对于编译 C、C++ 程序来说,借助 -std 选项即可手动控制 GCC 编译程序时所使用的编译标准。
make 'CFLAGS=-Wall -g -O2 -w'; 'CXXFLAGS=-g -O2 -w' 或 运行 ./configure 并静态修改 Makefile 但是我想在运行时将我的选项与现有选项一起附加 configure 或 make 帖子在autotools 项目中添加 CFLAG(例如 -std=gnu99)的位置 方便地使用宏来实现这一点。make...
configure:4433: clang -qlanglvl=extc89 -c -Wall -Werror conftest.c >&5 clang: error: unknown argument: '-qlanglvl=extc89' and clang does doesn't support -qlanglvl. in 'configure', we can see the related code is: """ for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_...
-fmacro-prefix-map=F:/ESP/esp-idf=IDF -fstrict-volatile-bitfields -Wno-error=unused-but-set-variable -fno-jump-tables -fno-tree-switch-conversion -std=gnu99 -Wno-old-style-declaration -D_GNU_SOURCE -DIDF_VER=\"v4.4-dev-2825-gb63ec47238-dirty\" -DESP_PLATFORM -MD -MT esp-idf/...
如何在GNU生成文件中对环境变量进行建模 、、 [root@centos-linux-10 make]# cat Makefile exportCFLAGS="-O2 -Wall -std=gnu99 -fno-strict-aliasing)exportCFLAGS="-O2 -Wall -std=gnu99 -fno-strict-aliasing[root@centos-linux-10 浏览1提问于2018-12-12得票数 0 ...
+++ b/CMakeLists.txt @@ -7,11 +7,12 @@ IF(NOT ${CMAKE_VERSION} LESS 3.0) check_c_compiler_flag(-Wimplicit-fallthrough HAS_IMPLICIT_FALLTHROUGH) ENDIF() -ADD_DEFINITIONS(-Os -Wall -Werror --std=gnu99 -Wmissing-declarations ...
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第二行输出: a.c b.c sa.c sb.c notdir把展开的文件去除掉路径信息 第三行...