makefile regular expression
.c.o: declares a simple pattern rule that matches any file ending with .c and defines the same name, but with .o as the target. $* is an automatic make variable and expands to the matched part of the pattern. If it matched main.c , $* will be main . $<, Use regex character class. if [[ "$$INSTALL_GLOBALS" =~ ^[Yy]$ ]]. ^ in regex asserts that we are at the start and $ asserts thta we are at the end of a line. [yY] matches a single character whether it may be capital Y or small y .
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 makefile regular expression 相關參考資料
regex - Advanced pattern matching in Makefile - Stack Overflow
If I understood your question correctly, you have a bunch of *.source files, and want a rule that turns each into a *.target file, while picking two sub-strings from whatever the * expands to. Why no... https://stackoverflow.com makefile - I don't understand the regular expression in make file ...
.c.o: declares a simple pattern rule that matches any file ending with .c and defines the same name, but with .o as the target. $* is an automatic make variable and expands to the matched part of the ... https://stackoverflow.com regex - How to use regular expression in makefile if statement ...
Use regex character class. if [[ "$$INSTALL_GLOBALS" =~ ^[Yy]$ ]]. ^ in regex asserts that we are at the start and $ asserts thta we are at the end of a line. [yY] matches a single characte... https://stackoverflow.com makefile - Regex to select all .c files except ones with a certain ...
Do you really need a regex? make 's built-in functions can do this as well. ALL_SRCS := $(wildcard *.c) SRCS := $(filter-out ttem_endian_port%.c, $(ALL_SRCS)). https://stackoverflow.com makefile - Automated make system with regex pattern matching ...
To do it in GNU make, you can use one of two different "metaprogramming" models supported by GNU make: Auto-generated include files. In your main makefile, add -include generated.mk then wr... https://stackoverflow.com Makefile and $(wildcard) : Using complex regex - Stack Overflow
The relationship is no closer than that make expects to be supplied with a $(SHELL) that is sufficiently close to /bin/sh in certain respects. On Windows, many people use cmd.exe . You can always use... https://stackoverflow.com regex - Using $1 in regexp within a Makefile - Stack Overflow
Makefiles always interpret $ sequences before executing commands, disregarding any quoting. In order to escape $ in a Makefile, write it as $$ - that will result in a single $ in the command. https://stackoverflow.com regex - Makefile 'if' condition with regexp - Stack Overflow
case `uname -m` in i?86) echo "CFLAGS += -march=i486 -mtune=native" > configparms ;; esac. But I need to do this in makefile for a particular target. I have not found a method to make an ... https://stackoverflow.com regex - Why does this regular expression for sed break inside ...
-+ doesn't have any special meaning. Also, there's nothing wrong with GNU Make, I suppose. The expressions probably does match even in the first case, but the thing is probably that either. yo... https://stackoverflow.com GNU make: Pattern Rules
The prerequisites likewise use ' % ' to show how their names relate to the target name. Thus, a pattern rule ' %.o : %.c ' says how to make any file stem .o from another file stem .c .... https://www.gnu.org |