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docs: Use string split -n for pkg-config

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It can in some cases give a trailing space, which causes us to return
an empty element.

Fixes #7465.
This commit is contained in:
Fabian Homborg 2020-11-08 13:40:00 +01:00
parent b0f338cf14
commit e5061bcda1
1 changed files with 4 additions and 2 deletions
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doc_src/faq.rst
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@ -196,9 +196,11 @@ In the overwhelming majority of cases, splitting on spaces is unwanted, so this
However sometimes, especially with ``pkg-config`` and related tools, splitting on spaces is needed.
In these cases use ``string split " "`` like::
In these cases use ``string split -n " "`` like::
g++ example_01.cpp (pkg-config --cflags --libs gtk+-2.0 | string split " ")
g++ example_01.cpp (pkg-config --cflags --libs gtk+-2.0 | string split -n " ")
The ``-n`` is so empty elements are removed like POSIX shells would do.
How do I get the exit status of a command?
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