configure.in: Quote $CFLAGS when assigning to another variable.

diff --git a/configure.in b/configure.in
index 3db4db3..c46049a 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -345,13 +345,13 @@ have_net_ip_vs_h="no"
 have_ip_vs_h="no"
 if test "x$ac_system" = "xLinux"
 then
-       SAVE_CFLAGS=$CFLAGS
+       SAVE_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $KERNEL_CFLAGS"
 
        AC_CHECK_HEADERS(net/ip_vs.h, [have_net_ip_vs_h="yes"])
        AC_CHECK_HEADERS(ip_vs.h, [have_ip_vs_h="yes"])
 
-       CFLAGS=$SAVE_CFLAGS
+       CFLAGS="$SAVE_CFLAGS"
 fi
 
 # For quota module
@@ -1469,7 +1469,7 @@ then
 fi
 if test "x$with_libiptc" = "xyes"
 then
-       SAVE_CFLAGS=$CFLAGS
+       SAVE_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $KERNEL_CFLAGS"
 
        AC_CHECK_HEADERS(linux/netfilter_ipv4/ip_tables.h linux/netfilter_ipv6/ip6_tables.h, [],
@@ -1481,7 +1481,7 @@ then
 #include "$srcdir/src/owniptc/ipt_kernel_headers.h"
        ])
 
-       CFLAGS=$SAVE_CFLAGS
+       CFLAGS="$SAVE_CFLAGS"
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBIPTC, test "x$with_libiptc" = "xyes")
 AM_CONDITIONAL(BUILD_WITH_OWN_LIBIPTC, test "x$with_own_libiptc" = "xyes")
@@ -1491,7 +1491,7 @@ then
 fi
 if test "x$with_libiptc" = "xyes"
 then
-       SAVE_CFLAGS=$CFLAGS
+       SAVE_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $KERNEL_CFLAGS"
 
        AC_CHECK_TYPES([iptc_handle_t, ip6tc_handle_t], [], [],
@@ -1505,7 +1505,7 @@ then
 #endif
        ])
 
-       CFLAGS=$SAVE_CFLAGS
+       CFLAGS="$SAVE_CFLAGS"
 fi
 # }}}
 
@@ -1816,7 +1816,7 @@ AC_ARG_WITH(libnetlink, [AS_HELP_STRING([--with-libnetlink@<:@=PREFIX@:>@], [Pat
 ])
 if test "x$with_libnetlink" = "xyes"
 then
-       SAVE_CFLAGS=$CFLAGS
+       SAVE_CFLAGS="$CFLAGS"
        CFLAGS="$CFLAGS $with_libnetlink_cflags"
 
        with_libnetlink="no (libnetlink.h not found)"
@@ -2254,8 +2254,8 @@ AC_SUBST(PERL, "$perl_interpreter")
 if test "x$with_libperl" = "xyes" \
        && test -n "$perl_interpreter"
 then
-  SAVE_CFLAGS=$CFLAGS
-  SAVE_LDFLAGS=$LDFLAGS
+  SAVE_CFLAGS="$CFLAGS"
+  SAVE_LDFLAGS="$LDFLAGS"
 dnl ARCHFLAGS="" -> disable multi -arch on OSX (see Config_heavy.pl:fetch_string)
   PERL_CFLAGS=`ARCHFLAGS="" $perl_interpreter -MExtUtils::Embed -e ccopts`
   PERL_LDFLAGS=`ARCHFLAGS="" $perl_interpreter -MExtUtils::Embed -e ldopts`
@@ -2292,8 +2292,8 @@ dnl ARCHFLAGS="" -> disable multi -arch on OSX (see Config_heavy.pl:fetch_string
          with_libperl="no"
   fi
 
-  CFLAGS=$SAVE_CFLAGS
-  LDFLAGS=$SAVE_LDFLAGS
+  CFLAGS="$SAVE_CFLAGS"
+  LDFLAGS="$SAVE_LDFLAGS"
 else if test -z "$perl_interpreter"; then
   with_libperl="no (no perl interpreter found)"
   c_cv_have_libperl="no"
@@ -2302,8 +2302,8 @@ AM_CONDITIONAL(BUILD_WITH_LIBPERL, test "x$with_libperl" = "xyes")
 
 if test "x$with_libperl" = "xyes"
 then
-       SAVE_CFLAGS=$CFLAGS
-       SAVE_LDFLAGS=$LDFLAGS
+       SAVE_CFLAGS="$CFLAGS"
+       SAVE_LDFLAGS="$LDFLAGS"
        CFLAGS="$CFLAGS $PERL_CFLAGS"
        LDFLAGS="$LDFLAGS $PERL_LDFLAGS"
 
@@ -2331,14 +2331,14 @@ then
                AC_DEFINE(HAVE_PERL_ITHREADS, 1, [Define if Perl supports ithreads.])
        fi
 
-       CFLAGS=$SAVE_CFLAGS
-       LDFLAGS=$SAVE_LDFLAGS
+       CFLAGS="$SAVE_CFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
 fi
 
 if test "x$with_libperl" = "xyes"
 then
-       SAVE_CFLAGS=$CFLAGS
-       SAVE_LDFLAGS=$LDFLAGS
+       SAVE_CFLAGS="$CFLAGS"
+       SAVE_LDFLAGS="$LDFLAGS"
        # trigger an error if Perl_load_module*() uses __attribute__nonnull__(3)
        # (see issues #41 and #42)
        CFLAGS="$CFLAGS $PERL_CFLAGS -Wall -Werror"
@@ -2365,16 +2365,16 @@ then
                )
        )
 
-       CFLAGS=$SAVE_CFLAGS
-       LDFLAGS=$SAVE_LDFLAGS
+       CFLAGS="$SAVE_CFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
 fi
 AM_CONDITIONAL(HAVE_BROKEN_PERL_LOAD_MODULE,
                test "x$c_cv_have_broken_perl_load_module" = "xyes")
 
 if test "x$with_libperl" = "xyes"
 then
-       SAVE_CFLAGS=$CFLAGS
-       SAVE_LDFLAGS=$LDFLAGS
+       SAVE_CFLAGS="$CFLAGS"
+       SAVE_LDFLAGS="$LDFLAGS"
        CFLAGS="$CFLAGS $PERL_CFLAGS"
        LDFLAGS="$LDFLAGS $PERL_LDFLAGS"
 
@@ -2394,8 +2394,8 @@ then
                                  [Define if Perl's struct mgvtbl has member svt_local.])
        fi
 
-       CFLAGS=$SAVE_CFLAGS
-       LDFLAGS=$SAVE_LDFLAGS
+       CFLAGS="$SAVE_CFLAGS"
+       LDFLAGS="$SAVE_LDFLAGS"
 fi
 # }}}