win32,cygwin: try to clean up warnings

git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@604 6180dd3e-e324-4e3e-922d-17de1ae2f315
diff --git a/configure b/configure
index ef27c43..bd8ee26 100755
--- a/configure
+++ b/configure
@@ -648,6 +648,7 @@
 OS_FREEBSD_FALSE
 OS_FREEBSD_TRUE
 os_libs
+os_cflags
 GETOPT_O_FILES
 CPP
 OTOOL64
@@ -11615,6 +11616,8 @@
 #define SG_LIB_LINUX 1
 _ACEOF
 
+                os_cflags=''
+
                 os_libs=''
  ;;
         *-*-linux*)
@@ -11623,6 +11626,8 @@
 #define SG_LIB_LINUX 1
 _ACEOF
 
+                os_cflags=''
+
                 os_libs=''
  ;;
         *-*-freebsd*|*-*-kfreebsd*-gnu*)
@@ -11631,6 +11636,8 @@
 #define SG_LIB_FREEBSD 1
 _ACEOF
 
+                os_cflags=''
+
                 os_libs='-lcam'
 ;;
         *-*-solaris*)
@@ -11639,6 +11646,8 @@
 #define SG_LIB_SOLARIS 1
 _ACEOF
 
+                os_cflags=''
+
                 os_libs=''
 ;;
         *-*-osf*)
@@ -11647,6 +11656,8 @@
 #define SG_LIB_OSF1 1
 _ACEOF
 
+                os_cflags=''
+
                 os_libs=''
  ;;
         *-*-cygwin*)
@@ -11655,6 +11666,8 @@
 #define SG_LIB_WIN32 1
 _ACEOF
 
+                os_cflags='-Wno-char-subscripts'
+
                 os_libs=''
  ;;
         *-*-mingw*)
@@ -11668,6 +11681,8 @@
 #define SG_LIB_MINGW 1
 _ACEOF
 
+                os_cflags=''
+
                 os_libs=''
  ;;
         *)
@@ -11676,6 +11691,8 @@
 #define SG_LIB_LINUX 1
 _ACEOF
 
+                os_cflags=''
+
                 os_libs=''
  ;;
 esac