#!/bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated automatically using autoconf. # Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. # Usage: configure [--srcdir=DIR] [--host=HOST] [--gas] [--nfp] # [--prefix=PREFIX] [--exec-prefix=PREFIX] [--with-PACKAGE[=VALUE]] # Ignores all args except --srcdir, --prefix, --exec-prefix, and # --with-PACKAGE[=VALUE] unless this script has special code to handle it. for arg do # Handle --exec-prefix with a space before the argument. if test x$next_exec_prefix = xyes; then exec_prefix=$arg; next_exec_prefix= # Handle --host with a space before the argument. elif test x$next_host = xyes; then next_host= # Handle --prefix with a space before the argument. elif test x$next_prefix = xyes; then prefix=$arg; next_prefix= # Handle --srcdir with a space before the argument. elif test x$next_srcdir = xyes; then srcdir=$arg; next_srcdir= else case $arg in # For backward compatibility, recognize -exec-prefix and --exec_prefix. -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* | --exec=* | --exe=* | --ex=* | --e=*) exec_prefix=`echo $arg | sed 's/[-a-z_]*=//'` ;; -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- | --exec | --exe | --ex | --e) next_exec_prefix=yes ;; -gas | --gas | --ga | --g) ;; -host=* | --host=* | --hos=* | --ho=* | --h=*) ;; -host | --host | --hos | --ho | --h) next_host=yes ;; -nfp | --nfp | --nf) ;; -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*) prefix=`echo $arg | sed 's/[-a-z_]*=//'` ;; -prefix | --prefix | --prefi | --pref | --pre | --pr | --p) next_prefix=yes ;; -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=* | --s=*) srcdir=`echo $arg | sed 's/[-a-z_]*=//'` ;; -srcdir | --srcdir | --srcdi | --srcd | --src | --sr | --s) next_srcdir=yes ;; -with-* | --with-*) package=`echo $arg|sed -e 's/-*with-//' -e 's/=.*//'` # Reject names that aren't valid shell variable names. if test -n "`echo $package| sed 's/[-a-zA-Z0-9_]//g'`"; then echo "configure: $package: invalid package name" >&2; exit 1 fi package=`echo $package| sed 's/-/_/g'` case "$arg" in *=*) val="`echo $arg|sed 's/[^=]*=//'`" ;; *) val=1 ;; esac eval "with_$package='$val'" ;; -v | -verbose | --verbose | --verbos | --verbo | --verb | --ver | --ve | --v) verbose=yes ;; *) ;; esac fi done trap 'rm -fr conftest* confdefs* core; exit 1' 1 3 15 trap 'rm -f confdefs*' 0 # NLS nuisances. # These must not be set unconditionally because not all systems understand # e.g. LANG=C (notably SCO). if test "${LC_ALL+set}" = 'set' ; then LC_ALL=C; export LC_ALL; fi if test "${LANG+set}" = 'set' ; then LANG=C; export LANG; fi rm -f conftest* confdefs.h # AIX cpp loses on an empty file, so make sure it contains at least a newline. echo > confdefs.h compile='${CC-cc} $CFLAGS conftest.c -o conftest $LIBS >/dev/null 2>&1' # A filename unique to this package, relative to the directory that # configure is in, which we can look for to find out if srcdir is correct. unique_file=groff/groff.cc # Find the source files, if location was not specified. if test -z "$srcdir"; then srcdirdefaulted=yes # Try the directory containing this script, then `..'. prog=$0 confdir=`echo $prog|sed 's%/[^/][^/]*$%%'` test "X$confdir" = "X$prog" && confdir=. srcdir=$confdir if test ! -r $srcdir/$unique_file; then srcdir=.. fi fi if test ! -r $srcdir/$unique_file; then if test x$srcdirdefaulted = xyes; then echo "configure: Can not find sources in \`${confdir}' or \`..'