gnu: commencement: glibc-mesboot0: Use Gash instead of coretutils&co.

* gnu/packages/commencement.scm (glibc-mesboot0): Use Gash instead of
coretutils&co.

1 files changed, 30 insertions, 0 deletions

diff --git a/gnu/packages/patches/glibc-bootstrap-system-2.2.5.patch b/gnu/packages/patches/glibc-bootstrap-system-2.2.5.patch
new file mode 100644
index 0000000000..d11fc00c75
--- /dev/null
+++ b/gnu/packages/patches/glibc-bootstrap-system-2.2.5.patch
@@ -0,0 +1,30 @@
+We want to allow builds in chroots that lack /bin/sh.  Thus, system(3)
+and popen(3) need to be tweaked to use the right shell.  For the bootstrap
+glibc, we just use whatever `sh' can be found in $PATH.  The final glibc
+instead uses the hard-coded absolute file name of `bash'.
+
+--- a/sysdeps/posix/system.c
++++ b/sysdeps/posix/system.c
+@@ -106,8 +106,8 @@ do_system (const char *line)
+       (void) UNBLOCK;
+ 
+       /* Exec the shell.  */
+-      (void) __execve (SHELL_PATH, (char *const *) new_argv, __environ);
++      (void) execvp (SHELL_NAME, (char *const *) new_argv);
+       _exit (127);
+     }
+   else if (pid < (pid_t) 0)
+     /* The fork failed.  */
+--- a/libio/iopopen.c
++++ b/libio/iopopen.c
+@@ -170,7 +170,7 @@ _IO_new_proc_open (fp, command, mode)
+       for (p = proc_file_chain; p; p = p->next)
+ 	_IO_close (_IO_fileno ((_IO_FILE *) p));
+ 
+-      _IO_execl ("/bin/sh", "sh", "-c", command, (char *) 0);
++      execlp ("sh", "sh", "-c", command, (char *) 0);
+       _IO__exit (127);
+     }
+   _IO_close (child_end);
+
+