+digip.org/jansson (#390)

* first attempt

* use gcc on linux

---------

Co-authored-by: Max Howell <mxcl@me.com>

projects/digip.org/jansson/fixture.c

@@ -0,0 +1,11 @@
+#include <jansson.h>
+#include <assert.h>
+int main()
+{
+  json_t *json;
+  json_error_t error;
+  json = json_loads("\"foo\"", JSON_DECODE_ANY, &error);
+  assert(json && json_is_string(json));
+  json_decref(json);
+  return 0;
+}

projects/digip.org/jansson/package.yml

@@ -0,0 +1,25 @@
+distributable:
+  url: https://github.com/akheron/jansson/releases/download/v{{ version.raw }}/jansson-{{ version.raw }}.tar.gz
+  strip-components: 1
+
+versions:
+  github: akheron/jansson/tags
+  strip: /^v/
+
+build:
+  dependencies:
+    linux:
+      gnu.org/gcc: '*'
+    darwin:
+      tea.xyz/gx/cc: c99
+    tea.xyz/gx/make: '*'
+  script: |
+    ./configure --prefix="{{prefix}}"
+    make --jobs {{ hw.concurrency }} install
+
+test:
+  dependencies:
+    tea.xyz/gx/cc: c99
+  script: |
+    cc fixture.c -ljansson
+    ./a.out