Due to changes in GCC 14 enabling -Werror=implicit-function-declaration and -Werror=implicit-int by default, without this change, this configure script fails with: configure: error: Can't run the compiler - sorry
AC_USE_SYSTEM_EXTENSIONS is required because pts(4)-related functions ptsname(3), grantpt(3), and unlockpt(3) are not exposed otherwise. Link: https://bugs.gentoo.org/870424 Link: https://bugs.gentoo.org/919256 Signed-off-by: Gabi Falk <gabif...@gmx.com> --- examples/rlfe/configure | 668 ++++++++++++++++++++----------------- examples/rlfe/configure.in | 88 +++-- 2 files changed, 422 insertions(+), 334 deletions(-) diff --git a/examples/rlfe/configure b/examples/rlfe/configure index 3928331..063113d 100755 --- a/examples/rlfe/configure +++ b/examples/rlfe/configure @@ -1490,115 +1490,6 @@ fi } # ac_fn_c_try_link -# ac_fn_c_try_run LINENO -# ---------------------- -# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes -# that executables *can* be run. -ac_fn_c_try_run () -{ - as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack - if { { ac_try="$ac_link" -case "(($ac_try" in - *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; - *) ac_try_echo=$ac_try;; -esac -eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" -$as_echo "$ac_try_echo"; } >&5 - (eval "$ac_link") 2>&5 - ac_status=$? - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; } && { ac_try='./conftest$ac_exeext' - { { case "(($ac_try" in - *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; - *) ac_try_echo=$ac_try;; -esac -eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" -$as_echo "$ac_try_echo"; } >&5 - (eval "$ac_try") 2>&5 - ac_status=$? - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; }; }; then : - ac_retval=0 -else - $as_echo "$as_me: program exited with status $ac_status" >&5 - $as_echo "$as_me: failed program was:" >&5 -sed 's/^/| /' conftest.$ac_ext >&5 - - ac_retval=$ac_status -fi - rm -rf conftest.dSYM conftest_ipa8_conftest.oo - eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno - as_fn_set_status $ac_retval - -} # ac_fn_c_try_run - -# ac_fn_c_check_func LINENO FUNC VAR -# ---------------------------------- -# Tests whether FUNC exists, setting the cache variable VAR accordingly -ac_fn_c_check_func () -{ - as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 -$as_echo_n "checking for $2... " >&6; } -if eval \${$3+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -/* Define $2 to an innocuous variant, in case <limits.h> declares $2. - For example, HP-UX 11i <limits.h> declares gettimeofday. */ -#define $2 innocuous_$2 - -/* System header to define __stub macros and hopefully few prototypes, - which can conflict with char $2 (); below. - Prefer <limits.h> to <assert.h> if __STDC__ is defined, since - <limits.h> exists even on freestanding compilers. */ - -#ifdef __STDC__ -# include <limits.h> -#else -# include <assert.h> -#endif - -#undef $2 - -/* Override any GCC internal prototype to avoid an error. - Use char because int might match the return type of a GCC - builtin and then its argument prototype would still apply. */ -#ifdef __cplusplus -extern "C" -#endif -char $2 (); -/* The GNU C library defines this for functions which it implements - to always fail with ENOSYS. Some functions are actually named - something starting with __ and the normal name is an alias. */ -#if defined __stub_$2 || defined __stub___$2 -choke me -#endif - -int -main () -{ -return $2 (); - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - eval "$3=yes" -else - eval "$3=no" -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext -fi -eval ac_res=\$$3 - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 -$as_echo "$ac_res" >&6; } - eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno - -} # ac_fn_c_check_func - # ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES # ------------------------------------------------------- # Tests whether HEADER exists, giving a warning if it cannot be compiled using @@ -1686,6 +1577,48 @@ fi } # ac_fn_c_check_header_mongrel +# ac_fn_c_try_run LINENO +# ---------------------- +# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes +# that executables *can* be run. +ac_fn_c_try_run () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + if { { ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; } && { ac_try='./conftest$ac_exeext' + { { case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\"" +$as_echo "$ac_try_echo"; } >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; }; then : + ac_retval=0 +else + $as_echo "$as_me: program exited with status $ac_status" >&5 + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_retval=$ac_status +fi + rm -rf conftest.dSYM conftest_ipa8_conftest.oo + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + as_fn_set_status $ac_retval + +} # ac_fn_c_try_run + # ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES # ------------------------------------------------------- # Tests whether HEADER exists and can be compiled using the include files in @@ -1716,6 +1649,73 @@ $as_echo "$ac_res" >&6; } eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno } # ac_fn_c_check_header_compile + +# ac_fn_c_check_func LINENO FUNC VAR +# ---------------------------------- +# Tests whether FUNC exists, setting the cache variable VAR accordingly +ac_fn_c_check_func () +{ + as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5 +$as_echo_n "checking for $2... " >&6; } +if eval \${$3+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +/* Define $2 to an innocuous variant, in case <limits.h> declares $2. + For example, HP-UX 11i <limits.h> declares gettimeofday. */ +#define $2 innocuous_$2 + +/* System header to define __stub macros and hopefully few prototypes, + which can conflict with char $2 (); below. + Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + <limits.h> exists even on freestanding compilers. */ + +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif + +#undef $2 + +/* Override any GCC internal prototype to avoid an error. + Use char because int might match the return type of a GCC + builtin and then its argument prototype would still apply. */ +#ifdef __cplusplus +extern "C" +#endif +char $2 (); +/* The GNU C library defines this for functions which it implements + to always fail with ENOSYS. Some functions are actually named + something starting with __ and the normal name is an alias. */ +#if defined __stub_$2 || defined __stub___$2 +choke me +#endif + +int +main () +{ +return $2 (); + ; + return 0; +} +_ACEOF +if ac_fn_c_try_link "$LINENO"; then : + eval "$3=yes" +else + eval "$3=no" +fi +rm -f core conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +eval ac_res=\$$3 + { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5 +$as_echo "$ac_res" >&6; } + eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno + +} # ac_fn_c_check_func cat >config.log <<_ACEOF This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. @@ -3233,32 +3233,223 @@ if test "$ac_res" != no; then : fi -if test "$cross_compiling" = yes; then : - { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 -$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} -as_fn_error $? "cannot run test program while cross compiling -See \`config.log' for more details" "$LINENO" 5; } +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 +$as_echo_n "checking for ANSI C header files... " >&6; } +if ${ac_cv_header_stdc+:} false; then : + $as_echo_n "(cached) " >&6 else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -main(){exit(0);} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - -else - -if test $CC != cc ; then -echo "Your $CC failed - restarting with CC=cc" 1>&6 +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <float.h> -echo "" 1>&6 +int +main () +{ -CC=cc -export CC -exec $0 $configure_args + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_header_stdc=yes +else + ac_cv_header_stdc=no fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <string.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <stdlib.