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-rw-r--r--configure.ac7
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 6b73b9179f8..83073c3fc9d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1179,6 +1179,13 @@ if test "x$enable_gbm" = xyes; then
if test "x$enable_shared_glapi" = xno; then
AC_MSG_ERROR([gbm_dri requires --enable-shared-glapi])
fi
+ else
+ # Strictly speaking libgbm does not require --enable-dri, although
+ # both of its backends do. Thus one can build libgbm without any
+ # backends if --disable-dri is set.
+ # To avoid unnecessary complexity of checking if at least one backend
+ # is available when building, just mandate --enable-dri.
+ AC_MSG_ERROR([gbm requires --enable-dri])
fi
fi
AM_CONDITIONAL(HAVE_GBM, test "x$enable_gbm" = xyes)