From: Jim Blandy <jimb@codesourcery.com>
Date: Fri, 11 Mar 2005 21:02:02 +0000 (+0000)
Subject: Avoid warnings due to the use of -Wuninitialized without -O.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a3b362c440ce898c2777e0b2a3d1684787f126a9;p=binutils-gdb.git

Avoid warnings due to the use of -Wuninitialized without -O.
* configure.ac (build_warnings): Include -Wuninitialized only if
CFLAGS is unset at configure time, or CFLAGS is set and includes
some -O option other than -O0.
* configure: Regenerated.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 3d2dc2ff6bb..a414ab091d1 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
 2005-03-11  Jim Blandy  <jimb@redhat.com>
 
+	Avoid warnings due to the use of -Wuninitialized without -O.
+	* configure.ac (build_warnings): Include -Wuninitialized only if
+	CFLAGS is unset at configure time, or CFLAGS is set and includes
+	some -O option other than -O0.
+	* configure: Regenerated.
+
 	* mips-tdep.c (show_mips_abi): Change calling conventions to match
 	those expected by add_setshow_enum_cmd.  Use 'file' argument as
 	appropriate.
diff --git a/gdb/configure b/gdb/configure
index d77ab938cbb..d6a9e03450e 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -19655,8 +19655,21 @@ 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-nonliteral \
+-Wformat -Wparentheses -Wpointer-arith -Wformat-nonliteral \
 -Wunused-label -Wunused-function"
+
+# 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-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 113159e412b..de30e6a88d9 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1088,8 +1088,21 @@ AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
 # 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-nonliteral \
+-Wformat -Wparentheses -Wpointer-arith -Wformat-nonliteral \
 -Wunused-label -Wunused-function"
+
+# 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-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual