Some shells don't support the '+=' concatenation operator.

diff --git a/src/modules/rlm_ruby/configure b/src/modules/rlm_ruby/configure
index 1789c76..15868ab 100755 (executable)
--- a/src/modules/rlm_ruby/configure
+++ b/src/modules/rlm_ruby/configure
@@ -3436,7 +3436,7 @@ $as_echo_n "checking for Ruby include path... " >&6; }
            fi
        fi
 
-       RUBY_CFLAGS+="$ruby_path"
+       RUBY_CFLAGS="$RUBY_CFLAGS $ruby_path"
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ruby_path" >&5
 $as_echo "$ruby_path" >&6; }
     fi

diff --git a/src/modules/rlm_ruby/m4/ax_ruby_devel.m4 b/src/modules/rlm_ruby/m4/ax_ruby_devel.m4
index bdc345b..d39e1d3 100644 (file)
--- a/src/modules/rlm_ruby/m4/ax_ruby_devel.m4
+++ b/src/modules/rlm_ruby/m4/ax_ruby_devel.m4
@@ -106,7 +106,7 @@ $ac_distutils_result])
            fi
        fi
        
-       RUBY_CFLAGS+="$ruby_path"
+       RUBY_CFLAGS="$RUBY_CFLAGS $ruby_path"
        AC_MSG_RESULT([$ruby_path])
     fi