FEAT: add a check_gcc_variable_attribute function in config command.

2 files changed, 21 insertions, 0 deletions

diff --git a/numpy/distutils/command/autodist.py b/numpy/distutils/command/autodist.py
index ec00bcbdb..8598b33e6 100644
--- a/numpy/distutils/command/autodist.py
+++ b/numpy/distutils/command/autodist.py
@@ -59,6 +59,23 @@ main()
 """ % (attribute, name)
     return cmd.try_compile(body, None, None) != 0
 
+def check_gcc_variable_attribute(cmd, attribute):
+    """Return True if the given variable attribute is supported."""
+    cmd._check_compiler()
+    body = """
+#pragma GCC diagnostic error "-Wattributes"
+#pragma clang diagnostic error "-Wattributes"
+
+int %s foo;
+
+int
+main()
+{
+    return 0;
+}
+""" % (attribute, )
+    return cmd.try_compile(body, None, None) != 0
+
 def check_compile_without_warning(cmd, body):
     cmd._check_compiler()
     ret, output = cmd.try_output_compile(body, None, None)
diff --git a/numpy/distutils/command/config.py b/numpy/distutils/command/config.py
index 512471d7f..513d1b064 100644
--- a/numpy/distutils/command/config.py
+++ b/numpy/distutils/command/config.py
@@ -17,6 +17,7 @@ import distutils
 from numpy.distutils.exec_command import exec_command
 from numpy.distutils.mingw32ccompiler import generate_manifest
 from numpy.distutils.command.autodist import (check_gcc_function_attribute,
+                                              check_gcc_variable_attribute,
                                               check_inline,
                                               check_compiler_gcc4,
                                               check_compile_without_warning)
@@ -428,6 +429,9 @@ int main ()
     def check_gcc_function_attribute(self, attribute, name):
         return check_gcc_function_attribute(self, attribute, name)
 
+    def check_gcc_variable_attribute(self, attribute):
+        return check_gcc_variable_attribute(self, attribute)
+
     def check_compile_without_warning(self, code):
         """Returns True if the given code may be compiled without warning."""
         return check_compile_without_warning(self, code)