📄 configure
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if test -z "$CC"; then case "`uname -s`" in *win32* | *WIN32*) # Extract the first word of "cl", so it can be a program name with args.set dummy cl; ac_word=$2echo $ac_n "checking for $ac_word""... $ac_c" 1>&6echo "configure:882: checking for $ac_word" >&5if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else if test -n "$CC"; then ac_cv_prog_CC="$CC" # Let the user override the test.else IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":" ac_dummy="$PATH" for ac_dir in $ac_dummy; do test -z "$ac_dir" && ac_dir=. if test -f $ac_dir/$ac_word; then ac_cv_prog_CC="cl" break fi done IFS="$ac_save_ifs"fifiCC="$ac_cv_prog_CC"if test -n "$CC"; then echo "$ac_t""$CC" 1>&6else echo "$ac_t""no" 1>&6fi ;; esac fi test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }fiecho $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6echo "configure:914: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5ac_ext=c# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.ac_cpp='$CPP $CPPFLAGS'ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'cross_compiling=$ac_cv_prog_cc_crosscat > conftest.$ac_ext << EOF#line 925 "configure"#include "confdefs.h"main(){return(0);}EOFif { (eval echo configure:930: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then ac_cv_prog_cc_works=yes # If we can't run a trivial program, we are probably using a cross compiler. if (./conftest; exit) 2>/dev/null; then ac_cv_prog_cc_cross=no else ac_cv_prog_cc_cross=yes fielse echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 ac_cv_prog_cc_works=nofirm -fr conftest*ac_ext=c# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.ac_cpp='$CPP $CPPFLAGS'ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'cross_compiling=$ac_cv_prog_cc_crossecho "$ac_t""$ac_cv_prog_cc_works" 1>&6if test $ac_cv_prog_cc_works = no; then { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }fiecho $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6echo "configure:956: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6cross_compiling=$ac_cv_prog_cc_crossecho $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6echo "configure:961: checking whether we are using GNU C" >&5if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else cat > conftest.c <<EOF#ifdef __GNUC__ yes;#endifEOFif { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:970: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then ac_cv_prog_gcc=yeselse ac_cv_prog_gcc=nofifiecho "$ac_t""$ac_cv_prog_gcc" 1>&6if test $ac_cv_prog_gcc = yes; then GCC=yeselse GCC=fiac_test_CFLAGS="${CFLAGS+set}"ac_save_CFLAGS="$CFLAGS"CFLAGS=echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6echo "configure:989: checking whether ${CC-cc} accepts -g" >&5if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else echo 'void f(){}' > conftest.cif test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then ac_cv_prog_cc_g=yeselse ac_cv_prog_cc_g=nofirm -f conftest*fiecho "$ac_t""$ac_cv_prog_cc_g" 1>&6if test "$ac_test_CFLAGS" = set; then CFLAGS="$ac_save_CFLAGS"elif test $ac_cv_prog_cc_g = yes; then if test "$GCC" = yes; then CFLAGS="-g -O2" else CFLAGS="-g" fielse if test "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fifi# Find a good install program. We prefer a C program (faster),# so one script is as good as another. But avoid the broken or# incompatible versions:# SysV /etc/install, /usr/sbin/install# SunOS /usr/etc/install# IRIX /sbin/install# AIX /bin/install# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag# AFS /usr/afsws/bin/install, which mishandles nonexistent args# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"# ./install, which can be erroneously created by make from ./install.sh.echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6echo "configure:1032: checking for a BSD compatible install" >&5if test -z "$INSTALL"; thenif eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS=":" for ac_dir in $PATH; do # Account for people who put trailing slashes in PATH elements. case "$ac_dir/" in /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;; *) # OSF1 and SCO ODT 3.0 have their own names for install. # Don't use installbsd from OSF since it installs stuff as root # by default. for ac_prog in ginstall scoinst install; do if test -f $ac_dir/$ac_prog; then if test $ac_prog = install && grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then # AIX install. It has an incompatible calling convention. : else ac_cv_path_install="$ac_dir/$ac_prog -c" break 2 fi fi done ;; esac done IFS="$ac_save_IFS"fi if test "${ac_cv_path_install+set}" = set; then INSTALL="$ac_cv_path_install" else # As a last resort, use the slow shell script. We don't cache a # path for INSTALL within a source directory, because that will # break other packages using the cache if that directory is # removed, or if the path is relative. INSTALL="$ac_install_sh" fifiecho "$ac_t""$INSTALL" 1>&6# Use test -z because SunOS4 sh mishandles braces in ${var-val}.