疑難雜症萬事通 - 關於 makefile if ，我們在網路上蒐集到這些相關的討論、資訊與評價

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#1. makefile if 使用- IT閱讀

makefile if 使用 ... 這個ifeq else endif，在target 外部，關鍵字前邊一定要有tab ifeq ("aaa" ... #make預處理時，所有以$開頭的，它都不會放過。

#2. 使用条件判断— 跟我一起写Makefile 1.0 文档

我们可以从上面的示例中看到三个关键字： ifeq 、 else 和 endif 。 ifeq 的意思表示条件语句的开始，并指定一个条件表达式，表达式包含两个参数，以逗号分隔，表达式 ...

#3. Makefile if 函数 - 宅学部落

Makefile if 函数. Makefile 中的if 函数提供了在一个函数上下文中实现条件判断的功能，类似于ifeq关键字，if函数的使用格式如下：. $(if CONDITION,THEN-PART) ...

#4. makefile if 使用_liuzhuchen的专栏 - CSDN博客

1、在目标外使用if#这个ifeq else endif，在target 外部，关键字前边一定要有tab ifeq ("aaa","bbb")#内容前可以有空格，如果是tab时，解析为命令# ...

#5. Makefile用法(define和if條件句) - 雜記

Makefile 用法(define和if條件句). 六、多行變量還有一種設置變量值的方法是使用define關鍵字。使用define關鍵字設置變量的值可以有換行，這有利於 ...

#6. Conditional Syntax (GNU make)

The text-if-true may be any lines of text, to be considered as part of the makefile if the condition is true. If the condition is false, no text is used instead ...

#7. If conditions in a Makefile, inside a target - Stack Overflow

You can simply use shell commands. If you want to suppress echoing the output, use the "@" sign. For example: clean: @if [ "test" = "test" ]; ...

#8. 跟我一起寫Makefile（二）section 3 @ 程式專欄 - 隨意窩

九、模式變量在GNU的make中，還支持模式變量（Pattern-specific Variable）， ... 我們可以從上面的示例中看到三個關鍵字：ifeq、else和endif。ifeq的意思表示條件語句 ...

#9. Makefile If-Then Else和循環 - 开发者知识库

Can someone explain how to use if-then statements and for loops in Makefiles? I can't seem to find a.

#10. 【Scripts系列】之Makefile中条件分支ifeq/else/endif ... - 博客园

DATE: 2019-2-22前言条件分支的用法在任何编程语言和脚本以及逻辑中都广泛使用。前文讲述过C语言中预处理的条件编译#ifdef/#if/#elif/#else/#endif ...

#11. GNU Make - Conditional Parts of Makefiles - MIT

The ifeq directive begins the conditional, and specifies the condition. It contains two arguments, separated by a comma and surrounded by parentheses. Variable ...

#12. Makefile - Directives - Tutorialspoint

Syntax of Conditionals Directives ... The text-if-true may be any lines of text, to be considered as part of the makefile if the condition is true. If the ...

#13. 11. Example Makefiles - Managing Projects with GNU Make ...

The nested ifdef / ifeq pair ensures that the KBUILD_VERBOSE variable is set only if V is set on the command line. Setting V in the environment or makefile has ...

#14. Makefile 指令 - 極客書

有好幾種指令以不同的形式。讓程序可能不支持所有指令。因此，請檢查make是否支持指令，我們這裡解釋。 GNU make支持這些指令條件指令條件的指令ifeq指令開始的條件， ...

#15. [Linux] 在Makefile 裡的if 敘述裡執行多行指令 - EPH 的程式日記

今天意外的發現專案的Makefile 裡有個問題，. 原本預期下面的cppcheck 在檢查到錯誤時，make 會停下來，但是卻沒有：. run_cppcheck: @if which ...

#16. Makefile 前置處理

Makefile 前置處理. 2021/08/13. c · o. 本文內容. 您還想知道關於哪些方面的詳細資訊？另請參閱. 您可以使用前置處理指示詞和運算式來控制NMAKE 會話。前置處理指示 ...

#17. Makefile 指令 - 億聚網

有好幾種指令以不同的形式。讓程序可能不支持所有指令。因此，請檢查make是否支持指令，我們這裏解釋。 GNU make支持這些指令條件指令條件的指令ifeq指令開始的條件， ...

