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authorFoo Chuan Wei <chuanwei.foo@hotmail.com>2022-05-25 01:44:59 +0000
committerTobias Geerinckx-Rice <me@tobias.gr>2022-05-29 02:00:10 +0200
commit62da327848311a75723f16642c20d2925919237e (patch)
treecadae04b728e88fc5e1d891b0c5751e1366a9650 /gnu/packages/sml.scm
parented15c921395bebbe0b385ab41b1381b6ab23a42d (diff)
downloadguix-62da327848311a75723f16642c20d2925919237e.tar
guix-62da327848311a75723f16642c20d2925919237e.tar.gz
gnu: smlnj: Fix use of Ctrl-c in sml REPL.
* gnu/packages/sml.scm (smlnj): Replace INVOKE with SYSTEM which has more favourable signal dispositions. Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr>
Diffstat (limited to 'gnu/packages/sml.scm')
-rw-r--r--gnu/packages/sml.scm20
1 files changed, 16 insertions, 4 deletions
diff --git a/gnu/packages/sml.scm b/gnu/packages/sml.scm
index 1895d8eeee..368abf6cfa 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