(Sorry for previous not on enlish! I did not realized it is english forum. )
I am looking for help with Make utility. I could not get help from the 'man' pages.
1. About Macro (as a variable): It is clear about defining any macro in beginning or in command line, but isn't it no way to redefine a macro during a processing?
I would need to setup some indicator variable in a dependency section and make some action in futher processing depend on its value.
Example:
IND1=0
SECT_0: DEP_1
<command>; \
<command>; \
if [ IND1 -eq 1 ]; then <command>; fi

DEP_1:
<command>; \
IND1=1
It comes out that the re-definition IND1 is not heppening. Maybe I should do it differently?

Another related problem that it seems there is no way to change an environment variable from any section. Seems that any section is processed in separate subshell?! Is it true?

So, is there any way to have a some kind of 'variable' in makefile, not just a 'constant' as it looks like with macro?

2. Initialization section: I know, it is .INIT: ..., but how to exit makefile if it would be nessesary or prevent to execute all available section if makefile is ran with no specific section name?