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build: fix compiler warning in gl_cv_func_frexpl_works meson build check

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Otherwise, `CFLAGS='-Wall -Werror' meson build` fails with:

  ...
  Command line: `cc ./glib/build/meson-private/tmp7iwplrgi/testfile.c -o ./glib/build/meson-private/tmp7iwplrgi/output.obj -c -O3 -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  ./glib/build/meson-private/tmp7iwplrgi/testfile.c: In function 'main':
  ./glib/build/meson-private/tmp7iwplrgi/testfile.c:83:21: error: unused variable 'y' [-Werror=unused-variable]
     83 |         long double y = frexpl (x, &exp);
        |                     ^
  cc1: all warnings being treated as errors
  -----------
  Checking if "frexpl prototype can be re-listed" compiles: NO

  glib/gnulib/meson.build:316:2: ERROR: Problem encountered: frexpl() is missing or broken beyond repair, and we have nothing to replace it with
This commit is contained in:
Thomas Haller 2024-02-07 10:53:41 +01:00
parent 90817d0fab
commit a65fa9a33f
1 changed files with 1 additions and 0 deletions
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glib/gnulib/gl_cv_func_frexpl_works/meson.build
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@ -86,6 +86,7 @@ int main()
long double y = frexpl (x, &exp);
/* On machines with IEEE854 arithmetic: x = 1.68105e-4932,
exp = -16382, y = 0.5. On Mac OS X 10.5: exp = -16384, y = 0.5. */
(void) y;
if (exp != LDBL_MIN_EXP - 1)
result |= 8;
}