#18. Makefile詳解(四)-使用條件判斷及函數 - 台部落

當然，參數中我們還可以使用make的函數。如： ifeq ($(strip $(foo)),) <text-if-empty> endif 這個示例中使用了“strip”函數，如果這個函數的返回值 ...

#19. [GNU Make] Makefile 教學：為函式庫專案撰寫跨平台的 ...

但在Windows 上，這項設置會失效，所以我們清除原本的設置，根據系統預設C 編譯器重新設置。設置C 標準：. # Clean C_STD variable. C_STD= ifndef C_STD ifeq ($( ...

#20. Linux Kernel Makefiles

If CONFIG_FOO is neither y nor m, then the file will not be compiled nor linked. 3.2 Built-in object goals - obj-y¶. The kbuild Makefile specifies object files ...

#21. Makefile ifeq、ifneq、ifdef和ifndef（条件判断） - C语言中文网

注意：条件语句只能用于控制make 实际执行的Makefile 文件部分，不能控制规则的shell 命令执行的过程。下面是条件判断中使用到的一些关键字：. 关键字, 功能. ifeq, 判断 ...

#22. Makefile 語法簡介

若執行完某條 Command 但傳回了錯誤值，make 就會中斷執行。因為每條 Command 會啟動一個新的 Shell，所以有時執行的指令必須寫在同一行，像是使用 if 來進行條件 ...

#23. If conditions in a Makefile, inside a target | Newbedev

If conditions in a Makefile, inside a target. You can simply use shell commands. If you want to suppress echoing the output, use the "@" sign. For example:

#24. Makefile 的寫法與用途 - Puritys Blog

Makefile 在Linux 環境下，通常是用來撰寫編譯c 語言的指令， ... compress: if [ -f "all.js" ]; then rm all.js ; fi; touch all.js ...

#25. makefile--if条件判断语句语法与使用 - 简书

条件判断语句1. makefile中支持条件判断语句可以根据条件的值来决定make的执行可以比较两个不同变量或者变量和常量值注意事项：条件判断语句只能用于 ...

#26. 在makefile 判斷目錄是否存在 - 邱小新の工作筆記

可以利用wildcard 函數來判斷目錄是否存在。 OUTPUT_PATH := test all: ifeq "$(wildcard $(OUTPUT_PATH))" "" mkdir $(OUTPUT_PATH) echo "directory not ...

#27. Makefile - Google Git

# Enable required options for memory stack tagging. # Currently, these options are enabled only for clang and armclang compiler. ifeq ( ...

#28. makefile 的ifdef, ifeq 使用及辨析- 云+社区 - 腾讯云

... test.o 注释： makefile 采用了ifeq-else-endif 结构可以判别莫个make变量是否定义。 make变量可以在makefile中定义，也可以由make命令行传递。

#29. Makefile If-Then Else和循环 - 码农家园

Makefile If -Then Else and Loops有人可以解释如何在Makefile中使用if-then语句和for循环吗？我似乎找不到带有示例的良好文档。

#30. Makefile中的ifeq 多條件使用 - 程式前沿

網上關於makefile中ifeq的介紹已經很多了，為什麼我還要在寫這篇文章，因為他們只說了if else兩種條件的情況，並沒有講多於兩種條件情況的使用。

#31. 【已解决】Makefile中如何定义和判断布尔类型变量 - 在路上

unix – Makefile ifeq logical AND – Stack Overflow. 不确定Makefile中bool变量是否是true或false. 需要先去判断变量值. makefile variable bool.

#32. Makefile 語法簡介-软件开发平台及语言笔记大全(超详细)

若執行完某條 Command但傳回了錯誤值，make 就會中斷執行。因為每條 Command 會啟動一個新的 Shell，所以有時執行的指令必須寫在同一行，像是使用 if 來進行條件 ...

#33. zephyr/Makefile at master - GitHub

# Do we want to locate output files in a separate directory? ifeq ("$(origin O)", "command line"). KBUILD_OUTPUT ...

#34. if..else in Makefile | Toolbox Tech

Subject: [shellscript-l] if..else in Makefile. How we can write a if ..else for integer value. There is a keyword ifeq or ifneq but thast is for string.

