gcc:

	* c.opt (fextended-identifiers): New.
	* c-opts.c (c_common_handle_option): Handle
	-fextended-identifiers.
	* doc/cpp.texi: Update documentation of extended identifiers.
	* doc/cppopts.texi (-fextended-identifiers): Document.

gcc/testsuite:
	* g++.dg/cpp/ucnid-1.C, g++.dg/cpp/normalize-1.C,
	g++.dg/other/ucnid-1.C, gcc.dg/cpp/normalize-1.c,
	gcc.dg/cpp/normalize-2.c, gcc.dg/cpp/normalize-3.c,
	gcc.dg/cpp/normalize-4.c, gcc.dg/cpp/ucnid-1.c,
	gcc.dg/cpp/ucnid-2.c, gcc.dg/cpp/ucnid-3.c, gcc.dg/cpp/ucnid-4.c,
	gcc.dg/cpp/ucnid-5.c, gcc.dg/cpp/ucnid-7.c,gcc.dg/ucnid-1.c,
	gcc.dg/ucnid-2.c, gcc.dg/ucnid-3.c, gcc.dg/ucnid-4.c,
	gcc.dg/ucnid-5.c, gcc.dg/ucnid-6.c: Add -fextended-identifiers.
	* gcc.dg/cpp/ucnid-8.c: New test.

libcpp:
	* include/cpplib.h (struct cpp_options): Add extended_identifiers.
	* init.c (struct lang_flags, lang_defaults): Add
	extended_identifiers.
	(cpp_set_lang): Use it.
	* lex.c (forms_identifier_p): Check extended_identifiers.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@104462 138bc75d-0d04-0410-961f-82ee72b054a4

11 files changed, 18 insertions, 10 deletions

diff --git a/gcc/testsuite/gcc.dg/cpp/normalize-1.c b/gcc/testsuite/gcc.dg/cpp/normalize-1.c
index 768e1930e7a..b20f235ee98 100644
--- a/gcc/testsuite/gcc.dg/cpp/normalize-1.c
+++ b/gcc/testsuite/gcc.dg/cpp/normalize-1.c
@@ -1,5 +1,5 @@
 /* { dg-do preprocess } */
-/* { dg-options "-std=c99" } */
+/* { dg-options "-std=c99 -fextended-identifiers" } */
 
 \u00AA
 \u00B7
diff --git a/gcc/testsuite/gcc.dg/cpp/normalize-2.c b/gcc/testsuite/gcc.dg/cpp/normalize-2.c
index 28ef2f18e42..6f2f4956430 100644
--- a/gcc/testsuite/gcc.dg/cpp/normalize-2.c
+++ b/gcc/testsuite/gcc.dg/cpp/normalize-2.c
@@ -1,5 +1,5 @@
 /* { dg-do preprocess } */
-/* { dg-options "-std=c99 -Wnormalized=nfkc" } */
+/* { dg-options "-std=c99 -fextended-identifiers -Wnormalized=nfkc" } */
 
 \u00AA  /* { dg-warning "not in NFKC" } */
 \u00B7
diff --git a/gcc/testsuite/gcc.dg/cpp/normalize-3.c b/gcc/testsuite/gcc.dg/cpp/normalize-3.c
index 04074920860..a4f496fbb3a 100644
--- a/gcc/testsuite/gcc.dg/cpp/normalize-3.c
+++ b/gcc/testsuite/gcc.dg/cpp/normalize-3.c
@@ -1,5 +1,5 @@
 /* { dg-do preprocess } */
-/* { dg-options "-std=c99 -Wnormalized=id" } */
+/* { dg-options "-std=c99 -fextended-identifiers -Wnormalized=id" } */
 
 \u00AA
 \u00B7
diff --git a/gcc/testsuite/gcc.dg/cpp/normalize-4.c b/gcc/testsuite/gcc.dg/cpp/normalize-4.c
index 1ee3ff545d5..0040c03aa29 100644
--- a/gcc/testsuite/gcc.dg/cpp/normalize-4.c
+++ b/gcc/testsuite/gcc.dg/cpp/normalize-4.c
@@ -1,5 +1,5 @@
 /* { dg-do preprocess } */
-/* { dg-options "-std=c99 -Wnormalized=none" } */
+/* { dg-options "-std=c99 -fextended-identifiers -Wnormalized=none" } */
 
