[Octave-bug-tracker] [bug #61668] [octave-forge] (gsl) configure tests fail because main is defined with no return type

[Dmitri A. Sergatskov]

Follow-up Comment #11, bug#61668 (group octave):

I also see warnings about main w/o return type, but those do not look
detrimental:

...
conftest.cpp:21:1: warning: ISO C++ forbids declaration of 'main' with no type
[-Wreturn-type]
   21 | main()
      | ^~~~
configure:3166: $? = 0
configure:3189: g++ -c -g -O2 -I/usr/local/include/octave-9.0.1/octave 
conftest.cpp >&5
conftest.cpp:24:1: warning: ISO C++ forbids declaration of 'main' with no type
[-Wreturn-type]
   24 | main()
      | ^~~~
configure:3189: $? = 0
configure:3209: checking for cos in -lm
configure:3234: g++ -o conftest -g -O2   conftest.cpp -lm   >&5
conftest.cpp:28:6: warning: declaration of 'char cos()' conflicts with
built-in declaration 'double cos(double)' [-Wbuiltin-declaration-mismatch]
   28 | char cos ();
      |      ^~~
configure:3234: $? = 0
configure:3243: result: yes
...


Dmitri 
-- 



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