check_func_headers iconv.h iconv
check_ld cc
check_cc
BEGIN /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.AMOibxOc.c
    1   #include <iconv.h>
    2   long check_iconv(void) { return (long) iconv; }
    3   int main(void) { return 0; }
END /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.AMOibxOc.c
gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -mdynamic-no-pic -fomit-frame-pointer -fPIC -c -o /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.yYBXsjUh.o /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.AMOibxOc.c
gcc -Wl,-dynamic,-search_paths_first -o /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.H6HEYV1k /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.yYBXsjUh.o -lbz2 -lz
Undefined symbols for architecture x86_64:
  "_iconv", referenced from:
      _check_iconv in ffconf.yYBXsjUh.o
     (maybe you meant: _check_iconv)
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
check_lib2 iconv.h iconv -liconv
check_func_headers iconv.h iconv -liconv
check_ld cc -liconv
check_cc
BEGIN /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.AMOibxOc.c
    1   #include <iconv.h>
    2   long check_iconv(void) { return (long) iconv; }
    3   int main(void) { return 0; }
END /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.AMOibxOc.c
gcc -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DPIC -std=c99 -mdynamic-no-pic -fomit-frame-pointer -fPIC -c -o /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.yYBXsjUh.o /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.AMOibxOc.c
gcc -Wl,-dynamic,-search_paths_first -o /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.H6HEYV1k /var/folders/Rz/RzQTCSLsFPWQeOEO5EXsJE+++TI/-Tmp-//ffconf.yYBXsjUh.o -liconv -lbz2 -lz