CODEWITHSUNDEEP
nsis
jimmy
jimmy

Reputation: 2031

NSIS basics go wrong

So this is a really basic question, but I can't seem to find what I am doing wrong.

So I am fiddling with defines in NSIS and it did not work as I would expect so I have scaled down the problem to its smallest part and I still can not make it work as I would expect.

Script looks as follows:

!ifndef b
!define b ""
!endif

!if $b=="b"
!define a "b"
!else
!define a "c"
!endif

Section
    MessageBox MB_OK "a: ${a} b: ${b}"
SectionEnd

I run it with the flag /Db=b.

The output is still:

a: "c" b: "b"

I am missing something trivial here!

Upvotes: 1

Views: 62

Answers (1)

Francisco R
Francisco R

Reputation: 4048

b is a define, not a variable:

!ifndef b
!define b ""
!endif

!if "${b}" == "b"    # <-- Modify this line.
!define a "b"
!else
!define a "c"
!endif

Section
    MessageBox MB_OK "a: ${a} b: ${b}"
SectionEnd

Also, I recommend you quote everything when using if because it'll give an error if define (or value of variable) is empty.

Upvotes: 2

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