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then : + +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then : + : +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <ctype.h> +#include <stdlib.h> +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + return 2; + return 0; +} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + ac_cv_header_stdc=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ + conftest.$ac_objext conftest.beam conftest.$ac_ext +fi + +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 +$as_echo "$ac_cv_header_stdc" >&6; } +if test $ac_cv_header_stdc = yes; then + +$as_echo "#define STDC_HEADERS 1" >>confdefs.h + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do : + as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` +ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default +" +if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : + cat >>confdefs.h <<_ACEOF +#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + + + ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default" +if test "x$ac_cv_header_minix_config_h" = xyes; then : + MINIX=yes +else + MINIX= +fi + + + if test "$MINIX" = yes; then + +$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h + + +$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h + + +$as_echo "#define _MINIX 1" >>confdefs.h + + fi + + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5 +$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; } +if ${ac_cv_safe_to_define___extensions__+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +# define __EXTENSIONS__ 1 + $ac_includes_default +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_safe_to_define___extensions__=yes +else + ac_cv_safe_to_define___extensions__=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5 +$as_echo "$ac_cv_safe_to_define___extensions__" >&6; } + test $ac_cv_safe_to_define___extensions__ = yes && + $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h + + $as_echo "#define _ALL_SOURCE 1" >>confdefs.h + + $as_echo "#define _GNU_SOURCE 1" >>confdefs.h + + $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h + + $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h + + + +if test "$cross_compiling" = yes; then : + { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5 +$as_echo "$as_me: error: in \`$ac_pwd':" >&2;} +as_fn_error $? "cannot run test program while cross compiling +See \`config.log' for more details" "$LINENO" 5; } +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int main(){return 0;} +_ACEOF +if ac_fn_c_try_run "$LINENO"; then : + +else + +if test $CC != cc ; then +echo "Your $CC failed - restarting with CC=cc" 1>&6 + +echo "" 1>&6 + +CC=cc +export CC +exec $0 $configure_args +fi + +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ conftest.$ac_objext conftest.beam conftest.$ac_ext fi @@ -3271,7 +3462,7 @@ See \`config.log' for more details" "$LINENO" 5; } else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ -main(){exit(0);} +int main(){return 0;} _ACEOF if ac_fn_c_try_run "$LINENO"; then : @@ -3298,6 +3489,7 @@ else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ +int main() { int __something_strange_(); @@ -3407,7 +3599,7 @@ rm -f conftest* $as_echo "$as_me: checking select..." >&6;} cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +#include <sys/select.h> int main () { @@ -3424,7 +3616,7 @@ else $as_echo "$as_me: checking select with $LIBS..." >&6;} cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +#include <sys/select.h> int main () { @@ -3459,6 +3651,8 @@ else #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> +#include <signal.h> +#include <unistd.h> char *nam = "/tmp/conftest$$"; @@ -3471,7 +3665,7 @@ char *nam = "/tmp/conftest$$"; #define S_IFIFO 0010000 #endif - +int main() { #ifdef FD_SET @@ -3485,7 +3679,7 @@ main() * opening RDWR fifo fails in BSD 4.4, but select return values are * right. */ - exit(0); + return 0; #endif (void)alarm(5); #ifdef POSIX @@ -3493,12 +3687,12 @@ main() #else if (mknod(nam, S_IFIFO|0777, 0)) #endif - exit(1); + return 1; close(0); if (open(nam, O_RDWR | O_NONBLOCK)) - exit(1); + return 1; if (write(0, "TEST", 4) == -1) - exit(1); + return 1; #else @@ -3506,6 +3700,7 @@ main() #include <sys/socket.h> #include <sys/un.h> +int