From b7c9f94c004f1608c8cba2f1822c451f0828328e Mon Sep 17 00:00:00 2001
From: Hunter Allen <hunter@openrobotics.org>
Date: Sun, 7 Jan 2018 22:02:46 -0600
Subject: [PATCH] Add opencv3 check (#114)

* Turn off cuda for opencv3 if GCC > 4. This also simplifies the logic for special cases.
---
 superflore/generators/ebuild/ebuild.py | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/superflore/generators/ebuild/ebuild.py b/superflore/generators/ebuild/ebuild.py
index cdcb6416..07ed5090 100644
--- a/superflore/generators/ebuild/ebuild.py
+++ b/superflore/generators/ebuild/ebuild.py
@@ -184,14 +184,22 @@ def get_ebuild_text(self, distributor, license_text):
             ret += "    ros-cmake_src_prepare\n"
             ret += "}\n"
 
-        special_pkgs = ['opencv3', 'stage']
         # source configuration
-        if self.name in special_pkgs:
+        if self.name == 'opencv3':
             ret += "\nsrc_configure() {\n"
-            if self.name == 'opencv3':
-                ret += "    filter-flags '-march=*' '-mcpu=*' '-mtune=*'\n"
-            elif self.name == 'stage':
-                ret += "    filter-flags '-std=*'\n"
+            ret += "    filter-flags '-march=*' '-mcpu=*' '-mtune=*'\n"
+            ret += "    if [[ $(gcc-major-version) -gt 4 ]]; then\n"
+            ret += "        local mycmakeargs=(\n"
+            ret += "            -DWITH_CUDA=OFF\n"
+            ret += "        )\n"
+            ret += '        ewarn "Cuda does not support GCC > 4, so cuda'
+            ret += ' has been disabled."\n'
+            ret += "    fi\n"
+            ret += "    ros-cmake_src_configure\n"
+            ret += "}\n"
+        elif self.name == 'stage':
+            ret += "\nsrc_configure() {\n"
+            ret += "    filter-flags '-std=*'\n"
             ret += "    ros-cmake_src_configure\n"
             ret += "}\n"