PSPP-BUG: [bug #60069] implicit ioctl is invalid c99

[Jeremy Lavergne]

URL:
  <https://savannah.gnu.org/bugs/?60069>

                 Summary: implicit ioctl is invalid c99
                 Project: PSPP
            Submitted by: snc
            Submitted on: Tue 16 Feb 2021 09:09:25 PM UTC
                Category: Compilation/Portability
                Severity: 5 - Average
                  Status: None
             Assigned to: None
             Open/Closed: Open
                 Release: None
         Discussion Lock: Any
                  Effort: 0.00

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Details:

```
libtool: compile:  /usr/bin/clang -DHAVE_CONFIG_H -I.
-I/opt/local/include/libxml2 -I./gl -I./gl -DINSTALLDIR=\"/opt/local/bin\"
-I./src -I./lib -Isrc -I./src/language/stats -I./src/language/expressions
-I./src/language/expressions -Isrc -I/opt/local/include
-isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk
-I/opt/local/include/pango-1.0 -I/opt/local/include/harfbuzz
-I/opt/local/include/pango-1.0 -I/opt/local/include/fribidi
-I/opt/local/include/cairo -I/opt/local/include/glib-2.0
-I/opt/local/lib/glib-2.0/include -I/opt/local/include/pixman-1
-I/opt/local/include/ossp -I/opt/local/include/freetype2
-I/opt/local/include/libpng16 -Wall -Wextra -Wwrite-strings
-Wstrict-prototypes -Wpointer-arith -Wno-sign-compare -Wmissing-prototypes
-pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk
-arch x86_64 -DGCC_LINT -MT src/output/liboutput_la-ascii.lo -MD -MP -MF
src/output/.deps/liboutput_la-ascii.Tpo -c src/output/ascii.c  -fno-common
-DPIC -o src/output/.libs/liboutput_la-ascii.o
src/output/ascii.c:1125:12: error: implicit declaration of function 'ioctl' is
invalid in C99 [-Werror,-Wimplicit-function-declaration]
      if (!ioctl (0, TIOCGWINSZ, &ws))
           ^
1 error generated.
```

Think the message is straightforward. Let me know if anything else is needed.

Cross reference https://trac.macports.org/ticket/62147




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