diff options
Diffstat (limited to 'gnu/packages/patches/racket-chez-scheme-bin-sh.patch')
| -rw-r--r-- | gnu/packages/patches/racket-chez-scheme-bin-sh.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/gnu/packages/patches/racket-chez-scheme-bin-sh.patch b/gnu/packages/patches/racket-chez-scheme-bin-sh.patch new file mode 100644 index 0000000000..65cf2f99f3 --- /dev/null +++ b/gnu/packages/patches/racket-chez-scheme-bin-sh.patch @@ -0,0 +1,76 @@ +From e982b6687494bf071386c67be74e57a29cf4ce00 Mon Sep 17 00:00:00 2001 +From: Philip McGrath <philip@philipmcgrath.com> +Date: Wed, 24 Aug 2022 19:55:14 -0400 +Subject: [PATCH] Chez Scheme: patch s_process for "/bin/sh" on Guix + +If: + + 1. The nonstandard but ubiquitous macro `_PATH_BSHELL` from + <paths.h> is defined; and + + 2. The path specified by `_PATH_BSHELL` exists; + +then `s_process` will call `execl` with the file specified by +`_PATH_BSHELL` instead of "/bin/sh". + +Checking that the path specified by `_PATH_BSHELL` exists safeguards +against obscure errors if attempting to use stand-alone executables +built by the patched Racket in non-Guix envoronments. + +This patch does not change the behavior of `s_system`, which relies +on `system` from the C library. +--- + racket/src/ChezScheme/c/prim5.c | 21 ++++++++++++++++++++- + 1 file changed, 20 insertions(+), 1 deletion(-) + +diff --git a/racket/src/ChezScheme/c/prim5.c b/racket/src/ChezScheme/c/prim5.c +index f5e3e345be..922421ca75 100644 +--- a/racket/src/ChezScheme/c/prim5.c ++++ b/racket/src/ChezScheme/c/prim5.c +@@ -22,6 +22,12 @@ + #include <limits.h> + #include <ctype.h> + ++/* BEGIN PATCH for Guix */ ++#ifndef WIN32 ++# include <paths.h> ++#endif ++/* END PATCH for Guix */ ++ + /* locally defined functions */ + static INT s_errno PROTO((void)); + static IBOOL s_addr_in_heap PROTO((uptr x)); +@@ -856,6 +862,17 @@ static ptr s_process(s, stderrp) char *s; IBOOL stderrp; { + + INT tofds[2], fromfds[2], errfds[2]; + struct sigaction act, oint_act; ++ /* BEGIN PATCH for Guix */ ++#if defined(_PATH_BSHELL) ++ struct stat guix_stat_buf; ++ char *guix_sh = ++ (0 == stat(_PATH_BSHELL, &guix_stat_buf)) ++ ? _PATH_BSHELL ++ : "/bin/sh"; ++#else /* _PATH_BSHELL */ ++ char *guix_sh = "/bin/sh"; ++#endif ++ /* END PATCH for Guix */ + + if (pipe(tofds)) S_error("process","cannot open pipes"); + if (pipe(fromfds)) { +@@ -881,7 +898,9 @@ static ptr s_process(s, stderrp) char *s; IBOOL stderrp; { + CLOSE(1); if (dup(fromfds[1]) != 1) _exit(1); + CLOSE(2); if (dup(stderrp ? errfds[1] : 1) != 2) _exit(1); + {INT i; for (i = 3; i < NOFILE; i++) (void)CLOSE(i);} +- execl("/bin/sh", "/bin/sh", "-c", s, NULL); ++ /* BEGIN PATCH for Guix */ ++ execl(guix_sh, guix_sh, "-c", s, NULL); ++ /* END PATCH for Guix */ + _exit(1) /* only if execl fails */; + /*NOTREACHED*/ + } else { + +base-commit: 9d228d16fb99c274c964e5bef93e97333888769f +-- +2.32.0 + |