mirror of
git://git.code.sf.net/p/zsh/code
synced 2024-12-28 16:15:02 +01:00
77 lines
2.3 KiB
Text
77 lines
2.3 KiB
Text
# Local additions to Autoconf macros.
|
|
# Copyright (C) 1992, 1994 Free Software Foundation, Inc.
|
|
# Francois Pinard <pinard@iro.umontreal.ca>, 1992.
|
|
|
|
# @defmac fp_PROG_CC_STDC
|
|
# @maindex PROG_CC_STDC
|
|
# @ovindex CC
|
|
# If the C compiler in not in ANSI C mode by default, try to add an option
|
|
# to output variable @code{CC} to make it so. This macro tries various
|
|
# options that select ANSI C on some system or another. It considers the
|
|
# compiler to be in ANSI C mode if it defines @code{__STDC__} to 1 and
|
|
# handles function prototypes correctly.
|
|
#
|
|
# If you use this macro, you should check after calling it whether the C
|
|
# compiler has been set to accept ANSI C; if not, the shell variable
|
|
# @code{fp_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
|
|
# code in ANSI C, you can make an un-ANSIfied copy of it by using the
|
|
# program @code{ansi2knr}, which comes with Ghostscript.
|
|
# @end defmac
|
|
|
|
define(fp_PROG_CC_STDC,
|
|
[AC_CACHE_CHECK(for ${CC-cc} option to accept ANSI C,
|
|
fp_cv_prog_cc_stdc,
|
|
[fp_cv_prog_cc_stdc=no
|
|
ac_save_CFLAGS="$CFLAGS"
|
|
# Don't try gcc -ansi; that turns off useful extensions and
|
|
# breaks some systems' header files.
|
|
# AIX -qlanglvl=ansi
|
|
# Ultrix and OSF/1 -std1
|
|
# HP-UX -Ae or -Aa -D_HPUX_SOURCE
|
|
# SVR4 -Xc
|
|
# For HP-UX, we try -Ae first; this turns on ANSI but also extensions,
|
|
# as well as defining _HPUX_SOURCE, and we can then use long long.
|
|
# We keep the old version for backward compatibility.
|
|
for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" -Xc
|
|
do
|
|
CFLAGS="$ac_save_CFLAGS $ac_arg"
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
|
|
[#ifndef __STDC__
|
|
choke me
|
|
#endif
|
|
]], [[int test (int i, double x);
|
|
struct s1 {int (*f) (int a);};
|
|
struct s2 {int (*f) (double a);};]])],
|
|
[fp_cv_prog_cc_stdc="$ac_arg"; break],[])
|
|
done
|
|
CFLAGS="$ac_save_CFLAGS"
|
|
])
|
|
case "x$fp_cv_prog_cc_stdc" in
|
|
x|xno) ;;
|
|
*) CC="$CC $fp_cv_prog_cc_stdc" ;;
|
|
esac
|
|
])
|
|
|
|
AC_DEFUN(AC_PROG_LN,
|
|
[AC_MSG_CHECKING(whether ln works)
|
|
AC_CACHE_VAL(ac_cv_prog_LN,
|
|
[rm -f conftestdata conftestlink
|
|
echo > conftestdata
|
|
if ln conftestdata conftestlink 2>/dev/null
|
|
then
|
|
rm -f conftestdata conftestlink
|
|
ac_cv_prog_LN="ln"
|
|
else
|
|
rm -f conftestdata
|
|
ac_cv_prog_LN="cp"
|
|
fi])dnl
|
|
LN="$ac_cv_prog_LN"
|
|
if test "$ac_cv_prog_LN" = "ln"; then
|
|
AC_MSG_RESULT(yes)
|
|
else
|
|
AC_MSG_RESULT(no)
|
|
fi
|
|
AC_SUBST(LN)dnl
|
|
])
|
|
|
|
builtin(include, aczsh.m4)
|