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build: workaround compiler warning -Wunused-variable in meson detection

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

  Running compile:
  ...
  Command line: `cc /data/src/glib/build/meson-private/tmplkxa94er/testfile.c -o /data/src/glib/build/meson-private/tmplkxa94er/output.exe -Werror -Wall -D_FILE_OFFSET_BITS=64 -O0 -std=gnu99` -> 1
  stderr:
  /data/src/glib/build/meson-private/tmplkxa94er/testfile.c: In function 'main':
  /data/src/glib/build/meson-private/tmplkxa94er/testfile.c:3:24: error: unused variable 'codeset' [-Werror=unused-variable]
      3 |                  char *codeset = nl_langinfo (CODESET);
        |                        ^~~~~~~
  cc1: all warnings being treated as errors
  -----------
  Checking if "nl_langinfo and CODESET" : links: NO
This commit is contained in:
Thomas Haller 2024-02-07 10:53:41 +01:00
parent 509e599eed
commit bcb6431bff
1 changed files with 4 additions and 0 deletions
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meson.build
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@ -1310,6 +1310,7 @@ endif
if cc.links('''#include <langinfo.h>
int main (int argc, char ** argv) {
char *codeset = nl_langinfo (CODESET);
(void) codeset;
return 0;
}''', name : 'nl_langinfo and CODESET')
glib_conf.set('HAVE_LANGINFO_CODESET', 1)
@ -1437,6 +1438,7 @@ endif
if cc.links('''#include <langinfo.h>
int main (int argc, char ** argv) {
char *codeset = nl_langinfo (_NL_TIME_CODESET);
(void) codeset;
return 0;
}''', name : 'nl_langinfo and _NL_TIME_CODESET')
glib_conf.set('HAVE_LANGINFO_TIME_CODESET', 1)
@ -1507,6 +1509,7 @@ if cc.compiles('''#include <sys/types.h>
#include <inttypes.h>
void some_func (void) {
uintmax_t i = (uintmax_t) -1;
(void) i;
}''', name : 'uintmax_t in inttypes.h')
glib_conf.set('HAVE_INTTYPES_H_WITH_UINTMAX', 1)
found_uintmax_t = true
@ -1519,6 +1522,7 @@ if cc.compiles('''#include <sys/types.h>
#include <stdint.h>
void some_func (void) {
uintmax_t i = (uintmax_t) -1;
(void) i;
}''', name : 'uintmax_t in stdint.h')
glib_conf.set('HAVE_STDINT_H_WITH_UINTMAX', 1)
found_uintmax_t = true