[brooklyn-ui] branch duncangrant-arm64-fix created (now c552d64d)

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duncangrant pushed a change to branch duncangrant-arm64-fix
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      at c552d64d Update README.md

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     new c552d64d Update README.md

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[brooklyn-ui] 01/01: Update README.md

[du...@apache.org]

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duncangrant pushed a commit to branch duncangrant-arm64-fix
in repository https://gitbox.apache.org/repos/asf/brooklyn-ui.git

commit c552d64dbd686d374c97ee876d55cf2dda7f5621
Author: Duncan Grant <du...@gmail.com>
AuthorDate: Tue Apr 19 14:21:26 2022 +0100

    Update README.md
---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 3264e5cc..4406ccef 100644
--- a/README.md
+++ b/README.md
@@ -109,6 +109,15 @@ or the `jpeg` compilation failing (note this one can be a non-fatal error at the
 
 Consult the list above of dependencies to install, and make sure you wipe the `node_modules` dirs.
 
+If libpng still seems to be missing and you are using an M1 Mac then the following lines may help.
+
+```bash
+arch -x86_64 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+arch -x86_64 /usr/local/bin/brew install libpng
+```
+
+This installs th x86 version of brew and uses that to install the x86 version of the libpng library.  This won't affect your arm64 brew or anything installed using it.
+
 If it still fails, try installing `nvm` (curl-to-bash) then `nvm ls-remote` and `nvm install v12.9.0` (or other latest).
 Then retry the `mvn` build; even though `mvn` uses a different version of `node` and `npm`, simply installing the latest
 node version sometimes sorts out errors.