Fix clock_gettime errors on old macOS machines (#134)

Our GCC shards did not correctly configure themselves to target the
oldest supported macOS build.  Instead, because GCC doesn't fully
understand how to use the availability macros that macOS uses, it
assumed that it was able to use `clock_gettime()`, which caused a
reliance on that symbol within `libgfortran` itself.  This resulted in
our CSL being unusable on macOS 10.11 and earlier.  This PR updates the
GCC shards [0] and also adds compiler flags to enforce that users who
attempt to use `gcc` on macOS do not end up making the same mistake.

[0] JuliaPackaging/Yggdrasil#2836

Author: staticfloat

Artifacts.toml

@@ -1254,157 +1254,157 @@ os = "linux"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"
-git-tree-sha1 = "bea32c300b87f79585268bccfc27bc7559e2f58f"
+git-tree-sha1 = "26139b79927c0f2557c200bd01ce1adfaa816d46"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.squashfs".download]]
-    sha256 = "a52bc662da73dcdf422d1768e0c985320a65c8e7348d4de99f43d1791775573a"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v10.2.0+0/GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.squashfs.tar.gz"
+    sha256 = "51a81cb1a2dbea1aa3875b6cef521204580a2f372daecd7140b07c84a59c85a9"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v10.2.0+1/GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.squashfs.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.unpacked"]]
 arch = "x86_64"
-git-tree-sha1 = "c7130ed1e7ce7f2330842114bad067a476427cc3"
+git-tree-sha1 = "0108431575f65015dabb33516464ad34e4cf993b"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.unpacked".download]]
-    sha256 = "3b3ca560e23fe22271fea2bbd357d3c9cd83821d6688cc59217aacb1fb9d59c5"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v10.2.0+0/GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.unpacked.tar.gz"
+    sha256 = "6833d89663385af03d31f97cf26c34664ba7afbcf4c629ef7de891fddab09334"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v10.2.0+1/GCCBootstrap-x86_64-apple-darwin14.v10.2.0.x86_64-linux-musl.unpacked.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"
-git-tree-sha1 = "f7915abce1746466c4638ac778eb63c87c9b4e87"
+git-tree-sha1 = "665a96279cda5d5cf23f13ce3970353b5c1f2ec8"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.squashfs".download]]
-    sha256 = "2858f85eb64f289d93ebcacf992297623c85748b501bdbe8038b6fa1100728d7"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v4.8.5+6/GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.squashfs.tar.gz"
+    sha256 = "a5d7d63f98c789aca3c5d313d2039bcef00c83515a2988b899f828fe48344c8b"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v4.8.5+7/GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.squashfs.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.unpacked"]]
 arch = "x86_64"
-git-tree-sha1 = "678e51f4b65e4d344faaa59ce05286f4f61b18e7"
+git-tree-sha1 = "243126f2ab5d127398cd82a9ea290ed317990e4f"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.unpacked".download]]
-    sha256 = "1f59dc2e245d94d13048b4968c17f832d282fe95986291157407b58bee22b4a4"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v4.8.5+6/GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.unpacked.tar.gz"
+    sha256 = "022fa2e36eceff87ed5857c8a3ec7039bf38f55f394130702a901f96d525d285"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v4.8.5+7/GCCBootstrap-x86_64-apple-darwin14.v4.8.5.x86_64-linux-musl.unpacked.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"
-git-tree-sha1 = "8db4790c25c4b9ff23725e23d1265500a403dead"
+git-tree-sha1 = "c6093f4ae602881b065d22a7c94f58e4a2015936"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.squashfs".download]]
-    sha256 = "eaf53c090b336377804a126f4be7eed12df6fd11c080f106d2a78f0f4c119e0f"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v5.2.0+4/GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.squashfs.tar.gz"
+    sha256 = "b8eeaa34499ae14ac49075ac3e38b3bcf1067d06220a2e3d4fdd37486fb6f6cd"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v5.2.0+5/GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.squashfs.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.unpacked"]]
 arch = "x86_64"
-git-tree-sha1 = "522feb508d32f12cca1180cf6df09309b1fc910d"
+git-tree-sha1 = "1c42475fe174b81481b4d8d11239dbf85e469b42"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.unpacked".download]]
-    sha256 = "fb2eb159e85828758f4204c4f1653e3d67545d9bed19ca96370200fad3abd327"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v5.2.0+4/GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.unpacked.tar.gz"
+    sha256 = "5776b16befe684ce2f3a6721bf5a00e3a0bc546ea2acdf3464d8cfcaf8b5d56c"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v5.2.0+5/GCCBootstrap-x86_64-apple-darwin14.v5.2.0.x86_64-linux-musl.unpacked.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"
