commit b387ace8e6f1ef7c3a079774c0c3f4b66c702665
author Vignesh Venkatasubramanian <vigneshv@google.com> Fri Sep 02 16:06:12 2022 -0700
committer Vignesh Venkatasubramanian <vigneshvg@users.noreply.github.com> Fri Sep 02 21:02:16 2022 -0700
tree 4cbfaa6e66e0756b8b915dac43284d0e21b8c01e
parent 64b8cf10a055247a0c026c4485f9b6edc127fd0e

android_jni: Set cmake version to 3.18.1

While the CMakeLists.txt lists the minimum cmake version required
as 3.13, the Android SDK contains snapshots of cmake only at
certain versions.

As of now, it contains 3.10.1 and 3.18.1. So if we don't specify
the cmake version in build.gradle, it uses 3.10.1 by default and
it fails to build because it does not match the minimum required
version of 3.13.

So by setting it to 3.18.1, we can ensure that the build runs
successfully using the cmake snapshot that is bundled with the
Android SDK.

android_jni/avifandroidjni/build.gradle

diff --git a/android_jni/avifandroidjni/build.gradle b/android_jni/avifandroidjni/build.gradle
index 349b312..707a32d 100644
--- a/android_jni/avifandroidjni/build.gradle
+++ b/android_jni/avifandroidjni/build.gradle
@@ -24,6 +24,9 @@
     }
     externalNativeBuild {
         cmake {
+            // Lowest version of cmake that is available on the Android SDK that
+            // is greater than or equal to 3.13 is 3.18.1.
+            version '3.18.1'
             path 'src/main/jni/CMakeLists.txt'
         }
     }