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-rw-r--r--Build/source/libs/libpng/configure.ac9
1 files changed, 2 insertions, 7 deletions
diff --git a/Build/source/libs/libpng/configure.ac b/Build/source/libs/libpng/configure.ac
index 62fa5f666bc..c4b0f2ac225 100644
--- a/Build/source/libs/libpng/configure.ac
+++ b/Build/source/libs/libpng/configure.ac
@@ -53,16 +53,11 @@ AM_CONDITIONAL([build], [test "x$enable_build" != xno])
# don't run any tests for '--disable-build', there may be no zlib.
if test "x$enable_build" != xno; then
-save_CPPFLAGS=$CPPFLAGS
-save_LIBS=$LIBS
-
-CPPFLAGS="$CPPFLAGS $ZLIB_INCLUDES"
-LIBS="$ZLIB_LIBS $LIBS"
+KPSE_ADD_FLAGS([zlib])
AC_CHECK_FUNC([zlibVersion], , [AC_ERROR([zlib not found])])
-CPPFLAGS=$save_CPPFLAGS
-LIBS=$save_LIBS
+KPSE_RESTORE_FLAGS
fi