#35. Makefile.rules - Apple Open Source

Defines += -D_DEBUG endif # If ENABLE_EXPENSIVE_CHECKS=1 is specified (make command line or # configured), then enable expensive checks by defining the ...

#36. 第七章: Makefile的条件执行

1. “ifeq”表示条件语句的开始，并指定了一个比较条件（相等）。之后是用圆括号括包围的、使用逗号“,”分割的两个参数，和关键字“ifeq”用空格分开。参数中的变量引用在进行 ...

#37. makefile if defined - 軟體兄弟

makefile if defined, TL;DR: Use the error function: ifndef MY_FLAG $(error MY_FLAG is not set) endif. Note that the lines must not be indent...

#38. Makefile 中ifeq ifneq 等用法- 碼上快樂

（1）ifeq的用法. ifeq ($（變量名），變量值) ........ else ifeq ($(..), ..) ......... else ......... endif. （2）最近在學習makefile的過程中 ...

#39. variables - Makefile:ifeq 指令将特殊变量与常量进行比较不起作用

问题是make 总是转到我测试的第二个分支，即使我的文件在mySpecialDirectory 中并且echo 确实打印了“mySpecialDirectory”。 .c.o .cpp.o .cc.o: ifeq ($(*D), ...

#40. Finding the makefile - IBM

You can use a different file by assigning a filename to MAKESTARTUP on the make command line as if it were a macro. You can edit the contents of the startup ...

#41. Makefile中if函数和ifeq/ifneq语句

注意：Makefile中没有if语句，只有ifeq ifneq语句. 8.5 if 函数函数“ if”提供了一个在函数上下文中实现条件判断的功能。就像make所支持的条件语句— ifeq（参考7.2.1.1 ...

#42. Makefile 語法和示範

make 命令和 Makefile 的結合，不僅控制原始碼的編譯，也可以用來準備使用手冊文件、安裝應用程式到目的目錄中。使用 Makefile 的好處. 如果這個專案沒有編譯過，那麼我們 ...

#43. Makefile Cheat Sheet - USC Bytes

If the target is found, the target's dependencies will be run as needed, then the target commands will be run. Oftentimes these commands start with g++ , but ...

#44. makefile 條件語句的例子 - Kingsman的部落格- 痞客邦

添加到Shell的参数个数if [ $# -eq 2 ] ; then //input parametet number is 2 fi $1～$

#45. Makefile

This Makefile is for building clm tools on AIX, Linux (with pgf90 or # lf95 ... endif # Set if Shared memory multi-processing will be used ifeq ($(SMP) ...

#46. automake - 在Makefile.am 中使用"else if"，如何編寫多個條件

我想用autoconf/automake编译我的项目。有我configure.ac 2条件中定义AM_CONDITIONAL(HAVE_CLIENT, test $enable-clien.

#47. 簡單學makefile：makefile 介紹與範例程式

在軟體開發中，make 是一個工具程式，經由讀取一個叫做makefile 的檔案， ... 類似C 語言中的預編譯#if，根據某些情況指定Makefile 中的有效部分。

#48. Tutorial on writing makefiles

A makefile is the set of instructions that you use to tell makepp how to build ... If you make changes to gui.cxx but not to processing.cxx , then you don't ...

#49. Kernel Makefile (一) @ 檸檬傻斌-無料

如果你在shell prompt只下make命令而已，第一個rule永遠被執行。 ... 其中$(if $(KBUILD_VERBOSE:1=)),@) 的用法看起來有點蹊蹺，實際上$(VAR:x=y) 這 ...

#50. Default Makefile and Make Target

If you do not specify a particular makefile or make target, TeamWare looks for a file named makefile in the build directory and uses the first make target in ...

#51. Makefile If-Then Else和循环 - 中文— it-swarm.cn

有人可以解释如何在Makefile中使用if-then语句和for循环吗？我似乎无法通过示例找到任何好的文档。...

#52. Makefile if语句不使用导出变量求值？ - 或代码

Makefile if 语句不使用导出变量求值？ - | 这是我其他问题的分支。为了使导出变量有效，我需要做些特别的事情吗？因此，我正在从包含另一个位置的主Makefile ...

