LKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 00/22] add support for Clang LTO @ 2020-06-24 20:31 Sami Tolvanen 2020-06-24 20:31 ` [PATCH 01/22] objtool: use sh_info to find the base for .rela sections Sami Tolvanen ` (25 more replies) 0 siblings, 26 replies; 212+ messages in thread From: Sami Tolvanen @ 2020-06-24 20:31 UTC (permalink / raw. export CFLAGS="-Wno-error=format-security ${CFLAGS}" It appears that the presence of -Werrorhas a higher priority than -Wno-error, which makes sense. I guess, the only way that is left would be to try to use string substitution. I’m not sure if that’s a good solution, but I guess I’ll give it a try on Wednesday. CFLAGS and CXXFLAGS set in this file are ignored too. If you would like to refer to this comment somewhere else in this project, copy and paste the following link: David Macek - 2015-04-20. The most probable explanation is that the makefile is somehow detecting MSYS2 and overwriting CFLAGS and CXXFLAGS with the values you see. This is a Makefile suitable for STM32 projects that uses build rules and GCC's autodependency feature. By passing in command line arguments, this makefile will build a Release or Debug binary. See the section at the bottom of the listing, titled Defaults, for other options. NOTE This makefile is specialized for the STM32F437xx variant. export CFLAGS=-ggdb export CXXFLAGS=-ggdb. 来自:网络 更新日期:早些时候. export PATH 然后,重新启动shell即可。 需要注意的是,PATH变量的分隔符是:号,其他的是空格, 所以LDFLAGS应该是这样: LDFLAGS="$LDFLAGS -L/path/to/lib -L/path/to/lib" CFLAGS应该是这样: CFLAGS="$CFLAGS -I/path/to/iclude -I/path/to/include" FFLAGS选项可参考man 编译器 ,来确定参数 EXTRA_CFLAGS, EXTRA_AFLAGS, EXTRA_LDFLAGS, EXTRA_ARFLAGS 所有EXTRA_变量只用在它的定义所在的那个kbuild makefile,它们被用于kbuild makefile中所有命令的执行. 如 果在执行./configure以前设置环境变量export LDFLAGS="-L/var/xxx/lib -L/opt/mysql/lib -Wl,R/var/xxx/lib -Wl,R/opt/mysql/lib" ,注意设置环境变量等号两边不可以有空格,而且要加上引号哦(shell的用法)。 那么执行configure以后,Makefile将会设置这个选项, 链接时会有这个参数,编译出来的可执行程序的库文件搜索路径就得到扩展了。 ------------------------------------------------------------------------------------------------------------------------. Unable to export lib and, save graph and params to a file. I want to use C++ API to generate executable and for that I need .so, .json and .params files. I were unable to generate these files after compilation. Below are the codes from my python script and makefile. Please make a comment on the issue. Currently we have following in our build scripts (that we use for releases): export CFLAGS ="-fPIC -Wall -O3 -g -static-libgcc -fno-omit-frame-pointer -DPERCONA. This process also produces "mpiexec" for running MPI programs. We suggest using the "online installer" download, which is a small download. The "online" installer can be copied over SSH to your HPC user account for. To build locally, use LOCAL_CFLAGS instead. LOCAL_EXPORT_CPPFLAGS. This variable is the same as LOCAL_EXPORT_CFLAGS, but for C++ flags only. LOCAL_EXPORT_C_INCLUDES. This variable is the same as LOCAL_EXPORT_CFLAGS, but for C include paths. It is useful in cases where, for example, bar.c needs to include headers from module foo. LOCAL_EXPORT. . to Fong Chun Chan, r-h...@r-project.org. Probably not much help to you, but for what it's worth: * on my system cairo.h is in /usr/include/cairo. Perhaps the CAIRO flags that you set are not adequately guiding the search. * you need to have the *development* version of cairo installed; on my. Set CFLAGS and CXXFLAGS options using CMake. You need to set the flags after the project command in your CMakeLists.txt. Also, if you're calling include ($ {QT_USE_FILE}) or add_definitions ($ {QT_DEFINITIONS}), you should include these set commands after the Qt ones since these would append further flags. If that is the case, you maybe just. to Fong Chun Chan, r-h...