diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 9f81b11..233d3dc 100644 --- a/configure.ac +++ b/configure.ac @@ -855,7 +855,14 @@ AC_SUBST(TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR) dnl ================== dnl libpng -PKG_CHECK_MODULES(PNG, [libpng], have_libpng=yes, have_libpng=no) +AC_ARG_ENABLE(libpng, AS_HELP_STRING([--enable-libpng], [Build support for libpng (default: auto)]), + [have_libpng=$enableval], [have_libpng=auto]) + +case x$have_libpng in + xyes) PKG_CHECK_MODULES(PNG, [libpng]) ;; + xno) ;; + *) PKG_CHECK_MODULES(PNG, [libpng], have_libpng=yes, have_libpng=no) ;; +esac if test x$have_libpng = xyes; then AC_DEFINE([HAVE_LIBPNG], [1], [Whether we have libpng]) |