Description: Add option to link libatomic
 Some platforms may need to link libatomic to get a successful build. This is
 the case for armel in Debian. Here, we add an option to enable linking
 libatomic.
Author: Athos Ribeiro <athoscribeiro@gmail.com>
Forwarded: no
Last-Update: 2024-05-03
---
This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
--- a/ext/re2/extconf.rb
+++ b/ext/re2/extconf.rb
@@ -133,6 +133,9 @@ module RE2
     def build_extension
       $CFLAGS << " -Wall -Wextra -funroll-loops"
       $CXXFLAGS << " -Wall -Wextra -funroll-loops"
+      if ENV["X_DEB_LINK_ATOMIC"]
+        $LDFLAGS << " -latomic"
+      end
 
       # Pass -x c++ to force gcc to compile the test program
       # as C++ (as it will end in .c by default).