re PR driver/48524 (spec language does not cover switches with separated form)

2012-02-08  Magnus Granberg  <zorry@gentoo.org>

	PR driver/48524
	* gcc.c (switch_matches) Support switches with separated form, -D
	and -U.

testsuite:
	* gcc.dg/pr48524.c: New test.
	* gcc.dg/pr48524.spec: New spec file for test.

From-SVN: r184022

gcc/ChangeLog

+2012-02-08  Magnus Granberg  <zorry@gentoo.org>
+
+	PR driver/48524
+	* gcc.c (switch_matches) Support switches with separated form, -D
+	and -U.
+
 2012-02-08  Georg-Johann Lay  <avr@gjlay.de>
 
 	* config/avr/avr.md (SREG_ADDR): Remove constant definition.

gcc/gcc.c

@@ -5455,6 +5455,21 @@ switch_matches (const char *atom, const char *end_atom, int starred)
 	&& check_live_switch (i, plen))
       return true;
 
+    /* Check if a switch with separated form matching the atom.
+       We check -D and -U switches. */
+    else if (switches[i].args != 0)
+      {
+	if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U')
+	    && *switches[i].part1 == atom[0])
+	  {
+	    if (!strncmp (switches[i].args[0], &atom[1], len - 1)
+		&& (starred || (switches[i].part1[1] == '\0'
+				&& switches[i].args[0][len - 1] == '\0'))
+		&& check_live_switch (i, (starred ? 1 : -1)))
+	      return true;
+	  }
+      }
+
   return false;
 }
 

gcc/testsuite/ChangeLog

+2012-02-08  Magnus Granberg  <zorry@gentoo.org>
+
+	PR driver/48524
+	* gcc.dg/pr48524.c: New test.
+	* gcc.dg/pr48524.spec: New spec file for test.
+
 2012-02-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/32380

gcc/testsuite/gcc.dg/pr48524.c

+/* { dg-do preprocess } */
+/* { dg-options "-specs=${srcdir}/gcc.dg/pr48524.spec -D_TEST_D" } */
+# ifdef _FOO
+# error works /* { dg-error "works" } */
+# endif
+

gcc/testsuite/gcc.dg/pr48524.spec

+*cpp_options:
+%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
+ %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
+ %{undef} %{save-temps*:-fpch-preprocess} %{D_TEST_D:-D_FOO}
+