diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0f33ba89a709f49d5bcd02b31ccff95912639853..670536c1b15447015d29259f84963a05539ae942 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2006-10-29  Kazu Hirata  <kazu@codesourcery.com>
+
+	* config/darwin.c, config/darwin.opt, config/ia64/itanium1.md,
+	config/ia64/itanium2.md, real.c, tree-ssa-structalias.c: Fix
+	comment typos.
+
 2006-10-28  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	PR middle-end/29335
diff --git a/gcc/config/darwin.c b/gcc/config/darwin.c
index dfd84ef5191e00641ce99685e7cebc1332310b93..7475b1a5e990923332cc1496aee7a33144028309 100644
--- a/gcc/config/darwin.c
+++ b/gcc/config/darwin.c
@@ -1610,7 +1610,7 @@ darwin_set_default_type_attributes (tree type)
                                         TYPE_ATTRIBUTES (type));
 }
 
-/* True, iff we're generating code for loadable kernel extentions.  */
+/* True, iff we're generating code for loadable kernel extensions.  */
 
 bool
 darwin_kextabi_p (void) {
diff --git a/gcc/config/darwin.opt b/gcc/config/darwin.opt
index 9fee719b1cde36a60a39b6f2a7e14336cd6590bb..ef89b78600844e66c1437da11f4fc388c1c516ec 100644
--- a/gcc/config/darwin.opt
+++ b/gcc/config/darwin.opt
@@ -33,8 +33,8 @@ Set sizeof(bool) to 1
 
 fapple-kext
 Target Report Var(flag_apple_kext)
-Generate code for darwin loadable kernel extentions
+Generate code for darwin loadable kernel extensions
 
 mkernel
 Target Report Var(flag_mkernel)
-Generate code for the kernel or loadable kernel extentions
+Generate code for the kernel or loadable kernel extensions
diff --git a/gcc/config/ia64/itanium1.md b/gcc/config/ia64/itanium1.md
index f9b7f91a9cd432f7e88dc407f2a752f1d4bed48f..0c30e017e3d880d7efb64c8b3e3279106f762b2b 100644
--- a/gcc/config/ia64/itanium1.md
+++ b/gcc/config/ia64/itanium1.md
@@ -131,7 +131,7 @@
        This is only worth to do when we are debugging the description
        and need to look more accurately at reservations of states.
 
-     o "ndfa" which makes automata with nondetermenistic reservation
+     o "ndfa" which makes automata with nondeterministic reservation
         by insns.
 
    o (define_reservation string string) names reservation (the first
diff --git a/gcc/config/ia64/itanium2.md b/gcc/config/ia64/itanium2.md
index a10971df7ded899c2e98791b74ff7704dd854153..c7db89e474489dcaee41e57da9b5d34bc77350bb 100644
--- a/gcc/config/ia64/itanium2.md
+++ b/gcc/config/ia64/itanium2.md
@@ -129,7 +129,7 @@
        This is only worth to do when we are debugging the description
        and need to look more accurately at reservations of states.
 
-     o "ndfa" which makes automata with nondetermenistic reservation
+     o "ndfa" which makes automata with nondeterministic reservation
         by insns.
 
    o (define_reservation string string) names reservation (the first
diff --git a/gcc/real.c b/gcc/real.c
index 68cb71ba8436de74a1f0593422d4b277dcfb047d..8c263e0097ba4209d86b06c9812ca47817c0f34e 100644
--- a/gcc/real.c
+++ b/gcc/real.c
@@ -4923,7 +4923,7 @@ real_copysign (REAL_VALUE_TYPE *r, const REAL_VALUE_TYPE *x)
 }
 
 /* Convert from REAL_VALUE_TYPE to MPFR.  The caller is responsible
-   for initializing and clearing the MPFR parmeter.  */
+   for initializing and clearing the MPFR parameter.  */
 
 void
 mpfr_from_real (mpfr_ptr m, const REAL_VALUE_TYPE *r)
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c
index d47a79dc67f5e94b68f837d38585321412adc3a8..c7ee8aabaecd3bb781a1f437c901b50310d92bb4 100644
--- a/gcc/tree-ssa-structalias.c
+++ b/gcc/tree-ssa-structalias.c
@@ -2421,7 +2421,7 @@ get_constraint_for_component_ref (tree t, VEC(ce_s, heap) **results)
  
   t = get_ref_base_and_extent (t, &bitpos, &bitsize, &bitmaxsize);
 
-  /* String constants's are readonly, so there is nothing to really do
+  /* String constants are readonly, so there is nothing to really do
      here.  */
   if (TREE_CODE (t) == STRING_CST)
     return;