diff options
author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /dviware/dvgtk/ansi2knr.ac |
Initial commit
Diffstat (limited to 'dviware/dvgtk/ansi2knr.ac')
-rw-r--r-- | dviware/dvgtk/ansi2knr.ac | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/dviware/dvgtk/ansi2knr.ac b/dviware/dvgtk/ansi2knr.ac new file mode 100644 index 0000000000..6381c3b3fc --- /dev/null +++ b/dviware/dvgtk/ansi2knr.ac @@ -0,0 +1,78 @@ +# -*- m4 -*- +# Based on aclocal.m4 from wget-1.4.4 by Hrvoje Niksic +AC_DEFUN(AM_C_PROTOTYPES, +[AC_REQUIRE([AM_PROG_CC_STDC]) +AC_BEFORE([$0], [AC_C_INLINE]) +AC_MSG_CHECKING([for function prototypes]) +if test "$am_cv_prog_cc_stdc" != no; then + AC_MSG_RESULT(yes) + AC_DEFINE(PROTOTYPES) + U= ANSI2KNR= +else + AC_MSG_RESULT(no) + U=_ ANSI2KNR=./ansi2knr + # Ensure some checks needed by ansi2knr itself. + AC_HEADER_STDC + AC_CHECK_HEADERS(string.h) +fi +AC_SUBST(U)dnl +AC_SUBST(ANSI2KNR)dnl +]) + + +# serial 1 + +# @defmac AC_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{am_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 + +AC_DEFUN(AM_PROG_CC_STDC, +[AC_REQUIRE([AC_PROG_CC]) +AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C) +AC_CACHE_VAL(am_cv_prog_cc_stdc, +[am_cv_prog_cc_stdc=no +ac_save_CC="$CC" +# Don't try gcc -ansi; that turns off useful extensions and +# breaks some systems' header files. +# HP-UX -Aa -D_HPUX_SOURCE +# AIX -qlanglvl=ansi +# Ultrix and OSF/1 -std1 +# SVR4 -Xc -D__EXTENSIONS__ +for ac_arg in "" "-Aa -D_HPUX_SOURCE" -qlanglvl=ansi -std1 "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + AC_TRY_COMPILE( +[#if !defined(__STDC__) || __STDC__ != 1 +choke me +#endif +/* DYNIX/ptx V4.1.3 can't compile sys/stat.h with -Xc -D__EXTENSIONS__. */ +#ifdef _SEQUENT_ +# include <sys/types.h> +# include <sys/stat.h> +#endif +], [ +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);};], +[am_cv_prog_cc_stdc="$ac_arg"; break]) +done +CC="$ac_save_CC" +]) +AC_MSG_RESULT($am_cv_prog_cc_stdc) +case "x$am_cv_prog_cc_stdc" in + x|xno) ;; + *) CC="$CC $am_cv_prog_cc_stdc" ;; +esac +]) |