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-rw-r--r--configure.ac3
1 files changed, 3 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index ef5f7f78..0e91547f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -234,6 +234,9 @@ AC_CHECK_LIB(jpeg, jpeg_destroy_decompress,
AC_MSG_ERROR([libjpeg not found]))
AC_SUBST(JPEG_LIBS)
+AC_CHECK_LIB(z, deflate, Z_LIBS='-lz', AC_MSG_ERROR([zlib not found]))
+AC_SUBST(Z_LIBS)
+
dnl ===========================================================================
dnl check compiler flags