@r-project.org. Probably not much help to you, but for what it's worth: * on my system cairo.h is in /usr/include/cairo. Perhaps the CAIRO flags that you set are not adequately guiding the search. * you need to have the *development* version of cairo installed; on my. To pass build flags to a build command in a makefile: $(MAKE) $(shell dpkg-buildflags --export=cmdline) ./configure $(shell dpkg-buildflags --export=cmdline) To set build flags in a shell script or shell fragment, eval can be used to interpret the output and to export the flags in the environment: eval "$(dpkg-buildflags --export=sh)" && make. #externals - Opening PHP's #internals to the outside. CXXFLAGS 表示用于 C++ 编译器的选项。 这两个变量实际上涵盖了编译和汇编两个步骤。 CFLAGS: 指定头文件(.h文件)的路径,如:CFLAGS=-I/usr/include -I/path/include。 同样地,安装一个包时会在安装路径下建立一个include目录,当安装过程中出现问题时,试着把以前安装的包的include目录加入到该变量中来。 LDFLAGS:gcc 等编译器会用到的一些优化参数,也可以在里面指定库文件的位置。 用法:LDFLAGS=-L/usr/lib -L/path/to/your/lib。 每安装一个包都几乎一定的会在安装目录里建立一个lib目录。. percy jackson imprisoned in tartarus fanfiction; spicy spins bonus code; 275 40 r18 tyre pressure; lane recliner mechanism parts suppliers near mie. @user66229 if you did a default install then yes, gcc-4.2.1 (unless you're on really old machines like vaxen) is in comp55.tgz.There are packages for gcc-4.8 and 4.9, and also llvm/clang 3.0.The former aren't included mainly for licensing reasons (GPLv2 vs GPLv3), the latter isn't used because it doesn't support all the platforms that OpenBSD currently supports. CFLAGS and CXXFLAGS set in this file are ignored too. If you would like to refer to this comment somewhere else in this project, copy and paste the following link: David Macek - 2015-04-20. ... The order of the commands is. export CFLAGS = -std=c++11 -Wall -O2 -Iinclude -fPIC As we're doing recursive make s, this might be dangerous as it'll. CFLAGS From Wikipedia, the free encyclopedia CFLAGS and CXXFLAGS are either the name of environment variables or of Makefile variables that can be set to specify additional switches to be passed to a compiler in the process of building computer software. FFLAGS fulfills a. CFLAGS From Wikipedia, the free encyclopedia CFLAGS and CXXFLAGS are either the name of environment variables or of Makefile variables that can be set to specify additional switches to be passed to a compiler in the process of building computer software. FFLAGS fulfills a. This is what I plan to do: Untar the source tarball to a freshly created directory Issue the command ./configure CFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib" Issue the command make Issue the command make install Which of the following syntax is correct? ./configure CFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib" or. export CFLAGS="-DSYSV -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 -D_AIX51 -D_AIX52 -D_AIX53 -D_AIX61 -D_AIX71 \ -D_ALL_SOURCE -DFUNCPROTO=15 -O -I/opt/freeware/include" Source code and SPEC files Remarks. I always provide the source code as well as all patches and the SPEC file. The only exception is GCC where the source code is linked directly to the. 大多数软件包遵守如下约定俗成的规范: #1,首先从源代码生成目标文件 (预处理,编译,汇编),"-c"选项表示不执行链接步骤。 $ (CC) $ (CPPFLAGS) $ (CFLAGS) example.c -c -o example.o #2,然后将目标文件连接为最终的结果 (连接),"-o"选项用于指定输出文件的名字。 $ (CC) $ (LDFLAGS) example.o -o example #有一些软件包一次完成四个步骤: $ (CC) $ (CPPFLAGS) $ (CFLAGS) $ (LDFLAGS) example.c -o example 当然也有少数软件包不遵守这些约定俗成的规范,比如:. ZWI Export; CFLAGS and CXXFLAGS are either the name of environment variables or of Makefile variables that can be set to specify additional switches to be passed to a compiler in the process of building computer software. ... CFLAGS enables the addition of switches for the C compiler, while CXXFLAGS is meant to be used when invoking a C++ compiler. 1 Overview of make . The make utility automatically determines which pieces of a large program need to be recompiled, and issues commands to recompile them. This manual describes GNU make , which was implemented by Richard Stallman and Roland McGrath.Development since Version 3.76 has been handled by Paul D. Smith. CFLAGS and CXXFLAGS set in this file are ignored too. If you would like to refer to this comment somewhere else in this project, copy and paste the following link: David Macek - 2015-04-20. The most probable explanation is that the makefile is somehow detecting MSYS2 and overwriting CFLAGS and CXXFLAGS with the values you see. