[PATCH 2/2] Fix assignment of read-only location error OS/2

[KO Myung-Hun]

-----
    gcc -DHAVE_CONFIG_H   -Isrc -I./src -Ilib -I./lib 
-DLIBDIR=\"/usr/local/lib\" -DLOCALEDIR=\"/usr/local/share/locale\"   
-D__ST_MT_ERRNO__  -O2 -Zomf -Zmt -MT src/job.o -MD -MP -MF $depbase.Tpo -c -o 
src/job.o src/job.c &&\
        mv -f $depbase.Tpo $depbase.Po
src/job.c: In function 'construct_command_argv_internal':
src/job.c:3229:21: error: assignment of read-only location '*shellflags'
 3229 |       shellflags[0] = '/'; /* "/c" */
      |                     ^
-----
---
 src/job.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/job.c b/src/job.c
index b78f279..22b4a82 100644
--- a/src/job.c
+++ b/src/job.c
@@ -3226,7 +3226,13 @@ construct_command_argv_internal (char *line, char 
**restp, const char *shell,
 
 # ifdef __EMX__ /* is this necessary? */
     if (!unixy_shell && shellflags)
-      shellflags[0] = '/'; /* "/c" */
+      {
+        int n = strlen (shellflags) + 1;
+        char *flags = alloca (n);
+        memcpy (flags, shellflags, n);
+        flags[0] = '/'; /* "/c" */
+        shellflags = flags;
+      }
 # endif
 
     /* In .ONESHELL mode we are allowed to throw the entire current
-- 
2.30.0