." 1>&2 else echo "configure: Can not find sources in \`${srcdir}'." 1>&2 fi exit 1 fi # Preserve a srcdir of `.' to avoid automounter screwups with pwd. # But we can't avoid them for `..', to make subdirectories work. case $srcdir in .|/*|~*) ;; *) srcdir=`cd $srcdir; pwd` ;; # Make relative path absolute. esac # Save the original args to write them into config.status later. configure_args="$*" if test -z "$prefix" then echo checking for grops to derive installation directory prefix IFS="${IFS= }"; saveifs="$IFS"; IFS="$IFS:" for dir in $PATH; do test -z "$dir" && dir=. if test $dir != . && test -f $dir/grops; then # Not all systems have dirname. prefix=`echo $dir|sed 's%/[^/][^/]*$%%'` break fi done IFS="$saveifs" echo " chose installation directory prefix ${prefix}" fi if test -z "$prefix" then echo checking for gcc to derive installation directory prefix IFS="${IFS= }"; saveifs="$IFS"; IFS="$IFS:" for dir in $PATH; do test -z "$dir" && dir=. if test $dir != . && test -f $dir/gcc; then # Not all systems have dirname. prefix=`echo $dir|sed 's%/[^/][^/]*$%%'` break fi done IFS="$saveifs" echo " chose installation directory prefix ${prefix}" fi if test -z "$CC"; then # Extract the first word of `gcc', so it can be a program name with args. set dummy gcc; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then CC="gcc" break fi done IFS="$saveifs" fi test -z "$CC" && CC="cc" test -n "$CC" && test -n "$verbose" && echo " setting CC to $CC" # Find out if we are using GNU C, under whatever name. cat > conftest.c < conftest.out 2>&1 if egrep yes conftest.out >/dev/null 2>&1; then GCC=1 # For later tests. fi rm -f conftest* cc_compile='$CCC conftest.cc -o conftest $CCLIBS $LIBS >/dev/null 2>&1' if test -z "$CCC"; then # See whether the C compiler is also a C++ compiler. echo checking if C compiler is also a C++ compiler cat < conftest.cc #ifdef __cplusplus yes #endif EOF $CC -E conftest.cc >conftest.out 2>&1 if egrep yes conftest.out >/dev/null 2>&1; then CCC="$CC" fi fi if test -z "$CCC"; then # Extract the first word of `g++', so it can be a program name with args. set dummy g++; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then CCC="g++" break fi done IFS="$saveifs" fi test -n "$CCC" && test -n "$verbose" && echo " setting CCC to $CCC" if test -z "$CCC"; then # Extract the first word of `CC', so it can be a program name with args. set dummy CC; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then CCC="CC" break fi done IFS="$saveifs" fi test -n "$CCC" && test -n "$verbose" && echo " setting CCC to $CCC" if test -z "$CCC"; then # Extract the first word of `cc++', so it can be a program name with args. set dummy cc++; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then CCC="cc++" break fi done IFS="$saveifs" fi test -n "$CCC" && test -n "$verbose" && echo " setting CCC to $CCC" if test -z "$CCC"; then cat < conftest.cc int main() { return 0; } EOF rm -f conftest eval $cc_compile if test -s conftest && (./conftest) 2>/dev/null; then : else cat < conftest.cc extern "C" { void _exit(int); } int i; struct A { char dummy; A() { i = 1; } ~A() { if (i == 1) _exit(0); } }; A a; int main() { return 1; } EOF rm -f conftest eval $cc_compile if test -s conftest && (./conftest) 2>/dev/null; then : else cat <conftest.cc #include int main() { return 0; } void t() { fopen(0, 