[Zstd] Use meson to configure the build

Z/Zstd/build_tarballs.jl

@@ -4,22 +4,29 @@ name = "Zstd"
 version = v"1.4.4"
 
 sources = [
-    "https://github.com/facebook/zstd/releases/download/v$version/zstd-$version.tar.gz" =>
-    "59ef70ebb757ffe74a7b3fe9c305e2ba3350021a918d168a046c6300aeea9315",
-    "./bundled"
+    ArchiveSource("https://github.com/facebook/zstd/releases/download/v$version/zstd-$version.tar.gz",
+                  "59ef70ebb757ffe74a7b3fe9c305e2ba3350021a918d168a046c6300aeea9315"),
+    DirectorySource("./bundled"),
 ]
 
 script = raw"""
 cd ${WORKSPACE}/srcdir/zstd-*/
 atomic_patch -p1 ../patches/timefn_h_windows.patch
 mkdir build-zstd && cd build-zstd
-if [[ "${target}" == aarch64-linux-gnu ]]; then
+if [[ "${target}" == i686-linux-musl ]]; then
+    # We can't run executables for i686-linux-musl in the BB environment
+    sed -i "s/needs_exe_wrapper = false/needs_exe_wrapper = true/" "${MESON_TARGET_TOOLCHAIN}"
+elif [[ "${target}" == aarch64-linux-gnu ]]; then
     # Work around https://github.com/facebook/zstd/issues/1872
-    export CFLAGS=-D_POSIX_C_SOURCE
+    #
+    #   ../programs/util.c:76:29: error: ‘stat_t’ has no member named ‘st_mtim’
+    #            timebuf[1] = statbuf->st_mtim;
+    #                                ^
+    sed -i "s/c_args = \[\]/c_args = ['-D_POSIX_C_SOURCE']/" "${MESON_TARGET_TOOLCHAIN}"
 fi
-cmake -DCMAKE_INSTALL_PREFIX=${prefix} -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TARGET_TOOLCHAIN} -DCMAKE_BUILD_TYPE=Release ../build/cmake/
-make -j${nproc}
-make install
+meson --cross-file="${MESON_TARGET_TOOLCHAIN}" ../build/meson/
+ninja -j${nproc}
+ninja install
 """
 
 platforms = supported_platforms()
@@ -30,6 +37,6 @@ products = [
     ExecutableProduct("zstdmt", :zstdmt),
 ]
 
-dependencies = []
+dependencies = Dependency[]
 
 build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies)