This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. It was created by configure, which was generated by GNU Autoconf 2.57. Invocation command line was $ ./configure --prefix=/usr --with-etcdir=/etc/courier --enable-maildropldap --with-ldapconfig=/etc/courier/maildropldap.config --enable-syslog=1 --enable-restrict-trusted=1 --disable-userdb --without-db --enable-trusted-users=mail --enable-maildirquota --prefix=/usr --sysconfdir=/etc --localstatedir=/var --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --build=i586-uhu-linux --host=i586-uhu-linux build_alias=i586-uhu-linux host_alias=i586-uhu-linux --with-userdb=/etc/courier/userdb --with-userdbtmpdir=/etc/courier --with-makedatprog=${exec_prefix}/bin/makedatprog --cache-file=/dev/null --srcdir=. ## --------- ## ## Platform. ## ## --------- ## hostname = norris uname -m = i686 uname -r = 2.6.17.6-3 uname -s = Linux uname -v = #1 SMP Wed Jul 26 12:57:38 CEST 2006 /usr/bin/uname -p = unknown /bin/uname -X = unknown /bin/arch = i686 /usr/bin/arch -k = unknown /usr/convex/getsysinfo = unknown hostinfo = unknown /bin/machine = unknown /usr/bin/oslevel = unknown /bin/universe = unknown PATH: /usr/lib/uhubuild PATH: /usr/lib/ccache PATH: /sbin PATH: /usr/sbin PATH: /bin PATH: /usr/bin ## ----------- ## ## Core tests. ## ## ----------- ## configure:1314: checking for a BSD-compatible install configure:1368: result: /bin/install -c configure:1379: checking whether build environment is sane configure:1422: result: yes configure:1455: checking for gawk configure:1471: found /bin/gawk configure:1481: result: gawk configure:1491: checking whether make sets $(MAKE) configure:1511: result: yes configure:1662: checking for i586-uhu-linux-gcc configure:1678: found /usr/lib/ccache/i586-uhu-linux-gcc configure:1688: result: i586-uhu-linux-gcc configure:1970: checking for C compiler version configure:1973: i586-uhu-linux-gcc --version &5 i586-uhu-linux-gcc (GCC) 3.4.6 Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. configure:1976: $? = 0 configure:1978: i586-uhu-linux-gcc -v &5 Reading specs from /usr/lib/gcc/i586-uhu-linux/3.4.6/specs Configured with: /var/uhubuild/work/compile/configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --enable-languages=c,c++ --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --host=i586-uhu-linux Thread model: posix gcc version 3.4.6 configure:1981: $? = 0 configure:1983: i586-uhu-linux-gcc -V &5 i586-uhu-linux-gcc: `-V' option must have argument configure:1986: $? = 1 configure:2010: checking for C compiler default output configure:2013: i586-uhu-linux-gcc conftest.c >&5 configure:2016: $? = 0 configure:2062: result: a.out configure:2067: checking whether the C compiler works configure:2073: ./a.out configure:2076: $? = 0 configure:2093: result: yes configure:2100: checking whether we are cross compiling configure:2102: result: no configure:2105: checking for suffix of executables configure:2107: i586-uhu-linux-gcc -o conftest conftest.c >&5 configure:2110: $? = 0 configure:2135: result: configure:2141: checking for suffix of object files configure:2163: i586-uhu-linux-gcc -c conftest.c >&5 configure:2166: $? = 0 configure:2188: result: o configure:2192: checking whether we are using the GNU C compiler configure:2217: i586-uhu-linux-gcc -c conftest.c >&5 configure:2220: $? = 0 configure:2223: test -s conftest.o configure:2226: $? = 0 configure:2239: result: yes configure:2245: checking whether i586-uhu-linux-gcc accepts -g configure:2267: i586-uhu-linux-gcc -c -g conftest.c >&5 configure:2270: $? = 0 configure:2273: test -s conftest.o configure:2276: $? = 0 configure:2287: