From f5cc0a2f57885d4c653a82fbba36f841014d8002 Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Wed, 18 Sep 2019 11:04:51 -0600
Subject: [PATCH] gcc compiler flags fixed

---
 conanfile.py       |  2 ++
 src/CMakeLists.txt | 12 +++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/conanfile.py b/conanfile.py
index 8bc19106..8a9d7275 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -82,6 +82,8 @@ class UnitsConan(ConanFile):
 
     def package_info(self):
         self.cpp_info.includedirs = ['include']
+        if self.settings.compiler == "gcc":
+            self.cpp_info.cxxflags = ["-fconcepts -Wno-literal-suffix"]
 
     def package_id(self):
         self.info.settings.clear()
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f6bd63ce..4a1b2f56 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -60,11 +60,13 @@ target_include_directories(units
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
         $<INSTALL_INTERFACE:include>
 )
-target_compile_options(units
-    INTERFACE
-        -Wno-literal-suffix
-        -fconcepts
-)
+if(CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX)
+    target_compile_options(units
+        INTERFACE
+            -Wno-literal-suffix
+            -fconcepts
+    )
+endif()
 add_library(mp::units ALIAS units)
 
 # installation info