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path: root/gnu/packages/patches/glibc-bootstrap-system.patch
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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
@@ -140,7 +140,7 @@ do_system (const char *line)
   __posix_spawnattr_setflags (&spawn_attr,
 			      POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK);
 
-  status = __posix_spawn (&pid, SHELL_PATH, 0, &spawn_attr,
+  status = __posix_spawnp (&pid, SHELL_NAME, 0, &spawn_attr,
 			  (char *const[]){ (char*) SHELL_NAME,
 					   (char*) "-c",
 					   (char *) line, NULL },
--- a/libio/iopopen.c
+++ b/libio/iopopen.c
@@ -85,7 +85,7 @@ spawn_process (posix_spawn_file_actions_t *fa, FILE *fp, const char *command,
 	return false;
     }
 
-  if (__posix_spawn (&((_IO_proc_file *) fp)->pid, _PATH_BSHELL, fa, 0,
+  if (__posix_spawnp (&((_IO_proc_file *) fp)->pid, "sh", fa, 0,
 		     (char *const[]){ (char*) "sh", (char*) "-c",
 		     (char *) command, NULL }, __environ) != 0)
     return false;

--- a/include/spawn.h
+++ b/include/spawn.h
@@ -5,6 +5,9 @@
 __typeof (posix_spawn) __posix_spawn;
 libc_hidden_proto (__posix_spawn)

+__typeof (posix_spawnp) __posix_spawnp;
+libc_hidden_proto (__posix_spawnp)
+
 __typeof (posix_spawn_file_actions_addclose)
   __posix_spawn_file_actions_addclose attribute_hidden;

--- a/posix/spawnp.c
+++ b/posix/spawnp.c
@@ -31,6 +31,7 @@ __posix_spawnp (pid_t *pid, const char *file,
                   SPAWN_XFLAGS_USE_PATH);
 }
 versioned_symbol (libc, __posix_spawnp, posix_spawnp, GLIBC_2_15);
+libc_hidden_def (__posix_spawnp)


 #if SHLIB_COMPAT (libc, GLIBC_2_2, GLIBC_2_15)