(address . guix-patches@gnu.org)
PU1PR01MB21558F43DCE101CA76C722DA8DD69@PU1PR01MB2155.apcprd01.prod.exchangelabs.com
* gnu/packages/sml.scm (smlnj): Fix use of Ctrl-c in sml REPL.
---
Related mailing list thread:
("Why does sh in the build environment ignore SIGINT and SIGQUIT?")
gnu/packages/sml.scm | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
Toggle diff (35 lines)
diff --git a/gnu/packages/sml.scm b/gnu/packages/sml.scm
index 04411c02c3..94a65961d6 100644
--- a/gnu/packages/sml.scm
+++ b/gnu/packages/sml.scm
@@ -175,10 +175,22 @@ function interface, and a symbolic debugger.")
"sml.boot.amd64-unix/SMLNJ-BASIS/.cm/amd64-unix/basis-common.cm"))
;; Build.
- (invoke "./config/install.sh" "-default"
- (if (string=? "i686-linux" ,(%current-system))
- "32"
- "64"))
+ ;; The `sml` executable built by this package somehow inherits the
+ ;; signal dispositions of the shell where it was built. If SIGINT
+ ;; is ignored in the shell, the resulting `sml` will also ignore
+ ;; SIGINT. This will break the use of Ctrl-c for interrupting
+ ;; execution in the SML/NJ REPL.
+ ;; Here, we use Guile's `system` procedure instead of Guix's
+ ;; `invoke` because `invoke` uses Guile's `system*`, which causes
+ ;; SIGINT and SIGQUIT to be ignored.
+ (let ((exit-code
+ (system (string-append "./config/install.sh -default "
+ (if (string=? "i686-linux"
+ ,(%current-system))
+ "32"
+ "64")))))
+ (unless (zero? exit-code)
+ (error (format #f "Exit code: ~a" exit-code))))
;; Undo the binary patch.
(for-each
base-commit: d129d962e437fd215c5e9428fc1b26e2d72ffbda
--
2.25.1