X-Git-Url: https://git.draconx.ca/gitweb/liblbx.git/blobdiff_plain/be64118e899f438a3fc1667bef49d0d82e521e6e..fba9c8ad290c71471cdb8b52d1c5f0e4eb1fb83e:/configure.ac

diff --git a/configure.ac b/configure.ac
index 8458e71..48c392c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,12 +9,26 @@ AC_PROG_CC_C99
 AC_HEADER_ASSERT
 AC_C_BIGENDIAN
 
+# pkg-config
+PKG_INIT
+if test x"$PKG_CONFIG" = x""; then
+	AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
+fi
+
 dnl Dirty hack to disable useless C++/Fortran checks
 AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG], [:])
 AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG], [:])
 
 AC_PROG_LIBTOOL
 
+# libpng
+PKG_CHECK(libpng, yes, [PNG], [libpng-config], [png.h], png,
+          png_create_write_struct, libpng, [http://www.libpng.org/])
+AC_SUBST(PNG_CFLAGS)
+AC_SUBST(PNG_LIBS)
+
+AM_CONDITIONAL([BUILD_LBXIMG], [test x"$have_libpng" = x"yes"])
+
 AC_CONFIG_FILES([
 	Makefile
 	src/Makefile