[Bug fortran/40569] F2008: Support COMPILER_OPTIONS() / COMPILER_VERSION()

["burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40569

--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> 2010-09-25 12:34:38 UTC ---
First part of an implementation.

TODO: (a) Use a module rather than the normal name space. (b) Get the command
line options; cf. http://gcc.gnu.org/ml/gcc-patches/2010-09/msg02006.html

--- intrinsic.c (Revision 164618)
+++ intrinsic.c (Arbeitskopie)
@@ -2613,0 +2615,6 @@ add_functions (void)
+
+/* MOVE TO MODULE: ISO_FORTRAN_ENV.  */
+  add_sym_0 ("compiler_options", GFC_ISYM_COMPILER_VERSION, CLASS_IMPURE,
ACTUAL_NO, BT_CHARACTER,
+            1, GFC_STD_F2008, NULL, gfc_simplify_compiler_options, NULL);
+  add_sym_0 ("compiler_version", GFC_ISYM_COMPILER_VERSION, CLASS_IMPURE,
ACTUAL_NO, BT_CHARACTER,
+            1, GFC_STD_F2008, NULL, gfc_simplify_compiler_version, NULL);
--- simplify.c  (Revision 164618)
+++ simplify.c
@@ -29,2 +29,3 @@ along with GCC; see the file COPYING3.
 #include "constructor.h"
+#include "version.h"  /* For version_string.  */

@@ -6735 +6736,17 @@ gfc_convert_char_constant (gfc_expr *e,
 }
+
+
+gfc_expr *
+gfc_simplify_compiler_options (void)
+{
+  return NULL;
+}
+
+
+gfc_expr *
+gfc_simplify_compiler_version (void)
+{
+  return gfc_get_character_expr (gfc_default_character_kind,
+                                &gfc_current_locus, version_string,
+                                strlen (version_string));
+}

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