gistfile1.txt

Code:
 #include <fts.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <limits.h>

        #if defined __stub_fts_open || defined __stub___fts_open
        fail fail fail this function is not going to work
        #endif
        
int main(void) {
            void *a = (void*) &fts_open;
            long long b = (long long) a;
            return (int) b;
        }
Compiler stdout:
 
Compiler stderr:
 In file included from /home/andy/src/rmw/builddir/meson-private/tmp61m8hu03/testfile.c:1:
/usr/include/fts.h:42:2: error: unknown type name 'dev_t'
        dev_t fts_dev;                  /* starting device # */
        ^
/usr/include/fts.h:45:2: error: unknown type name 'size_t'
        size_t fts_pathlen;             /* sizeof(path) */
        ^
/usr/include/fts.h:73:2: error: unknown type name 'size_t'
        size_t fts_pathlen;             /* strlen(fts_path) */
        ^
/usr/include/fts.h:74:2: error: unknown type name 'size_t'
        size_t fts_namelen;             /* strlen(fts_name) */
        ^
/usr/include/fts.h:76:2: error: unknown type name 'ino_t'
        ino_t fts_ino;                  /* inode */
        ^
/usr/include/fts.h:77:2: error: unknown type name 'dev_t'
        dev_t fts_dev;                  /* device */
        ^
/usr/include/fts.h:78:2: error: unknown type name 'nlink_t'
        nlink_t fts_nlink;              /* link count */
        ^
/usr/include/fts.h:116:1: error: unknown type name '__BEGIN_DECLS'
__BEGIN_DECLS
^
/usr/include/fts.h:117:7: error: expected ';' after top level declarator
FTSENT  *fts_children(FTS *, int);
      ^
/usr/include/fts.h:123:1: error: unknown type name '__END_DECLS'
__END_DECLS
^
10 errors generated.

Running compile:
Working directory:  /home/andy/src/rmw/builddir/meson-private/tmp5gdl2ysm
Command line:  cc /home/andy/src/rmw/builddir/meson-private/tmp5gdl2ysm/testfile.c -o /home/andy/src/rmw/builddir/meson-private/tmp5gdl2ysm/output.exe -D_FILE_OFFSET_BITS=64 -O0 

Code:
 #include <fts.h>
#include <sys/types.h>
#include <sys/stat.h>
        int main(void) {

        /* With some toolchains (MSYS2/mingw for example) the compiler
         * provides various builtins which are not really implemented and
         * fall back to the stdlib where they aren't provided and fail at
         * build/link time. In case the user provides a header, including
         * the header didn't lead to the function being defined, and the
         * function we are checking isn't a builtin itself we assume the
         * builtin is not functional and we just error out. */
        #if !0 && !defined(fts_open) && !0
            #error "No definition for __builtin_fts_open found in the prefix"
        #endif

        #ifdef __has_builtin
            #if !__has_builtin(__builtin_fts_open)
                #error "__builtin_fts_open not found"
            #endif
        #elif ! defined(fts_open)
            __builtin_fts_open;
        #endif
        return 0;
        }
Compiler stdout:
 
Compiler stderr:
 In file included from /home/andy/src/rmw/builddir/meson-private/tmp5gdl2ysm/testfile.c:1:
/usr/include/fts.h:42:2: error: unknown type name 'dev_t'
        dev_t fts_dev;                  /* starting device # */
        ^
/usr/include/fts.h:45:2: error: unknown type name 'size_t'
        size_t fts_pathlen;             /* sizeof(path) */
        ^
/usr/include/fts.h:73:2: error: unknown type name 'size_t'
        size_t fts_pathlen;             /* strlen(fts_path) */
        ^
/usr/include/fts.h:74:2: error: unknown type name 'size_t'
        size_t fts_namelen;             /* strlen(fts_name) */
        ^
/usr/include/fts.h:76:2: error: unknown type name 'ino_t'
        ino_t fts_ino;                  /* inode */
        ^
/usr/include/fts.h:77:2: error: unknown type name 'dev_t'
        dev_t fts_dev;                  /* device */
        ^
/usr/include/fts.h:78:2: error: unknown type name 'nlink_t'
        nlink_t fts_nlink;              /* link count */
        ^
/usr/include/fts.h:116:1: error: unknown type name '__BEGIN_DECLS'
__BEGIN_DECLS
^
/usr/include/fts.h:117:7: error: expected ';' after top level declarator
FTSENT  *fts_children(FTS *, int);
      ^
/usr/include/fts.h:123:1: error: unknown type name '__END_DECLS'
__END_DECLS
^
/home/andy/src/rmw/builddir/meson-private/tmp5gdl2ysm/testfile.c:14:14: error: "No definition for __builtin_fts_open found in the prefix"
            #error "No definition for __builtin_fts_open found in the prefix"
             ^
/home/andy/src/rmw/builddir/meson-private/tmp5gdl2ysm/testfile.c:19:18: error: "__builtin_fts_open not found"
                #error "__builtin_fts_open not found"
                 ^
12 errors generated.

Checking for function "fts_open" : NO 
Running compile:
Working directory:  /home/andy/src/rmw/builddir/meson-private/tmp1ty_tjf0
Command line:  cc /home/andy/src/rmw/builddir/meson-private/tmp1ty_tjf0/testfile.c -o /home/andy/src/rmw/builddir/meson-private/tmp1ty_tjf0/output.exe -D_FILE_OFFSET_BITS=64 -O0 -Wl,--start-group -lfts -Wl,--end-group -Wl,--allow-shlib-undefined 

Code:
 int main(void) { return 0; }

Compiler stdout:
 
Compiler stderr:
 ld: error: unable to find library -lfts
cc: error: linker command failed with exit code 1 (use -v to see invocation)


src/bsdutils/meson.build:3:4: ERROR: C shared or static library 'fts' not found