aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--gnu/packages/cpp.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index 00e006928e..45d3faeafb 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -334,7 +334,8 @@ as ordering relation.")
(build-system cmake-build-system)
(arguments
'(#:configure-flags
- (list (string-append "-DJSON_TestDataDirectory="
+ (list "-DJSON_MultipleHeaders=ON" ; For json_fwd.hpp.
+ (string-append "-DJSON_TestDataDirectory="
(assoc-ref %build-inputs "json_test_data")))
#:phases (modify-phases %standard-phases
;; XXX: When tests are enabled, the install phase will cause