ext: explicitly allow C90 and C99 features

Related to #2302 and #2303.
sparklemotion · Aug 6, 2021 · 0566abe · 0566abe
1 parent fd1e4e3
commit 0566abe
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/ext/nokogiri/extconf.rb b/ext/nokogiri/extconf.rb
@@ -594,6 +594,10 @@ def do_clean
 append_ldflags(ENV["LDFLAGS"].split) unless ENV["LDFLAGS"].nil?
 $LIBS = concat_flags($LIBS, ENV["LIBS"])
 
+# nokogumbo code uses C90/C99 features, let's make sure older compilers won't give
+# errors/warnings. see #2302
+append_cflags(["-std=c99", "-Wno-declaration-after-statement"])
+
 # always include debugging information
 append_cflags("-g")