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Makes the port build with clang when the ALSA option is on.
commit d69277128afb60999e420c533e826b0061fc40eb
Author: Raphael Kubo da Costa <rakuco@FreeBSD.org>
Date: Sat Nov 28 14:27:45 2015 +0100
Extend -std=c99 compiler flag to clang.
The ALSA headers use features such as the `inline' keyword that require
C99 support. Commit e36c628 ("Fix compilation: ALSA no longer compiles
with -std=c90") started passing it to the compiler when GCC is used.
We now do the same for clang with a better comment, and also append the
flag to the existing CMAKE_C_FLAGS, otherwise we lose several other
options which are set by FindKDE4Internal.cmake.
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -7,9 +7,12 @@ include(MacroLibrary)
add_definitions(${QT_DEFINITIONS} ${KDE4_DEFINITIONS})
## Compiler flags
-if(CMAKE_COMPILER_IS_GNUCXX)
- set(CMAKE_C_FLAGS "-std=c99") ## ALSA no longer compiles with -std=c90, see https://bugzilla.novell.com/show_bug.cgi?id=817077
+if (CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+ # ALSA does not build with the default -std=iso9899:1990 from FindKDE4Internal.cmake.
+ # See https://bugzilla.novell.com/show_bug.cgi?id=817077 for more information.
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
endif()
+
find_package(Alsa)
alsa_configure_file(${CMAKE_CURRENT_BINARY_DIR}/config-alsa.h)
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