Fix builds of scope.c with Solaris Studio compilers

Required in order to build with Studio cc now that xorg-macros is
setting -errwarn=E_FUNC_HAS_NO_RETURN_STMT since a bug in the Solaris
system headers causes the noreturn attribute to not be correctly
applied to the exit() prototype in <stdlib.h> when building with
Studio instead of gcc.

Otherwise compiler exits with error:
"scope.c", line 643: Function has no return statement : CMDQuit

Uses Studio-specific pragma instead of adding another exit() prototype
with a noreturn attribute to avoid causing gcc to warn about having
a redundant prototype for the exit() function.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/scope.c b/scope.c
index 2fec497..9b0ddf9 100644
--- a/scope.c
+++ b/scope.c
@@ -633,6 +633,11 @@ CMDStep (
     return CMDProceed;
 }
 
+#ifdef __SUNPRO_C
+/* prevent "Function has no return statement" error for CMDQuit */
+#pragma does_not_return(exit)
+#endif
+
 static CMDResult
 CMDQuit (
     int argc,