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autoconf: Add test for OLD_ICONV (squelching compiler warning) 

Update configure.ac (and config.mak.in) to keep up with git
development by adding [compile] test whether your library has an old
iconv(), where the second (input buffer pointer) parameter is declared
with type (const char **) (OLD_ICONV).

Test-proposed-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jakub Narebski 2007-12-07 02:27:20 +01:00 committed by Junio C Hamano
parent fe4aafba28
commit 0f7a9c9b7b
2 changed files with 23 additions and 0 deletions
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1
config.mak.in
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@ -41,4 +41,5 @@ NO_STRTOUMAX=@NO_STRTOUMAX@
NO_SETENV=@NO_SETENV@
NO_MKDTEMP=@NO_MKDTEMP@
NO_ICONV=@NO_ICONV@
OLD_ICONV=@OLD_ICONV@
NO_DEFLATE_BOUND=@NO_DEFLATE_BOUND@

22
configure.ac
View File

@ -212,6 +212,28 @@ test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
## Checks for header files.
AC_MSG_NOTICE([CHECKS for header files])
#
# Define OLD_ICONV if your library has an old iconv(), where the second
# (input buffer pointer) parameter is declared with type (const char **).
AC_DEFUN([OLDICONVTEST_SRC], [[
#include <iconv.h>
extern size_t iconv(iconv_t cd,
char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft);
int main(void)
{
return 0;
}
]])
AC_MSG_CHECKING([for old iconv()])
AC_COMPILE_IFELSE(OLDICONVTEST_SRC,
[AC_MSG_RESULT([no])],
[AC_MSG_RESULT([yes])
OLD_ICONV=UnfortunatelyYes])
AC_SUBST(OLD_ICONV)
## Checks for typedefs, structures, and compiler characteristics.