ARM gdb compilation fails with implicit function declaration error ioctl

[Christoph Kukulies]

Excuses if is not actually a macports issue but I’m a bit lost.

I’m about to build this:
https://gitlab.com/LinkiTools/binutils-gdb <https://gitlab.com/LinkiTools/binutils-gdb>


/Users/kuku/Downloads/binutils-gdb-users-ARM-embedded-gdb-master-2018q4/




Running ./configure and make in this directory ends with an error:

config.status: executing default commands
rm -f readline.o
gcc -c -DHAVE_CONFIG_H    -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O2 readline.c
rm -f vi_mode.o
gcc -c -DHAVE_CONFIG_H    -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O2 vi_mode.c
rm -f funmap.o
gcc -c -DHAVE_CONFIG_H    -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O2 funmap.c
rm -f keymaps.o
gcc -c -DHAVE_CONFIG_H    -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O2 keymaps.c
rm -f parens.o
gcc -c -DHAVE_CONFIG_H    -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O2 parens.c
rm -f search.o
gcc -c -DHAVE_CONFIG_H    -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O2 search.c
rm -f rltty.o
gcc -c -DHAVE_CONFIG_H    -I. -I. -DRL_LIBRARY_VERSION='"6.2"' -g -O2 rltty.c
rltty.c:83:7: error: implicit declaration of function 'ioctl' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
  if (ioctl (tty, TIOCGWINSZ, &w) == 0)
      ^
rltty.c:720:3: error: implicit declaration of function 'ioctl' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
  ioctl (fildes, TIOCSTART, 0);
  ^
rltty.c:759:3: error: implicit declaration of function 'ioctl' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
  ioctl (fildes, TIOCSTOP, 0);
  ^
3 errors generated.
make[2]: *** [rltty.o] Error 1
make[1]: *** [all-readline] Error 2
make: *** [all] Error 2



Is there a way to either pass gcc an appropriate -W switch to overcome this error or „repair“ the readline source accordingly?


$ gcc --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/c++/4.2.1
Apple clang version 12.0.0 (clang-1200.0.32.28)
Target: x86_64-apple-darwin19.6.0
Thread model: posix
InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

OS is macOS Catalina 10.15.7

Help greatly appreciated.

(reason why not using a binary package is that I want to apply a patch to arm-none-eabi-gdb.

Thanks

Christoph Kukulies



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