Build of httptunnel with clang_glibc toolchain

# [tuscan]
# Server = file:///var/cache/pacman/pkg/

# :: Synchronizing package databases...
# downloading tuscan.db...

# /toolchain_root/sysroot --> /sysroot/sysroot
# /toolchain_root/lib --> /sysroot/lib
# /toolchain_root/sbin --> /sysroot/sbin
# /toolchain_root/lib64 --> /sysroot/lib64
# /toolchain_root/etc --> /sysroot/etc
# /toolchain_root/share --> /sysroot/share
# /toolchain_root/bin --> /sysroot/bin
# /toolchain_root/var --> /sysroot/var
# /toolchain_root/usr --> /sysroot/usr
# /toolchain_root/glibc-build --> /sysroot/glibc-build
# /toolchain_root/x86_64-pc-linux-gnu --> /sysroot/x86_64-pc-linux-gnu
# /toolchain_root/include --> /sysroot/include
# /toolchain_root/libexec --> /sysroot/libexec

# ==> Making package: httptunnel 3.3-5 (Thu Apr 13 11:17:14 UTC 2017)
# ==> Checking runtime dependencies...
# ==> Checking buildtime dependencies...
# ==> WARNING: Using existing $srcdir/ tree
# ==> Starting build()...
# creating cache ./config.cache
# checking for a BSD compatible install... /usr/bin/install -c
# checking whether build environment is sane... yes
# checking whether make sets ${MAKE}... yes
# checking for working aclocal... found
# checking for working autoconf... found
# checking for working automake... found
# checking for working autoheader... found
# checking for working makeinfo... found
# checking for mawk... no
# checking for gawk... gawk
# checking for gcc... clang
# checking whether the C compiler (clang -O2 -Wall -fomit-frame-pointer ) works... yes
# checking whether the C compiler (clang -O2 -Wall -fomit-frame-pointer ) is a cross-compiler... no
# checking whether we are using GNU C... yes
# checking whether clang accepts -g... yes
# checking for a BSD compatible install... /usr/bin/install -c
# checking whether ln -s works... yes
# checking for ranlib... ranlib
# checking for gethostent... yes
# checking for setsockopt... yes
# checking how to run the C preprocessor... clang -E
# checking for ANSI C header files... yes
# checking for fcntl.h... yes
# checking for syslog.h... yes
# checking for unistd.h... yes
# checking for sys/poll.h... yes
# checking for working const... yes
# checking for inline... inline
# checking for size_t... yes
# checking for socklen_t... yes
# checking whether INADDR_NONE is defined... yes
# checking size of char... 1
# checking size of short... 2
# checking size of int... 4
# checking size of long... 8
# checking size of long long... 8
# checking for 8-bit clean memcmp... yes
# checking return type of signal handlers... void
# checking for vprintf... yes
# checking for socket... yes
# checking for strdup... yes
# checking for strerror... yes
# checking for daemon... yes
# checking for vsyslog... yes
# checking for poll... yes
# checking for select... yes
# checking for endprotoent... yes
# checking for vsnprintf... yes
# checking for syslog... yes
# updating cache ./config.cache
# creating ./config.status
# creating Makefile
# creating port/Makefile
# creating port/sys/Makefile
# creating config.h
# make all-recursive
# make[1]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3'
# Making all in port
# make[2]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# Making all in sys
# make[3]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port/sys'
# make[3]: Nothing to be done for 'all'.
# make[3]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port/sys'
# make[3]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# clang -DHAVE_CONFIG_H -I. -I. -I.. -O2 -Wall -fomit-frame-pointer -c poll.c
# clang -DHAVE_CONFIG_H -I. -I. -I.. -O2 -Wall -fomit-frame-pointer -c daemon.c
# clang -DHAVE_CONFIG_H -I. -I. -I.. -O2 -Wall -fomit-frame-pointer -c vsyslog.c
# clang -DHAVE_CONFIG_H -I. -I. -I.. -O2 -Wall -fomit-frame-pointer -c endprotoent.c
# clang -DHAVE_CONFIG_H -I. -I. -I.. -O2 -Wall -fomit-frame-pointer -c getopt.c
# clang -DHAVE_CONFIG_H -I. -I. -I.. -O2 -Wall -fomit-frame-pointer -c getopt1.c
# clang -DHAVE_CONFIG_H -I. -I. -I.. -O2 -Wall -fomit-frame-pointer -c vsnprintf.c
# rm -f libport.a
# ar cru libport.a poll.o daemon.o vsyslog.o endprotoent.o getopt.o getopt1.o vsnprintf.o
# ar: `u' modifier ignored since `D' is the default (see `U')
# ranlib libport.a
# make[3]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# make[2]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# make[2]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3'
# clang -DHAVE_CONFIG_H -I. -I. -I. -Iport -O2 -Wall -fomit-frame-pointer -c htc.c
# In file included from htc.c:18:
# ./common.h:81:67: warning: too many arguments in call to 'log_annoying'
# log_annoying ("read (%d, %p, %d) ...", fd, rbuf + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:83:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:113:69: warning: too many arguments in call to 'log_annoying'
# log_annoying ("write (%d, %p, %d) ...", fd, wdata + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:115:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:162:34: warning: too many arguments in call to 'log_debug'
# log_debug ("%s closed", type);
# ~~~~~~~~~ ^
# htc.c:446:64: warning: too many arguments in call to 'log_debug'
# log_debug ("server_socket (%d) = %d", arg.forward_port, s);
# ~~~~~~~~~ ^
# htc.c:467:58: warning: too many arguments in call to 'log_debug'
# log_debug ("open_device (\"%s\") = %d", arg.device, fd);
# ~~~~~~~~~ ^
# htc.c:487:68: warning: too many arguments in call to 'log_debug'
# log_debug ("waiting for connection on port %d", arg.forward_port);
# ~~~~~~~~~ ^
# htc.c:489:63: warning: too many arguments in call to 'log_debug'
# log_debug ("wait_for_connection_on_socket (%d) = %d", s, fd);
# ~~~~~~~~~ ^
# htc.c:507:34: warning: too many arguments in call to 'log_debug'
# log_debug ("using stdin as fd");
# ~~~~~~~~~ ^
# htc.c:518:41: warning: too many arguments in call to 'log_debug'
# log_debug ("creating a new tunnel");
# ~~~~~~~~~ ^
# htc.c:531:22: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# htc.c:535:67: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_setopt keep_alive error: %s", strerror (errno));
# ~~~~~~~~~ ^
# htc.c:540:22: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# htc.c:597:7: warning: implicit declaration of function 'time' is invalid in C99 [-Wimplicit-function-declaration]
# time (&last_tunnel_write);
# ^
# htc.c:623:31: warning: too many arguments in call to 'log_annoying'
# log_annoying ("poll () ...");
# ~~~~~~~~~~~~ ^
# htc.c:625:31: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", n);
# ~~~~~~~~~~~~ ^
# htc.c:633:39: warning: too many arguments in call to 'log_verbose'
# log_verbose ("poll() timed out");
# ~~~~~~~~~~~ ^
# htc.c:656:37: warning: too many arguments in call to 'log_debug'
# log_debug ("destroying tunnel");
# ~~~~~~~~~ ^
# htc.c:670:37: warning: too many arguments in call to 'log_debug'
# log_debug ("closing server socket");
# ~~~~~~~~~ ^
# 20 warnings generated.
# clang -DHAVE_CONFIG_H -I. -I. -I. -Iport -O2 -Wall -fomit-frame-pointer -c common.c
# In file included from common.c:20:
# ./common.h:81:67: warning: too many arguments in call to 'log_annoying'
# log_annoying ("read (%d, %p, %d) ...", fd, rbuf + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:83:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:113:69: warning: too many arguments in call to 'log_annoying'
# log_annoying ("write (%d, %p, %d) ...", fd, wdata + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:115:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:162:34: warning: too many arguments in call to 'log_debug'
# log_debug ("%s closed", type);
# ~~~~~~~~~ ^
# common.c:173:64: warning: too many arguments in call to 'log_annoying'
# log_annoying ("set_address: gethostbyname (\"%s\")", host);
# ~~~~~~~~~~~~ ^
# common.c:175:49: warning: too many arguments in call to 'log_annoying'
# log_annoying ("set_address: ent = %p", ent);
# ~~~~~~~~~~~~ ^
# common.c:185:32: warning: too many arguments in call to 'log_annoying'
# ntohl (ip) & 0xff);
# ^
# common.c:272:72: warning: too many arguments in call to 'log_annoying'
# log_annoying ("tunnel_write (%p, %p, %d) = %d", tunnel, buf, n, m);
# ~~~~~~~~~~~~ ^
# common.c:302:61: warning: too many arguments in call to 'log_annoying'
# log_annoying ("handle_tunnel_input: tunnel_read() = %d\n", n);
# ~~~~~~~~~~~~ ^
# common.c:318:74: warning: too many arguments in call to 'log_annoying'
# log_annoying ("write_all (%d, %p, %d) = %d", fd ? fd : 1, buf, n, m);
# ~~~~~~~~~~~~ ^
# 11 warnings generated.
# clang -DHAVE_CONFIG_H -I. -I. -I. -Iport -O2 -Wall -fomit-frame-pointer -c tunnel.c
# In file included from tunnel.c:21:
# ./common.h:81:67: warning: too many arguments in call to 'log_annoying'
# log_annoying ("read (%d, %p, %d) ...", fd, rbuf + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:83:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:113:69: warning: too many arguments in call to 'log_annoying'
# log_annoying ("write (%d, %p, %d) ...", fd, wdata + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:115:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:162:34: warning: too many arguments in call to 'log_debug'
# log_debug ("%s closed", type);
# ~~~~~~~~~ ^
# tunnel.c:157:24: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# tunnel.c:164:5: warning: passing 'int *' to parameter of type 'socklen_t *' (aka 'unsigned int *') converts between pointers to integer types with different sign [-Wpointer-sign]
# &n);
# ^~
# /usr/include/sys/socket.h:221:32: note: passing argument to parameter '__optlen' here
# socklen_t *__restrict __optlen) __THROW;
# ^
# tunnel.c:165:62: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_out_setsockopts: SO_RCVLOWAT: %d", i);
# ~~~~~~~~~ ^
# tunnel.c:191:26: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# tunnel.c:198:7: warning: passing 'int *' to parameter of type 'socklen_t *' (aka 'unsigned int *') converts between pointers to integer types with different sign [-Wpointer-sign]
# &n);
# ^~
# /usr/include/sys/socket.h:221:32: note: passing argument to parameter '__optlen' here
# socklen_t *__restrict __optlen) __THROW;
# ^
# tunnel.c:199:67: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_out_setsockopts: non-fatal SO_SNDLOWAT: %d", i);
# ~~~~~~~~~ ^
# tunnel.c:218:22: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# tunnel.c:225:3: warning: passing 'int *' to parameter of type 'socklen_t *' (aka 'unsigned int *') converts between pointers to integer types with different sign [-Wpointer-sign]
# &n);
# ^~
# /usr/include/sys/socket.h:221:32: note: passing argument to parameter '__optlen' here
# socklen_t *__restrict __optlen) __THROW;
# ^
# tunnel.c:227:30: warning: too many arguments in call to 'log_debug'
# l.l_onoff, l.l_linger);
# ^
# tunnel.c:247:26: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# tunnel.c:254:7: warning: passing 'int *' to parameter of type 'socklen_t *' (aka 'unsigned int *') converts between pointers to integer types with different sign [-Wpointer-sign]
# &n);
# ^~
# /usr/include/sys/socket.h:221:32: note: passing argument to parameter '__optlen' here
# socklen_t *__restrict __optlen) __THROW;
# ^
# tunnel.c:255:67: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_out_setsockopts: non-fatal TCP_NODELAY: %d", i);
# ~~~~~~~~~ ^
# tunnel.c:296:22: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# tunnel.c:303:3: warning: passing 'int *' to parameter of type 'socklen_t *' (aka 'unsigned int *') converts between pointers to integer types with different sign [-Wpointer-sign]
# &n);
# ^~
# /usr/include/sys/socket.h:221:32: note: passing argument to parameter '__optlen' here
# socklen_t *__restrict __optlen) __THROW;
# ^
# tunnel.c:304:61: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_out_setsockopts: SO_KEEPALIVE: %d", i);
# ~~~~~~~~~ ^
# tunnel.c:331:58: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_out_disconnect: output disconnected");
# ~~~~~~~~~ ^
# tunnel.c:343:56: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_in_disconnect: input disconnected");
# ~~~~~~~~~ ^
# tunnel.c:353:57: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_out_connect: already connected");
# ~~~~~~~~~ ^
# tunnel.c:394:52: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_out_connect: output connected");
# ~~~~~~~~~ ^
# tunnel.c:405:37: warning: too many arguments in call to 'log_verbose'
# log_verbose ("tunnel_in_connect()");
# ~~~~~~~~~~~ ^
# tunnel.c:476:50: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_in_connect: input connected");
# ~~~~~~~~~ ^
# tunnel.c:512:32: warning: too many arguments in call to 'log_debug'
# tunnel->max_connection_age);
# ^
# tunnel.c:519:52: warning: too many arguments in call to 'log_debug'
# tunnel->content_length - tunnel->bytes - 1);
# ^
# tunnel.c:547:59: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_write_request: closing old connection");
# ~~~~~~~~~ ^
# tunnel.c:624:39: warning: too many arguments in call to 'log_verbose'
# REQ_TO_STRING (request), length);
# ^
# tunnel.c:627:39: warning: too many arguments in call to 'log_debug'
# REQ_TO_STRING (request), length);
# ^
# tunnel.c:632:69: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_write_request: %s", REQ_TO_STRING (request));
# ~~~~~~~~~ ^
# tunnel.c:636:24: warning: too many arguments in call to 'log_annoying'
# tunnel->out_total_raw);
# ^
# tunnel.c:662:34: warning: too many arguments in call to 'log_verbose'
# log_verbose ("tunnel_connect()");
# ~~~~~~~~~~~ ^
# tunnel.c:727:75: warning: too many arguments in call to 'log_verbose'
# log_verbose ("tunnel_write: out_total_data = %u", tunnel->out_total_data);
# ~~~~~~~~~~~ ^
# tunnel.c:756:46: warning: too many arguments in call to 'log_debug'
# tunnel->content_length - tunnel->bytes - 1);
# ^
# tunnel.c:760:56: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_close: write TUNNEL_CLOSE request");
# ~~~~~~~~~ ^
# tunnel.c:765:66: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_close: reading trailing data from input ...");
# ~~~~~~~~~ ^
# tunnel.c:776:41: warning: too many arguments in call to 'log_annoying'
# tunnel->in_fd, buf, sizeof buf, n);
# ^
# tunnel.c:782:64: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_close: ... error: %s", strerror (errno));
# ~~~~~~~~~ ^
# tunnel.c:784:57: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_close: ... done (tunnel closed)");
# ~~~~~~~~~ ^
# tunnel.c:787:22: warning: too many arguments in call to 'log_debug'
# log_debug ("POLLHUP");
# ~~~~~~~~~ ^
# tunnel.c:789:22: warning: too many arguments in call to 'log_debug'
# log_debug ("POLLERR");
# ~~~~~~~~~ ^
# tunnel.c:791:23: warning: too many arguments in call to 'log_debug'
# log_debug ("POLLNVAL");
# ~~~~~~~~~ ^
# tunnel.c:814:64: warning: too many arguments in call to 'log_annoying'
# log_annoying ("read (%d, %p, %d) ...", tunnel->in_fd, &req, 1);
# ~~~~~~~~~~~~ ^
# tunnel.c:816:30: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", n);
# ~~~~~~~~~~~~ ^
# tunnel.c:826:66: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_read_request: connection closed by peer");
# ~~~~~~~~~ ^
# tunnel.c:838:64: warning: too many arguments in call to 'log_annoying'
# log_annoying ("request = 0x%x (%s)", req, REQ_TO_STRING (req));
# ~~~~~~~~~~~~ ^
# tunnel.c:843:27: warning: too many arguments in call to 'log_annoying'
# tunnel->in_total_raw);
# ^
# tunnel.c:844:65: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_read_request: %s", REQ_TO_STRING (req));
# ~~~~~~~~~ ^
# tunnel.c:861:35: warning: too many arguments in call to 'log_annoying'
# log_annoying ("length = %d", len);
# ~~~~~~~~~~~~ ^
# tunnel.c:876:27: warning: too many arguments in call to 'log_annoying'
# tunnel->in_total_raw);
# ^
# tunnel.c:881:28: warning: too many arguments in call to 'log_verbose'
# REQ_TO_STRING (req), len);
# ^
# tunnel.c:884:33: warning: too many arguments in call to 'log_debug'
# REQ_TO_STRING (req), len);
# ^
# tunnel.c:934:42: warning: passing 'char [65536]' to parameter of type 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# if (tunnel_read_request (tunnel, &req, tunnel->buf, &len) <= 0)
# ^~~~~~~~~~~
# tunnel.c:808:23: note: passing argument to parameter 'buf' here
# unsigned char *buf, size_t *length)
# ^
# tunnel.c:936:64: warning: too many arguments in call to 'log_annoying'
# log_annoying ("tunnel_read_request returned <= 0, returning -1");
# ~~~~~~~~~~~~ ^
# tunnel.c:950:76: warning: too many arguments in call to 'log_verbose'
# log_verbose ("tunnel_read: in_total_data = %u", tunnel->in_total_data);
# ~~~~~~~~~~~ ^
# tunnel.c:998:29: warning: too many arguments in call to 'log_verbose'
# tunnel->server_socket);
# ^
# tunnel.c:1001:29: warning: too many arguments in call to 'log_verbose'
# tunnel->server_socket);
# ^
# tunnel.c:1085:61: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_accept: tunnel already established");
# ~~~~~~~~~ ^
# tunnel.c:1115:68: warning: passing 'int *' to parameter of type 'socklen_t *' (aka 'unsigned int *') converts between pointers to integer types with different sign [-Wpointer-sign]
# s = accept (tunnel->server_socket, (struct sockaddr *)&addr, &len);
# ^~~~
# /usr/include/sys/socket.h:244:28: note: passing argument to parameter '__addr_len' here
# socklen_t *__restrict __addr_len);
# ^
# tunnel.c:1158:51: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_accept: input connected");
# ~~~~~~~~~ ^
# tunnel.c:1191:10: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
# tunnel->content_length + 1);
# ^~~~~~~~~~~~~~~~~~~~~~~~~~
# tunnel.c:1209:49: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_accept: output connected");
# ~~~~~~~~~ ^
# tunnel.c:1222:50: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_accept: closing connection");
# ~~~~~~~~~ ^
# tunnel.c:1237:53: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_accept: input disconnected");
# ~~~~~~~~~ ^
# tunnel.c:1133:27: warning: comparison of constant -1 with expression of type 'Http_method' is always false [-Wtautological-constant-out-of-range-compare]
