| 1 | # Local additions to Autoconf macros. |
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| 2 | # Copyright (C) 1992, 1994 Free Software Foundation, Inc. |
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| 3 | # Francois Pinard <pinard@iro.umontreal.ca>, 1992. |
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| 4 | |
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| 5 | # @defmac AC_PROG_CC_STDC |
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| 6 | # @maindex PROG_CC_STDC |
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| 7 | # @ovindex CC |
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| 8 | # If the C compiler in not in ANSI C mode by default, try to add an option |
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| 9 | # to output variable @code{CC} to make it so. This macro tries various |
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| 10 | # options that select ANSI C on some system or another. It considers the |
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| 11 | # compiler to be in ANSI C mode if it defines @code{__STDC__} to 1 and |
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| 12 | # handles function prototypes correctly. |
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| 13 | # |
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| 14 | # If you use this macro, you should check after calling it whether the C |
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| 15 | # compiler has been set to accept ANSI C; if not, the shell variable |
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| 16 | # @code{ac_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source |
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| 17 | # code in ANSI C, you can make an un-ANSIfied copy of it by using the |
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| 18 | # program @code{ansi2knr}, which comes with Ghostscript. |
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| 19 | # @end defmac |
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| 20 | |
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| 21 | define(fp_PROG_CC_STDC, |
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| 22 | [AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C) |
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| 23 | AC_CACHE_VAL(ac_cv_prog_cc_stdc, |
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| 24 | [ac_cv_prog_cc_stdc=no |
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| 25 | ac_save_CFLAGS="$CFLAGS" |
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| 26 | # Don't try gcc -ansi; that turns off useful extensions and |
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| 27 | # breaks some systems' header files. |
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| 28 | # AIX -qlanglvl=ansi |
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| 29 | # Ultrix and OSF/1 -std1 |
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| 30 | # HP-UX -Aa -D_HPUX_SOURCE |
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| 31 | # SVR4 -Xc |
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| 32 | for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" -Xc |
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| 33 | do |
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| 34 | CFLAGS="$ac_save_CFLAGS $ac_arg" |
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| 35 | AC_TRY_COMPILE( |
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| 36 | [#if !defined(__STDC__) || __STDC__ != 1 |
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| 37 | choke me |
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| 38 | #endif |
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| 39 | ], [int test (int i, double x); |
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| 40 | struct s1 {int (*f) (int a);}; |
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| 41 | struct s2 {int (*f) (double a);};], |
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| 42 | [ac_cv_prog_cc_stdc="$ac_arg"; break]) |
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| 43 | done |
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| 44 | CFLAGS="$ac_save_CFLAGS" |
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| 45 | ]) |
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| 46 | AC_MSG_RESULT($ac_cv_prog_cc_stdc) |
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| 47 | case "x$ac_cv_prog_cc_stdc" in |
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| 48 | x|xno) ;; |
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| 49 | *) CC="$CC $ac_cv_prog_cc_stdc" ;; |
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| 50 | esac |
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| 51 | ]) |
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| 52 | |
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| 53 | # Check for function prototypes. |
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| 54 | |
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| 55 | AC_DEFUN(fp_C_PROTOTYPES, |
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| 56 | [AC_REQUIRE([fp_PROG_CC_STDC]) |
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| 57 | AC_MSG_CHECKING([for function prototypes]) |
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| 58 | if test "$ac_cv_prog_cc_stdc" != no; then |
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| 59 | AC_MSG_RESULT(yes) |
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| 60 | AC_DEFINE(PROTOTYPES) |
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| 61 | U= ANSI2KNR= |
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| 62 | else |
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| 63 | AC_MSG_RESULT(no) |
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| 64 | U=_ ANSI2KNR=ansi2knr |
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| 65 | fi |
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| 66 | AC_SUBST(U)dnl |
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| 67 | AC_SUBST(ANSI2KNR)dnl |
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| 68 | ]) |
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| 69 | |
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| 70 | # Check if --with-dmalloc was given. |
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| 71 | |
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| 72 | AC_DEFUN(fp_WITH_DMALLOC, |
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| 73 | [AC_MSG_CHECKING(if malloc debugging is wanted) |
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| 74 | AC_ARG_WITH(dmalloc, |
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| 75 | [ --with-dmalloc use dmalloc, as in dmalloc.tar.gz from |
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| 76 | @/ftp.antaire.com:antaire/src/dmalloc.], |
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| 77 | [if test "$withval" = yes; then |
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| 78 | AC_MSG_RESULT(yes) |
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| 79 | AC_DEFINE(WITH_DMALLOC) |
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| 80 | LIBS="$LIBS -ldmalloc" |
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| 81 | LDFLAGS="$LDFLAGS -g" |
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| 82 | else |
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| 83 | AC_MSG_RESULT(no) |
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| 84 | fi], [AC_MSG_RESULT(no)])]) |
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| 85 | |
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