Lock cmake to <= 3.x.x to avoid backwards compatibility problems with 4.x.x

Author: williamyang98

.github/workflows/arm-macos.yml

@@ -42,7 +42,8 @@ jobs:
       run: brew update
 
     - name: Install dependencies 
-      run: brew bundle install --file=./toolchains/macos/Brewfile
+      shell: bash
+      run: ./toolchains/macos/install_packages.sh
 
     - name: Install python mako
       run: pip3 install mako --break-system-packages

.github/workflows/x86-macos.yml

@@ -42,7 +42,8 @@ jobs:
       run: brew update
 
     - name: Install dependencies 
-      run: brew bundle install --file=./toolchains/macos/Brewfile
+      shell: bash
+      run: ./toolchains/macos/install_packages.sh
 
     - name: Install python mako
       run: pip3 install mako

toolchains/macos/Brewfile

@@ -4,7 +4,7 @@ Clone the repository recursively so all the submodules are installed.
 
 ## Steps
 1. Update brew: ```brew update```
-2. Install packages: ```brew bundle install --file=./toolchains/macos/Brewfile```
+2. Install packages: ```./toolchains/macos/install_packages.sh```
 3. Install mako: ```pip3 install mako```
 4. Install volk: 
     - Change to volk: ```cd vendor/volk```

toolchains/macos/README.md

@@ -0,0 +1,10 @@
+#!/bin/sh
+# install specific version of cmake 3.x.x since 4.x.x is not backwards compatible with < 3.5
+# need to pass special flags and environment variables so brew treats local file as formula instead of a local cask or remote url
+wget -O ./cmake.rb https://raw.githubusercontent.com/Homebrew/homebrew-core/14ea6eca0e0b0b4f76940f1f7a929869d5a49930/Formula/c/cmake.rb
+HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source ./cmake.rb
+brew install fftw
+brew install pkg-config
+brew install glfw
+brew install zstd
+brew install ninja