Austin English : configure: Fix libpng detection on OpenBSD.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: fe8879e6d1fd70ae559ce8ba252238cf485c36ea
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=fe8879e6d1fd70ae559ce8ba252238cf485c36ea

Author: Austin English <austinenglish at gmail.com>
Date:   Sun Dec 28 19:10:19 2008 -0600

configure: Fix libpng detection on OpenBSD.

---

 configure    |    2 +-
 configure.ac |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 96b7d11..31858ad 100755
--- a/configure
+++ b/configure
@@ -16714,7 +16714,7 @@ if test "${ac_cv_lib_soname_png+set}" = set; then
   $as_echo_n "(cached) " >&6
 else
   ac_check_soname_save_LIBS=$LIBS
-LIBS="-lpng -lm $LIBS"
+LIBS="-lpng -lm -lz $LIBS"
   cat >conftest.$ac_ext <<_ACEOF
 /* confdefs.h.  */
 _ACEOF
diff --git a/configure.ac b/configure.ac
index 6dcd72f..6bbb4b9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1216,7 +1216,7 @@ WINE_WARNING_WITH(jpeg,[test "x$ac_cv_lib_soname_jpeg" = "x"],
 dnl **** Check for libpng ****
 if test "$ac_cv_header_png_h" = "yes"
 then
-    WINE_CHECK_SONAME(png,png_create_read_struct,,,-lm,[[libpng[[0-9]]*]])
+    WINE_CHECK_SONAME(png,png_create_read_struct,,,-lm -lz,[[libpng[[0-9]]*]])
 fi
 WINE_WARNING_WITH(png,[test "x$ac_cv_lib_soname_png" = "x"],
                  [libpng ${notice_platform}development files not found, PNG won't be supported.])