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# Based on the M4 macro by Bruno Haible.
def exists(env):
return True
def generate(env):
env['custom_tests']['CheckIconv'] = CheckIconv
def _CheckIconvPath(context,path):
# Some systems have iconv in libc, some have it in libiconv (OSF/1 and
# those with the standalone portable libiconv installed).
context.Message("checking for iconv in " + path)
main = """
int main()
{
iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);
return 0;
}"""
have_giconv_iconv = context.TryLink("""
#include <stdlib.h>
#include <giconv.h>
""" + main, '.c')
if have_giconv_iconv:
context.Result(1)
return ("giconv.h", "")
have_iconv_iconv = context.TryLink("""
#include <stdlib.h>
#include <iconv.h>
""" + main, '.c')
if have_iconv_iconv:
context.Result(1)
return ("iconv.h", "")
#FIXME: Add -lgiconv
have_giconv_lib_iconv = context.TryLink("""
#include <stdlib.h>
#include <giconv.h>
""" + main, '.c')
if have_giconv_lib_iconv:
context.Result(1)
return ("giconv.h", "-lgiconv")
#FIXME: Add -liconv
have_iconv_lib_iconv = context.TryLink("""
#include <stdlib.h>
#include <iconv.h>
"""+main,'.c')
if have_iconv_lib_iconv:
context.Result(1)
return ("iconv.h", "-liconv")
return None
def CheckIconv(context):
context.Message("checking for iconv")
look_dirs = ['/usr','/usr/local','/sw']
for p in look_dirs:
_CheckIconvPath(context,p) #FIXME: Handle return value
if context.TryRun("""
#include <iconv.h>
main() {
iconv_t cd = iconv_open("ASCII", "UCS-2LE");
if (cd == 0 || cd == (iconv_t)-1) return -1;
return 0;
}
""", '.c'):
context.Result(1)
return (1,[])
context.Result(0)
return (0,[])
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