The OpenMP 2.5 specification states that "The values assigned to the
environment variables are case insensitive and may have leading and trailing
white space."
As of the 4.2-20060805 snapshot only lower case is accepted, ie:
#setenv OMP_NESTED TRUE
#./a.out
libgomp: Invalid value for environment variable OMP_NESTED
The following patch uses strcasecmp instead of strcmp to check the value of
boolean environment variables in libgomp/env.c:
--- gcc-4.2-20060805.orig/libgomp/env.c 2006-08-11 22:06:52.000000000 -0400
+++ gcc-4.2-20060805/libgomp/env.c 2006-08-11 22:08:07.000000000 -0400
@@ -140,9 +140,9 @@
if (env == NULL)
return;
- if (strcmp (env, "true") == 0)
+ if (strcasecmp (env, "true") == 0)
*value = true;
- else if (strcmp (env, "false") == 0)
+ else if (strcasecmp (env, "false") == 0)
*value = false;
else
gomp_error ("Invalid value for environment variable %s", name);
--
Summary: Case Sensitive OpenMP environment variables and patch
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: libgomp
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: merz at cita dot utoronto dot ca
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28725
