X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=CMakeLists.txt;h=023c3e14b71e9d51a766724c9f924e6fffc395b7;hb=bbbfa81ba3beb5eb709816424cf64abda791dcf7;hp=e72aad5e15adb89673b72f8c5b08b2c4f098027b;hpb=7033b157936370ec3de2d20f01d70e8512990b51;p=lyx.git

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e72aad5e15..023c3e14b7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -213,11 +213,11 @@ if(UNIX OR MINGW)
 		set(LYX_USE_TR1_REGEX 0)
 	endif()
 	if (LYX_ENABLE_CXX11)
-		if(GCC_VERSION VERSION_GREATER 4.7)
-			set(LYX_GCC11_MODE "-std=gnu++11")
-		elseif(GCC_VERSION VERSION_GREATER 4.2)
-			set(LYX_GCC11_MODE "-std=gnu++0x")
+		find_package(CXX11Compiler)
+		if(NOT CXX11COMPILER_FOUND)
+			message(FATAL_ERROR "A C++11 compatible compiler is required.")
 		endif()
+		set(LYX_GCC11_MODE "${CXX11_FLAG}")
 	endif()
 else()
 	if(MSVC10)
@@ -469,8 +469,12 @@ if(NOT MSVC)
 	endif()
 endif()
 
+set(LYX_CXX_FLAGS_EXTRA "" CACHE STRING "Desired semicolon separated list of extra cxx compile flags, like '-Werror'")
+mark_as_advanced(LYX_CXX_FLAGS_EXTRA)
 if(LYX_CXX_FLAGS_EXTRA)
-	add_definitions(${LYX_CXX_FLAGS_EXTRA})
+	foreach(_flag ${LYX_CXX_FLAGS_EXTRA})
+		add_definitions(${_flag})
+	endforeach()
 endif()
 
 find_package(Qt5Core QUIET)
@@ -702,16 +706,17 @@ endif()
 
 # Xcode compiler
 if (CMAKE_GENERATOR MATCHES Xcode)
-	# Automatically select the Xcode compiler if not set
-	if (NOT DEFINED CMAKE_XCODE_ATTRIBUTE_GCC_VERSION)
-		# XCode >= 3.1 has gcc 4.2 (up to actual Xcode)
-		if (XCODE_VERSION VERSION_GREATER "3.1")
-			SET(CMAKE_XCODE_ATTRIBUTE_GCC_VERSION "com.apple.compilers.llvmgcc42")
-		ENDIF(XCODE_VERSION VERSION_GREATER "3.1")
-	ENDIF(NOT DEFINED CMAKE_XCODE_ATTRIBUTE_GCC_VERSION)
-
-	# Print the selected compiler version
-    MESSAGE(STATUS "---- Using XCode compiler CMAKE_XCODE_ATTRIBUTE_GCC_VERSION=${CMAKE_XCODE_ATTRIBUTE_GCC_VERSION}")
+	if (XCODE_VERSION VERSION_LESS "5.0")
+		# Automatically select the Xcode compiler if not set
+		if (NOT DEFINED CMAKE_XCODE_ATTRIBUTE_GCC_VERSION)
+			# XCode >= 3.1 has gcc 4.2 (up to actual Xcode)
+			if (XCODE_VERSION VERSION_GREATER "3.1")
+				SET(CMAKE_XCODE_ATTRIBUTE_GCC_VERSION "com.apple.compilers.llvmgcc42")
+			ENDIF(XCODE_VERSION VERSION_GREATER "3.1")
+		ENDIF(NOT DEFINED CMAKE_XCODE_ATTRIBUTE_GCC_VERSION)
+		# Print the selected compiler version
+   	MESSAGE(STATUS "---- Using XCode compiler CMAKE_XCODE_ATTRIBUTE_GCC_VERSION=${CMAKE_XCODE_ATTRIBUTE_GCC_VERSION}")
+	ENDIF(XCODE_VERSION VERSION_LESS "5.0")
 ENDIF(CMAKE_GENERATOR MATCHES Xcode)
 
 if (WIN32 AND Qt5Core_FOUND)