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build: avoid "-Werror=format-extra-args" warnings in detecting printf for gnulib

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

  Running compile:
  Working directory:  /data/src/glib/build/meson-private/tmpoozk2y4b
  Code:

  #include <stdio.h>
  #include <string.h>
  static char buf[100];
  static double zero = 0.0;
  int main ()
  {
    if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
        || (strcmp (buf, "       inf") != 0
            && strcmp (buf, "  infinity") != 0))
      return 1;
    return 0;
  }

  -----------
  Command line: `cc /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c -o /data/src/glib/build/meson-private/tmpoozk2y4b/output.exe -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c: In function 'main':
  /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c:8:21: error: too many arguments for format [-Werror=format-extra-args]
      8 |   if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
        |                     ^~~~~~~
  cc1: all warnings being treated as errors
  -----------
  Could not compile test file /data/src/glib/build/meson-private/tmpoozk2y4b/testfile.c: 1

  Checking if "printf supports the zero flag correctly" runs: DID NOT COMPILE
This commit is contained in:
Thomas Haller 2024-02-07 19:16:06 +01:00
parent bc0e53aa27
commit 5525672a5f
3 changed files with 5 additions and 5 deletions
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2
glib/gnulib/gl_cv_func_printf_directive_f/meson.build
View File

@ -15,7 +15,7 @@ static double zero = 0.0;
int main ()
{
int result = 0;
if (sprintf (buf, "%F %d", 1234567.0, 33, 44, 55) < 0
if (sprintf (buf, "%F %d", 1234567.0, 33) < 0
|| strcmp (buf, "1234567.000000 33") != 0)
result |= 1;
if (sprintf (buf, "%F", 1.0 / zero) < 0

2
glib/gnulib/gl_cv_func_printf_flag_zero/meson.build
View File

@ -15,7 +15,7 @@ static char buf[100];
static double zero = 0.0;
int main ()
{
if (sprintf (buf, "%010f", 1.0 / zero, 33, 44, 55) < 0
if (sprintf (buf, "%010f", 1.0 / zero) < 0
|| (strcmp (buf, " inf") != 0
&& strcmp (buf, " infinity") != 0))
return 1;

6
glib/gnulib/gl_cv_func_printf_long_double/meson.build
View File

@ -15,15 +15,15 @@ int main ()
{
int result = 0;
buf[0] = '\0';
if (sprintf (buf, "%Lf %d", 1.75L, 33, 44, 55) < 0
if (sprintf (buf, "%Lf %d", 1.75L, 33) < 0
|| strcmp (buf, "1.750000 33") != 0)
result |= 1;
buf[0] = '\0';
if (sprintf (buf, "%Le %d", 1.75L, 33, 44, 55) < 0
if (sprintf (buf, "%Le %d", 1.75L, 33) < 0
|| strcmp (buf, "1.750000e+00 33") != 0)
result |= 2;
buf[0] = '\0';
if (sprintf (buf, "%Lg %d", 1.75L, 33, 44, 55) < 0
if (sprintf (buf, "%Lg %d", 1.75L, 33) < 0
|| strcmp (buf, "1.75 33") != 0)
result |= 4;
return result;