main() { int s1, s2, l; @@ -3518,14 +3713,14 @@ main() (void)alarm(5); if ((s1 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) - exit(1); + return 1; a.sun_family = AF_UNIX; strcpy(a.sun_path, nam); (void) unlink(nam); if (bind(s1, (struct sockaddr *) &a, strlen(nam)+2) == -1) - exit(1); + return 1; if (listen(s1, 2)) - exit(1); + return 1; if (fork() == 0) { if ((s2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) @@ -3533,12 +3728,12 @@ main() (void)connect(s2, (struct sockaddr *)&a, strlen(nam) + 2); if (write(s2, "HELLO", 5) == -1) kill(getppid(), 3); - exit(0); + return 0; } l = sizeof(a); close(0); if (accept(s1, (struct sockaddr *)&a, &l)) - exit(1); + return 1; #endif @@ -3548,10 +3743,10 @@ main() f = 1; #endif if (select(1, &f, 0, 0, 0) == -1) - exit(1); + return 1; if (select(1, &f, &f, 0, 0) != 2) - exit(1); - exit(0); + return 1; + return 0; } _ACEOF @@ -3572,11 +3767,11 @@ fi $as_echo "$as_me: checking for tgetent..." >&6;} cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +extern char tgetent(void); int main () { -tgetent((char *)0, (char *)0); +tgetent(); ; return 0; } @@ -3590,7 +3785,7 @@ LIBS="-lcurses $olibs" $as_echo "$as_me: checking libcurses..." >&6;} cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +extern char tgetent(void); int main () { @@ -3598,7 +3793,7 @@ main () #ifdef __hpux __sorry_hpux_libcurses_is_totally_broken_in_10_10(); #else -tgetent((char *)0, (char *)0); +tgetent(); #endif ; @@ -3613,11 +3808,11 @@ else $as_echo "$as_me: checking libtermcap..." >&6;} cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +extern char tgetent(void); int main () { -tgetent((char *)0, (char *)0); +tgetent(); ; return 0; } @@ -3630,11 +3825,11 @@ else $as_echo "$as_me: checking libtermlib..." >&6;} cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +extern char tgetent(void); int main () { -tgetent((char *)0, (char *)0); +tgetent(); ; return 0; } @@ -3647,11 +3842,11 @@ else $as_echo "$as_me: checking libncurses..." >&6;} cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +extern char tgetent(void); int main () { -tgetent((char *)0, (char *)0); +tgetent(); ; return 0; } @@ -3685,10 +3880,13 @@ else cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ +#include <string.h> extern char *tgoto(); + +int main() { - exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1); + return strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1; } _ACEOF if ac_fn_c_try_run "$LINENO"; then : @@ -3738,7 +3936,7 @@ sysvr4ptys= if test -c /dev/ptmx ; then cat confdefs.h - <<_ACEOF >conftest.$ac_ext /* end confdefs.h. */ - +#include <stdlib.h> int main () { @@ -3898,6 +4096,10 @@ else #include <sys/types.h> #include <sys/stat.h> #include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +int main() { struct stat sb; @@ -3905,22 +4107,22 @@ main() int om, m; FILE *fp; - if (!(x = ttyname(0))) exit(1); - if (stat(x, &sb)) exit(1); + if (!(x = ttyname(0))) return 1; + if (stat(x, &sb)) return 1; om = sb.st_mode; - if (om & 002) exit(0); + if (om & 002) return 0; m = system("mesg y"); - if (m == -1 || m == 127) exit(1); - if (stat(x, &sb)) exit(1); + if (m == -1 || m == 127) return 1; + if (stat(x, &sb)) return 1; m = sb.st_mode; - if (chmod(x, om)) exit(1); - if (m & 002) exit(0); - if (sb.st_gid == getgid()) exit(1); + if (chmod(x, om)) return 1; + if (m & 002) return 0; + if (sb.st_gid == getgid()) return 1; if (!(fp=fopen("conftest_grp", "w"))) - exit(1); + return 1; fprintf(fp, "%d\n", sb.st_gid); fclose(fp); - exit(0); + return 0; } _ACEOF @@ -4166,6 +4368,7 @@ hand() got++; } +int main() { /* on hpux we use sigvec to get bsd signals */ @@ -4174,9 +4377,9 @@ main() kill(getpid(), SIGCLD); kill(getpid(), SIGCLD); if (got < 2) - exit(1); + return 1; #endif - exit(0); + return 0; } _ACEOF @@ -4193,135 +4396,6 @@ fi fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5 -$as_echo_n "checking for ANSI C header files... " >&6; } -if ${ac_cv_header_stdc+:} false; then : - $as_echo_n "(cached) " >&6 -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <stdlib.h> -#include <stdarg.h> -#include <string.h> -#include <float.h> - -int -main () -{ - - ; - return 0; -} -_ACEOF -if ac_fn_c_try_compile "$LINENO"; then : - ac_cv_header_stdc=yes -else - ac_cv_header_stdc=no -fi -rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext - -if test $ac_cv_header_stdc = yes; then - # SunOS 4.x string.h does not declare mem*, contrary to ANSI. - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <string.h> - -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "memchr" >/dev/null 2>&1; then : - -else - ac_cv_header_stdc=no -fi -rm -f conftest* - -fi - -if test $ac_cv_header_stdc = yes; then - # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <stdlib.h> - -_ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "free" >/dev/null 2>&1; then : - -else - ac_cv_header_stdc=no -fi -rm -f conftest* - -fi - -if test $ac_cv_header_stdc = yes; then - # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. - if test "$cross_compiling" = yes; then : - : -else - cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ -#include <ctype.h> -#include <stdlib.h> -#if ((' ' & 0x0FF) == 0x020) -# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') -# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) -#else -# define ISLOWER(c) \ - (('a' <= (c) && (c) <= 'i') \ - || ('j' <= (c) && (c) <= 'r') \ - || ('s' <= (c) && (c) <= 'z')) -# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) -#endif - -#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) -int -main () -{ - int i; - for (i = 0; i < 256; i++) - if (XOR (islower (i), ISLOWER (i)) - || toupper (i) != TOUPPER (i)) - return 2; - return 0; -} -_ACEOF -if ac_fn_c_try_run "$LINENO"; then : - -else - ac_cv_header_stdc=no -fi -rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \ - conftest.$ac_objext conftest.beam conftest.$ac_ext -fi - -fi -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5 -$as_echo "$ac_cv_header_stdc" >&6; } -if test $ac_cv_header_stdc = yes; then - -$as_echo "#define STDC_HEADERS 1" >>confdefs.h - -fi - -# On IRIX 5.3, sys/types and inttypes.h are conflicting. -for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ - inttypes.h stdint.h unistd.h -do : - as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` -ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default -" -if eval test \"x\$"$as_ac_Header"\" = x"yes"; then : - cat >>confdefs.h <<_ACEOF -#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1 -_ACEOF - -fi - -done - - for ac_header in sys/stropts.h sys/wait.h sgtty.h sys/select.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` diff --git a/examples/rlfe/configure.in b/examples/rlfe/configure.in index ad7ce65..aba06c6 100644 --- a/examples/rlfe/configure.in +++ b/examples/rlfe/configure.in @@ -30,7 +30,9 @@ AC_PROG_CPP AC_PROG_GCC_TRADITIONAL AC_ISC_POSIX -AC_TRY_RUN(main(){exit(0);},,[ +AC_USE_SYSTEM_EXTENSIONS + +AC_TRY_RUN([int main(){return 0;}],,[ if test $CC != cc ; then AC_NOTE(Your $CC failed - restarting with CC=cc) AC_NOTE() @@ -40,7 +42,7 @@ exec $0 $configure_args fi ]) -AC_TRY_RUN(main(){exit(0);},, +AC_TRY_RUN([int main(){return 0;}],, exec 5>&2 eval $ac_link AC_NOTE(CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;) @@ -48,6 +50,7 @@ AC_NOTE($ac_compile) AC_MSG_ERROR(Can't run the compiler - sorry)) AC_TRY_RUN([ +int main() { int __something_strange_(); @@ -84,10 +87,10 @@ dnl **** select() **** dnl AC_CHECKING(select) -AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],, +AC_TRY_LINK([#include <sys/select.h>],[select(0, 0, 0, 0, 0);],, LIBS="$LIBS -lnet -lnsl" AC_CHECKING(select with $LIBS) -AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],, +AC_TRY_LINK([#include <sys/select.h>],[select(0, 0, 0, 0, 0);],, AC_MSG_ERROR(!!! no select - no screen)) ) dnl @@ -99,6 +102,8 @@ AC_TRY_RUN([ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> +#include <signal.h> +#include <unistd.h> char *nam = "/tmp/conftest$$"; @@ -111,7 +116,7 @@ char *nam = "/tmp/conftest$$"; #define S_IFIFO 0010000 #endif - +int main() { #ifdef FD_SET @@ -125,7 +130,7 @@ main() * opening RDWR fifo fails in BSD 4.4, but select return values are * right. */ - exit(0); + return 0; #endif (void)alarm(5); #ifdef POSIX @@ -133,12 +138,12 @@ main() #else if (mknod(nam, S_IFIFO|0777, 0)) #endif - exit(1); + return 1; close(0); if (open(nam, O_RDWR | O_NONBLOCK)) - exit(1); + return 1; if (write(0, "TEST", 4) == -1) - exit(1); + return 1; #else @@ -146,6 +151,7 @@ main() #include <sys/socket.h> #include <sys/un.h> +int main() { int s1, s2, l; @@ -158,14 +164,14 @@ main() (void)alarm(5); if ((s1 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) - exit(1); + return 1; a.sun_family = AF_UNIX; strcpy(a.sun_path, nam); (void) unlink(nam); if (bind(s1, (struct sockaddr *) &a, strlen(nam)+2) == -1) - exit(1); + return 1; if (listen(s1, 2)) - exit(1); + return 1; if (fork() == 0) { if ((s2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) @@ -173,12 +179,12 @@ main() (void)connect(s2, (struct sockaddr *)&a, strlen(nam) + 2); if (write(s2, "HELLO", 5) == -1) kill(getppid(), 3); - exit(0); + return 0; } l = sizeof(a); close(0); if (accept(s1, (struct sockaddr *)&a, &l)) - exit(1); + return 1; #endif @@ -188,10 +194,10 @@ main() f = 1; #endif if (select(1, &f, 0, 0, 0) == -1) - exit(1); + return 1; if (select(1, &f, &f, 0, 0) != 2) - exit(1); - exit(0); + return 1; + return 0; } ],AC_NOTE(- select is ok), AC_NOTE(- select can't count) AC_DEFINE(SELECT_BROKEN)) @@ -200,33 +206,36 @@ dnl dnl **** termcap or terminfo **** dnl AC_CHECKING(for tgetent) -AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, +AC_TRY_LINK([extern char tgetent(void);],tgetent();,, olibs="$LIBS" LIBS="-lcurses $olibs" AC_CHECKING(libcurses) -AC_TRY_LINK(,[ +AC_TRY_LINK([extern char tgetent(void);],[ #ifdef __hpux __sorry_hpux_libcurses_is_totally_broken_in_10_10(); #else -tgetent((char *)0, (char *)0); +tgetent(); #endif ],, LIBS="-ltermcap $olibs" AC_CHECKING(libtermcap) -AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, +AC_TRY_LINK([extern char tgetent(void);],tgetent();,, LIBS="-ltermlib $olibs" AC_CHECKING(libtermlib) -AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, +AC_TRY_LINK([extern char tgetent(void);],tgetent();,, LIBS="-lncurses $olibs" AC_CHECKING(libncurses) -AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, +AC_TRY_LINK([extern char tgetent(void);],tgetent();,, AC_MSG_ERROR(!!! no tgetent - no screen)))))) AC_TRY_RUN([ +#include <string.h> extern char *tgoto(); + +int main() { - exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1); + return strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1; }], AC_NOTE(- you use the termcap database), AC_NOTE(- you use the terminfo database) AC_DEFINE(TERMINFO)) AC_CHECKING(ospeed) @@ -243,7 +252,7 @@ fi AC_CHECKING(for SVR4 ptys) sysvr4ptys= if test -c /dev/ptmx ; then -AC_TRY_LINK([],[ptsname(0);grantpt(0);unlockpt(0);],[AC_DEFINE(HAVE_SVR4_PTYS) +AC_TRY_LINK([#include <stdlib.h>],[ptsname(0);grantpt(0);unlockpt(0);],[AC_DEFINE(HAVE_SVR4_PTYS) sysvr4ptys=1]) fi @@ -296,6 +305,10 @@ AC_TRY_RUN([ #include <sys/types.h> #include <sys/stat.h> #include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +int main() { struct stat sb; @@ -303,22 +316,22 @@ main() int om, m; FILE *fp; - if (!(x = ttyname(0))) exit(1); - if (stat(x, &sb)) exit(1); + if (!(x = ttyname(0))) return 1; + if (stat(x, &sb)) return 1; om = sb.st_mode; - if (om & 002) exit(0); + if (om & 002) return 0; m = system("mesg y"); - if (m == -1 || m == 127) exit(1); - if (stat(x, &sb)) exit(1); + if (m == -1 || m == 127) return 1; + if (stat(x, &sb)) return 1; m = sb.st_mode; - if (chmod(x, om)) exit(1); - if (m & 002) exit(0); - if (sb.st_gid == getgid()) exit(1); + if (chmod(x, om)) return 1; + if (m & 002) return 0; + if (sb.st_gid == getgid()) return 1; if (!(fp=fopen("conftest_grp", "w"))) - exit(1); + return 1; fprintf(fp, "%d\n", sb.st_gid); fclose(fp); - exit(0); + return 0; } ],[ if test -f conftest_grp; then @@ -420,6 +433,7 @@ hand() got++; } +int main() { /* on hpux we use sigvec to get bsd signals */ @@ -428,9 +442,9 @@ main() kill(getpid(), SIGCLD); kill(getpid(), SIGCLD); if (got < 2) - exit(1); + return 1; #endif - exit(0); + return 0; } ],,AC_DEFINE(SYSVSIGS)) -- gabi