0); } EOF if eval $cc_compile; then : else cat <<\EOF Your header files do not appear to support C++. I was unable to compile and link a simple C++ program that used a function declared in . If you're using a version of gcc/g++ earlier than 2.5, you should install libg++. EOF rm -f conftest* core; exit 1 fi rm -f conftest* if test -z "$PSPRINT" then for p in lpr do if test -z "$LPR"; then # Extract the first word of `$p', so it can be a program name with args. set dummy $p; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then LPR="$p" break fi done IFS="$saveifs" fi test -n "$LPR" && test -n "$verbose" && echo " setting LPR to $LPR" test -n "$LPR" && break done for p in lp do if test -z "$LP"; then # Extract the first word of `$p', so it can be a program name with args. set dummy $p; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then LP="$p" break fi done IFS="$saveifs" fi test -n "$LP" && test -n "$verbose" && echo " setting LP to $LP" test -n "$LP" && break done if test -n "$LPR" && test -n "$LP" then # HP-UX provides an lpr command that emulates lpr using lp, # but it doesn't have lpq; in this case we want to use lp # rather than lpr. for p in lpq do if test -z "$LPQ"; then # Extract the first word of `$p', so it can be a program name with args. set dummy $p; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then LPQ="$p" break fi done IFS="$saveifs" fi test -n "$LPQ" && test -n "$verbose" && echo " setting LPQ to $LPQ" test -n "$LPQ" && break done test -n "$LPQ" || LPR= fi if test -n "$LPR" then PSPRINT="$LPR" elif test -n "$LP" then PSPRINT="$LP" fi fi # Figure out DVIPRINT from PSPRINT. if test -n "$PSPRINT" && test -z "$DVIPRINT" then if test "X$PSPRINT" = "Xlpr" then DVIPRINT="lpr -d" else DVIPRINT="$PSPRINT" fi fi echo checking for perl PERLPATH= saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/perl; then PERLPATH="$dir/perl" break fi done IFS="$saveifs" if test -z "$YACC"; then # Extract the first word of `byacc', so it can be a program name with args. set dummy byacc; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then YACC="byacc" break fi done IFS="$saveifs" fi test -n "$YACC" && test -n "$verbose" && echo " setting YACC to $YACC" if test -z "$YACC"; then # Extract the first word of `bison', so it can be a program name with args. set dummy bison; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then YACC="bison -y" break fi done IFS="$saveifs" fi test -z "$YACC" && YACC="yacc" test -n "$YACC" && test -n "$verbose" && echo " setting YACC to $YACC" if test -z "$RANLIB"; then # Extract the first word of `ranlib', so it can be a program name with args. set dummy ranlib; word=$2 echo checking for $word IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. if test -f $dir/$word; then RANLIB="ranlib" break fi done IFS="$saveifs" fi test -z "$RANLIB" && RANLIB=":" test -n "$RANLIB" && test -n "$verbose" && echo " setting RANLIB to $RANLIB" # Make sure to not get the incompatible SysV /etc/install and # /usr/sbin/install, which might be in PATH before a BSD-like install, # or the SunOS /usr/etc/install directory, or the AIX /bin/install, # or the AFS install, which mishandles nonexistent args, or # /usr/ucb/install on SVR4, which tries to use the nonexistent group # `staff'. On most BSDish systems install is in /usr/bin, not /usr/ucb # anyway. Sigh. if test "z${INSTALL}" = "z" ; then