# if (request->method == -1)
# ~~~~~~~~~~~~~~~ ^ ~~
# tunnel.c:1312:23: warning: too many arguments in call to 'log_verbose'
# content_length);
# ^
# 68 warnings generated.
# clang -DHAVE_CONFIG_H -I. -I. -I. -Iport -O2 -Wall -fomit-frame-pointer -c http.c
# In file included from http.c:15:
# ./common.h:81:67: warning: too many arguments in call to 'log_annoying'
# log_annoying ("read (%d, %p, %d) ...", fd, rbuf + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:83:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:113:69: warning: too many arguments in call to 'log_annoying'
# log_annoying ("write (%d, %p, %d) ...", fd, wdata + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:115:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:162:34: warning: too many arguments in call to 'log_debug'
# log_debug ("%s closed", type);
# ~~~~~~~~~ ^
# http.c:45:27: warning: format specifies type 'int' but the argument has type 'ssize_t' (aka 'long') [-Wformat]
# sprintf (str, "%d", length);
# ~~ ^~~~~~
# %zd
# http.c:329:11: warning: assigning to 'const char *' from 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# h->name = data;
# ^ ~~~~
# http.c:336:12: warning: assigning to 'const char *' from 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# h->value = data;
# ^ ~~~~
# http.c:350:56: warning: too many arguments in call to 'log_verbose'
# log_verbose ("parse_header: %s:%s", h->name, h->value);
# ~~~~~~~~~~~ ^
# http.c:506:35: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# response->major_version = atoi (data);
# ^~~~
# /usr/include/stdlib.h:278:26: note: passing argument to parameter '__nptr' here
# __NTH (atoi (const char *__nptr))
# ^
# http.c:508:32: warning: too many arguments in call to 'log_verbose'
# response->major_version);
# ^
# http.c:519:35: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# response->minor_version = atoi (data);
# ^~~~
# /usr/include/stdlib.h:278:26: note: passing argument to parameter '__nptr' here
# __NTH (atoi (const char *__nptr))
# ^
# http.c:521:32: warning: too many arguments in call to 'log_verbose'
# response->minor_version);
# ^
# http.c:532:33: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# response->status_code = atoi (data);
# ^~~~
# /usr/include/stdlib.h:278:26: note: passing argument to parameter '__nptr' here
# __NTH (atoi (const char *__nptr))
# ^
# http.c:534:30: warning: too many arguments in call to 'log_verbose'
# response->status_code);
# ^
# http.c:545:28: warning: assigning to 'const char *' from 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# response->status_message = data;
# ^ ~~~~
# http.c:547:33: warning: too many arguments in call to 'log_verbose'
# response->status_message);
# ^
# http.c:654:44: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# request->method = http_string_to_method (data, n - 1);
# ^~~~
# http.c:157:36: note: passing argument to parameter 'method' here
# http_string_to_method (const char *method, size_t n)
# ^
# http.c:663:59: warning: too many arguments in call to 'log_verbose'
# log_verbose ("http_parse_request: method = \"%s\"", data);
# ~~~~~~~~~~~ ^
# http.c:674:16: warning: assigning to 'const char *' from 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# request->uri = data;
# ^ ~~~~
# http.c:676:64: warning: too many arguments in call to 'log_verbose'
# log_verbose ("http_parse_request: uri = \"%s\"", request->uri);
# ~~~~~~~~~~~ ^
# http.c:701:34: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# request->major_version = atoi (data);
# ^~~~
# /usr/include/stdlib.h:278:26: note: passing argument to parameter '__nptr' here
# __NTH (atoi (const char *__nptr))
# ^
# http.c:703:31: warning: too many arguments in call to 'log_verbose'
# request->major_version);
# ^
# http.c:714:34: warning: passing 'unsigned char *' to parameter of type 'const char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# request->minor_version = atoi (data);
# ^~~~
# /usr/include/stdlib.h:278:26: note: passing argument to parameter '__nptr' here
# __NTH (atoi (const char *__nptr))
# ^
# http.c:716:31: warning: too many arguments in call to 'log_verbose'
# request->minor_version);
# ^
# http.c:655:23: warning: comparison of constant -1 with expression of type 'Http_method' is always false [-Wtautological-constant-out-of-range-compare]
# if (request->method == -1)
# ~~~~~~~~~~~~~~~ ^ ~~
# http.c:760:45: warning: too many arguments in call to 'log_verbose'
# log_verbose ("http_write_request: %s", str);
# ~~~~~~~~~~~ ^
# 27 warnings generated.
# clang -DHAVE_CONFIG_H -I. -I. -I. -Iport -O2 -Wall -fomit-frame-pointer -c base64.c
# In file included from base64.c:11:
# ./common.h:81:67: warning: too many arguments in call to 'log_annoying'
# log_annoying ("read (%d, %p, %d) ...", fd, rbuf + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:83:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:113:69: warning: too many arguments in call to 'log_annoying'
# log_annoying ("write (%d, %p, %d) ...", fd, wdata + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:115:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:162:34: warning: too many arguments in call to 'log_debug'
# log_debug ("%s closed", type);
# ~~~~~~~~~ ^
# base64.c:44:7: warning: assigning to 'const unsigned char *' from 'char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# end = (char *)data + length - 3;
# ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
# base64.c:91:9: warning: assigning to 'char *' from 'unsigned char *' converts between pointers to integer types with different sign [-Wpointer-sign]