 \u00AA
 \u00B7
diff --git a/gcc/testsuite/gcc.dg/cpp/ucnid-1.c b/gcc/testsuite/gcc.dg/cpp/ucnid-1.c
index bc516cae92e..3fad08831a6 100644
--- a/gcc/testsuite/gcc.dg/cpp/ucnid-1.c
+++ b/gcc/testsuite/gcc.dg/cpp/ucnid-1.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-std=c99" } */
+/* { dg-options "-std=c99 -fextended-identifiers" } */
 void abort (void);
 
 #define \u00C0 1
diff --git a/gcc/testsuite/gcc.dg/cpp/ucnid-2.c b/gcc/testsuite/gcc.dg/cpp/ucnid-2.c
index 616680a969e..6719c783f56 100644
--- a/gcc/testsuite/gcc.dg/cpp/ucnid-2.c
+++ b/gcc/testsuite/gcc.dg/cpp/ucnid-2.c
@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-std=c99" } */
+/* { dg-options "-std=c99 -fextended-identifiers" } */
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/gcc/testsuite/gcc.dg/cpp/ucnid-3.c b/gcc/testsuite/gcc.dg/cpp/ucnid-3.c
index a910037c316..6389b7ebfee 100644
--- a/gcc/testsuite/gcc.dg/cpp/ucnid-3.c
+++ b/gcc/testsuite/gcc.dg/cpp/ucnid-3.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-std=c99" } */
+/* { dg-options "-std=c99 -fextended-identifiers" } */
 
 #define paste(x, y) x ## y
 
diff --git a/gcc/testsuite/gcc.dg/cpp/ucnid-4.c b/gcc/testsuite/gcc.dg/cpp/ucnid-4.c
index e41a3f5907d..6a6699b942c 100644
--- a/gcc/testsuite/gcc.dg/cpp/ucnid-4.c
+++ b/gcc/testsuite/gcc.dg/cpp/ucnid-4.c
@@ -1,5 +1,5 @@
 /* { dg-do preprocess } */
-/* { dg-options "-std=c99" } */
+/* { dg-options "-std=c99 -fextended-identifiers" } */
 
 \u00AA
 \u00AB /* { dg-error "not valid in an identifier" } */
diff --git a/gcc/testsuite/gcc.dg/cpp/ucnid-5.c b/gcc/testsuite/gcc.dg/cpp/ucnid-5.c
index 8fcaeac6f31..cdccd3cdf6a 100644
--- a/gcc/testsuite/gcc.dg/cpp/ucnid-5.c
+++ b/gcc/testsuite/gcc.dg/cpp/ucnid-5.c
@@ -1,5 +1,5 @@
 /* { dg-do preprocess } */
-/* { dg-options "-std=c99 -pedantic" } */
+/* { dg-options "-std=c99 -pedantic -fextended-identifiers" } */
 
 \u00AA
 \u00AB /* { dg-error "not valid in an identifier" } */
diff --git a/gcc/testsuite/gcc.dg/cpp/ucnid-7.c b/gcc/testsuite/gcc.dg/cpp/ucnid-7.c
index 854c948341a..93404225de1 100644
--- a/gcc/testsuite/gcc.dg/cpp/ucnid-7.c
+++ b/gcc/testsuite/gcc.dg/cpp/ucnid-7.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-std=c99" } */
+/* { dg-options "-std=c99 -fextended-identifiers" } */
 #define a b(
 #define b(x) q
 int a\U0000000z );
diff --git a/gcc/testsuite/gcc.dg/cpp/ucnid-8.c b/gcc/testsuite/gcc.dg/cpp/ucnid-8.c
new file mode 100644
index 00000000000..1f0379a5bb5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/ucnid-8.c
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-std=c99" } */
+/* Test that -std=c99 does not enable extended identifiers while the
+   feature is experimental; remove this test after audit of all
+   identifier uses in the compiler.  */
+#define a b(
+#define b(x) q
+int a\u00aa);