echo checking for install IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:" for dir in $PATH; do test -z "$dir" && dir=. case $dir in /etc|/usr/sbin|/usr/etc|/usr/afsws/bin|/usr/ucb) ;; *) if test -f $dir/installbsd; then INSTALL="$dir/installbsd -c" # OSF1 INSTALL_PROGRAM='$(INSTALL)' INSTALL_DATA='$(INSTALL) -m 644' break fi if test -f $dir/install; then if grep dspmsg $dir/install >/dev/null 2>&1; then : # AIX else INSTALL="$dir/install -c" INSTALL_PROGRAM='$(INSTALL)' INSTALL_DATA='$(INSTALL) -m 644' break fi fi ;; esac done IFS="$saveifs" fi INSTALL=${INSTALL-cp} test -n "$verbose" && echo " setting INSTALL to $INSTALL" INSTALL_PROGRAM=${INSTALL_PROGRAM-'$(INSTALL)'} test -n "$verbose" && echo " setting INSTALL_PROGRAM to $INSTALL_PROGRAM" INSTALL_DATA=${INSTALL_DATA-'$(INSTALL)'} test -n "$verbose" && echo " setting INSTALL_DATA to $INSTALL_DATA" echo checking for ln -s rm -f conftestdata if ln -s X conftestdata 2>/dev/null then rm -f conftestdata LN_S="ln -s" else LN_S=ln fi echo checking for etags C++ option for flag in p C do test -z "$ETAGSCCFLAG" || break >conftest.c (etags -$flag -o /dev/null conftest.c >/dev/null 2>&1) 2>/dev/null && ETAGSCCFLAG="-$flag" rm -f conftest.c done echo 'checking for csh # hack' cat <conftest.sh #!/bin/sh true || exit 0 export PATH || exit 0 exit 1 EOF chmod +x conftest.sh if echo ./conftest.sh | (csh >/dev/null 2>&1) >/dev/null 2>&1 then :; SH_SCRIPT_SED_CMD='1s/.*/:/' else :; SH_SCRIPT_SED_CMD='' fi rm -f conftest.sh for hdr in unistd.h dirent.h limits.h sys/dir.h stdlib.h do trhdr=HAVE_`echo $hdr | tr '[a-z]./' '[A-Z]__'` echo checking for ${hdr} echo checking how to run the C preprocessor if test -z "$CPP"; then # This must be in double quotes, not single quotes, because CPP may get # substituted into the Makefile and ``${CC-cc}'' will simply confuse # make. It must be expanded now. CPP="${CC-cc} -E" cat > conftest.c < Syntax Error EOF err=`eval "($CPP conftest.c >/dev/null) 2>&1"` if test -z "$err"; then : else rm -rf conftest* CPP=/lib/cpp fi rm -f conftest* fi test ".${verbose}" != "." && echo " setting CPP to $CPP" cat > conftest.c < EOF err=`eval "($CPP conftest.c >/dev/null) 2>&1"` if test -z "$err"; then rm -rf conftest* { test -n "$verbose" && \ echo " defining ${trhdr}" echo "#define" ${trhdr} 1 >> confdefs.h DEFS="$DEFS -D${trhdr}=1" } fi rm -f conftest* done echo 'checking for ISC 3.x or 4.x' if grep '[34]\.' /usr/options/cb.name >/dev/null 2>&1 then { test -n "$verbose" && \ echo " defining _SYSV3" echo "#define" _SYSV3 1 >> confdefs.h DEFS="$DEFS -D_SYSV3=1" } fi echo checking for whether -D_POSIX_SOURCE is necessary cat <conftest.cc #include int main() { return 0; } void t() { (void)fileno(stdin); } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining _POSIX_SOURCE" echo "#define" _POSIX_SOURCE 1 >> confdefs.h DEFS="$DEFS -D_POSIX_SOURCE=1" } fi rm -f conftest* echo checking for 'C++ ' cat <conftest.cc #include int main() { return 0; } void t() { int x = INT_MIN; int y = INT_MAX; int z = UCHAR_MAX; } EOF if eval $cc_compile; then { test -n "$verbose" && \ echo " defining HAVE_CC_LIMITS_H" echo "#define" HAVE_CC_LIMITS_H 1 >> confdefs.h DEFS="$DEFS -DHAVE_CC_LIMITS_H=1" } fi rm -f conftest* echo checking for 'C++ ' cat <conftest.cc #include int main() { return 0; } void t() { read(0, 0, 0); open(0, 0); } EOF if eval $cc_compile; then { test -n "$verbose" && \ echo " defining HAVE_CC_OSFCN_H" echo "#define" HAVE_CC_OSFCN_H 1 >> confdefs.h DEFS="$DEFS -DHAVE_CC_OSFCN_H=1" } fi rm -f conftest* echo checking for declaration of getopt in stdlib.h cat <conftest.cc #include extern "C" { void getopt(int); } int main() { return 0; } void t() { } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining STDLIB_H_DECLARES_GETOPT" echo "#define" STDLIB_H_DECLARES_GETOPT 1 >> confdefs.h DEFS="$DEFS -DSTDLIB_H_DECLARES_GETOPT=1" } fi rm -f conftest* echo checking for declaration of getopt in unistd.h cat <conftest.cc #include #include extern "C" { void getopt(int); } int main() { return 0; } void t() { } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining UNISTD_H_DECLARES_GETOPT" echo "#define" UNISTD_H_DECLARES_GETOPT 1 >> confdefs.h DEFS="$DEFS -DUNISTD_H_DECLARES_GETOPT=1" } fi rm -f conftest* echo checking for declaration of putenv cat <conftest.cc #include extern "C" { void putenv(int); } int main() { return 0; } void t() { } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining STDLIB_H_DECLARES_PUTENV" echo "#define" STDLIB_H_DECLARES_PUTENV 1 >> confdefs.h DEFS="$DEFS -DSTDLIB_H_DECLARES_PUTENV=1" } fi rm -f conftest* echo checking for declaration of popen cat <conftest.cc #include extern "C" { void popen(int); } int main() { return 0; } void t() { } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining STDIO_H_DECLARES_POPEN" echo "#define" STDIO_H_DECLARES_POPEN 1 >> confdefs.h DEFS="$DEFS -DSTDIO_H_DECLARES_POPEN=1" } fi rm -f conftest* echo checking for declaration of pclose cat <conftest.cc #include extern "C" { void pclose(int); } int main() { return 0; } void t() { } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining STDIO_H_DECLARES_PCLOSE" echo "#define" STDIO_H_DECLARES_PCLOSE 1 >> confdefs.h DEFS="$DEFS -DSTDIO_H_DECLARES_PCLOSE=1" } fi rm -f conftest* echo checking for time_t cat <conftest.cc #include int main() { return 0; } void t() { time_t t = time(0); struct tm *p = localtime(&t); } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining LONG_FOR_TIME_T" echo "#define" LONG_FOR_TIME_T 1 >> confdefs.h DEFS="$DEFS -DLONG_FOR_TIME_T=1" } fi rm -f conftest* echo checking for return type of signal handlers cat > conftest.c < #include #ifdef signal #undef signal #endif extern void (*signal ()) (); int main() { exit(0); } int t() { int i; } EOF if eval $compile; then rm -rf conftest* { test -n "$verbose" && \ echo " defining" RETSIGTYPE to be void echo "#define" RETSIGTYPE void >> confdefs.h DEFS="$DEFS -DRETSIGTYPE=void" } else rm -rf conftest* { test -n "$verbose" && \ echo " defining" RETSIGTYPE to be int echo "#define" RETSIGTYPE int >> confdefs.h DEFS="$DEFS -DRETSIGTYPE=int" } fi rm -f conftest* echo checking for struct exception cat > conftest.c < int main() { exit(0); } int t() { struct exception e; } EOF if eval $compile; then rm -rf conftest* { test -n "$verbose" && \ echo " defining HAVE_STRUCT_EXCEPTION" echo "#define" HAVE_STRUCT_EXCEPTION 1 >> confdefs.h DEFS="$DEFS -DHAVE_STRUCT_EXCEPTION=1" } fi rm -f conftest* echo checking for mmap cat > conftest.c < #include int main() { exit(0); } int t() { char *p = mmap(0, 0, PROT_READ, MAP_PRIVATE, 0, 0); munmap(p, 0); } EOF if eval $compile; then rm -rf conftest* { test -n "$verbose" && \ echo " defining HAVE_MMAP" echo "#define" HAVE_MMAP 1 >> confdefs.h DEFS="$DEFS -DHAVE_MMAP=1" } fi rm -f conftest* echo checking for pid_t in sys/types.h echo '#include "confdefs.h" #include ' > conftest.c eval "$CPP conftest.c > conftest.out 2>&1" if egrep "pid_t" conftest.out >/dev/null 2>&1; then : else rm -rf conftest* { test -n "$verbose" && \ echo " defining" pid_t to be int echo "#define" pid_t int >> confdefs.h DEFS="$DEFS -Dpid_t=int" } fi rm -f conftest* echo checking for vfork.h cat > conftest.c < EOF err=`eval "($CPP conftest.c >/dev/null) 2>&1"` if test -z "$err"; then rm -rf conftest* { test -n "$verbose" && \ echo " defining HAVE_VFORK_H" echo "#define" HAVE_VFORK_H 1 >> confdefs.h DEFS="$DEFS -DHAVE_VFORK_H=1" } fi rm -f conftest* echo checking for working vfork cat > conftest.c < #include #include #include #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_VFORK_H #include #endif static int signalled; static RETSIGTYPE catch (s) int s; { signalled = 1; } main() { pid_t parent = getpid (); pid_t child; signal (SIGINT, catch); child = vfork (); if (child == 0) { /* On sparc systems, changes by the child to local and incoming argument registers are propagated back to the parent. The compiler is told about this with #include , but some compilers (e.g. gcc -O) don't grok . Test for this by using lots of local variables, at least as many local variables as main has allocated so far including compiler temporaries. 4 locals are enough for gcc 1.40.3 on a sparc, but we use 8 to be safe. A buggy compiler should reuse the register of parent for one of the local variables, since it will think that parent can't possibly be used any more in this routine. Assigning to the local variable will thus munge parent in the parent process. */ pid_t p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(), p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid(); /* Convince the compiler that p..p7 are live; otherwise, it might use the same hardware register for all 8 local variables. */ if (p != p1 || p != p2 || p != p3 || p != p4 || p != p5 || p != p6 || p != p7) _exit(1); /* On some systems (e.g. SunOS 5.2), if the parent is catching a signal, the child ignores the signal before execing, and the parent later receives that signal, the parent dumps core. Test for this by ignoring SIGINT in the child. */ signal (SIGINT, SIG_IGN); /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent from child file descriptors. If the child closes a descriptor before it execs or exits, this munges the parent's descriptor as well. Test for this by closing stdout in the child. */ _exit(close(fileno(stdout)) != 0); } else { int status; struct stat st; while (wait(&status) != child) ; exit( /* Was there some problem with vforking? */ child < 0 /* Did the child fail? (This shouldn't happen.) */ || status /* Did the vfork/compiler bug occur? */ || parent != getpid() /* Did the signal handling bug occur? */ || kill(parent, SIGINT) != 0 || signalled != 1 /* Did the file descriptor bug occur? */ || fstat(fileno(stdout), &st) != 0 ); } } EOF eval $compile if test -s conftest && (./conftest; exit) 2>/dev/null; then : else { test -n "$verbose" && \ echo " defining" vfork to be fork echo "#define" vfork fork >> confdefs.h DEFS="$DEFS -Dvfork=fork" } fi rm -fr conftest* saved_libs="$LIBS" LIBS="$LIBS -lm" for func in fmod strtol getcwd strerror putenv do echo checking for ${func} cat > conftest.c < int main() { exit(0); } int t() { /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined (__stub_${func}) || defined (__stub___${func}) choke me #else /* Override any gcc2 internal prototype to avoid an error. */ extern char ${func}(); ${func}(); #endif } EOF if eval $compile; then : else rm -rf conftest* LIBOBJS="$LIBOBJS ${func}.o" test -n "$verbose" && echo " using ${func}.o instead" fi rm -f conftest* done LIBS="$saved_libs" for func in rename mkstemp do trfunc=HAVE_`echo $func | tr '[a-z]' '[A-Z]'` echo checking for ${func} cat > conftest.c < int main() { exit(0); } int t() { /* The GNU C library defines this for functions which it implements to always fail with ENOSYS. Some functions are actually named something starting with __ and the normal name is an alias. */ #if defined (__stub_${func}) || defined (__stub___${func}) choke me #else /* Override any gcc2 internal prototype to avoid an error. */ extern char ${func}(); ${func}(); #endif } EOF if eval $compile; then rm -rf conftest* { test -n "$verbose" && \ echo " defining ${trfunc}" echo "#define" ${trfunc} 1 >> confdefs.h DEFS="$DEFS -D${trfunc}=1" } fi rm -f conftest* done echo checking for sys_siglist cat > conftest.c <> confdefs.h DEFS="$DEFS -DHAVE_SYS_SIGLIST=1" } fi rm -f conftest* echo checking for gcc/g++ delete bug cat < conftest.cc #include #include int testit = 0; int main() { testit = 1; int *p = new int; delete p; testit = 0; return 1; } static unsigned dummy[3]; void *operator new(size_t n) { if (testit) { dummy[1] = -(unsigned)(dummy + 2); return dummy + 2; } else return (void *)malloc(n); } void operator delete(void *p) { if (testit) { if (p == dummy) exit(0); } else free(p); } EOF rm -f conftest eval $cc_compile if test -s conftest && (./conftest) 2>/dev/null; then { test -n "$verbose" && \ echo " defining COOKIE_BUG" echo "#define" COOKIE_BUG 1 >> confdefs.h DEFS="$DEFS -DCOOKIE_BUG=1" } fi rm -f conftest* echo checking for cfront ANSI C INT_MIN bug cat < conftest.cc #include #ifdef HAVE_CC_LIMITS_H #include #else #define INT_MAX 2147483647 #endif #undef INT_MIN #define INT_MIN (-INT_MAX-1) int main() { int z = 0; return INT_MIN < z; } EOF rm -f conftest eval $cc_compile if test -s conftest && (./conftest) 2>/dev/null; then { test -n "$verbose" && \ echo " defining CFRONT_ANSI_BUG" echo "#define" CFRONT_ANSI_BUG 1 >> confdefs.h DEFS="$DEFS -DCFRONT_ANSI_BUG=1" } fi rm -f conftest* echo checking for new array delete syntax cat <conftest.cc int main() { return 0; } void t() { char *p = new char[5]; delete [] p; } EOF if eval $cc_compile; then : else { test -n "$verbose" && \ echo " defining ARRAY_DELETE_NEEDS_SIZE" echo "#define" ARRAY_DELETE_NEEDS_SIZE 1 >> confdefs.h DEFS="$DEFS -DARRAY_DELETE_NEEDS_SIZE=1" } fi rm -f conftest* echo checking for traditional preprocessor cat <conftest.cc #define name2(a,b) a/**/b int main() { return 0; } void t() { int name2(foo,bar); } EOF if eval $cc_compile; then { test -n "$verbose" && \ echo " defining TRADITIONAL_CPP" echo "#define" TRADITIONAL_CPP 1 >> confdefs.h DEFS="$DEFS -DTRADITIONAL_CPP=1" } fi rm -f conftest* echo checking for w_coredump cat > conftest.c < #include main() { #ifdef WCOREFLAG exit(1); #else int i = 0; ((union wait *)&i)->w_coredump = 1; exit(i != 0200); #endif } EOF eval $compile if test -s conftest && (./conftest; exit) 2>/dev/null; then { test -n "$verbose" && \ echo " defining" WCOREFLAG to be 0200 echo "#define" WCOREFLAG 0200 >> confdefs.h DEFS="$DEFS -DWCOREFLAG=0200" } fi rm -fr conftest* test -n "${BROKEN_SPOOLER_FLAGS}" || BROKEN_SPOOLER_FLAGS=7 echo using default value of ${BROKEN_SPOOLER_FLAGS} for grops -b option if test -z "$PAGE" && test -r $prefix/lib/groff/font/devps/DESC then if grep "^paperlength 841890" \ $prefix/lib/groff/font/devps/DESC >/dev/null 2>&1 then PAGE=A4 else PAGE=letter fi fi if test -z "$PAGE" then dom=`awk '($1 == "dom" || $1 == "search") { print $2; exit}' \ /etc/resolv.conf 2>/dev/null` if test -z "$dom" then dom=`(domainname) 2>/dev/null | tr -d '+'` if test -z "$dom" then dom=`(hostname) 2>/dev/null | grep '\.'` fi fi # If the top-level domain is two letters and it's not `us' or `ca' # then they probably use A4 paper. case "$dom" in *.[Uu][Ss]|*.[Cc][Aa]) ;; *.[A-Za-z][A-Za-z]) PAGE=A4 ;; esac fi test -n "$PAGE" || PAGE=letter echo guessing $PAGE size paper # Set default prefixes. if test -n "$prefix"; then test -z "$exec_prefix" && exec_prefix='${prefix}' prsub="s%^prefix\\([ ]*\\)=\\([ ]*\\).*$%prefix\\1=\\2$prefix%" fi if test -n "$exec_prefix"; then prsub="$prsub s%^exec_prefix\\([ ]*\\)=\\([ ]*\\).*$%exec_prefix\\1=\\2$exec_prefix%" fi # Quote sed substitution magic chars in DEFS. cat >conftest.def < config.status </dev/null | sed 1q`: # # $0 $configure_args for arg do case "\$arg" in -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r) echo running \${CONFIG_SHELL-/bin/sh} $0 $configure_args exec \${CONFIG_SHELL-/bin/sh} $0 $configure_args ;; *) echo "Usage: config.status --recheck" 2>&1; exit 1 ;; esac done trap 'rm -f Makefile; exit 1' 1 3 15 CC='$CC' CCLIBS='$CCLIBS' CCC='$CCC' LPR='$LPR' LP='$LP' LPQ='$LPQ' PSPRINT='$PSPRINT' DVIPRINT='$DVIPRINT' PERLPATH='$PERLPATH' YACC='$YACC' RANLIB='$RANLIB' INSTALL='$INSTALL' INSTALL_PROGRAM='$INSTALL_PROGRAM' INSTALL_DATA='$INSTALL_DATA' LN_S='$LN_S' ETAGSCCFLAG='$ETAGSCCFLAG' SH_SCRIPT_SED_CMD='$SH_SCRIPT_SED_CMD' CPP='$CPP' LIBOBJS='$LIBOBJS' BROKEN_SPOOLER_FLAGS='$BROKEN_SPOOLER_FLAGS' PAGE='$PAGE' LIBS='$LIBS' srcdir='$srcdir' DEFS='$DEFS' prefix='$prefix' exec_prefix='$exec_prefix' prsub='$prsub' extrasub='$extrasub' EOF cat >> config.status <<\EOF top_srcdir=$srcdir CONFIG_FILES=${CONFIG_FILES-"Makefile"} for file in .. ${CONFIG_FILES}; do if test "x$file" != x..; then srcdir=$top_srcdir # Remove last slash and all that follows it. Not all systems have dirname. dir=`echo $file|sed 's%/[^/][^/]*$%%'` if test "$dir" != "$file"; then test "$top_srcdir" != . && srcdir=$top_srcdir/$dir test ! -d $dir && mkdir $dir fi echo creating $file rm -f $file echo "# Generated automatically from `echo $file|sed 's|.*/||'`.in by configure." > $file sed -e " $prsub $extrasub s%@CC@%$CC%g s%@CCLIBS@%$CCLIBS%g s%@CCC@%$CCC%g s%@LPR@%$LPR%g s%@LP@%$LP%g s%@LPQ@%$LPQ%g s%@PSPRINT@%$PSPRINT%g s%@DVIPRINT@%$DVIPRINT%g s%@PERLPATH@%$PERLPATH%g s%@YACC@%$YACC%g s%@RANLIB@%$RANLIB%g s%@INSTALL@%$INSTALL%g s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g s%@INSTALL_DATA@%$INSTALL_DATA%g s%@LN_S@%$LN_S%g s%@ETAGSCCFLAG@%$ETAGSCCFLAG%g s%@SH_SCRIPT_SED_CMD@%$SH_SCRIPT_SED_CMD%g s%@CPP@%$CPP%g s%@LIBOBJS@%$LIBOBJS%g s%@BROKEN_SPOOLER_FLAGS@%$BROKEN_SPOOLER_FLAGS%g s%@PAGE@%$PAGE%g s%@LIBS@%$LIBS%g s%@srcdir@%$srcdir%g s%@DEFS@%$DEFS% " $top_srcdir/${file}.in >> $file fi; done exit 0 EOF chmod +x config.status ${CONFIG_SHELL-/bin/sh} config.status