From c0d4c09a02a40167e9de57f82c0033bb92e24167 Mon Sep 17 00:00:00 2001
From: Richard Hughes <richard@hughsie.com>
Date: Fri, 11 Dec 2020 16:20:19 +0000
Subject: [PATCH] Lower libcurl requirement further still

This allows us to build on Ubuntu 16.04!
---
 libfwupd/fwupd-client.c | 12 ++++++++++++
 meson.build             |  5 ++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/libfwupd/fwupd-client.c b/libfwupd/fwupd-client.c
index 8838d11c8..fd4a01800 100644
--- a/libfwupd/fwupd-client.c
+++ b/libfwupd/fwupd-client.c
@@ -65,7 +65,9 @@ typedef struct {
 
 typedef struct {
 	CURL				*curl;
+#ifdef HAVE_LIBCURL_7_56_0
 	curl_mime			*mime;
+#endif
 	struct curl_slist		*headers;
 } FwupdCurlHelper;
 
@@ -106,8 +108,10 @@ fwupd_client_curl_helper_free (FwupdCurlHelper *helper)
 {
 	if (helper->curl != NULL)
 		curl_easy_cleanup (helper->curl);
+#ifdef HAVE_LIBCURL_7_56_0
 	if (helper->mime != NULL)
 		curl_mime_free (helper->mime);
+#endif
 	if (helper->headers != NULL)
 		curl_slist_free_all (helper->headers);
 	g_free (helper);
@@ -4263,6 +4267,7 @@ fwupd_client_upload_bytes_async (FwupdClient *self,
 	/* build message */
 	if ((flags & FWUPD_CLIENT_UPLOAD_FLAG_ALWAYS_MULTIPART) > 0 ||
 	    signature != NULL) {
+#ifdef HAVE_LIBCURL_7_56_0
 		curl_mimepart *part;
 		helper->mime = curl_mime_init (helper->curl);
 		curl_easy_setopt (helper->curl, CURLOPT_MIMEPOST, helper->mime);
@@ -4274,6 +4279,13 @@ fwupd_client_upload_bytes_async (FwupdClient *self,
 			curl_mime_data (part, signature, CURL_ZERO_TERMINATED);
 			curl_mime_name (part, "signature");
 		}
+#else
+		g_task_return_new_error (task,
+					 FWUPD_ERROR,
+					 FWUPD_ERROR_INTERNAL,
+					 "not supported as libcurl is too old");
+		return;
+#endif
 	} else {
 		helper->headers = curl_slist_append (helper->headers, "Content-Type: text/plain");
 		curl_easy_setopt (helper->curl, CURLOPT_HTTPHEADER, helper->headers);
diff --git a/meson.build b/meson.build
index c8a797d0a..e5243cc6b 100644
--- a/meson.build
+++ b/meson.build
@@ -213,7 +213,10 @@ endif
 libjcat = dependency('jcat', version : '>= 0.1.0', fallback : ['libjcat', 'libjcat_dep'])
 libjsonglib = dependency('json-glib-1.0', version : '>= 1.1.1')
 valgrind = dependency('valgrind', required: false)
-libcurl = dependency('libcurl', version : '>= 7.61.0')
+libcurl = dependency('libcurl', version : '>= 7.47.0')
+if libcurl.version().version_compare('>= 7.56.0')
+  conf.set('HAVE_LIBCURL_7_56_0', '1')
+endif
 if libcurl.version().version_compare('>= 7.62.0')
   conf.set('HAVE_LIBCURL_7_62_0', '1')
 endif