mp3fs build error on Leopard i366

[arboz@…]

While building new port for mp3fs ​https://trac.macports.org/changeset/149164

The build fails with unrecognized command line option "-Wno-sign-conversion"

  CXX      transcode.o
cc1: error: unrecognized command line option "-Wno-sign-conversion"
cc1: error: unrecognized command line option "-Wno-sign-conversion"
cc1plus: error: unrecognized command line option "-Wno-sign-conversion"
make[1]: *** [transcode.o] Error 1

apparently my compiler does not recognize this warning flag

I changed the generated src/Makefile and removed that flag from WARNINGS

thusly

WARNINGS = -Wall -Wextra -Wconversion 
# -Wno-sign-conversion

Then called install and it proceeded with warnings

CXX      transcode.o
fuseops.c: In function ‘mp3fs_readdir’:
fuseops.c:166: warning: passing argument 4 of ‘filler’ with different width due to prototype
fuseops.c: In function ‘mp3fs_open’:
fuseops.c:268: warning: cast from pointer to integer of different size
fuseops.c: In function ‘mp3fs_read’:
fuseops.c:308: warning: cast to pointer from integer of different size
fuseops.c: In function ‘mp3fs_release’:
fuseops.c:353: warning: cast to pointer from integer of different size

..finished building and cleaned up.

I am not sure, but the conversions may be safe.

I am personally a bit fuzzy on the different compiler features but gcc tells me:

Warnings about conversions between signed and unsigned integers can be disabled by using -Wno-sign-conversion.

I haven't tested yet, but it seems good.

I am attaching the main.log

[arboz@…]

log after successful build