# It thinks the first close brace ends the variable substitution.test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6echo "configure:1086: checking how to run the C preprocessor" >&5# On Suns, sometimes $CPP names a directory.if test -n "$CPP" && test -d "$CPP"; then CPP=fiif test -z "$CPP"; thenif eval "test \"`echo '$''{'ac_cv_prog_CPP'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else # This must be in double quotes, not single quotes, because CPP may get # substituted into the Makefile and "${CC-cc}" will confuse make. CPP="${CC-cc} -E" # On the NeXT, cc -E runs the code through the compiler's parser, # not just through cpp. cat > conftest.$ac_ext <<EOF#line 1101 "configure"#include "confdefs.h"#include <assert.h>Syntax ErrorEOFac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"{ (eval echo configure:1107: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`if test -z "$ac_err"; then :else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* CPP="${CC-cc} -E -traditional-cpp" cat > conftest.$ac_ext <<EOF#line 1118 "configure"#include "confdefs.h"#include <assert.h>Syntax ErrorEOFac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"{ (eval echo configure:1124: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`if test -z "$ac_err"; then :else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* CPP="${CC-cc} -nologo -E" cat > conftest.$ac_ext <<EOF#line 1135 "configure"#include "confdefs.h"#include <assert.h>Syntax ErrorEOFac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"{ (eval echo configure:1141: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`if test -z "$ac_err"; then :else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* CPP=/lib/cppfirm -f conftest*firm -f conftest*firm -f conftest* ac_cv_prog_CPP="$CPP"fi CPP="$ac_cv_prog_CPP"else ac_cv_prog_CPP="$CPP"fiecho "$ac_t""$CPP" 1>&6echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6echo "configure:1166: checking for ANSI C header files" >&5if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else cat > conftest.$ac_ext <<EOF#line 1171 "configure"#include "confdefs.h"#include <stdlib.h>#include <stdarg.h>#include <string.h>#include <float.h>EOFac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"{ (eval echo configure:1179: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`if test -z "$ac_err"; then rm -rf conftest* ac_cv_header_stdc=yeselse echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* ac_cv_header_stdc=nofirm -f conftest*if test $ac_cv_header_stdc = yes; then # SunOS 4.x string.h does not declare mem*, contrary to ANSI.cat > conftest.$ac_ext <<EOF#line 1196 "configure"#include "confdefs.h"#include <string.h>EOFif (eval "$ac_cpp conftest.$ac_ext") 2>&5 | egrep "memchr" >/dev/null 2>&1; then :else rm -rf conftest* ac_cv_header_stdc=nofirm -f conftest*fiif test $ac_cv_header_stdc = yes; then # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.cat > conftest.$ac_ext <<EOF#line 1214 "configure"#include "confdefs.h"#include <stdlib.h>EOFif (eval "$ac_cpp conftest.$ac_ext") 2>&5 | egrep "free" >/dev/null 2>&1; then :else rm -rf conftest* ac_cv_header_stdc=nofirm -f conftest*fiif 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 > conftest.$ac_ext <<EOF#line 1235 "configure"#include "confdefs.h"#include <ctype.h>#define ISLOWER(c) ('a' <= (c) && (c) <= 'z')#define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))int main () { int i; for (i = 0; i < 256; i++)if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);exit (0); }EOFif { (eval echo configure:1246: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/nullthen :else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -fr conftest* ac_cv_header_stdc=nofirm -fr conftest*fififiecho "$ac_t""$ac_cv_header_stdc" 1>&6if test $ac_cv_header_stdc = yes; then cat >> confdefs.h <<\EOF#define STDC_HEADERS 1EOFfifor ac_hdr in unistd.h strings.h errno.hdoac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6echo "configure:1273: checking for $ac_hdr" >&5if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else cat > conftest.$ac_ext <<EOF#line 1278 "configure"#include "confdefs.h"#include <$ac_hdr>EOFac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"{ (eval echo configure:1283: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`if test -z "$ac_err"; then rm -rf conftest* eval "ac_cv_header_$ac_safe=yes"else echo "$ac_err" >&5 echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* eval "ac_cv_header_$ac_safe=no"firm -f conftest*fiif eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then echo "$ac_t""yes" 1>&6 ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'` cat >> confdefs.h <<EOF#define $ac_tr_hdr 1EOF else echo "$ac_t""no" 1>&6fidoneecho $ac_n "checking for working const""... $ac_c" 1>&6echo "configure:1311: checking for working const" >&5if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
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