From: Iain Sandoe <iain@sandoe.co.uk>
Date: Sun, 22 Sep 2024 13:30:30 +0000 (+0100)
Subject: libgcc, Darwin: From macOS 11, make that the earliest supported.
X-Git-Tag: basepoints/gcc-16~5776
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43eab54939d37d4e634a692910d31adafc053e38;p=thirdparty%2Fgcc.git

libgcc, Darwin: From macOS 11, make that the earliest supported.

For libgcc, we have (so far) supported building a DSO that supports
earlier versions of the OS than the target.  From macOS 11, there are
APIs that do not exist on earlier OS versions, so limit the libgcc
range to macOS11..current.

libgcc/ChangeLog:

	* config.host: From macOS 11, limit earliest macOS support
	to macOS 11.
	* config/t-darwin-min-11: New file.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
---

diff --git a/libgcc/config.host b/libgcc/config.host
index 9fae51d4ce7..4fb4205478a 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -236,7 +236,10 @@ case ${host} in
   esac
   tmake_file="$tmake_file t-slibgcc-darwin"
   case ${host} in
-    *-*-darwin1[89]* | *-*-darwin2* )
+    *-*-darwin2*)
+      tmake_file="t-darwin-min-11 $tmake_file"
+      ;;
+    *-*-darwin1[89]*)
       tmake_file="t-darwin-min-8 $tmake_file"
       ;;
     *-*-darwin9* | *-*-darwin1[0-7]*)
diff --git a/libgcc/config/t-darwin-min-11 b/libgcc/config/t-darwin-min-11
new file mode 100644
index 00000000000..4009d41addb
--- /dev/null
+++ b/libgcc/config/t-darwin-min-11
@@ -0,0 +1,3 @@
+# Support building with -mmacosx-version-min back to macOS 11.
+DARWIN_MIN_LIB_VERSION = -mmacosx-version-min=11
+DARWIN_MIN_CRT_VERSION = -mmacosx-version-min=11