-git-tree-sha1 = "c595c01b3a935f5e94de54324ef78cc200c5dca4"
+git-tree-sha1 = "7dc77333ecfafac3f50dd1313625eef60f62d253"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.squashfs".download]]
-    sha256 = "f82528aa0e465a55a67947f401f89a54551ed97422eacf01a4e4e6d10326161e"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v6.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.squashfs.tar.gz"
+    sha256 = "9e3e7efb69c31cfff02c735e8f808373fcadf2961cd89bdba8d173e0c69af9f0"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v6.1.0+5/GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.squashfs.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.unpacked"]]
 arch = "x86_64"
-git-tree-sha1 = "9ffeb139defce72dc3311f48441a37393b455c36"
+git-tree-sha1 = "47a7f1888388d4a9fdb81c78159ef8574ef9360d"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.unpacked".download]]
-    sha256 = "02aacf1284f8f26ea94ca9dce610a5f1945df4dc2f091f52b6d5c9a087ae277c"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v6.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.unpacked.tar.gz"
+    sha256 = "c4d01f7bfaf7d9110e14fdc335968a0d50cd5c9511336403f31c9235a58860a4"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v6.1.0+5/GCCBootstrap-x86_64-apple-darwin14.v6.1.0.x86_64-linux-musl.unpacked.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"
-git-tree-sha1 = "edc1c72616c19f01403ba811a42ec78aa5a84485"
+git-tree-sha1 = "df7ae73168e03c18551caa67d3dc657f9c63ef42"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.squashfs".download]]
-    sha256 = "03d31b11924223be6346a0472b42b32c05a6289958d6d892e50c165c90548574"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v7.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.squashfs.tar.gz"
+    sha256 = "f9933766c45497682123bf9afb78c7a349897fb71e920531d3cbc7a74bbc81ad"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v7.1.0+5/GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.squashfs.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.unpacked"]]
 arch = "x86_64"
-git-tree-sha1 = "0ad4499ebb8c7c02db00dec492971836e2e0e5d2"
+git-tree-sha1 = "1231eeb9af98fb4524f46a598cd2393c335e7770"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.unpacked".download]]
-    sha256 = "70a5412c23d088838608ab8d7f39a6e4c5870123ec22507dd27b470287dd72f6"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v7.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.unpacked.tar.gz"
+    sha256 = "f534b25ea7ed546e09ea95a8f8ab666308351e9ab6445424fc29a31ab4891bfc"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v7.1.0+5/GCCBootstrap-x86_64-apple-darwin14.v7.1.0.x86_64-linux-musl.unpacked.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"
-git-tree-sha1 = "498361f8826b4dc7c65281af2dbf2fbd134193f3"
+git-tree-sha1 = "dcb3a04dad0a2c82079128c691343d0bfa6e63b3"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.squashfs".download]]
-    sha256 = "601647964228c9df17cb6012aae4ccdfe1f59d9dacbeac9219ab01f717729449"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v8.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.squashfs.tar.gz"
+    sha256 = "c108e6d7a4f763da2603d7c8143296b7dde3f6440b8d88f5fd07360c5195f0d4"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v8.1.0+5/GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.squashfs.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.unpacked"]]
 arch = "x86_64"
-git-tree-sha1 = "7f8518c7a9f40a9eb0d43a35e2fbbce88e05d785"
+git-tree-sha1 = "aaa4fdfa7ee9b0562153e095b1bf42e1d42f770d"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.unpacked".download]]
-    sha256 = "6e5a592f0e3acfd0f74d7fc55cfd3250cee9041d27ceaa6759b1fb373320d566"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v8.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.unpacked.tar.gz"
+    sha256 = "6fe75c3b1dd0ed409a57b9d9ddb40d2eaaa64ef0c7a005eef4717c19ac135093"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v8.1.0+5/GCCBootstrap-x86_64-apple-darwin14.v8.1.0.x86_64-linux-musl.unpacked.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"
-git-tree-sha1 = "53ffd834e425216ed1f23a9a6002d119318bb367"
+git-tree-sha1 = "dd9960b837f5c33863b6974c43789fb63c5b595f"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.squashfs".download]]
-    sha256 = "50dbce1074dc64b395e24546f1d82cddf184b1465938c142929473cb5d800ec6"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v9.1.0+3/GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.squashfs.tar.gz"
+    sha256 = "9735ccb4b0dc65a70f43f8072f1323bbf4881d3f01425804b715286ccdd63b19"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v9.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.squashfs.tar.gz"
 