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.. Visit Stack Exchange. This is a Makefile suitable for STM32 projects that uses build rules and GCC's autodependency feature. By passing in command line arguments, this makefile will build a Release or Debug binary. See the section at the bottom of the listing, titled Defaults, for other options. NOTE This makefile is specialized for the STM32F437xx variant. export CFLAGS=-ggdb export CXXFLAGS=-ggdb. CFLAGS From Wikipedia, the free encyclopedia CFLAGS and CXXFLAGS are either the name of environment variables or of Makefile variables that can be set to specify additional switches to be passed to a compiler in the process of building computer software. FFLAGS fulfills a. This is what I plan to do: Untar the source tarball to a freshly created directory Issue the command ./configure CFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib" Issue the command make Issue the command make install Which of the following syntax is correct? ./configure CFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib" or. CFLAGS and CXXFLAGS set in this file are ignored too. If you would like to refer to this comment somewhere else in this project, copy and paste the following link: David Macek - 2015-04-20. ... The order of the commands is. export CFLAGS = -std=c++11 -Wall -O2 -Iinclude -fPIC As we're doing recursive make s, this might be dangerous as it'll. Set CFLAGS and CXXFLAGS options using CMake. You need to set the flags after the project command in your CMakeLists.txt. Also, if you're calling include ($ {QT_USE_FILE}) or add_definitions ($ {QT_DEFINITIONS}), you should include these set commands after the Qt ones since these would append further flags. If that is the case, you maybe just. CFLAGS stands for compiler flags; LDFLAGS for linker flags (the linker is ld). ... LDFLAGS="-static" --disable-shared $ make LDFLAGS="-static" LINKFORSHARED=" "LINKFORSHARED=" "prevents passing -export-dynamic to the linker, which will cause the binary to be built as a dynamically linked executable. You may need additional flags to build. $ export CC=clang $ export CFLAGS=-O3 $ make -e all Some make implementations have other special kinds of macro assignment operators beyond simple assignment (=). These are unnecessary, so don’t worry about them. Inference rules so. To pass build flags to a build command in a makefile: $(MAKE) $(shell dpkg-buildflags --export=cmdline) ./configure $(shell dpkg-buildflags --export=cmdline) To set build flags in a shell script or shell fragment, eval can be used to interpret the output and to export the flags in the environment: eval "$(dpkg-buildflags --export=sh)" && make. LOCAL_EXPORT_C_INCLUDES和LOCALC_INCLUDES 的差别。同理LOCAL_EXPORT_CFLAGS与LOCAL_CFLAGS 也一样 编译某模块是,如果它依赖别的模块,那么别的模块的LOCAL_EXPORT*类的值,会自动加入到本模块。(但是反过来不会有作用). ifneq ($(sub_make_done),1) # Do not use make's built-in rules and variables # (this increases performance and avoids hard-to-debug behaviour) MAKEFLAGS += -rR # Avoid funny character set dependencies unexport LC_ALL LC_COLLATE=C LC_NUMERIC=C export LC_COLLATE LC_NUMERIC # Avoid interference with shell env settings unexport. The LDFLAGS and CPPFLAGS variables contains command line flags that are passed to tools at various stages when compiling software. These should contain space-delimited flags. export LDFLAGS=-L/some/directory Later (note, you only have to export a variable once): LDFLAGS="$LDFLAGS -L/other/directory" Or, LDFLAGS+=" -L/other/directory". . export CFLAGS GCC help. Hi all i hope this is the correct place to post this question! I am trying to put the following optimisations into a script that i can call if i want to compile apache (or anything) for a web server. I can do an "export" on the command line and see these variables using env but if i put them in an (chmod 755) file then. CFLAGS and CXXFLAGS are either the name of environment variables or of Makefile variables that can be set to specify additional switches to be passed to a compiler in the process of building computer software. FFLAGS fulfills a similar role.. 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