# *code = buf - n;
# ^ ~~~~~~~
# 7 warnings generated.
# clang -O2 -Wall -fomit-frame-pointer -o htc htc.o common.o tunnel.o http.o base64.o -Lport -lport
# clang -DHAVE_CONFIG_H -I. -I. -I. -Iport -O2 -Wall -fomit-frame-pointer -c hts.c
# In file included from hts.c:17:
# ./common.h:81:67: warning: too many arguments in call to 'log_annoying'
# log_annoying ("read (%d, %p, %d) ...", fd, rbuf + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:83:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:113:69: warning: too many arguments in call to 'log_annoying'
# log_annoying ("write (%d, %p, %d) ...", fd, wdata + n, len - n);
# ~~~~~~~~~~~~ ^
# ./common.h:115:34: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", m);
# ~~~~~~~~~~~~ ^
# ./common.h:162:34: warning: too many arguments in call to 'log_debug'
# log_debug ("%s closed", type);
# ~~~~~~~~~ ^
# hts.c:321:25: warning: too many arguments in call to 'log_debug'
# strerror (errno));
# ^
# hts.c:325:70: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_setopt keep_alive error: %s", strerror (errno));
# ~~~~~~~~~ ^
# hts.c:329:78: warning: too many arguments in call to 'log_debug'
# log_debug ("tunnel_setopt max_connection_age error: %s", strerror (errno));
# ~~~~~~~~~ ^
# hts.c:360:49: warning: too many arguments in call to 'log_debug'
# log_debug ("waiting for tunnel connection");
# ~~~~~~~~~ ^
# hts.c:365:58: warning: too many arguments in call to 'log_debug'
# log_debug ("open_device (\"%s\") = %d", arg.device, fd);
# ~~~~~~~~~ ^
# hts.c:383:34: warning: too many arguments in call to 'log_debug'
# log_debug ("using stdin as fd");
# ~~~~~~~~~ ^
# hts.c:413:42: warning: too many arguments in call to 'log_debug'
# arg.forward_host, arg.forward_port, fd);
# ^
# hts.c:433:7: warning: implicit declaration of function 'time' is invalid in C99 [-Wimplicit-function-declaration]
# time (&last_tunnel_write);
# ^
# hts.c:451:31: warning: too many arguments in call to 'log_annoying'
# log_annoying ("poll () ...");
# ~~~~~~~~~~~~ ^
# hts.c:453:31: warning: too many arguments in call to 'log_annoying'
# log_annoying ("... = %d", n);
# ~~~~~~~~~~~~ ^
# hts.c:461:39: warning: too many arguments in call to 'log_verbose'
# log_verbose ("poll() timed out");
# ~~~~~~~~~~~ ^
# hts.c:468:48: warning: too many arguments in call to 'log_annoying'
# pollfd[0].revents, pollfd[1].revents, POLLIN);
# ^
# hts.c:478:34: warning: too many arguments in call to 'log_debug'
# log_debug ("closing tunnel");
# ~~~~~~~~~ ^
# hts.c:487:33: warning: too many arguments in call to 'log_debug'
# log_debug ("destroying tunnel");
# ~~~~~~~~~ ^
# 19 warnings generated.
# clang -O2 -Wall -fomit-frame-pointer -o hts hts.o common.o tunnel.o http.o -Lport -lport
# make[2]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3'
# make[1]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3'
# ==> Entering fakeroot environment...
# ==> Starting package()...
# Making install in port
# make[1]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# Making install in sys
# make[2]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port/sys'
# make[3]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port/sys'
# make[3]: Nothing to be done for 'install-exec-am'.
# make[3]: Nothing to be done for 'install-data-am'.
# make[3]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port/sys'
# make[2]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port/sys'
# make[2]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# make[3]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# make[3]: Nothing to be done for 'install-exec-am'.
# make[3]: Nothing to be done for 'install-data-am'.
# make[3]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# make[2]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# make[1]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3/port'
