X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=Ada95%2Faclocal.m4;h=225dc220881f97a8ccc52d0635eb0439ff3a9be8;hp=e4ce3771a0a64fccd13d707339a235f3cf836357;hb=5c90fc94a5ac426a5e51732720767d5f0041830d;hpb=3e37c7d3fa122563a9d88168926f61286ef30cd3 diff --git a/Ada95/aclocal.m4 b/Ada95/aclocal.m4 index e4ce3771..225dc220 100644 --- a/Ada95/aclocal.m4 +++ b/Ada95/aclocal.m4 @@ -29,7 +29,7 @@ dnl*************************************************************************** dnl dnl Author: Thomas E. Dickey dnl -dnl $Id: aclocal.m4,v 1.156 2020/05/23 23:39:36 tom Exp $ +dnl $Id: aclocal.m4,v 1.162 2020/09/26 23:08:42 tom Exp $ dnl Macros used in NCURSES Ada95 auto-configuration script. dnl dnl These macros are maintained separately from NCURSES. The copyright on @@ -356,6 +356,12 @@ dnl Allow user to disable a normally-on option. AC_DEFUN([CF_ARG_DISABLE], [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl dnl --------------------------------------------------------------------------- +dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31 +dnl ------------- +dnl Allow user to enable a normally-off option. +AC_DEFUN([CF_ARG_ENABLE], +[CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl +dnl --------------------------------------------------------------------------- dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14 dnl ------------- dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus @@ -713,7 +719,7 @@ case $cf_cv_gnat_version in esac ]) dnl --------------------------------------------------------------------------- -dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35 +dnl CF_CLANG_COMPILER version: 3 updated: 2020/08/28 04:10:22 dnl ----------------- dnl Check if the given compiler is really clang. clang's C driver defines dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does @@ -744,6 +750,10 @@ cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments" ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS" AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2])) fi + +if test "x$CLANG_COMPILER" = "xyes" ; then + CF_APPEND_TEXT(CFLAGS,-Wno-error=implicit-function-declaration) +fi ]) dnl --------------------------------------------------------------------------- dnl CF_CONST_X_STRING version: 4 updated: 2020/03/10 18:53:47 @@ -968,6 +978,36 @@ fi AC_SUBST(BROKEN_LINKER) ])dnl dnl --------------------------------------------------------------------------- +dnl CF_ENABLE_WARNINGS version: 7 updated: 2020/08/29 09:05:21 +dnl ------------------ +dnl Configure-option to enable gcc warnings +dnl +dnl $1 = extra options to add, if supported +dnl $2 = option for checking attributes. By default, this is done when +dnl warnings are enabled. For other values: +dnl yes: always do this, e.g., to use in generated library-headers +dnl no: never do this +AC_DEFUN([CF_ENABLE_WARNINGS],[ +if ( test "$GCC" = yes || test "$GXX" = yes ) +then +CF_FIX_WARNINGS(CFLAGS) +CF_FIX_WARNINGS(CPPFLAGS) +CF_FIX_WARNINGS(LDFLAGS) +AC_MSG_CHECKING(if you want to turn on gcc warnings) +CF_ARG_ENABLE(warnings, + [ --enable-warnings test: turn on gcc compiler warnings], + [with_warnings=yes], + [with_warnings=no]) +AC_MSG_RESULT($with_warnings) +if test "$with_warnings" = "yes" +then + ifelse($2,,[CF_GCC_ATTRIBUTES]) + CF_GCC_WARNINGS($1) +fi +ifelse($2,yes,[CF_GCC_ATTRIBUTES]) +fi +])dnl +dnl --------------------------------------------------------------------------- dnl CF_FIND_LIBRARY version: 9 updated: 2008/03/23 14:48:54 dnl --------------- dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We @@ -1168,14 +1208,48 @@ AC_DEFUN([CF_FIXUP_ADAFLAGS],[ AC_MSG_RESULT($ADAFLAGS) ])dnl dnl --------------------------------------------------------------------------- -dnl CF_GCC_ATTRIBUTES version: 18 updated: 2020/03/10 18:53:47 +dnl CF_FIX_WARNINGS version: 2 updated: 2020/08/28 15:08:28 +dnl --------------- +dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's +dnl "-Werror" flags can interfere with configure-checks. Those go into +dnl EXTRA_CFLAGS. +dnl +dnl $1 = variable name to repair +define([CF_FIX_WARNINGS],[ +if ( test "$GCC" = yes || test "$GXX" = yes ) +then + case [$]$1 in + (*-Werror=*) + CF_VERBOSE(repairing $1: [$]$1) + cf_temp_flags= + for cf_temp_scan in [$]$1 + do + case "x$cf_temp_scan" in + (x-Werror=*) + CF_APPEND_TEXT(EXTRA_CFLAGS,"$cf_temp_scan") + ;; + (*) + CF_APPEND_TEXT(cf_temp_flags,"$cf_temp_scan") + ;; + esac + done + $1="$cf_temp_flags" + CF_VERBOSE(... fixed [$]$1) + CF_VERBOSE(... extra $EXTRA_CFLAGS) + ;; + esac +fi +AC_SUBST(EXTRA_CFLAGS) +])dnl +dnl --------------------------------------------------------------------------- +dnl CF_GCC_ATTRIBUTES version: 19 updated: 2020/08/29 09:05:21 dnl ----------------- dnl Test for availability of useful gcc __attribute__ directives to quiet dnl compiler warnings. Though useful, not all are supported -- and contrary dnl to documentation, unrecognized directives cause older compilers to barf. AC_DEFUN([CF_GCC_ATTRIBUTES], [ -if test "$GCC" = yes +if ( test "$GCC" = yes || test "$GXX" = yes ) then cat > conftest.i <