Add GSL (#13)

* Build gsl
* Add gh actions

.github/workflows/unit_tests.yml

@@ -0,0 +1,78 @@
+name: Test build
+on:
+  workflow_dispatch:
+  push:
+    branches: ["develop"]
+  pull_request:
+    branches:
+      - "develop"
+
+jobs:
+  debian:
+    name: Debian 12
+    runs-on: ubuntu-latest
+    container: ghcr.io/educelab/ci-docker:base.12.1
+    if: ${{ github.event_name }} == "merge_request_event" || !(${{ github.ref }} && $CI_OPEN_MERGE_REQUESTS) || ${{ github.ref }}
+    timeout-minutes: 180
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Build vc-deps
+      run: |
+        cmake -S . -B build/ -GNinja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_MESSAGE=NEVER
+        cmake --build build/
+
+  macos:
+    name: macOS
+    runs-on: macos-14
+    timeout-minutes: 180
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Homebrew dependencies
+        run: |
+          brew update
+          brew unlink libtiff libpng
+          brew install ninja
+
+      - name: Remove conflicting packages
+        run: |
+          sudo rm -rf /Library/Frameworks/Mono.framework/
+
+      - name: Use the Command Line Tools
+        run: |
+          sudo xcode-select -s /Library/Developer/CommandLineTools
+
+      - name: Build vc-deps
+        run: |
+          cmake -S . -B build/ -GNinja -GNinja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_MESSAGE=NEVER
+          cmake --build build/
+
+  macos_universal:
+    name: macOS Universal
+    runs-on: macos-14
+    timeout-minutes: 180
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Homebrew dependencies
+        run: |
+          brew update
+          brew unlink libtiff libpng
+          brew install ninja
+
+      - name: Remove conflicting packages
+        run: |
+          sudo rm -rf /Library/Frameworks/Mono.framework/
+
+      - name: Use the Command Line Tools
+        run: |
+          sudo xcode-select -s /Library/Developer/CommandLineTools
+
+      - name: Build vc-deps
+        run: |
+          cmake -S . -B build/ -GNinja -GNinja -DCMAKE_BUILD_TYPE=Release -DBUILD_MACOS_MULTIARCH=ON -DCMAKE_INSTALL_MESSAGE=NEVER
+          cmake --build build/

CMakeLists.txt

@@ -55,6 +55,9 @@ endif()
 # include(InstallSDK-macOS)
 
 #### Required libs ####
+# gsl
+include(BuildGSL)
+
 # zlib
 include(BuildZLIB)
 

cmake/BuildBoost.cmake

@@ -1,5 +1,14 @@
 option(VCDEPS_BUILD_BOOST "Build Boost" ON)
 
+# Required Boost components
+set(VCDEPS_BOOST_COMPONENTS
+    program_options
+    system
+)
+
+if(VCDEPS_BUILD_BOOST)
+string(REPLACE ";" "," BOOST_BUILD_LIBS "${VCDEPS_BOOST_COMPONENTS}")
+
 # Set Boost build type to match provided release type
 if(CMAKE_BUILD_TYPE MATCHES DEBUG)
     set(BOOST_LIB_TYPE debug)
@@ -33,15 +42,6 @@ elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 endif()
 set(BOOST_TOOLSET ${BOOST_TOOLSET_AUTO} CACHE STRING "Boost Build toolset")
 
-# Required Boost components
-set(VCDEPS_BOOST_COMPONENTS
-    program_options
-    system
-)
-
-if(VCDEPS_BUILD_BOOST)
-string(REPLACE ";" "," BOOST_BUILD_LIBS "${VCDEPS_BOOST_COMPONENTS}")
-
 # Compiler flags
 set(BOOST_CXX_FLAGS "cxxflags=-std=c++${CMAKE_CXX_STANDARD} ${BOOST_ARCH}")
 

cmake/BuildGSL.cmake

@@ -0,0 +1,36 @@
+option(VCDEPS_BUILD_GSL "Build GNU Scientific Library" ON)
+
+if(VCDEPS_BUILD_GSL)
+# make sure the prefix is an absolute path
+file(REAL_PATH ${CMAKE_INSTALL_PREFIX} GSL_INSTALL_PREFIX EXPAND_TILDE)
+
+# enable PIC
+if(CMAKE_POSITION_INDEPENDENT_CODE)
+    set(GSL_WITH_PIC "--with-pic")
+endif()
+
+# (macOS) universal libraries
+if(BUILD_MACOS_MULTIARCH)
+    set(GSL_CFLAGS "-arch x86_64 -arch arm64")
+endif()
+
+# build and install
+externalproject_add(
+    gsl
+    DEPENDS ${GLOBAL_DEPENDS}
+    URL https://ftpmirror.gnu.org/gsl/gsl-2.8.tar.gz
+    URL_HASH SHA512=4427f6ce59dc14eabd6d31ef1fcac1849b4d7357faf48873aef642464ddf21cc9b500d516f08b410f02a2daa9a6ff30220f3995584b0a6ae2f73c522d1abb66b
+    DOWNLOAD_NO_PROGRESS true
+    DOWNLOAD_EXTRACT_TIMESTAMP ON
+    PATCH_COMMAND ${GSL_PATCH_CMD}
+    CONFIGURE_COMMAND 
+        ${CMAKE_COMMAND} -E env CFLAGS=${GSL_CFLAGS} 
+        ./configure --prefix=${GSL_INSTALL_PREFIX} ${GSL_WITH_PIC}
+    BUILD_COMMAND make && make install
+    BUILD_IN_SOURCE true
+    INSTALL_COMMAND ""
+)
+
+else()
+    add_custom_target(gsl)
+endif()