Refactor CMake buildsystem to be portable and modern

Aggreggate source files directly in the target instead of a proxy
variable.

Install CMake package config files in order to allow the project to be
found via `find_package()` by dependents.

Replace hard coded SIMD compiler flags with configurable options. Retain
the current GCC/Clang flags as defaults for these compilers. Add default
SIMD compiler flags for MSVC.

Remove hard coded compiler flags (including -fPIC). These are not
portable and should be set by the toolchain file or on the CLI.

- Guard ASM sources with triplet compatibility checks.
- Remove the `BLAKE3_STATIC` option in favor of [`BUILD_SHARED_LIBS`].

[`BUILD_SHARED_LIBS`]: https://cmake.org/cmake/help/v3.9/variable/BUILD_SHARED_LIBS.html

1 files changed, 18 insertions, 12 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 06cbaa7..603a82b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -278,17 +278,23 @@ jobs:
 
   # CMake build test (Library only), current macOS/Linux only.
   cmake_build:
-      name: CMake ${{ matrix.os }}
-      runs-on: ${{ matrix.os }}
-      strategy:
-        fail-fast: false
-        matrix:
-          os: ["ubuntu-latest", "macOS-latest"]
-      steps:
+    name: CMake ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ["ubuntu-latest", "macOS-latest", "windows-latest"]
+        compiler: [gcc, clang, cl]
+        exclude:
+          - os: windows-latest
+            compiler: gcc
+          - os: ubuntu-latest
+            compiler: msvc
+          - os: macOS-latest
+            compiler: msvc
+    steps:
       - uses: actions/checkout@v3
       - name: CMake generation
-        run: cmake . -Bbuild
-        working-directory: ./c
-      - name: CMake build
-        run: cmake --build build/
-        working-directory: ./c
+        run: cmake -S c -B c/build -DCMAKE_INSTALL_PREFIX=${{github.workspace}}/target
+      - name: CMake build / install
+        run: cmake --build c/build --target install