commit 864a28b6a6ae4f1a56e230be26bc6d13e3f8b3d9
author Bram Moolenaar <Bram@vim.org> Mon Dec 28 21:36:56 2020 +0100
committer Bram Moolenaar <Bram@vim.org> Mon Dec 28 21:36:56 2020 +0100
tree c1002abbe3cdce8579ff2a192ef46a0ee43ddbc3
parent 41a834d1e3dbf9c8759737bcd6524159a9b93d2a

patch 8.2.2241: Build with Ruby and clang may fail

Problem:    Build with Ruby and clang may fail.
Solution:   Adjust congigure and sed script. (Ozaki Kiichi, closes #7566)

src/configure.ac

diff --git a/src/configure.ac b/src/configure.ac
index c024f65..d13e378 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -2001,6 +2001,9 @@
 	  RUBY_CFLAGS="-DDYNAMIC_RUBY_DLL=\\\"$libruby_soname\\\" $RUBY_CFLAGS"
 	  RUBY_LIBS=
 	fi
+	if test "X$CLANG_VERSION" != "X" -a "$rubyversion" -ge 30; then
+	  RUBY_CFLAGS="$RUBY_CFLAGS -fdeclspec"
+	fi
       else
 	AC_MSG_RESULT(not found; disabling Ruby)
       fi