What's the meaning of ?= in a kernel makefile?
2997
What is the difference between the GNU Makefile variable assignments =, ?=, := and +=?
36012
What is the difference between ./ and ../?
43370
What does "|=" mean? (pipe equal operator)
9227
C extension: ? operators
28353
On what systems is //foo/bar different from /foo/bar?
48170
What is the purpose of a question mark after a type (for example: int? myVariable)?
12076
What does this caret ^ syntax, with void on either side mean?
101128
What is "?:" notation in JavaScript?
13882
What does 2>/dev/null mean?
127325
Is it possible to create a multi-line string variable in a Makefile
96849
What does =~ do in Perl?
709
What does '?' do in C++?
157667
what is the meaning of \ | in a map vim command?
158810
Why does >= return false when == returns true for null values?
106056
Wildcard targets in a Makefile
122699
`test` and `[` - different binaries, any difference?
13818
What is the difference between /opt and /usr/local?