From 77b78e01f83b65f3c38941f54f71beaaddcb6fc1 Mon Sep 17 00:00:00 2001 From: Pierre-Jean Texier Date: Sat, 23 Nov 2019 16:51:46 +0100 Subject: [PATCH] CMakeLists: fix build with old compilers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The librsync code uses some C99 constructs, but old compilers such as gcc 4.7 don't default to -std=c99. This commit makes sure librsync is built with -std=gnu99. Fixes: src/rabinkarp.h:82:5: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode for (size_t i = len; i; i--) { ^ src/rabinkarp.h:82:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code Signed-off-by: Pierre-Jean Texier [Upstream status: https://github.com/librsync/librsync/pull/181] Signed-off-by: Fabrice Fontaine --- CMakeLists.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index f810061..794d9c0 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -149,7 +149,7 @@ if (CMAKE_C_COMPILER_ID MATCHES "(Clang|Gnu|GNU)") # TODO: Set for MSVC and other compilers. # TODO: Set -Werror when the build is clean. - set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -std=gnu99") endif() site_name(BUILD_HOSTNAME)