result: yes configure:2304: checking for i586-uhu-linux-gcc option to accept ANSI C configure:2365: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:2368: $? = 0 configure:2371: test -s conftest.o configure:2374: $? = 0 configure:2392: result: none needed configure:2410: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 conftest.c:2: error: syntax error before "me" configure:2413: $? = 1 configure: failed program was: | #ifndef __cplusplus | choke me | #endif configure:2541: checking for style of include used by make configure:2569: result: GNU configure:2597: checking dependency style of i586-uhu-linux-gcc configure:2659: result: gcc3 configure:2670: checking how to run the C preprocessor configure:2706: i586-uhu-linux-gcc -E conftest.c configure:2712: $? = 0 configure:2744: i586-uhu-linux-gcc -E conftest.c configure:2743:28: ac_nonexistent.h: No such file or directory configure:2750: $? = 1 configure: failed program was: | #line 2735 "configure" | /* confdefs.h. */ | | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | #include configure:2788: result: i586-uhu-linux-gcc -E configure:2813: i586-uhu-linux-gcc -E conftest.c configure:2819: $? = 0 configure:2851: i586-uhu-linux-gcc -E conftest.c configure:2850:28: ac_nonexistent.h: No such file or directory configure:2857: $? = 1 configure: failed program was: | #line 2842 "configure" | /* confdefs.h. */ | | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | /* end confdefs.h. */ | #include configure:2900: checking for egrep configure:2910: result: grep -E configure:2916: checking for AIX configure:2939: result: no configure:2945: checking for ANSI C header files configure:2971: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:2974: $? = 0 configure:2977: test -s conftest.o configure:2980: $? = 0 configure:3072: i586-uhu-linux-gcc -o conftest -g -O2 conftest.c >&5 configure:3075: $? = 0 configure:3077: ./conftest configure:3080: $? = 0 configure:3095: result: yes configure:3119: checking for sys/types.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for sys/stat.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for stdlib.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for string.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for memory.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for strings.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for inttypes.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for stdint.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3119: checking for unistd.h configure:3136: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3139: $? = 0 configure:3142: test -s conftest.o configure:3145: $? = 0 configure:3156: result: yes configure:3178: checking minix/config.h usability configure:3191: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:3232:26: minix/config.h: No such file or directory configure:3194: $? = 1 configure: failed program was: | #line 3180 "configure" | /* confdefs.h. */ | | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | #define STDC_HEADERS 1 | #define HAVE_SYS_TYPES_H 1 | #define HAVE_SYS_STAT_H 1 | #define HAVE_STDLIB_H 1 | #define HAVE_STRING_H 1 | #define HAVE_MEMORY_H 1 | #define HAVE_STRINGS_H 1 | #define HAVE_INTTYPES_H 1 | #define HAVE_STDINT_H 1 | #define HAVE_UNISTD_H 1 | /* end confdefs.h. */ | #include | #if HAVE_SYS_TYPES_H | # include | #endif | #if HAVE_SYS_STAT_H | # include | #endif | #if STDC_HEADERS | # include | # include | #else | # if HAVE_STDLIB_H | # include | # endif | #endif | #if HAVE_STRING_H | # if !STDC_HEADERS && HAVE_MEMORY_H | # include | # endif | # include | #endif | #if HAVE_STRINGS_H | # include | #endif | #if HAVE_INTTYPES_H | # include | #else | # if HAVE_STDINT_H | # include | # endif | #endif | #if HAVE_UNISTD_H | # include | #endif | #include configure:3210: result: no configure:3214: checking minix/config.h presence configure:3225: i586-uhu-linux-gcc -E conftest.c configure:3234:26: minix/config.h: No such file or directory configure:3231: $? = 1 configure: failed program was: | #line 3216 "configure" | /* confdefs.h. */ | | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | #define STDC_HEADERS 1 | #define HAVE_SYS_TYPES_H 1 | #define HAVE_SYS_STAT_H 1 | #define HAVE_STDLIB_H 1 | #define HAVE_STRING_H 1 | #define HAVE_MEMORY_H 1 | #define HAVE_STRINGS_H 1 | #define HAVE_INTTYPES_H 1 | #define HAVE_STDINT_H 1 | #define HAVE_UNISTD_H 1 | /* end confdefs.h. */ | #include configure:3250: result: no configure:3286: checking for minix/config.h configure:3293: result: no configure:3323: checking for strerror in -lcposix configure:3354: i586-uhu-linux-gcc -o conftest -g -O2 conftest.c -lcposix >&5 /usr/bin/ld: cannot find -lcposix collect2: ld returned 1 exit status configure:3357: $? = 1 configure: failed program was: | #line 3330 "configure" | /* confdefs.h. */ | | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | #define STDC_HEADERS 1 | #define HAVE_SYS_TYPES_H 1 | #define HAVE_SYS_STAT_H 1 | #define HAVE_STDLIB_H 1 | #define HAVE_STRING_H 1 | #define HAVE_MEMORY_H 1 | #define HAVE_STRINGS_H 1 | #define HAVE_INTTYPES_H 1 | #define HAVE_STDINT_H 1 | #define HAVE_UNISTD_H 1 | /* end confdefs.h. */ | | /* Override any gcc2 internal prototype to avoid an error. */ | #ifdef __cplusplus | extern "C" | #endif | /* 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; | } configure:3375: result: no configure:3387: checking for gawk configure:3413: result: gawk configure:3433: checking for i586-uhu-linux-g++ configure:3449: found /usr/lib/ccache/i586-uhu-linux-g++ configure:3459: result: i586-uhu-linux-g++ configure:3517: checking for C++ compiler version configure:3520: i586-uhu-linux-g++ --version &5 i586-uhu-linux-g++ (GCC) 3.4.6 Copyright (C) 2006 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. configure:3523: $? = 0 configure:3525: i586-uhu-linux-g++ -v &5 Reading specs from /usr/lib/gcc/i586-uhu-linux/3.4.6/specs Configured with: /var/uhubuild/work/compile/configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --enable-languages=c,c++ --enable-shared --with-gnu-as --with-gnu-ld --with-system-zlib --host=i586-uhu-linux Thread model: posix gcc version 3.4.6 configure:3528: $? = 0 configure:3530: i586-uhu-linux-g++ -V &5 i586-uhu-linux-g++: `-V' option must have argument configure:3533: $? = 1 configure:3536: checking whether we are using the GNU C++ compiler configure:3561: i586-uhu-linux-g++ -c conftest.cc >&5 configure:3564: $? = 0 configure:3567: test -s conftest.o configure:3570: $? = 0 configure:3583: result: yes configure:3589: checking whether i586-uhu-linux-g++ accepts -g configure:3611: i586-uhu-linux-g++ -c -g conftest.cc >&5 configure:3614: $? = 0 configure:3617: test -s conftest.o configure:3620: $? = 0 configure:3631: result: yes configure:3675: i586-uhu-linux-g++ -c -g -O2 conftest.cc >&5 configure:3678: $? = 0 configure:3681: test -s conftest.o configure:3684: $? = 0 configure:3711: i586-uhu-linux-g++ -c -g -O2 conftest.cc >&5 configure: In function `int main()': configure:3716: error: `exit' was not declared in this scope configure:3714: $? = 1 configure: failed program was: | #line 3694 "configure" | /* confdefs.h. */ | | #define PACKAGE_NAME "" | #define PACKAGE_TARNAME "" | #define PACKAGE_VERSION "" | #define PACKAGE_STRING "" | #define PACKAGE_BUGREPORT "" | #define STDC_HEADERS 1 | #define HAVE_SYS_TYPES_H 1 | #define HAVE_SYS_STAT_H 1 | #define HAVE_STDLIB_H 1 | #define HAVE_STRING_H 1 | #define HAVE_MEMORY_H 1 | #define HAVE_STRINGS_H 1 | #define HAVE_INTTYPES_H 1 | #define HAVE_STDINT_H 1 | #define HAVE_UNISTD_H 1 | /* end confdefs.h. */ | | int | main () | { | exit (42); | ; | return 0; | } configure:3675: i586-uhu-linux-g++ -c -g -O2 conftest.cc >&5 configure:3678: $? = 0 configure:3681: test -s conftest.o configure:3684: $? = 0 configure:3711: i586-uhu-linux-g++ -c -g -O2 conftest.cc >&5 configure:3714: $? = 0 configure:3717: test -s conftest.o configure:3720: $? = 0 configure:3745: checking dependency style of i586-uhu-linux-g++ configure:3807: result: gcc3 configure:3815: checking for i586-uhu-linux-ranlib configure:3844: result: no configure:3853: checking for ranlib configure:3869: found /usr/bin/ranlib configure:3880: result: ranlib configure:3895: checking for gdbm_open in -lgdbm configure:3926: i586-uhu-linux-gcc -o conftest -g -O2 conftest.c -lgdbm >&5 configure:3929: $? = 0 configure:3932: test -s conftest configure:3935: $? = 0 configure:3947: result: yes configure:3954: checking for gdbm_open configure:4004: i586-uhu-linux-gcc -o conftest -g -O2 conftest.c -lgdbm >&5 configure:4007: $? = 0 configure:4010: test -s conftest configure:4013: $? = 0 configure:4024: result: yes configure:4039: checking for gdbm_fdesc configure:4089: i586-uhu-linux-gcc -o conftest -g -O2 conftest.c -lgdbm >&5 configure:4092: $? = 0 configure:4095: test -s conftest configure:4098: $? = 0 configure:4109: result: yes configure:4126: checking for unistd.h configure:4131: result: yes configure:4135: checking fcntl.h usability configure:4148: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:4151: $? = 0 configure:4154: test -s conftest.o configure:4157: $? = 0 configure:4167: result: yes configure:4171: checking fcntl.h presence configure:4182: i586-uhu-linux-gcc -E conftest.c configure:4188: $? = 0 configure:4207: result: yes configure:4243: checking for fcntl.h configure:4250: result: yes configure:4280: checking for an ANSI C-conforming const configure:4348: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:4351: $? = 0 configure:4354: test -s conftest.o configure:4357: $? = 0 configure:4368: result: yes configure:4378: checking for size_t configure:4403: i586-uhu-linux-gcc -c -g -O2 conftest.c >&5 configure:4406: $? = 0 configure:4409: test -s conftest.o configure:4412: $? = 0 configure:4423: result: yes configure:4443: checking if the C++ compiler needs -fhandle-exceptions configure:4468: i586-uhu-linux-g++ -c -g -O2 conftest.cc >&5 configure:4471: $? = 0 configure:4474: test -s conftest.o configure:4477: $? = 0 configure:4489: result: no configure:4614: creating ./config.status ## ---------------------- ## ## Running config.status. ## ## ---------------------- ## This file was extended by config.status, which was generated by GNU Autoconf 2.57. Invocation command line was CONFIG_FILES = CONFIG_HEADERS = CONFIG_LINKS = CONFIG_COMMANDS = $ ./config.status on norris config.status:657: creating Makefile config.status:761: creating config.h config.status:974: executing depfiles commands ## ---------------- ## ## Cache variables. ## ## ---------------- ## ac_cv_c_compiler_gnu=yes ac_cv_c_const=yes ac_cv_cxx_compiler_gnu=yes ac_cv_env_CC_set= ac_cv_env_CC_value= ac_cv_env_CFLAGS_set= ac_cv_env_CFLAGS_value= ac_cv_env_CPPFLAGS_set= ac_cv_env_CPPFLAGS_value= ac_cv_env_CPP_set= ac_cv_env_CPP_value= ac_cv_env_CXXFLAGS_set= ac_cv_env_CXXFLAGS_value= ac_cv_env_CXX_set= ac_cv_env_CXX_value= ac_cv_env_LDFLAGS_set= ac_cv_env_LDFLAGS_value= ac_cv_env_build_alias_set=set ac_cv_env_build_alias_value=i586-uhu-linux ac_cv_env_host_alias_set=set ac_cv_env_host_alias_value=i586-uhu-linux ac_cv_env_target_alias_set= ac_cv_env_target_alias_value= ac_cv_exeext= ac_cv_func_gdbm_fdesc=yes ac_cv_func_gdbm_open=yes ac_cv_header_fcntl_h=yes ac_cv_header_inttypes_h=yes ac_cv_header_memory_h=yes ac_cv_header_minix_config_h=no ac_cv_header_stdc=yes ac_cv_header_stdint_h=yes ac_cv_header_stdlib_h=yes ac_cv_header_string_h=yes ac_cv_header_strings_h=yes ac_cv_header_sys_stat_h=yes ac_cv_header_sys_types_h=yes ac_cv_header_unistd_h=yes ac_cv_lib_cposix_strerror=no ac_cv_lib_gdbm_gdbm_open=yes ac_cv_objext=o ac_cv_path_install='/bin/install -c' ac_cv_prog_AWK=gawk ac_cv_prog_CC=i586-uhu-linux-gcc ac_cv_prog_CPP='i586-uhu-linux-gcc -E' ac_cv_prog_CXX=i586-uhu-linux-g++ ac_cv_prog_ac_ct_RANLIB=ranlib ac_cv_prog_cc_g=yes ac_cv_prog_cc_stdc= ac_cv_prog_cxx_g=yes ac_cv_prog_egrep='grep -E' ac_cv_prog_make_make_set=yes ac_cv_type_size_t=yes am_cv_CC_dependencies_compiler_type=gcc3 am_cv_CXX_dependencies_compiler_type=gcc3 ## ----------------- ## ## Output variables. ## ## ----------------- ## ACLOCAL='${SHELL} /var/uhubuild/work/compile/missing --run aclocal-1.6' AMDEPBACKSLASH='\' AMDEP_FALSE='#' AMDEP_TRUE='' AMTAR='${SHELL} /var/uhubuild/work/compile/missing --run tar' AUTOCONF='${SHELL} /var/uhubuild/work/compile/missing --run autoconf' AUTOHEADER='${SHELL} /var/uhubuild/work/compile/missing --run autoheader' AUTOMAKE='${SHELL} /var/uhubuild/work/compile/missing --run automake-1.6' AWK='gawk' CC='i586-uhu-linux-gcc' CCDEPMODE='depmode=gcc3' CFLAGS='-g -O2' CPP='i586-uhu-linux-gcc -E' CPPFLAGS='' CXX='i586-uhu-linux-g++' CXXDEPMODE='depmode=gcc3' CXXFLAGS='-g -O2' DEFS='-DHAVE_CONFIG_H' DEPDIR='.deps' ECHO_C='' ECHO_N='-n' ECHO_T='' EGREP='grep -E' EXEEXT='' FOUND_GDBM_FALSE='#' FOUND_GDBM_TRUE='' INSTALL_DATA='${INSTALL} -m 644' INSTALL_PROGRAM='${INSTALL}' INSTALL_SCRIPT='${INSTALL}' INSTALL_STRIP_PROGRAM='${SHELL} $(install_sh) -c -s' LDFLAGS='' LIBGDBM='-lgdbm' LIBOBJS='' LIBS='' LTLIBOBJS='' MAKEINFO='${SHELL} /var/uhubuild/work/compile/missing --run makeinfo' OBJEXT='o' PACKAGE='gdbmobj' PACKAGE_BUGREPORT='' PACKAGE_NAME='' PACKAGE_STRING='' PACKAGE_TARNAME='' PACKAGE_VERSION='' PATH_SEPARATOR=':' RANLIB='ranlib' SET_MAKE='' SHELL='/bin/sh' STRIP='' VERSION='0.10' ac_ct_CC='' ac_ct_CXX='' ac_ct_RANLIB='ranlib' ac_ct_STRIP='' am__include='include' am__quote='' bindir='${exec_prefix}/bin' build_alias='i586-uhu-linux' datadir='${prefix}/share' exec_prefix='${prefix}' host_alias='i586-uhu-linux' includedir='${prefix}/include' infodir='/usr/share/info' install_sh='/var/uhubuild/work/compile/install-sh' libdir='${exec_prefix}/lib' libexecdir='${exec_prefix}/libexec' localstatedir='/var' mandir='/usr/share/man' oldincludedir='/usr/include' prefix='/usr' program_transform_name='s,x,x,' sbindir='${exec_prefix}/sbin' sharedstatedir='${prefix}/com' sysconfdir='/etc' target_alias='' ## ----------- ## ## confdefs.h. ## ## ----------- ## #define HAVE_FCNTL_H 1 #define HAVE_GDBM_FDESC 1 #define HAVE_INTTYPES_H 1 #define HAVE_MEMORY_H 1 #define HAVE_STDINT_H 1 #define HAVE_STDLIB_H 1 #define HAVE_STRINGS_H 1 #define HAVE_STRING_H 1 #define HAVE_SYS_STAT_H 1 #define HAVE_SYS_TYPES_H 1 #define HAVE_UNISTD_H 1 #define HAVE_UNISTD_H 1 #define PACKAGE_BUGREPORT "" #define PACKAGE_NAME "" #define PACKAGE_STRING "" #define PACKAGE_TARNAME "" #define PACKAGE_VERSION "" #define STDC_HEADERS 1 #endif #ifdef __cplusplus #include configure: exit 0