#53. AND && in ifeq in makefile - UNIX and Linux Forums

AND && in ifeq in makefile. Original Post by trento17. trento17. 12:03 AM 10-25-2011. Hi, Can anybody help mw how to use 2 conditinal directives in makefile ...

#54. 深入解析Makefile系列(5) -- 逻辑处理 - 知乎专栏

ifeq 与后面接的条件判断式之间必须有空格。执行语句即\<text-if-true>部分可以有空格和tab键。这个语句的本意就是比较var1和var2 ...

#55. Checking environment variables' value in Makefile - Unix ...

The ifeq() directive has to be in column 1, remove any leading whitespace ie test_target: ifeq ($(TEST),"TRUE") echo "Do something" endif. ^ no whitespace.

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#57. Multi-conditional use of ifeq in Makefile - Programmer Sought

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#58. makefile | Better life with Ubuntu

wenchiching 所撰寫有關makefile 的文章. ... vim jump between Makefile ifeq endif ... 'command line' if variable was defined on the command line.

#59. Makefile Tutorial By Example

If any file's dependencies changes, then the file will get recompiled: What alternatives are there to Make? Popular C/C++ alternative build systems are SCons, ...

#60. Various statements in a makefile - Ubuntu Manpage Repository

makepp_statements -- Various statements in a makefile ... ifeq ($(STR1),$(STR2)) makefile lines if true else makefile lines if false endif If the two ...

#61. Abort makefile if variable not set

makefile if not equal makefile set variable if not set makefile ifeq not working makefile ifeq string makefile if file exists makefile check if variable is ...

#62. GNU Make - Conditional Parts of Makefiles

The text-if-true may be any lines of text, to be considered as part of the makefile if the condition is true. If the condition is false, no text is used instead ...

#63. makefile--if条件判断语句的语法与使用 - 掘金

1. makefile中支持条件判断语句条件判断语句只能用于控制make实际执行的语句；但是，不能控制规则中命令的执行过程。 2. 条件判断语句的语法说明： 3.

#64. Makefile projects | CLion - JetBrains

Refer to GNU Autotools if your Makefile project requires pre-configuration. Open a Makefile project. Select File | Open ...

#65. makefile(03)_条件判断_在路上的技术博客

条件判断关键字： makefile(03)_条件判断_makefile_02 示例： .PHONY : test var1 := A var2 := $(var1) var3 := test: ifeq ($(var1),$(var2)) @echo ...

#66. 条件指令- 《Makefile 基础教程》 - 书栈网· BookStack

如果两个参数匹配，则遵循ifeq 后面的命令行；否则会被忽略。 ifneq （if not eqaul）指令。它包含两个参数，用逗号分隔并用圆括号包围。变量替换在两个 ...

#67. make(1) - Linux manual page - man7.org

If makefile is '-', the standard input is read. make updates a target if it depends on prerequisite files that have been modified since the ...

#68. I'm a Makefile PHONY - vsupalov.com

Follow along if you like. Makefiles and I ¶. I use Makefiles everywhere. But not to actually handle build dependencies. Gosh no. I use them to run tasks ...

#69. Makefile Tools - Visual Studio Marketplace

Extension for Visual Studio Code - Provide makefile support in VS Code: ... If your Makefile does not reside in the root of your folder, ...

#70. Makefile ifeq逻辑或

如何使用make ifeq 运算符执行逻辑或？例如，我有（简体）： ifeq ($(GCC_MINOR), 4) CFLAGS += -fno-strict-overflow endif ifeq ($(GCC_MINOR), ...

#71. makefile 條件判斷用法和自定函式用法簡單記錄 - IT人

makefile 條件判斷用法和自定函式用法簡單記錄 ... ar endif # ifeq ($(SHELL),/bin/sh) # SHELL:=/bin/bash # endif ifneq ($(SHELL),/bin/bash) ...

#72. Makefile Names - GNU `make'

The first name checked, GNUmakefile , is not recommended for most makefiles. You should use this name if you have a makefile that is specific to GNU make , and ...

#73. GNU make: 7. Makefileの条件文 - 残念ながら, ここには何も ...