# make[1]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3'
# make[2]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3'
# /bin/sh ./mkinstalldirs /tmp/httptunnel/pkg/httptunnel/usr/bin
# mkdir /tmp/httptunnel/pkg/httptunnel/usr
# mkdir /tmp/httptunnel/pkg/httptunnel/usr/bin
# /usr/bin/install -c htc /tmp/httptunnel/pkg/httptunnel/usr/bin/htc
# /usr/bin/install -c hts /tmp/httptunnel/pkg/httptunnel/usr/bin/hts
# make install-man1
# make[3]: Entering directory '/tmp/httptunnel/src/httptunnel-3.3'
# /bin/sh ./mkinstalldirs /tmp/httptunnel/pkg/httptunnel/usr/share/man/man1
# mkdir /tmp/httptunnel/pkg/httptunnel/usr/share
# mkdir /tmp/httptunnel/pkg/httptunnel/usr/share/man
# mkdir /tmp/httptunnel/pkg/httptunnel/usr/share/man/man1
# /usr/bin/install -c -m 644 ./hts.1 /tmp/httptunnel/pkg/httptunnel/usr/share/man/man1/hts.1
# /usr/bin/install -c -m 644 ./htc.1 /tmp/httptunnel/pkg/httptunnel/usr/share/man/man1/htc.1
# make[3]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3'
# make[2]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3'
# make[1]: Leaving directory '/tmp/httptunnel/src/httptunnel-3.3'
# ==> Tidying install...
# -> Removing doc files...
# -> Purging unwanted files...
# ==> Checking for packaging issue...
# ==> Creating package "httptunnel"...
# -> Generating .PKGINFO file...
# -> Generating .BUILDINFO file...
# error: invalid option '--noprogressbar'
# -> Generating .MTREE file...
# -> Compressing package...
# ==> Leaving fakeroot environment.
# ==> Finished making: httptunnel 3.3-5 (Thu Apr 13 11:17:39 UTC 2017)

# httptunnel 3.3-5

# httptunnel 3.3-5

# /.PKGINFO
# /.BUILDINFO
# /.MTREE
# /usr/share/man/man1/hts.1.gz
# /usr/share/man/man1/htc.1.gz
# /usr/bin/htc
# /usr/bin/hts

# .PKGINFO

# ==> Extracting database to a temporary location...
# ==> Extracting database to a temporary location...
# ==> Adding package '/var/cache/pacman/pkg/httptunnel.pkg.tar.xz'
# -> Computing checksums...
# -> Creating 'desc' db entry...
# -> Creating 'files' db entry...
# ==> Creating updated database file '/var/cache/pacman/pkg/tuscan.db.tar'

# This file contains any messages produced by compilers while
# running configure, to aid debugging if configure makes a mistake.
#
# configure:558: checking for a BSD compatible install
# configure:611: checking whether build environment is sane
# configure:668: checking whether make sets ${MAKE}
# configure:714: checking for working aclocal
# configure:727: checking for working autoconf
# configure:740: checking for working automake
# configure:753: checking for working autoheader
# configure:766: checking for working makeinfo
# configure:816: checking for mawk
# configure:816: checking for gawk
# configure:848: checking for gcc
# configure:961: checking whether the C compiler (clang -O2 -Wall -fomit-frame-pointer ) works
# configure:977: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:974:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
# main(){return(0);}
# ^
# 1 warning generated.
# configure:1003: checking whether the C compiler (clang -O2 -Wall -fomit-frame-pointer ) is a cross-compiler
# configure:1008: checking whether we are using GNU C
# configure:1017: clang -E conftest.c
# configure:1036: checking whether clang accepts -g
# configure:1098: checking for a BSD compatible install
# configure:1151: checking whether ln -s works
# configure:1174: checking for ranlib
# configure:1203: checking for gethostent
# configure:1231: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1298: checking for setsockopt
# configure:1326: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1394: checking how to run the C preprocessor
# configure:1415: clang -E conftest.c >/dev/null 2>conftest.out
# configure:1474: checking for ANSI C header files
# configure:1487: clang -E conftest.c >/dev/null 2>conftest.out
# configure:1554: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1549:67: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
# ^
# configure:1549:67: note: include the header or explicitly provide a declaration for 'exit'
# 1 warning generated.
# configure:1581: checking for fcntl.h
# configure:1591: clang -E conftest.c >/dev/null 2>conftest.out
# configure:1581: checking for syslog.h
# configure:1591: clang -E conftest.c >/dev/null 2>conftest.out
# configure:1581: checking for unistd.h
# configure:1591: clang -E conftest.c >/dev/null 2>conftest.out
# configure:1581: checking for sys/poll.h
# configure:1591: clang -E conftest.c >/dev/null 2>conftest.out
# configure:1619: checking for working const
# configure:1673: clang -c -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1647:15: warning: unused variable 's' [-Wunused-variable]
# char const *s = 0 ? (char *) 0 : (char const *) 0;
# ^
# configure:1667:13: warning: unused variable 'foo' [-Wunused-variable]
# const int foo = 10;
# ^
# configure:1629:39: warning: unused variable 'x' [-Wunused-variable]
# typedef int charset[2]; const charset x = {0,0};
# ^
# configure:1635:27: warning: unused variable 'zero' [-Wunused-variable]
# static struct point const zero = {0,0};
# ^
# configure:1649:4: warning: variable 't' is uninitialized when used here [-Wuninitialized]
# *t++ = 0;
# ^
# configure:1646:10: note: initialize the variable 't' to silence this warning
# char *t;
# ^
# = 0
# configure:1664:16: warning: variable 'b' is uninitialized when used here [-Wuninitialized]
# struct s *b; b->j = 5;
# ^
# configure:1664:14: note: initialize the variable 'b' to silence this warning
# struct s *b; b->j = 5;
# ^
# = 0
# 6 warnings generated.
# configure:1694: checking for inline
# configure:1708: clang -c -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1734: checking for size_t
# configure:1768: checking for socklen_t
# configure:1782: clang -c -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1778:11: warning: unused variable 'len' [-Wunused-variable]
