@ char f_fpack[6]; }; --- include.orig/linux/time.h 2005-04-21 09:03:16.000000000 +0900 +++ include/linux/time.h 2005-05-04 15:29:52.266871616 +0900 @@ -1,6 +1,10 @@ #ifndef _LINUX_TIME_H ... + #ifdef __KERNEL__ => @@ -177,6 +181,7 @@ struct itimerval { #define TIMER_ABSTIME 0x01 ... </pre> @@ lines are suddenly modified without any editing for patch lines. This behavior is crazy. I submitted the bug report to <a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=201816">Bug#201816</a> and <a href="http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=307617">Bug#307617</a>. I think either this problem should be fixed or emacs should provide the variable to stop @@ line modification via "setq" and so on. </p> http://www.gotom.jp/~gotom/cgi-bin/blosxom.cgi/2005/03/30#20050330 <p> I just installed blosxom for my blog. I usually use my diary at <a href="http://www.gotom.jp/~gotom/diary/">gotom diary</a>, but I heard from someone that blosxom is more suitable for planet.debian.net articles compared with HNS. <br> I was requested to write this blog from my colleague, Guillaume Bisch - I guess he'll look at my blog in April after he returns to Switzerland. I usually wrote my diary in Japanese - but in this blog I'll write all articles in English. </p> <p> Today, I worked for debian glibc 2.3.2.ds1-21 <=> 2.3.4-3 upgrade/downgrade path. It works nicely for me, but it needs more review. I shall write this interesting problem someday. </p>