それらは、 ifeq 、 else 、と endif です。条件文は ifreq ディレクティブで始まり、条件を指定します。2つの引数があり、それらはカンマで区切られ、 ...

#74. make(1) - OpenBSD manual pages

Environment variables override macro assignments within makefiles. -f mk: Read file mk instead of the default makefile. If mk is ' - ' ...

#75. 如何在Makefile.am中用“else if”写入多个条件

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#76. Makefile多个if条件同时判断的一个简单的思路 - cstriker1407的 ...

由于Makefile里面的if函数无法进行与或非的条件组合，这里备注一个简单的思路，即利用makefile的字符串拼接校验方式来进行最后的组合校验。

#77. Linux: How to Run make - dummies

When run this way, GNU make looks for a file named GNUmakefile, makefile, or Makefile — in that order. If make finds one of these makefiles, it builds the first ...

#78. [Common]Makefile check if file exists | by CH Hsieh - Medium

ref: http://www.humbug.in/2012/makefile-check-if-a-file-exists-using-wildcard-function/. “[Common]Makefile check if file exists” is ...

#79. What values do i have to define in the makefile if... - NXP ...

Content originally posted in LPCWare by kabirbansod on Mon Jun 22 01:37:36 MST 2015 Hi all, I am trying to make a project for my custom ...

#80. Configure Toolchain or Template Makefile Build Process

tlc — Create Visual C/C++ Solution File for Simulink Coder. To see if a model has been upgraded: If the Toolchain and Build configuration configuration ...

#81. A Simple Makefile Tutorial - Colby Computer Science

c files to the mix. Unfortunately, this approach to compilation has two downfalls. First, if you lose the compile command or switch computers you have to retype ...

#82. Makefile conditional steps for some build configurations?

ifeq "$(CONF)" == "config1_name" ..post-build stuff.. endif. The $(CONF) value won't work because it isn't set when the Makefile is parsed.

#83. 1 Make & Makefile Conditional Macros

If targetname is not provided, then the make executes the first target in the file. ▫ The command lines start with a tab character ('\t').

#84. make - The Open Group Publications Catalog

Targets shall not be updated if this option is specified. However, a makefile command line (associated with the targets) with a plus sign ( '+' ) prefix ...

#85. Makefile ifeq逻辑或| 经验摘录 - 问题列表- 第1页

如何使用make的 ifeq 运算符执行逻辑OR ？例如,我有(简化): ifeq ($(GCC_MINOR), 4) CFLAGS += -fno-strict-overflow endif ifeq ($(GCC_MINOR), ...

#86. The make (UNIX) utility

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makefile -gmake -*- # $Id: Makefile.meta_l 93962 2021-06-10 13:06:43Z ucko $ ### Rules for ... define make_one_usr_proj +@x_mfile=$(if $(wildcard Makefile.

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#90. 跟我一起写Makefile:使用条件判断- Ubuntu中文

可见，在上面示例的这个规则中，目标“foo”可以根据变量“$(CC)”值来选取不同的函数库来编译程序。我们可以从上面的示例中看到三个关键字：ifeq、else和endif。ifeq的意思 ...

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makefile 中两重if判断法一： ifeq ($(GCC_MINOR),$(filter $(GCC_MINOR),4 5)) filter X, A B will return those of A,B that are equal X.

#93. [FreeBSD]Makefile - 佛祖球球

在command line中，輸入make指令預設是執行該目錄的Makefile，但也可以透過-f 參數指向其他檔案 ... 條件判斷式(.if,.elif,.else)及相關函式.

#94. Makefile:condition to check whether a file exists ?

Now i have written a make clean target to rm these files if these extst but for better programming it should first check it that the file ...

#95. Clion run makefile

在没有项目模型的情况下，CLion在非常基本的级别上If we try to run make after the changes, only the target say_hello will be executed.

#96. Makefile filter ifeq

makefile filter ifeq See section Defining Canned Command Sequences. ... Makefile ifeq、ifneq、ifdef和ifndef（条件判断） < 上一页Makefile隐含规则Makefile伪 ...

#97. How to Create a Simple Makefile - YouTube

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關於 makefile if ，我們在網路上蒐集到這些相關的討論、資訊與評價

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