From: Daniel Arndt <daniel.arndt@iwr.uni-heidelberg.de>
Date: Mon, 17 Sep 2018 18:46:36 +0000 (+0200)
Subject: Disable '-Og' for gcc
X-Git-Tag: v9.1.0-rc1~706^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F7207%2Fhead;p=dealii.git

Disable '-Og' for gcc
---

diff --git a/cmake/setup_compiler_flags_gnu.cmake b/cmake/setup_compiler_flags_gnu.cmake
index ae5496f683..b971b51edd 100644
--- a/cmake/setup_compiler_flags_gnu.cmake
+++ b/cmake/setup_compiler_flags_gnu.cmake
@@ -182,7 +182,13 @@ IF (CMAKE_BUILD_TYPE MATCHES "Debug")
   LIST(APPEND DEAL_II_DEFINITIONS_DEBUG "DEBUG")
   LIST(APPEND DEAL_II_USER_DEFINITIONS_DEBUG "DEBUG")
 
-  ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS_DEBUG "-Og")
+  #
+  # In recent versions, gcc often eliminates too much debug information
+  # using '-Og' to be useful.
+  #
+  IF(NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+    ENABLE_IF_SUPPORTED(DEAL_II_CXX_FLAGS_DEBUG "-Og")
+  ENDIF()
   #
   # If -Og is not available, fall back to -O0:
   #