 [["GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.unpacked"]]
 arch = "x86_64"
-git-tree-sha1 = "becb09d6c7810ed490746c7e4c5a6968cd897c09"
+git-tree-sha1 = "d30568b763191bfc499ad25c8985ee0f30893cc8"
 lazy = true
 libc = "musl"
 os = "linux"
 
     [["GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.unpacked".download]]
-    sha256 = "bebee6ef684d0b708d5a8efa2fded213d7f1e48f2d9e677ce2ac09de402fd0f5"
-    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v9.1.0+3/GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.unpacked.tar.gz"
+    sha256 = "052c0e1c06baf9f97b3892947b878f744c7173cbd614ddbd19b7146336b43859"
+    url = "https://github.com/JuliaPackaging/Yggdrasil/releases/download/GCCBootstrap-v9.1.0+4/GCCBootstrap-x86_64-apple-darwin14.v9.1.0.x86_64-linux-musl.unpacked.tar.gz"
 
 [["GCCBootstrap-x86_64-linux-gnu.v10.2.0.x86_64-linux-musl.squashfs"]]
 arch = "x86_64"

src/Runner.jl

@@ -236,15 +236,7 @@ function generate_compiler_wrappers!(platform::AbstractPlatform; bin_path::Abstr
         return flags
     end
 
-    function min_macos_version_flag(p::AbstractPlatform)
-        # If no `os_version` is specified in `p`, default to the oldest we support in the Julia world,
-        # which is `10.8`, but if it is actually specified, then set that corresponding value.
-        #min_macos_version = something(os_version(p), v"14.0.0")
-
-        # Eventually, we'll take this in `os_version(p)`, but not just yet.  We need to fix the paths
-        # to the compiler shards first, since right now they have `14` at the end
-        min_macos_version = v"14.0.0"
-
+    function macos_version(kernel_version::Integer)
         kernel_to_macos = Dict(
             12 => "10.8",
             13 => "10.9",
@@ -256,9 +248,26 @@ function generate_compiler_wrappers!(platform::AbstractPlatform; bin_path::Abstr
             19 => "10.15",
             20 => "11.0",
         )
+        return get(kernel_to_macos, kernel_version, nothing)
+    end
+    function macos_version(p::AbstractPlatform)
+        if os(p) != "macos"
+            return nothing
+        end
 
+        # If no `os_version` is specified in `p`, default to the oldest we support in the Julia world,
+        # which is `10.8`, but if it is actually specified, then set that corresponding value.
+        #version = something(os_version(p), v"14.0.0")
+
+        # Eventually, we'll take this in `os_version(p)`, but not just yet.  We need to fix the paths
+        # to the compiler shards first, since right now they have `14` at the end
+        version = v"14.0.0"
+        return macos_version(version.major)
+    end
+
+    function min_macos_version_flag(p::AbstractPlatform)
         # Ask compilers to compile for a minimum macOS version
-        return "-mmacosx-version-min=$(kernel_to_macos[min_macos_version.major])"
+        return "-mmacosx-version-min=$(macos_version(p))"
     end
 
     function clang_compile_flags!(p::AbstractPlatform, flags::Vector{String} = String[])
@@ -322,6 +331,13 @@ function generate_compiler_wrappers!(platform::AbstractPlatform; bin_path::Abstr
             push!(flags, "-D_GLIBCXX_USE_CXX11_ABI=0")
         end
 
+        # Simulate some of the `__OSX_AVAILABLE()` macro usage that is broken in GCC
+        # Currently, we only target 10.10, but eventually, we'll want to tailor this to `os_version(p)`
+        if 14 < 16
+            # Disable usage of `clock_gettime()`
+            push!(flags, "-D_DARWIN_FEATURE_CLOCK_GETTIME=0")
+        end
+
         # Use hash of arguments to provide consistent, unique random seed
         push!(flags, "-frandom-seed=0x\${ARGS_HASH}")