fixes to the static compilation case for sdl

After the next commit, pkg-config could be used for the shared library
configuration case and sdl-config for static libraries.  So I prepare
the test here by doing two changes:

at the same time I remove useless backslashes from the invocation of
grep;

1) fixing a typo ($sd_cflags).  The typo has been there since commit
1ac88f2 (remove sdl_static. Just do the right thing if static is yes,
2009-07-27).

2) fixing an erroneous "test `... | grep > /dev/null`" idiom that would
never succeed since grep's output would be empty;

3) checking the status code after executing sdl-config --static --libs;
this is needed for the next patch only.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/configure b/configure
index a287efaec9..eab0cb4945 100755
--- a/configure
+++ b/configure
@@ -1010,12 +1010,12 @@ EOF
       fi
     fi
 
-    # static link with sdl ?
+    # static link with sdl ? (note: sdl.pc's --static --libs is broken)
     if test "$sdl" = "yes" -a "$static" = "yes" ; then
       sdl_libs=`sdl-config --static-libs 2>/dev/null`
-      if test `sdl-config --static-libs 2>/dev/null | grep \\\-laa > /dev/null` ; then
+      if test $? = 0 && echo $sdl_libs | grep -- -laa > /dev/null; then
          sdl_libs="$sdl_libs `aalib-config --static-libs >2 /dev/null`"
-         sdl_cflags="$sd_cflags `aalib-config --cflags >2 /dev/null`"
+         sdl_cflags="$sdl_cflags `aalib-config --cflags >2 /dev/null`"
       fi
       if compile_prog "$sdl_cflags" "$sdl_libs" ; then
 	: