Subject: Re: [bug#29975] [core-updates] gnu: gpm: Fix building with glibc 2.26.

From: Marius Bakke <[email-masked]>
Date: Sat, 06 Jan 2018 23:01:01 +0100

Leo Famulari <[email-masked]> writes:

> * gnu/packages/patches/gpm-glibc-2.26.patch: New file.
> * gnu/local.mk (dist_patch_DATA): Add it.
> * gnu/packages/linux.scm (gpm)[source]: Use it.

[...]

> diff --git a/gnu/packages/patches/gpm-glibc-2.26.patch b/gnu/packages/patches/gpm-glibc-2.26.patch
> new file mode 100644
> index 000000000..cc2766ce8
> --- /dev/null
> +++ b/gnu/packages/patches/gpm-glibc-2.26.patch
> @@ -0,0 +1,79 @@
> +Fix building of GPM with glibc 2.26:
> +
> +------
> +daemon/open_console.o: In function `open_console':
> +/tmp/guix-build-gpm-1.20.7.drv-0/gpm-1.20.7/src/daemon/open_console.c:45: undefined reference to `major'
> +collect2: error: ld returned 1 exit status
> +------
> +
> +https://github.com/telmich/gpm/issues/21
> +
> +Patch copied from Linux From Scratch:
> +
> +http://www.linuxfromscratch.org/patches/blfs/svn/gpm-1.20.7-glibc_2.26-1.patch

No response from upstream in 6 months, yikes!

Gentoo only carries the sysmacros.h hunk, plus a one-liner:

https://gitweb.gentoo.org/repo/gentoo.git/tree/sys-libs/gpm/files

...which seems less "brutal" than the LFS patch.  Can you try it?

I also noticed Arch does not have any patches on gpm, I wonder what they
do differently.

https://git.archlinux.org/svntogit/packages.git/tree/trunk?h=packages/gpm

> +
> +Submitted by: Pierre Labastie <pierre dot labastie at neuf dot fr>
> +Date: 2017-08-17
> +Initial Package Version: 1.20.7
> +Origin: Nutyx
> +Upstream Status: There are PRs, but nothing committed yet
> +Description: Fix build failures introduced by glibc-2.26
> +
> +diff -Naur gpm-1.20.7-orig/src/daemon/open_console.c gpm-1.20.7/src/daemon/open_console.c
> +--- gpm-1.20.7-orig/src/daemon/open_console.c	2012-10-26 21:21:38.000000000 +0000
> ++++ gpm-1.20.7/src/daemon/open_console.c	2017-08-08 17:58:15.176232558 +0000
> +@@ -23,6 +23,10 @@
> + #include <sys/stat.h>               /* stat()            */
> + #include <sys/ioctl.h>              /* ioctl             */
> + 
> ++#ifdef HAVE_SYS_SYSMACROS_H
> ++#include <sys/sysmacros.h>          /* major() w/newer glibc */
> ++#endif
> ++
> + /* Linux specific (to be outsourced in gpm2 */
> + #include <linux/serial.h>           /* for serial console check */
> + #include <asm/ioctls.h>            /* for serial console check */
> +diff -Naur gpm-1.20.7-orig/src/prog/gpm-root.y gpm-1.20.7/src/prog/gpm-root.y
> +--- gpm-1.20.7-orig/src/prog/gpm-root.y	2012-10-26 21:21:38.000000000 +0000
> ++++ gpm-1.20.7/src/prog/gpm-root.y	2017-08-08 18:00:36.442898559 +0000
> +@@ -443,6 +443,7 @@
> + }
> + 
> + /*---------------------------------------------------------------------*/
> ++#if 0
> + static int f_debug_one(FILE *f, Draw *draw)
> + {
> +    DrawItem *ip;
> +@@ -465,6 +466,7 @@
> + #undef LINE
> +    return 0;
> + }
> ++#endif
> + 
> + int f_debug(int mode, DrawItem *self, int uid)
> + {
> +@@ -960,10 +962,8 @@
> + /*------------*/
> + static inline void scr_restore(int fd, FILE *f, unsigned char *buffer, int vc)
> + {
> +-   int x,y, dumpfd;
> ++   int dumpfd;
> +    char dumpname[20];
> +-
> +-   x=buffer[2]; y=buffer[3];
> +    
> +    /* WILL NOT WORK WITH DEVFS! FIXME! */
> +    sprintf(dumpname,"/dev/vcsa%i",vc);
> +@@ -1196,11 +1196,7 @@
> +                                                         LOG_DAEMON : LOG_USER);
> +    /* reap your zombies */
> +    childaction.sa_handler=reap_children;
> +-#if defined(__GLIBC__)
> +-   __sigemptyset(&childaction.sa_mask);
> +-#else /* __GLIBC__ */
> +-   childaction.sa_mask=0;
> +-#endif /* __GLIBC__ */
> ++   sigemptyset(&childaction.sa_mask);
> +    childaction.sa_flags=SA_INTERRUPT; /* need to break the select() call */
> +    sigaction(SIGCHLD,&childaction,NULL);
> + 
> -- 
> 2.15.1