sim/common/ChangeLog:

2005-02-28  Jim Blandy  <jimb@redhat.com>

	* aclocal.m4 (SIM_AC_OPTION_WARNINGS): Don't include
	-Wuninitialized in the default list of build warnings if CFLAGS is
	set, and doesn't include -O.  (Using -Wuninitialized without
	optimization produces a warning, which interferes with compilation
	with -Werror.)

sim/ChangeLog:
2005-02-28  Jim Blandy  <jimb@redhat.com>

	* d10v/configure.ac, igen/configure.ac, m68hc11/configure.ac,
	mips/configure.ac, mn10300/configure.ac, v850/configure.ac:
	Regenerated, after change to common/aclocal.m4.

9 files changed, 98 insertions, 7 deletions

diff --git a/sim/ChangeLog b/sim/ChangeLog
index 820f6b85ebd..61dfc15517d 100644
--- a/sim/ChangeLog
+++ b/sim/ChangeLog
@@ -1,3 +1,9 @@
+2005-02-28  Jim Blandy  <jimb@redhat.com>
+
+	* d10v/configure.ac, igen/configure.ac, m68hc11/configure.ac,
+	mips/configure.ac, mn10300/configure.ac, v850/configure.ac:
+	Regenerated, after change to common/aclocal.m4.
+
 2005-02-18  Corinna Vinschen  <vinschen@redhat.com>
 
 	* iq2000: New target subdirectory.
diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index a22cc4f0c9a..a2ba15e560a 100644
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,3 +1,11 @@
+2005-02-28  Jim Blandy  <jimb@redhat.com>
+
+	* aclocal.m4 (SIM_AC_OPTION_WARNINGS): Don't include
+	-Wuninitialized in the default list of build warnings if CFLAGS is
+	set, and doesn't include -O.  (Using -Wuninitialized without
+	optimization produces a warning, which interferes with compilation
+	with -Werror.)
+	
 2005-02-21  Jim Blandy  <jimb@redhat.com>
 
 	* callback.c (os_fstat): Don't declare 't' unless it's used.
diff --git a/sim/common/aclocal.m4 b/sim/common/aclocal.m4
index 07ae512b5c9..2f0d9919840 100644
--- a/sim/common/aclocal.m4
+++ b/sim/common/aclocal.m4
@@ -790,7 +790,18 @@ AC_DEFUN(SIM_AC_OPTION_WARNINGS,
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith"
+# GCC supports -Wuninitialized only with -O or -On, n != 0.
+if test x${CFLAGS+set} = xset; then
+  case "${CFLAGS}" in
+    *"-O0"* ) ;;
+    *"-O"* )
+      build_warnings="${build_warnings} -Wuninitialized"
+    ;;
+  esac
+else
+  build_warnings="${build_warnings} -Wuninitialized"
+fi
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
diff --git a/sim/d10v/configure b/sim/d10v/configure
index 8c63839818b..261af45cb93 100755
--- a/sim/d10v/configure
+++ b/sim/d10v/configure
@@ -7033,7 +7033,18 @@ sim_link_links="${sim_link_links} targ-vals.def"
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith"
+# GCC supports -Wuninitialized only with -O or -On, n != 0.
+if test x${CFLAGS+set} = xset; then
+  case "${CFLAGS}" in
+    *"-O0"* ) ;;
+    *"-O"* )
+      build_warnings="${build_warnings} -Wuninitialized"
+    ;;
+  esac
+else
+  build_warnings="${build_warnings} -Wuninitialized"
+fi
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
diff --git a/sim/igen/configure b/sim/igen/configure
index 139d10b844c..18d3f28a1b4 100755
--- a/sim/igen/configure
+++ b/sim/igen/configure
@@ -2343,7 +2343,18 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith"
+# GCC supports -Wuninitialized only with -O or -On, n != 0.
+if test x${CFLAGS+set} = xset; then
+  case "${CFLAGS}" in
+    *"-O0"* ) ;;
+    *"-O"* )
+      build_warnings="${build_warnings} -Wuninitialized"
+    ;;
+  esac
+else
+  build_warnings="${build_warnings} -Wuninitialized"
+fi
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
diff --git a/sim/m68hc11/configure b/sim/m68hc11/configure
index 1a66de84e3c..a7792853dcc 100755
--- a/sim/m68hc11/configure
+++ b/sim/m68hc11/configure
@@ -7386,7 +7386,18 @@ fi;
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith"
+# GCC supports -Wuninitialized only with -O or -On, n != 0.
+if test x${CFLAGS+set} = xset; then
+  case "${CFLAGS}" in
+    *"-O0"* ) ;;
+    *"-O"* )
+      build_warnings="${build_warnings} -Wuninitialized"
+    ;;
+  esac
+else
+  build_warnings="${build_warnings} -Wuninitialized"
+fi
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
diff --git a/sim/mips/configure b/sim/mips/configure
index 4ac0d0a7984..eb574619c91 100755
--- a/sim/mips/configure
+++ b/sim/mips/configure
@@ -7396,7 +7396,18 @@ fi;
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith"
+# GCC supports -Wuninitialized only with -O or -On, n != 0.
+if test x${CFLAGS+set} = xset; then
+  case "${CFLAGS}" in
+    *"-O0"* ) ;;
+    *"-O"* )
+      build_warnings="${build_warnings} -Wuninitialized"
+    ;;
+  esac
+else
+  build_warnings="${build_warnings} -Wuninitialized"
+fi
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
diff --git a/sim/mn10300/configure b/sim/mn10300/configure
index 30475afc5a7..b7f37777422 100755
--- a/sim/mn10300/configure
+++ b/sim/mn10300/configure
@@ -7392,7 +7392,18 @@ fi;
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith"
+# GCC supports -Wuninitialized only with -O or -On, n != 0.
+if test x${CFLAGS+set} = xset; then
+  case "${CFLAGS}" in
+    *"-O0"* ) ;;
+    *"-O"* )
+      build_warnings="${build_warnings} -Wuninitialized"
+    ;;
+  esac
+else
+  build_warnings="${build_warnings} -Wuninitialized"
+fi
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
diff --git a/sim/v850/configure b/sim/v850/configure
index c63b3c66fe3..665ece9d4ca 100755
--- a/sim/v850/configure
+++ b/sim/v850/configure
@@ -7390,7 +7390,18 @@ fi;
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized"
+-Wformat -Wparentheses -Wpointer-arith"
+# GCC supports -Wuninitialized only with -O or -On, n != 0.
+if test x${CFLAGS+set} = xset; then
+  case "${CFLAGS}" in
+    *"-O0"* ) ;;
+    *"-O"* )
+      build_warnings="${build_warnings} -Wuninitialized"
+    ;;
+  esac
+else
+  build_warnings="${build_warnings} -Wuninitialized"
+fi
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
 # -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual