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comparison src/auto/configure @ 13674:1feeefd8cddb v8.0.1709

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patch 8.0.1709: some non-C89 code may slip through commit https://github.com/vim/vim/commit/2e324950b83fcdf60843b54a6a339183370f338a Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 14 14:37:07 2018 +0200 patch 8.0.1709: some non-C89 code may slip through Problem: Some non-C89 code may slip through. Solution: Enforce C89 in configure. Fix detected problems. (James McCoy, closes #2735)
author Christian Brabandt <cb@256bit.org>
date Sat, 14 Apr 2018 14:45:06 +0200
parents bc28260e2a2e
children 6b49b6ea9e43
comparison
equal deleted inserted replaced
13673:24336952ffcf 13674:1feeefd8cddb
3447 ac_ext=c 3447 ac_ext=c
3448 ac_cpp='$CPP $CPPFLAGS' 3448 ac_cpp='$CPP $CPPFLAGS'
3449 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' 3449 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
3450 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' 3450 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
3451 ac_compiler_gnu=$ac_cv_c_compiler_gnu 3451 ac_compiler_gnu=$ac_cv_c_compiler_gnu
3452
3453 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
3454 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
3455 if ${ac_cv_prog_cc_c89+:} false; then :
3456 $as_echo_n "(cached) " >&6
3457 else
3458 ac_cv_prog_cc_c89=no
3459 ac_save_CC=$CC
3460 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
3461 /* end confdefs.h. */
3462 #include <stdarg.h>
3463 #include <stdio.h>
3464 struct stat;
3465 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
3466 struct buf { int x; };
3467 FILE * (*rcsopen) (struct buf *, struct stat *, int);
3468 static char *e (p, i)
3469 char **p;
3470 int i;
3471 {
3472 return p[i];
3473 }
3474 static char *f (char * (*g) (char **, int), char **p, ...)
3475 {
3476 char *s;
3477 va_list v;
3478 va_start (v,p);
3479 s = g (p, va_arg (v,int));
3480 va_end (v);
3481 return s;
3482 }
3483
3484 /* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
3485 function prototypes and stuff, but not '\xHH' hex character constants.
3486 These don't provoke an error unfortunately, instead are silently treated
3487 as 'x'. The following induces an error, until -std is added to get
3488 proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
3489 array size at least. It's necessary to write '\x00'==0 to get something
3490 that's true only with -std. */
3491 int osf4_cc_array ['\x00' == 0 ? 1 : -1];
3492
3493 /* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
3494 inside strings and character constants. */
3495 #define FOO(x) 'x'
3496 int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
3497
3498 int test (int i, double x);
3499 struct s1 {int (*f) (int a);};
3500 struct s2 {int (*f) (double a);};
3501 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
3502 int argc;
3503 char **argv;
3504 int
3505 main ()
3506 {
3507 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
3508 ;
3509 return 0;
3510 }
3511 _ACEOF
3512 for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
3513 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
3514 do
3515 CC="$ac_save_CC $ac_arg"
3516 if ac_fn_c_try_compile "$LINENO"; then :
3517 ac_cv_prog_cc_c89=$ac_arg
3518 fi
3519 rm -f core conftest.err conftest.$ac_objext
3520 test "x$ac_cv_prog_cc_c89" != "xno" && break
3521 done
3522 rm -f conftest.$ac_ext
3523 CC=$ac_save_CC
3524
3525 fi
3526 # AC_CACHE_VAL
3527 case "x$ac_cv_prog_cc_c89" in
3528 x)
3529 { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
3530 $as_echo "none needed" >&6; } ;;
3531 xno)
3532 { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
3533 $as_echo "unsupported" >&6; } ;;
3534 *)
3535 CC="$CC $ac_cv_prog_cc_c89"
3536 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
3537 $as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
3538 esac
3539 if test "x$ac_cv_prog_cc_c89" != xno; then :
3540
3541 fi
3542
3452 ac_ext=c 3543 ac_ext=c
3453 ac_cpp='$CPP $CPPFLAGS' 3544 ac_cpp='$CPP $CPPFLAGS'
3454 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' 3545 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
3455 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' 3546 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
3456 ac_compiler_gnu=$ac_cv_c_compiler_gnu 3547 ac_compiler_gnu=$ac_cv_c_compiler_gnu
4113 if test "$gccversion" = "3.1" -o "$gccversion" = "3.2" -o "$gccversion" = "3.2.1" && `echo "$CFLAGS" | grep -v fno-strength-reduce >/dev/null`; then 4204 if test "$gccversion" = "3.1" -o "$gccversion" = "3.2" -o "$gccversion" = "3.2.1" && `echo "$CFLAGS" | grep -v fno-strength-reduce >/dev/null`; then
4114 echo 'GCC 3.1 and 3.2 have a bug in the optimizer, adding "-fno-strength-reduce"' 4205 echo 'GCC 3.1 and 3.2 have a bug in the optimizer, adding "-fno-strength-reduce"'
4115 CFLAGS="$CFLAGS -fno-strength-reduce" 4206 CFLAGS="$CFLAGS -fno-strength-reduce"
4116 fi 4207 fi
4117 fi 4208 fi
4209
4210 CPPFLAGS="$CPPFLAGS -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700"
4118 fi 4211 fi
4119 4212
4120 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clang version" >&5 4213 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clang version" >&5
4121 $as_echo_n "checking for clang version... " >&6; } 4214 $as_echo_n "checking for clang version... " >&6; }
4122 CLANG_VERSION_STRING=`$CC --version 2>/dev/null | sed -n -e 's/^.*clang[^0-9]*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/p'` 4215 CLANG_VERSION_STRING=`$CC --version 2>/dev/null | sed -n -e 's/^.*clang[^0-9]*\([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*$/\1/p'`
4185 $as_echo_n "checking for Darwin (Mac OS X)... " >&6; } 4278 $as_echo_n "checking for Darwin (Mac OS X)... " >&6; }
4186 if test "`(uname) 2>/dev/null`" = Darwin; then 4279 if test "`(uname) 2>/dev/null`" = Darwin; then
4187 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 4280 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
4188 $as_echo "yes" >&6; } 4281 $as_echo "yes" >&6; }
4189 MACOS_X=yes 4282 MACOS_X=yes
4190 CPPFLAGS="$CPPFLAGS -DMACOS_X" 4283 CPPFLAGS="$CPPFLAGS -D_DARWIN_C_SOURCE -DMACOS_X"
4191 4284
4192 { $as_echo "$as_me:${as_lineno-$LINENO}: checking --disable-darwin argument" >&5 4285 { $as_echo "$as_me:${as_lineno-$LINENO}: checking --disable-darwin argument" >&5
4193 $as_echo_n "checking --disable-darwin argument... " >&6; } 4286 $as_echo_n "checking --disable-darwin argument... " >&6; }
4194 # Check whether --enable-darwin was given. 4287 # Check whether --enable-darwin was given.
4195 if test "${enable_darwin+set}" = set; then : 4288 if test "${enable_darwin+set}" = set; then :
14339 # IBM z/OS reset CFLAGS for config.mk 14432 # IBM z/OS reset CFLAGS for config.mk
14340 if test "$zOSUnix" = "yes"; then 14433 if test "$zOSUnix" = "yes"; then
14341 CFLAGS="-D_ALL_SOURCE -Wc,float\(ieee\),dll" 14434 CFLAGS="-D_ALL_SOURCE -Wc,float\(ieee\),dll"
14342 fi 14435 fi
14343 14436
14437 if test "$GCC" = yes -a "$GUITYPE" != "GTK"; then
14438 CFLAGS="$CFLAGS -ansi"
14439 fi
14440
14344 ac_config_files="$ac_config_files auto/config.mk:config.mk.in" 14441 ac_config_files="$ac_config_files auto/config.mk:config.mk.in"
14345 14442
14346 cat >confcache <<\_ACEOF 14443 cat >confcache <<\_ACEOF
14347 # This file is a shell script that caches the results of configure 14444 # This file is a shell script that caches the results of configure
14348 # tests run on this system so they can be shared between configure 14445 # tests run on this system so they can be shared between configure