makefile if not
This reflects the behavior of the ifndef conditional, so that a variable defined to an empty value is also considered "undefined". But this is only ...,The following example of a conditional tells make to use one set of libraries if the ... The result is that ' CC=gcc ' as an argument to make changes not only which ... ,There are three functions that provide conditional expansion. A key aspect of these functions is that not all of the arguments are expanded initially. Only those ... ,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. The syntax ... ,Syntax of Conditionals 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. If the condition is true, text-if-true is used; otherwise, text-if-fal,Syntax of Conditionals. 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. If the condition is true, text-if-true is used; otherwise, text-if-fa, You're mixing Make syntax and shell syntax in a way that is just dizzying. ... asm/unistd_32.h and asm-386/unistd.h does not exist) endif endif., Edited following correct observation that I wasn't pointing to the exact correct location. Conditionals usually use the ifeq/ifneq/ifdef/ifndef ..., conditional-directive text-if-true endif ... If Not Equal Syntax ... word of warning that different versions of Make have slightly different syntax, none ..., Note that, due to the time of evaluation, make conditionals ( ifeq , ifneq ...) cannot be used in recipes the way you tried. Use shell conditionals ...
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 makefile if not 相關參考資料
Abort makefile if variable not set - Stack Overflow
This reflects the behavior of the ifndef conditional, so that a variable defined to an empty value is also considered "undefined". But this is only ... https://stackoverflow.com Conditional Example (GNU make) - GNU.org
The following example of a conditional tells make to use one set of libraries if the ... The result is that ' CC=gcc ' as an argument to make changes not only which ... https://www.gnu.org Conditional Functions (GNU make) - GNU.org
There are three functions that provide conditional expansion. A key aspect of these functions is that not all of the arguments are expanded initially. Only those ... https://www.gnu.org Conditional Syntax (GNU make) - GNU.org
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. The syntax ... https://www.gnu.org GNU make - Conditional Parts of Makefiles
Syntax of Conditionals 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. If the conditio... https://ftp.gnu.org GNU Make - Conditional Parts of Makefiles - MIT
Syntax of Conditionals. 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. If the conditi... http://web.mit.edu If conditions in a Makefile, inside a target - Stack Overflow
You're mixing Make syntax and shell syntax in a way that is just dizzying. ... asm/unistd_32.h and asm-386/unistd.h does not exist) endif endif. https://stackoverflow.com Makefile $if ... , ...} syntax - Stack Overflow
Edited following correct observation that I wasn't pointing to the exact correct location. Conditionals usually use the ifeq/ifneq/ifdef/ifndef ... https://stackoverflow.com Makefile If-Then Else and Loops - Stack Overflow
conditional-directive text-if-true endif ... If Not Equal Syntax ... word of warning that different versions of Make have slightly different syntax, none ... https://stackoverflow.com Makefile test if variable is not empty - Stack Overflow
Note that, due to the time of evaluation, make conditionals ( ifeq , ifneq ...) cannot be used in recipes the way you tried. Use shell conditionals ... https://stackoverflow.com |