# socklen_t len = 42; return 0;
# ^
# 1 warning generated.
# configure:1804: checking whether INADDR_NONE is defined
# configure:1818: clang -c -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1840: checking size of char
# configure:1859: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1850:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
# main()
# ^
# configure:1853:11: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# if (!f) exit(1);
# ^
# configure:1853:11: note: include the header or explicitly provide a declaration for 'exit'
# configure:1854:22: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
# fprintf(f, "%d\n", sizeof(char));
# ~~ ^~~~~~~~~~~~
# %lu
# 3 warnings generated.
# configure:1879: checking size of short
# configure:1898: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1889:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
# main()
# ^
# configure:1892:11: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# if (!f) exit(1);
# ^
# configure:1892:11: note: include the header or explicitly provide a declaration for 'exit'
# configure:1893:22: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
# fprintf(f, "%d\n", sizeof(short));
# ~~ ^~~~~~~~~~~~~
# %lu
# 3 warnings generated.
# configure:1918: checking size of int
# configure:1937: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1928:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
# main()
# ^
# configure:1931:11: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# if (!f) exit(1);
# ^
# configure:1931:11: note: include the header or explicitly provide a declaration for 'exit'
# configure:1932:22: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
# fprintf(f, "%d\n", sizeof(int));
# ~~ ^~~~~~~~~~~
# %lu
# 3 warnings generated.
# configure:1957: checking size of long
# configure:1976: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:1967:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
# main()
# ^
# configure:1970:11: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# if (!f) exit(1);
# ^
# configure:1970:11: note: include the header or explicitly provide a declaration for 'exit'
# configure:1971:22: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
# fprintf(f, "%d\n", sizeof(long));
# ~~ ^~~~~~~~~~~~
# %lu
# 3 warnings generated.
# configure:1996: checking size of long long
# configure:2015: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2006:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
# main()
# ^
# configure:2009:11: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# if (!f) exit(1);
# ^
# configure:2009:11: note: include the header or explicitly provide a declaration for 'exit'
# configure:2010:22: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
# fprintf(f, "%d\n", sizeof(long long));
# ~~ ^~~~~~~~~~~~~~~~~
# %lu
# 3 warnings generated.
# configure:2036: checking for 8-bit clean memcmp
# configure:2054: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2046:1: warning: type specifier missing, defaults to 'int' [-Wimplicit-int]
# main()
# ^
# configure:2049:3: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# exit(memcmp(&c0, &c2, 1) < 0 && memcmp(&c1, &c2, 1) < 0 ? 0 : 1);
# ^
# configure:2049:3: note: include the header or explicitly provide a declaration for 'exit'
# configure:2049:8: warning: implicitly declaring library function 'memcmp' with type 'int (const void *, const void *, unsigned long)' [-Wimplicit-function-declaration]
# exit(memcmp(&c0, &c2, 1) < 0 && memcmp(&c1, &c2, 1) < 0 ? 0 : 1);
# ^
# configure:2049:8: note: include the header or explicitly provide a declaration for 'memcmp'
# 3 warnings generated.
# configure:2072: checking return type of signal handlers
# configure:2094: clang -c -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2090:5: warning: unused variable 'i' [-Wunused-variable]
# int i;
# ^
# 1 warning generated.
# configure:2113: checking for vprintf
# configure:2141: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2125:6: warning: incompatible redeclaration of library function 'vprintf' [-Wincompatible-library-redeclaration]
# char vprintf();
# ^
# configure:2125:6: note: 'vprintf' is a builtin with type 'int (const char *, struct __va_list_tag *)'
# 1 warning generated.
# configure:2220: checking for socket
# configure:2248: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2220: checking for strdup
# configure:2248: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2232:6: warning: incompatible redeclaration of library function 'strdup' [-Wincompatible-library-redeclaration]
# char strdup();
# ^
# configure:2232:6: note: 'strdup' is a builtin with type 'char *(const char *)'
# 1 warning generated.
# configure:2220: checking for strerror
# configure:2248: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2232:6: warning: incompatible redeclaration of library function 'strerror' [-Wincompatible-library-redeclaration]
# char strerror();
# ^
# configure:2232:6: note: 'strerror' is a builtin with type 'char *(int)'
# 1 warning generated.
# configure:2220: checking for daemon
# configure:2248: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2220: checking for vsyslog
# configure:2248: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2275: checking for poll
# configure:2303: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2275: checking for select
# configure:2303: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2275: checking for endprotoent
# configure:2303: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2275: checking for vsnprintf
# configure:2303: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5
# configure:2287:6: warning: incompatible redeclaration of library function 'vsnprintf' [-Wincompatible-library-redeclaration]
# char vsnprintf();
# ^
# configure:2287:6: note: 'vsnprintf' is a builtin with type 'int (char *, unsigned long, const char *, struct __va_list_tag *)'
# 1 warning generated.
# configure:2275: checking for syslog
# configure:2303: clang -o conftest -O2 -Wall -fomit-frame-pointer conftest.c 1>&5