[MacPorts] #61546: avr-gdb fails to build on macOS 11 Big Sur

[MacPorts]

#61546: avr-gdb fails to build on macOS 11 Big Sur
--------------------+---------------------
 Reporter:  neilt   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.4
 Keywords:          |       Port:  avr-gdb
--------------------+---------------------
 The apparent first error.

 {{{
 :info:build /usr/bin/clang -c -DHAVE_CONFIG_H    -I. -I.
 -DRL_LIBRARY_VERSION='"6.2"' -pipe -Os
 -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX11.0.sdk -arch
 x86_64 bind.c
 :info:build yes
 :info:build checking minix/config.h usability... rltty.c:83:7: error:
 implicit declaration of function 'ioctl' is invalid in C99 [-Werror
 ,-Wimplicit-function-declaration]
 :info:build   if (ioctl (tty, TIOCGWINSZ, &w) == 0)
 :info:build       ^
 :info:build rltty.c:720:3: error: implicit declaration of function 'ioctl'
 is invalid in C99 [-Werror,-Wimplicit-function-declaration]
 :info:build   ioctl (fildes, TIOCSTART, 0);
 :info:build   ^
 :info:build rltty.c:759:3: error: implicit declaration of function 'ioctl'
 is invalid in C99 [-Werror,-Wimplicit-function-declaration]
 :info:build   ioctl (fildes, TIOCSTOP, 0);
 :info:build   ^
 :info:build rm -f isearch.o
 :info:build 3 errors generated.
 }}}

 {{{
 ProductName:    macOS
 ProductVersion: 11.0.1
 BuildVersion:   20B28
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/61546>
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