📄 configure
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# some platforms. echo $ac_n "checking for strerror in -lcposix""... $ac_c" 1>&6echo "configure:860: checking for strerror in -lcposix" >&5ac_lib_var=`echo cposix'_'strerror | sed 'y%./+-%__p_%'`if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else ac_save_LIBS="$LIBS"LIBS="-lcposix $LIBS"cat > conftest.$ac_ext <<EOF#line 868 "configure"#include "confdefs.h"/* Override any gcc2 internal prototype to avoid an error. *//* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */char strerror();int main() {strerror(); return 0; }EOFif { (eval echo configure:879: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then rm -rf conftest* eval "ac_cv_lib_$ac_lib_var=yes"else echo "configure: failed program was:" >&5 cat conftest.$ac_ext >&5 rm -rf conftest* eval "ac_cv_lib_$ac_lib_var=no"firm -f conftest*LIBS="$ac_save_LIBS"fiif eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then echo "$ac_t""yes" 1>&6 LIBS="$LIBS -lcposix"else echo "$ac_t""no" 1>&6fi # Extract the first word of "gcc", so it can be a program name with args.set dummy gcc; ac_word=$2echo $ac_n "checking for $ac_word""... $ac_c" 1>&6echo "configure:904: 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="gcc" 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>&6fiif test -z "$CC"; then # Extract the first word of "cc", so it can be a program name with args.set dummy cc; ac_word=$2echo $ac_n "checking for $ac_word""... $ac_c" 1>&6echo "configure:934: 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="$IFS"; IFS=":" ac_prog_rejected=no ac_dummy="$PATH" for ac_dir in $ac_dummy; do test -z "$ac_dir" && ac_dir=. if test -f $ac_dir/$ac_word; then if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then ac_prog_rejected=yes continue fi ac_cv_prog_CC="cc" break fi done IFS="$ac_save_ifs"if test $ac_prog_rejected = yes; then # We found a bogon in the path, so make sure we never use it. set dummy $ac_cv_prog_CC shift if test $# -gt 0; then # We chose a different compiler from the bogus one. # However, it has the same basename, so the bogon will be chosen # first if we set CC to just the basename; use the full file name. shift set dummy "$ac_dir/$ac_word" "$@" shift ac_cv_prog_CC="$@" fifififiCC="$ac_cv_prog_CC"if test -n "$CC"; then echo "$ac_t""$CC" 1>&6else echo "$ac_t""no" 1>&6fi 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:985: 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""... $ac_c" 1>&6echo "configure:1017: checking whether the C compiler ($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.$ac_ext << EOF#line 1028 "configure"#include "confdefs.h"main(){return(0);}EOFif { (eval echo configure:1033: \"$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""... $ac_c" 1>&6echo "configure:1059: checking whether the C compiler ($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""... $ac_c" 1>&6echo "configure:1064: checking whether we are using GNU C" >&5if eval "test \"`echo '$''{'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:1073: \"$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:1092: 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 "$GCC" = yes; then CFLAGS="-O2" else CFLAGS= fifiam_make=${MAKE-make}cat > confinc << 'END'doit: @echo doneEND# If we don't find an include directive, just comment out the code.echo $ac_n "checking for style of include used by $am_make""... $ac_c" 1>&6echo "configure:1131: checking for style of include used by $am_make" >&5am__include='#'am__quote=_am_result=none# First try GNU make style include.echo "include confinc" > confmf# We grep out `Entering directory' and `Leaving directory'# messages which can occur if `w' ends up in MAKEFLAGS.# In particular we don't look at `^make:' because GNU make might# be invoked under some other name (usually "gmake"), in which# case it prints its new name instead of `make'.if test "`$am_make -s -f confmf 2> /dev/null | fgrep -v 'ing directory'`" = "done"; then am__include=include am__quote= _am_result=GNUfi# Now try BSD make style include.if test "$am__include" = "#"; then echo '.include "confinc"' > confmf if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then am__include=.include am__quote='"' _am_result=BSD fifiecho "$ac_t""$_am_result" 1>&6rm -f confinc confmfdepcc="$CC" am_compiler_list=echo $ac_n "checking dependency style of $depcc""... $ac_c" 1>&6echo "configure:1165: checking dependency style of $depcc" >&5if eval "test \"`echo '$''{'am_cv_CC_dependencies_compiler_type'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then # We make a subdir and do the tests there. Otherwise we can end up # making bogus files that we don't know about and never remove. For # instance it was reported that on HP-UX the gcc test will end up # making a dummy file named `D' -- because `-MD' means `put the output # in D'. mkdir conftest.dir # Copy depcomp to subdir because otherwise we won't find it if we're # using a relative directory. cp "$am_depcomp" conftest.dir cd conftest.dir am_cv_CC_dependencies_compiler_type=none if test "$am_compiler_list" = ""; then am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp` fi for depmode in $am_compiler_list; do # We need to recreate these files for each test, as the compiler may # overwrite some of them when testing with obscure command lines. # This happens at least with the AIX C compiler. echo '#include "conftest.h"' > conftest.c echo 'int i;' > conftest.h echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf case $depmode in nosideeffect) # after this tag, mechanisms are not by side-effect, so they'll # only be used when explicitly requested if test "x$enable_dependency_tracking" = xyes; then continue else break fi ;; none) break ;; esac # We check with `-c' and `-o' for the sake of the "dashmstdout" # mode. It turns out that the SunPro C++ compiler does not properly # handle `-M -o', and we need to detect this. if depmode=$depmode \ source=conftest.c object=conftest.o \ depfile=conftest.Po tmpdepfile=conftest.TPo \ $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 && grep conftest.h conftest.Po > /dev/null 2>&1 && ${MAKE-make} -s -f confmf > /dev/null 2>&1; then am_cv_CC_dependencies_compiler_type=$depmode break fi done cd .. rm -rf conftest.direlse am_cv_CC_dependencies_compiler_type=nonefifiecho "$ac_t""$am_cv_CC_dependencies_compiler_type" 1>&6CCDEPMODE="depmode=$am_cv_CC_dependencies_compiler_type"echo $ac_n "checking for ${CC-cc} option to accept ANSI C""... $ac_c" 1>&6echo "configure:1235: checking for ${CC-cc} option to accept ANSI C" >&5if eval "test \"`echo '$''{'am_cv_prog_cc_stdc'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6else am_cv_prog_cc_stdc=noac_save_CC="$CC"# Don't try gcc -ansi; that turns off useful extensions and# breaks some systems' header files.# AIX -qlanglvl=ansi# Ultrix and OSF/1 -std1# HP-UX 10.20 and later -Ae# HP-UX older versions -Aa -D_HPUX_SOURCE# SVR4 -Xc -D__EXTENSIONS__for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"do CC="$ac_save_CC $ac_arg" cat > conftest.$ac_ext <<EOF#line 1252 "configure"#include "confdefs.h"#include <stdarg.h>#include <stdio.h>#include <sys/types.h>#include <sys/stat.h>/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */struct buf { int x; };FILE * (*rcsopen) (struct buf *, struct stat *, int);static char *e (p, i) char **p; int i;{ return p[i];}static char *f (char * (*g) (char **, int), char **p, ...){ char *s; va_list v; va_start (v,p); s = g (p, va_arg (v,int)); va_end (v); return s;}int test (int i, double x);
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